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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
member
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OP
member
Joined: Aug 2017
Posts: 50
Where else?
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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: 4,205
New York
polyspheric
master
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master
Joined: Oct 2007
Posts: 4,205
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: 4,663
Wichita
GY3
master
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master
Joined: Dec 2013
Posts: 4,663
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: 13,185
aZLiViN
J_BODY
I Live Here
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I Live Here
Joined: May 2003
Posts: 13,185
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: 11,705
Portage,michigan
B3422W5
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 11,705
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
OP
member
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OP
member
Joined: Aug 2017
Posts: 50
Where else?
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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
Posts: 50
Where else?
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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: 7,477
Minnesota
Hemi_Joel
master
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master
Joined: Jan 2003
Posts: 7,477
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: 12,383
Taxes & Virus's R-US, NY
Dragula
I Live Here
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I Live Here
Joined: May 2004
Posts: 12,383
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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