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7.50's in the 1/8 with a 360
#192846
01/13/09 09:50 PM
01/13/09 09:50 PM
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Joined: Jan 2003
Posts: 2,511
Tampa , Fl
MoparJoe
OP
super gas
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OP
super gas
Joined: Jan 2003
Posts: 2,511
Tampa , Fl
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I would like to get some input to see how far off this combo is. I want to run in the 7.50 class at my track, it's the slowest class I can get into where I don't have to wait in line for 2hrs with Rangers and civics to make a run.
The car is a 68 Dart, weight is around 3225# with me in it, it has 340 T bars and BBP discs up front,I'm planning on Cal Tracks & mono's out back with 235/60/15 M/T radials.
The motor I'm planning right now is a 360 with 308 heads, stock crank & rods KB 191 hypers with 11.2cc domes, Comp XE295 hyd 251/257@.050 .564/.564, crane 1.5 gold rockers, 308 heads cut for 2.02/1.60's bowls cleaned up and lightly ported, victor 340 manifold & 750 holley DP, 1 5/8" street headers & full 2 1/2" exhaust.
For a Trans I have a 904 & 998, I'll rebuild which one would work best for me and use a MVB and either a 9 1/2" or tight 8" converter. One thing I think will hurt it is that I want to run 3.55's, I live 60 miles from the track and had 3.91s with the same size tire in my last car and it was a bit much.
Thanks for any input - Joe
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Post deleted by Defbob
[Re: MoparJoe]
#192847
01/13/09 10:02 PM
01/13/09 10:02 PM
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Anonymous
Unregistered
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Anonymous
Unregistered
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Re: 7.50's in the 1/8 with a 360
[Re: tjmarcus1]
#192850
01/13/09 10:26 PM
01/13/09 10:26 PM
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Joined: Jan 2003
Posts: 2,511
Tampa , Fl
MoparJoe
OP
super gas
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OP
super gas
Joined: Jan 2003
Posts: 2,511
Tampa , Fl
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If I have to run more gear I will, I'm just shooting to make enough torque in the 4-6,500 range to overcome the lack of gear.
My last car was a Duster that weighed 3300# with me in it and was running 8.60's@82 with a 318, KB 167s, XE 268 cam, stock 360 heads, M1, 600 holley, 998 with 175k converter, 3.91's & 26's, I'm trying to pick up 1.1 sec and 10mph over that combo.
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Re: 7.50's in the 1/8 with a 360
[Re: goldmember]
#192852
01/13/09 11:51 PM
01/13/09 11:51 PM
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Joined: Jan 2003
Posts: 6,266
Renton Washington
Triple Threat
master
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master
Joined: Jan 2003
Posts: 6,266
Renton Washington
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My combo is
346 cid
9.5:1
230/230 480/480 hydraulic
box stock Eddies
stock rockers
Air gap
750 holley
1 5/8-1 3/4 TTI's
904
9.5" PTC 4600 flash
3.91's
235/60/15 ET street radial
My car has been 7.82 in the 1/8th
I have more head, gear and converter than you, but my car is overweight. You have more cam, more cubes and probably some other things I am too lazy to look back at. If you want to run a 7.50 index class the car needs to go 40's in the heat.
-Dustin
67 Dart, 9 second, 392" G3 Hemi
68 Barracuda 340 F/SA
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Re: 7.50's in the 1/8 with a 360
[Re: Triple Threat]
#192853
01/14/09 12:47 AM
01/14/09 12:47 AM
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Joined: Jan 2003
Posts: 9,826
las vegas
70AARcuda
master
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master
Joined: Jan 2003
Posts: 9,826
las vegas
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you might wanted run the low gear set with either trans...
2.74 and 1.54...and keep your 3.55
Tony
70 AARCuda Vitamin C
71 Dart Swinger 360 10.318 @ 128.22(10-04-14 Bakersfield)
71 Demon 360 10.666 @122.41 (01-29-17 @ Las Vegas)
71 Duster 408 (10.29 @ 127.86 3/16/19 Las Vegas)
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Re: 7.50's in the 1/8 with a 360
[Re: 67valiant]
#192855
01/14/09 12:38 PM
01/14/09 12:38 PM
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Joined: Aug 2005
Posts: 637
Sao Paulo, Brazil
dart_73_br
mopar
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mopar
Joined: Aug 2005
Posts: 637
Sao Paulo, Brazil
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I´m finishing my setup...
318, xe284h, 11.5 CR on ethanol, fuel injected, 2.02 1.60 ported heads, roller rockers, forged pistons and rods, 3300lbs Dart, 3.73 gears, ladder bars, ceramic clutch, 11.5x26 street tires.
What could be improved in this combo? Gears?
How much should I expect on 1/8 time ?
1973 Brasilian Dart
E100, boosted 390"
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Re: 7.50's in the 1/8 with a 360
[Re: dizuster]
#192858
01/15/09 11:14 AM
01/15/09 11:14 AM
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Joined: Mar 2003
Posts: 15,493
the boonies
aarcuda
I Live Here
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I Live Here
Joined: Mar 2003
Posts: 15,493
the boonies
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Quote:
I'd be very very impressed if you could get that combo to go 7.50's on a 355 gear.
I used to have a duster
346"
Fully ported 2.02 smog heads (flow 245~250cfm)
Solid roller 248/252@.050 .604/.613"
12.2:1 compression
1 3/4" headers
Ported Mopar M1 intake with worked 750DP
4500 9 1/2" converter
904 with low gear set
4.56 with 28 x 10.5 slicks
3300~3350lbs with driver.
The best that car ever went was 7.70's in the 1/8 and 11.85@ 116mph in the 1/4
Granted it was a 340 not a 360, but I had a lot more cam and gear to make that up with.
I agree a 4" crank would be your best bet to try and get there...
I agree.
My 416 has 9.7:1, with ported TA heads and six pack manifold, headers, cheetah VB, 3200 stall, 4.30s and stock weight and the best I could pull off was 8.01 in the 1/8th.
But I just started playing with it. it might have more but that we'll find out in the spring
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Re: 7.50's in the 1/8 with a 360
[Re: moparmanjames]
#192860
01/15/09 01:12 PM
01/15/09 01:12 PM
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Joined: Mar 2003
Posts: 15,493
the boonies
aarcuda
I Live Here
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I Live Here
Joined: Mar 2003
Posts: 15,493
the boonies
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Quote:
Throw some W2s or Indy's on it and you might be able to do it.
the indys are on my list but at $3500 a set (for the offest TA style), they are on the waiting listing
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Re: 7.50's in the 1/8 with a 360
[Re: moparmanjames]
#192861
01/15/09 02:22 PM
01/15/09 02:22 PM
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Joined: May 2004
Posts: 12,493
Taxes & Virus's R-US, NY
Dragula
I Live Here
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I Live Here
Joined: May 2004
Posts: 12,493
Taxes & Virus's R-US, NY
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I ran 7.50's (1.60 60ft) in the 1/8th with a 9:1 340 and about the same combo except my heads were untouched. '72 Cuda 340 +0.030" with Mopar purple 484 cam TM5 Intake with 2" spacer 850DP carb deleted choke horn 1-5/8 Headers, open 904 low gear setted trans ( A must have) 8" super tight 4700 stall convertor 4.30:1 rear gears with standard posi 28x10 slicks SS leaf springs (Would highly recomend caltracs & monos) Things I would change on that combo: -Caltracs & Monos -QF 850 Annular DP carb -Ported Air Gap as I run now with 1" open spacer -4.10 gear & spool -Eddy heads & stainless 1.6 rockers Vid.....(the bug had a SBC with a super charger in it & my car mufflers on it) http://s427.photobucket.com/albums/pp357/cudahalr/72Cuda340/?action=view¤t=72Cuda_1997.flv
Last edited by Dragula; 01/15/09 02:28 PM.
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Re: 7.50's in the 1/8 with a 360
[Re: aarcuda]
#192862
01/15/09 02:27 PM
01/15/09 02:27 PM
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Joined: Feb 2005
Posts: 2,528
Mansfield, Tx
Jacob Pitt
master
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master
Joined: Feb 2005
Posts: 2,528
Mansfield, Tx
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Man I don't know what I did right.
I built a .020 over 360 that runs on 93 octane pump gas in a full interior all steel Duster that my Mom races with me and it has run a 7.44 @ 91mph. It usually runs high 7.40's to low 7.50's. It's pretty simple combo.
Ported J heads, Airgap, 10.4to1, 4.30's, 904 low gear set, ATI 3000 stall, TTi headers, Lunati Voodoo flat tappet hydraulic, H/S 1.5's, 750 Holley, no belt driven accesseries. The secret is getting it to 60' and the rest is gravy. Good luck with your goals.
2013 NHRA D4 Stock Champ
#4 in the World IHRA Stock
2x IHRA Div.4 Stock Champ
14x Track Champ
All using a Ultimate Converter Concepts converter. Call Lenny today 704-892-6837
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Re: 7.50's in the 1/8 with a 360
[Re: Dragula]
#192863
01/15/09 03:06 PM
01/15/09 03:06 PM
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Joined: Jan 2003
Posts: 32,394
Quicktree
I Win
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I Win
Joined: Jan 2003
Posts: 32,394
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Quote:
I ran 7.50's (1.60 60ft) in the 1/8th with a 9:1 340 and about the same combo except my heads were untouched.
'72 Cuda
340 +0.030" with Mopar purple 484 cam
TM5 Intake with 2" spacer
850DP carb deleted choke horn
1-5/8 Headers, open
904 low gear setted trans ( A must have)
8" super tight 4700 stall convertor
4.30:1 rear gears with standard posi
28x10 slicks
SS leaf springs (Would highly recomend caltracs & monos)
Things I would change on that combo:
-Caltracs & Monos
-QF 850 Annular DP carb
-Ported Air Gap as I run now with 1" open spacer
-4.10 gear & spool
-Eddy heads & stainless 1.6 rockers
Vid.....(the bug had a SBC with a super charger in it & my car mufflers on it)
http://s427.photobucket.com/albums/pp357/cudahalr/72Cuda340/?action=view¤t=72Cuda_1997.flv
 we did the same with a very mild 340. with a good converter a 360 should be a breeze.
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Re: 7.50's in the 1/8 with a 360
[Re: Quicktree]
#192864
01/15/09 03:39 PM
01/15/09 03:39 PM
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Joined: Jan 2003
Posts: 6,266
Renton Washington
Triple Threat
master
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master
Joined: Jan 2003
Posts: 6,266
Renton Washington
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Seems like all the stock stroke small blocks that run well have low gear set 904's. Interesting.
-Dustin
67 Dart, 9 second, 392" G3 Hemi
68 Barracuda 340 F/SA
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} his car will run 7.40's with a 125 shot. high 8's on motor. you might want to use a 440 if you are determined to keep the 3.55.
