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Low 10 second B body engine/trans big block combos.
#2478459
04/06/18 07:29 PM
04/06/18 07:29 PM
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Joined: Aug 2017
Posts: 50
Where else?
BigHemiVegas
OP
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OP
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Joined: Aug 2017
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I am looking to get a 1968 Dodge Charger into the low 10's or high 9's in the quarter. It will be all steel and most likely weigh around 3700. If you could post your detailed combo it would be appreciated. I did a search and couldnt find anything like this although I am sure it has been asked before. So if you have a link to combos then that would be great also.
Please be as detailed as possible.
What cubic inch RB, Hemi or Low Deck?
What brand block and what was prepped? Was block filled?
What cylinder heads,who ported them to what CFM and CC chamber volume?
Rocker arms,ratio and springs?
Intake,carb,spacer?
What headers?
Compression ratio using what pistons?
What stroke of crank and rods and brand?
Oiling system? Fuel system?
Transmission are you running?
What rear gear? Type of differential and axles?
What is your ET and MPH
Last edited by BigHemiVegas; 04/06/18 07:31 PM.
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Re: Low 10 second B body engine/trans big block combos.
[Re: BigHemiVegas]
#2478479
04/06/18 08:15 PM
04/06/18 08:15 PM
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Joined: May 2015
Posts: 1,134
Lost in Time
Iowan
super stock
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super stock
Joined: May 2015
Posts: 1,134
Lost in Time
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Looks like about 750hp to run 10 flat.
Have a great day
Iowan
"obsolete is neat"
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Re: Low 10 second B body engine/trans big block combos.
[Re: BigHemiVegas]
#2478516
04/06/18 10:08 PM
04/06/18 10:08 PM
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Joined: Oct 2007
Posts: 4,206
New York
polyspheric
master
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master
Joined: Oct 2007
Posts: 4,206
New York
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There's easily $10,000 spread between different recipes.
What's the budget?
Boffin Emeritus
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Re: Low 10 second B body engine/trans big block combos.
[Re: merpar]
#2478561
04/06/18 11:41 PM
04/06/18 11:41 PM
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Joined: Dec 2013
Posts: 4,672
Wichita
GY3
master
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master
Joined: Dec 2013
Posts: 4,672
Wichita
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Lose about 1200 lbs, then run a 451 that makes 600hp. About the cheapest route. Yep. That or add nitrous and spray it!
'63 Dodge 330
11.19 @ 121 mph
Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs.
10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.
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Re: Low 10 second B body engine/trans big block combos.
[Re: BigHemiVegas]
#2478667
04/07/18 03:05 AM
04/07/18 03:05 AM
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Joined: Oct 2011
Posts: 326
Alberta
Wookie316
enthusiast
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enthusiast
Joined: Oct 2011
Posts: 326
Alberta
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My 71 fits your needs. I run 10 teens to 10.20’s at 4100 with me in it. Well I ran that till I found a cracked head and a scored cylinder a few weeks ago. Anyway here is the combo as it was.
4.30 Dana with a 29.5x10.5 M/T PBR. 727 with a low gear set and a 9.5” converter built by Lenny at Ultimate. It flashes around 5100. I leave off the brake at 3000. I have a alterkation front end and street lynx 4 link in the rear. Viking double adjustable shocks on all 4 corners. That is the basic drivetrain and suspension setup.
Motor. 400 low deck with a 4.375 bore and 4.25 stroke. I run C12 on 13.5-1 CR. Up top are Indy EZ-1 with a 2.25 intake valve. They flow 350 @ .700 I believe. 1.6 T&D rockers. Cam is a custom grind Comp solid roller. 268/276 @ .050. Lift is .721/.711 with the 1.6.
Single plane Indy Manifold with a 1050 Dominator on it. 2 1/8” TTI headers. Distributor is locked out at 36. I have a vac pump and electric WP. I do run P/S for the hydroboost and rack.
Motor made 838 HP on the dyno.
I have to put my 440 back in the car and figure out what I’ll do with the big motor. So won’t be running low 10’s this year. Dang.
1971 Plum Crazy Super Bee. 572 World Aluminum block with a Cope 727 & Dana 4.10 out back. 9.88 @ 138 with a 1.35 60 NA. Dialed back to 10.0’s. 4000 lbs with me in it.
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Re: Low 10 second B body engine/trans big block combos.
[Re: BigHemiVegas]
#2478719
04/07/18 08:50 AM
04/07/18 08:50 AM
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Joined: Oct 2015
Posts: 570
UK
rb446
mopar
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mopar
Joined: Oct 2015
Posts: 570
UK
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If you don't want to be at 12>13:1 and race gas follow AndyF's 470 build, 10.5:1 775hp> http://www.hotrod.com/articles/dyno-tested-vacuum-pump-help-engine-make-power/Suggested chassis would be 5000stall, 31" tyre/4.56's and your ticket would look something like this if shocks etc. are up to the hit> calculated at a race weight of 3800lbs@775fwhp actual on track power. 60 Foot E.T. : 1.38 1/8 Mile E.T. : 6.24 1/8 Mile Trap Speed : 108.86 1/4 Mile E.T. : 9.90 1/4 Mile Trap Speed : 135 1/4 Mile Trap RPM : 6,698+slip However what something makes on a dyno and then at the track is another thing. I would aim for 800hp in your weight to be safe@9.90's.
1969 'Cuda 446ci, best 9.96@133.9 in 1990
1971 340 'Cuda, best 11.01@122.8 in 1987
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Re: Low 10 second B body engine/trans big block combos.
[Re: BigHemiVegas]
#2478787
04/07/18 11:55 AM
04/07/18 11:55 AM
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Joined: May 2003
Posts: 13,187
aZLiViN
J_BODY
I Live Here
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I Live Here
Joined: May 2003
Posts: 13,187
aZLiViN
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If your screen name is an indicator of where you reside.... you're going to need some serious HP to get a 3700lb car into the 9's. While my Mirada had a pretty "basic" RB build, I was still just shy 500lb of your projected weight and ran a best of 10.28 in Vegas. I'm already seeing -1's or a B1 build in your future.... call me crazy. ....or go down the road of our resident "cheater" Dizuster  Boost would definitely be your friend.
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Re: Low 10 second B body engine/trans big block combos.
[Re: BigHemiVegas]
#2478830
04/07/18 01:53 PM
04/07/18 01:53 PM
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Joined: Jan 2003
Posts: 4,270
Morrow, OH
markz528
master
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master
Joined: Jan 2003
Posts: 4,270
Morrow, OH
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I'm in the middle of a similar street/strip build. 69 GTX Hope to get there with the aftermarket (the block) 505 wedge with Trick Flow 270 heads, Mopar 337 intake and a Dwayne Porter mechanical roller cam.
67 Coronet 500 9.610 @ 139.20 mph
67 Coronet 500 (street car) 14.82 @ 94 mph
69 GTX (clone) - build in progress......
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Re: Low 10 second B body engine/trans big block combos.
[Re: BigHemiVegas]
#2478832
04/07/18 01:59 PM
04/07/18 01:59 PM
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Joined: Jan 2003
Posts: 11,711
Portage,michigan
B3422W5
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 11,711
Portage,michigan
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I went 9.80’s at 135 ish with 650 horse at 3350
Adding 350 pounds on to run the same MPH is about 70 horse.
True 725 horse motor should get a 3700 pound car in the 9’s with no sweat. Should run 10 flat in the summer time
Last edited by B3422W5; 04/07/18 02:00 PM.
69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight
418 BPE factory replacement headed stroker, 565 lift solid cam
Best so far, 10.40 @127 1/4
1.41 best 60 foot
6.60 at 103.90 1/8
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Re: Low 10 second B body engine/trans big block combos.
[Re: BigHemiVegas]
#2478836
04/07/18 02:09 PM
04/07/18 02:09 PM
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Joined: Jan 2004
Posts: 667
IL
Dart451
mopar
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mopar
Joined: Jan 2004
Posts: 667
IL
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Re: Low 10 second B body engine/trans big block combos.
[Re: dizuster]
#2478868
04/07/18 03:27 PM
04/07/18 03:27 PM
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Joined: Aug 2017
Posts: 50
Where else?
BigHemiVegas
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OP
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Cast crank, stock rod 360, set of forged pistons, $125 regrind on the factory hydraulic roller, $700 turbo fed from stock exhaust manifolds. 10.08@136mph at 3700lbs with a 3.23 gear on street tires.
Most unconventional and cheapest way to do it for sure. How much boost are you running? What size turbo? What pistons and what is your compression? What brand cylinder head? The cam duration and lift would be great to know as well. I wouldnt be going small block but it would be interesting to find out.
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Re: Low 10 second B body engine/trans big block combos.
[Re: Wookie316]
#2478870
04/07/18 03:31 PM
04/07/18 03:31 PM
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Joined: Aug 2017
Posts: 50
Where else?
BigHemiVegas
OP
member
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OP
member
Joined: Aug 2017
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My 71 fits your needs. I run 10 teens to 10.20’s at 4100 with me in it. Well I ran that till I found a cracked head and a scored cylinder a few weeks ago. Anyway here is the combo as it was.
4.30 Dana with a 29.5x10.5 M/T PBR. 727 with a low gear set and a 9.5” converter built by Lenny at Ultimate. It flashes around 5100. I leave off the brake at 3000. I have a alterkation front end and street lynx 4 link in the rear. Viking double adjustable shocks on all 4 corners. That is the basic drivetrain and suspension setup.
Motor. 400 low deck with a 4.375 bore and 4.25 stroke. I run C12 on 13.5-1 CR. Up top are Indy EZ-1 with a 2.25 intake valve. They flow 350 @ .700 I believe. 1.6 T&D rockers. Cam is a custom grind Comp solid roller. 268/276 @ .050. Lift is .721/.711 with the 1.6.
Single plane Indy Manifold with a 1050 Dominator on it. 2 1/8” TTI headers. Distributor is locked out at 36. I have a vac pump and electric WP. I do run P/S for the hydroboost and rack.
Motor made 838 HP on the dyno.
I have to put my 440 back in the car and figure out what I’ll do with the big motor. So won’t be running low 10’s this year. Dang. Are you running a stock block and what all preparation has been done to it? Did you use block fill?
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Re: Low 10 second B body engine/trans big block combos.
[Re: dizuster]
#2478871
04/07/18 03:32 PM
04/07/18 03:32 PM
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Joined: Jan 2003
Posts: 7,489
Minnesota
Hemi_Joel
master
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master
Joined: Jan 2003
Posts: 7,489
Minnesota
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Cast crank, stock rod 360, set of forged pistons, $125 regrind on the factory hydraulic roller, $700 turbo fed from stock exhaust manifolds. 10.08@136mph at 3700lbs with a 3.23 gear on street tires.
Most unconventional and cheapest way to do it for sure. With all due respect, that's a lot to ask of those stock parts. I hope you splurged on the safety stuff. 
[img]http://i.imgur.com/boeexFms.jpg[/img]31 Plymouth Coupe, 392 Hemi, T56 magnum RS23J71 RS27J77 RP23J71 RO23J71 WM21J8A I don't regret the things I've done. I only regret the things I didn't do. "Wise men talk because they have something to say; fools because they have to say something. ~ Plato"
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Re: Low 10 second B body engine/trans big block combos.
[Re: dizuster]
#2478880
04/07/18 03:42 PM
04/07/18 03:42 PM
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Joined: May 2004
Posts: 12,386
Taxes & Virus's R-US, NY
Dragula
I Live Here
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I Live Here
Joined: May 2004
Posts: 12,386
Taxes & Virus's R-US, NY
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Cast crank, stock rod 360, set of forged pistons, $125 regrind on the factory hydraulic roller, $700 turbo fed from stock exhaust manifolds. 10.08@136mph at 3700lbs with a 3.23 gear on street tires.
Most unconventional and cheapest way to do it for sure. It took you a while to get there....Your kinda minimizing all the hard work, time, and learning you did in the process. Still an awesome build. Always wondered why you never ran Drag week with it.
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Re: Low 10 second B body engine/trans big block combos.
[Re: rb446]
#2478881
04/07/18 03:45 PM
04/07/18 03:45 PM
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Joined: Aug 2017
Posts: 50
Where else?
BigHemiVegas
OP
member
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OP
member
Joined: Aug 2017
Posts: 50
Where else?
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If you don't want to be at 12>13:1 and race gas follow AndyF's 470 build, 10.5:1 775hp> http://www.hotrod.com/articles/dyno-tested-vacuum-pump-help-engine-make-power/Suggested chassis would be 5000stall, 31" tyre/4.56's and your ticket would look something like this if shocks etc. are up to the hit> calculated at a race weight of 3800lbs@775fwhp actual on track power. 60 Foot E.T. : 1.38 1/8 Mile E.T. : 6.24 1/8 Mile Trap Speed : 108.86 1/4 Mile E.T. : 9.90 1/4 Mile Trap Speed : 135 1/4 Mile Trap RPM : 6,698+slip However what something makes on a dyno and then at the track is another thing. I would aim for 800hp in your weight to be safe@9.90's. Awesome and thanks. That is a very interesting read.
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Re: Low 10 second B body engine/trans big block combos.
[Re: B3422W5]
#2478884
04/07/18 03:49 PM
04/07/18 03:49 PM
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Joined: Aug 2017
Posts: 50
Where else?
BigHemiVegas
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OP
member
Joined: Aug 2017
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I went 9.80’s at 135 ish with 650 horse at 3350
Adding 350 pounds on to run the same MPH is about 70 horse.
True 725 horse motor should get a 3700 pound car in the 9’s with no sweat. Should run 10 flat in the summer time Thanks for the input and is good information.
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Re: Low 10 second B body engine/trans big block combos.
[Re: BigHemiVegas]
#2478885
04/07/18 03:50 PM
04/07/18 03:50 PM
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Joined: Jan 2003
Posts: 9,995
Frostbitefalls MN (Rocky&Bullw...
gregsdart
master
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master
Joined: Jan 2003
Posts: 9,995
Frostbitefalls MN (Rocky&Bullw...
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Cubic inches are your friend. The more you have, the less you have to push the valvetrain and rpm. If you can find a good 540 or 572 race motor and put a set of dished pistons in it and a mild roller cam, provided you have the budget, you could run a lot less rear gear and still meet your goal. That is what i am considering doing with my 528 when the day comes to retire from the track.
I would go 11.00 compression, 572 cubes, minimum head would be a 440-1 ported, dominater carb on a single plane intake, 2 1/8 headers, converter, tires and gears dependant on wheel well space. Biggest bias type slick you can run, gear it for 6500 rpm at 135 mph. Torqueflite with about 5,000 stall. This will allow pumpgas, and live a long happy life.
If budget dictates a stock block, i would go 400 block, 512 cubes, same top end, and high compression and run e85 to meet the goal easily. Use more rpm, but still be carefull on cam choice. You want something that will live a long time.
Last edited by gregsdart; 04/07/18 04:06 PM.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: Low 10 second B body engine/trans big block combos.
[Re: gregsdart]
#2478904
04/07/18 04:18 PM
04/07/18 04:18 PM
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Joined: Oct 2015
Posts: 570
UK
rb446
mopar
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mopar
Joined: Oct 2015
Posts: 570
UK
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Cubic inches are your friend. The more you have, the less you have to push the valvetrain and rpm. If you can find a good 540 or 572 race motor and put a set of dished pistons in it and a mild roller cam, provided you have the budget, you could run a lot less rear gear and still meet your goal. That is what i am considering doing with my 528 when the day comes to retire from the track.
I would go 11.00 compression, 572 cubes, minimum head would be a 440-1 ported, dominater carb on a single plane intake, 2 1/8 headers, converter, tires and gears dependant on wheel well space. Biggest bias type slick you can run, gear it for 6500 rpm at 135 mph. Torqueflite with about 5,000 stall. This will allow pumpgas, and live a long happy life.
If budget dictates a stock block, i would go 400 block, 512 cubes, same top end, and high compression and run e85 to meet the goal easily. Use more rpm, but still be carefull on cam choice. You want something that will live a long time. That is what "Tig" who posts on here ran at SPR I believe a few yrs ago, don't know all the exact spec but car weighs near 4000lbs, 11:1, indy intake, single Dom, .720 roller?, nothing too wild, -1's, 10.5x29.5" tyre with 4.10 gear, don't know about the stall, he ran 9.6's with a best of high 9.5's I think, that motor was making some power 870+ to run 140mph
Last edited by rb446; 04/07/18 04:31 PM.
1969 'Cuda 446ci, best 9.96@133.9 in 1990
1971 340 'Cuda, best 11.01@122.8 in 1987
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Re: Low 10 second B body engine/trans big block combos.
[Re: merpar]
#2478915
04/07/18 04:58 PM
04/07/18 04:58 PM
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Joined: Apr 2005
Posts: 1,505
TN
SCATPACK 1
pro stock
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pro stock
Joined: Apr 2005
Posts: 1,505
TN
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Lose about 1200 lbs, then run a 451 that makes 600hp. About the cheapest route. Realistically, in a 68 Charger, he is not going to lose 1200 pounds. He may be able to get it down to 3400 pounds if he is really conservative, removes heater core, all AC components, back seat, exhaust system. I ran a 68 Coronet w a Hemi and that is what we had to do to get it down to the minimum weight in SS years ago. SO figure a car weighing 3400 pounds whim int. How much power does he need to make to get the times he wants? Build a solid lower end and add a power booster, either turbo's or spray it with a 200 shot.
Old Geezer Racing
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Re: Low 10 second B body engine/trans big block combos.
[Re: BigHemiVegas]
#2478929
04/07/18 05:22 PM
04/07/18 05:22 PM
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Joined: Oct 2007
Posts: 4,206
New York
polyspheric
master
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master
Joined: Oct 2007
Posts: 4,206
New York
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Turbo is the cheapest route.
Boffin Emeritus
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Re: Low 10 second B body engine/trans big block combos.
[Re: BigHemiVegas]
#2478956
04/07/18 06:15 PM
04/07/18 06:15 PM
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Joined: Oct 2011
Posts: 326
Alberta
Wookie316
enthusiast
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enthusiast
Joined: Oct 2011
Posts: 326
Alberta
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It’s a stock block with billet mains and lifter bushings.
If I had a do over I would for sure find an aftermarket block for this type of power.
1971 Plum Crazy Super Bee. 572 World Aluminum block with a Cope 727 & Dana 4.10 out back. 9.88 @ 138 with a 1.35 60 NA. Dialed back to 10.0’s. 4000 lbs with me in it.
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Re: Low 10 second B body engine/trans big block combos.
[Re: B3422W5]
#2479009
04/07/18 08:35 PM
04/07/18 08:35 PM
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Joined: Aug 2003
Posts: 43,157
Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,157
Bend,OR USA
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I went 9.80’s at 135 ish with 650 horse at 3350
Adding 350 pounds on to run the same MPH is about 70 horse.
True 725 horse motor should get a 3700 pound car in the 9’s with no sweat. Should run 10 flat in the summer time My old pump gas Duster weighed 3450 Lbs. with me in it, that motor made 727 HP in Klamath Falls,OR at 4300 Ft. elevation, it would run low tens in Vegas in the spring, best ever was 9.993 at 134.7 MPH at Woodburn ,OR(track elevation is 180 Ft. above sea level) in the late summer  That was using 91 octane Oregon pump swill with the air cleaner and full length three inch exhaust on using a set of M/T 10.5x33x15w four year old drag slicks, it ran a bunch of 10.000 ET with the old type 315x60x15 M/T ET street radials on it No trick parts in that motor, trans or drivetrain other than a coil over ladder bar rear suspension  My main message is that the whole car needs to have decent parts in it from the front to the back to go fast all the time 
Last edited by Cab_Burge; 04/07/18 08:37 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Low 10 second B body engine/trans big block combos.
[Re: BigHemiVegas]
#2479320
04/08/18 11:57 AM
04/08/18 11:57 AM
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Joined: Jan 2005
Posts: 3,635
Oakland, MI
dizuster
master
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master
Joined: Jan 2005
Posts: 3,635
Oakland, MI
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Cast crank, stock rod 360, set of forged pistons, $125 regrind on the factory hydraulic roller, $700 turbo fed from stock exhaust manifolds. 10.08@136mph at 3700lbs with a 3.23 gear on street tires.
Most unconventional and cheapest way to do it for sure. How much boost are you running? What size turbo? What pistons and what is your compression? What brand cylinder head? The cam duration and lift would be great to know as well. I wouldnt be going small block but it would be interesting to find out. I've run it as high as 23psi. That's about all the fuel system is good for... the turbo has more left, but the single needle carb and A1000 fuel pump are about at their limits. Custom Diamond pistons at 9.2:1 compression ratio. Ported Edelbrock RPM heads. Cam is 232@.050" with around .540" lift. Its a pretty basic low RPM combo. The boost does all the work... Shift light is set to 6,000rpm.
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Re: Low 10 second B body engine/trans big block combos.
[Re: Hemi_Joel]
#2479322
04/08/18 12:00 PM
04/08/18 12:00 PM
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Joined: Jan 2005
Posts: 3,635
Oakland, MI
dizuster
master
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master
Joined: Jan 2005
Posts: 3,635
Oakland, MI
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Cast crank, stock rod 360, set of forged pistons, $125 regrind on the factory hydraulic roller, $700 turbo fed from stock exhaust manifolds. 10.08@136mph at 3700lbs with a 3.23 gear on street tires.
Most unconventional and cheapest way to do it for sure. With all due respect, that's a lot to ask of those stock parts. I hope you splurged on the safety stuff. It's all relative... if you keep the timing safe then it doesn't have a ton of cylinder pressure. Keeps out of detonation, and the motor doesn't turn much RPM. I do run a diaper on it, but it's been together for 5 years now and gets beat on fairly regularly. Even last year when I was going through school (masters) in the summer, my best friend ran the car around all summer. He was driving to work 25 miles each way at least once a week.
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Re: Low 10 second B body engine/trans big block combos.
[Re: Dragula]
#2479380
04/08/18 01:17 PM
04/08/18 01:17 PM
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Joined: Jan 2005
Posts: 3,635
Oakland, MI
dizuster
master
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master
Joined: Jan 2005
Posts: 3,635
Oakland, MI
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Cast crank, stock rod 360, set of forged pistons, $125 regrind on the factory hydraulic roller, $700 turbo fed from stock exhaust manifolds. 10.08@136mph at 3700lbs with a 3.23 gear on street tires.
Most unconventional and cheapest way to do it for sure. It took you a while to get there....Your kinda minimizing all the hard work, time, and learning you did in the process. Still an awesome build. Always wondered why you never ran Drag week with it. Honestly I ran it for the first time in September of 2012 and it went 10.99 the first night out. By May of 2013 in it was in the 10.60's, and by September of 2013 it was in the 10.0's So not too bad. I would say I fought traction worse then power. When it started it only had stock springs, 2.76 gear rancho shocks, and 255/60 drag radials. When it went 10.08@136mph, that was with a 224@.050" cam, home ported iron heads, 3.23 gear. Honestly its so easy to make power with the turbo stuff, it's really just having a good chassis to put it down as much as anything. But once you get it figured out, it's great because you can dial the power back on the launch with ease.
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Re: Low 10 second B body engine/trans big block combos.
[Re: gregsdart]
#2479401
04/08/18 01:51 PM
04/08/18 01:51 PM
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Joined: Feb 2006
Posts: 698
Alberta Canada
Edge
mopar
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mopar
Joined: Feb 2006
Posts: 698
Alberta Canada
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Cubic inches are your friend. The more you have, the less you have to push the valvetrain and rpm. If you can find a good 540 or 572 race motor and put a set of dished pistons in it and a mild roller cam, provided you have the budget, you could run a lot less rear gear and still meet your goal. That is what i am considering doing with my 528 when the day comes to retire from the track.
I would go 11.00 compression, 572 cubes, minimum head would be a 440-1 ported, dominater carb on a single plane intake, 2 1/8 headers, converter, tires and gears dependant on wheel well space. Biggest bias type slick you can run, gear it for 6500 rpm at 135 mph. Torqueflite with about 5,000 stall. This will allow pumpgas, and live a long happy life.
If budget dictates a stock block, i would go 400 block, 512 cubes, same top end, and high compression and run e85 to meet the goal easily. Use more rpm, but still be carefull on cam choice. You want something that will live a long time. I agree with this approach (572) it will take plenty of torque and hp to move a 68 in Vegas air ! High density altitude is brings alot of frowns to racers faces ! It took close to 700 hp to run 9.80 in my Duster (3000 lbs) in 4800 ft air in a reasonably well sorted out combination. I also like the idea of Gen 3 hemi with a supercharger as well. I have a 68 Dodge Charger that will have similar goals to yours in the future...just got to finish the Duster first.
Last edited by Edge; 04/08/18 01:52 PM.
76 Duster
work in progress
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Re: Low 10 second B body engine/trans big block combos.
[Re: BigHemiVegas]
#2479443
04/08/18 02:51 PM
04/08/18 02:51 PM
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Joined: Oct 2007
Posts: 4,206
New York
polyspheric
master
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master
Joined: Oct 2007
Posts: 4,206
New York
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The boost does all the work
This^^^
If the turbo is selected well (like, ask the manufacturer?), the rest doesn't matter nearly as much as NA.
If it's not (2 common mistakes: way too big (88mm on a 318), 2.0 A/R (no boost below 6,000) the rest is a waste of time.
The difference between a tuned header fabricated to fit and a pair of iron logs may be 50 hp on a 7-800 hp engine, and $2,000. A bad cam choice (typically too narrow LSA) is worse than the stock cam.
But you don't get to say "It's 800 cubes".
Boffin Emeritus
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Re: Low 10 second B body engine/trans big block combos.
[Re: Cab_Burge]
#2480520
04/10/18 03:07 PM
04/10/18 03:07 PM
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Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
BradH
Taking time off to work on my car
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Taking time off to work on my car
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
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What range of DA readings does Vegas see? 3300 Ft in the winter and 7700+ in the summers at night  Ugh... Some of my local Mid-Atlantic tracks are comparable to Woodburn, so I'm sure there can be a pretty big loss of performance going between those two tracks.
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Re: Low 10 second B body engine/trans big block combos.
[Re: BradH]
#2480639
04/10/18 06:36 PM
04/10/18 06:36 PM
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Joined: Aug 2003
Posts: 43,157
Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,157
Bend,OR USA
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What range of DA readings does Vegas see? 3300 Ft in the winter and 7700+ in the summers at night Ugh... Some of my local Mid-Atlantic tracks are comparable to Woodburn, so I'm sure there can be a pretty big loss of performance going between those two tracks. My pump gas Duster with no changes from Woodburn to Las Vegas lost two to three tenths ET and 2 to 3 MPH in the spring, my old race Duster would change .4 ET and between 3 and 4 MPH from winter to summer up there with no tuning BTW, in late July and August it gets worst when the thunder storms are brewing 
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Low 10 second B body engine/trans big block combos.
[Re: 66coronet]
#2480845
04/11/18 12:12 AM
04/11/18 12:12 AM
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Joined: Sep 2015
Posts: 1,096
Australia
ozymaxwedge
super stock
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super stock
Joined: Sep 2015
Posts: 1,096
Australia
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What cubic inch RB, Hemi or Low Deck? 499 RB
What brand block and what was prepped? Was block filled? factory RB block
What cylinder heads,who ported them to what CFM and CC chamber volume? Indy SR. MW ports. cut to 68 cc
Rocker arms,ratio and springs? Indy 1.5 . flat tappet cam 608/615 280/284 ( i think. i dont have the cam card in front of me )
Intake,carb,spacer? Modman with 2 edelbrock 750s
What headers? TTI step
Compression ratio using what pistons? 13 to 1 wiseco flat top
What stroke of crank and rods and brand? 4.15 eagle
Oiling system? Fuel system? external with milodon pump. fuel is all aeromotive
Transmission are you running? 727 with good drum and all good parts. ATI 8 inch 5000
What rear gear? Type of differential and axles? Moser 60 with 4.10 gear
What is your ET and MPH went 9.863 @134.07 this weekend at 3600lbs
match the parts. match the combo Good to know. Im aiming at 9.80's, my 3750#, 528, 95% street car has been 10.1 @ 134 but I want those 9's bad. Been told I have around 20% convertor slip so getting that sortedand rebuilt to 5000 plus some new shocks.
1963 Plymouth Max Wedge
1971 Barracuda
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Re: Low 10 second B body engine/trans big block combos.
[Re: BigHemiVegas]
#2481027
04/11/18 12:23 PM
04/11/18 12:23 PM
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Joined: Jan 2003
Posts: 14,496
So. Burlington, Vt.
fast68plymouth
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 14,496
So. Burlington, Vt.
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If its in the budget, I'd be in the 572 cube camp...... with some mildly reworked 440-1's and an easy-on-parts type roller cam...... 4500 carb, 4800 converter.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
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Re: Low 10 second B body engine/trans big block combos.
[Re: BigHemiVegas]
#2481170
04/11/18 04:48 PM
04/11/18 04:48 PM
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Joined: Oct 2011
Posts: 326
Alberta
Wookie316
enthusiast
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enthusiast
Joined: Oct 2011
Posts: 326
Alberta
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^^^^^^Agree^^^^^^
If I’d have just put the $ I’ve already spent into an aftermarket block, I’d be in far better shape then I am now.
1971 Plum Crazy Super Bee. 572 World Aluminum block with a Cope 727 & Dana 4.10 out back. 9.88 @ 138 with a 1.35 60 NA. Dialed back to 10.0’s. 4000 lbs with me in it.
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Good plan on the diaper. Impressive combination!