Re: 1/4 mile.. what gears do I need to run?
[Re: hemi4speed]
#1310345
09/25/12 11:55 AM
09/25/12 11:55 AM
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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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How fast is the car?
With 3.91's, a 27" tall tire and 6% converter slip. 5825 RPM = 112.88 MPH
Should be good enough for high 11's, if the car is faster than that not a big deal, most cars go across the finish line well above peak HP.
-Dustin 67 Dart, 9 second, 392" G3 Hemi 68 Barracuda 340 F/SA
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Re: 1/4 mile.. what gears do I need to run?
[Re: hemi4speed]
#1310347
09/25/12 12:24 PM
09/25/12 12:24 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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Should run around 11.75 given the 1/8th mile numbers. Probably will cross just barely above your peak. Good looking car!
-Dustin 67 Dart, 9 second, 392" G3 Hemi 68 Barracuda 340 F/SA
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Re: 1/4 mile.. what gears do I need to run?
[Re: hemi4speed]
#1310348
09/25/12 12:33 PM
09/25/12 12:33 PM
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Joined: Jan 2003
Posts: 75,020 U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,020
U.S.S.A.
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Quote:
this is the car back in the day.
Too bad you didn't put it back like that ...
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Re: 1/4 mile.. what gears do I need to run?
[Re: hemi4speed]
#1310352
09/25/12 05:39 PM
09/25/12 05:39 PM
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Joined: Apr 2009
Posts: 3,415 Toronto
mshred
master
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master
Joined: Apr 2009
Posts: 3,415
Toronto
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with 4.10's and a 28" tall tire with the 4 speed, my 365 trapped around 5700rpms, so im thinking you might be close to that as well since your tire is an inch smaller and you have 3.91's. Also, not sure what tire you are running or how you are going to launch, but you should definitely be doing atleast 11.70's imo...My 3400lb pig ran 11.80's at 116 with horrible 60' foot times- could have had an 11.70 outta it with better hook, but it broke...oh,and my motor was making at most I think 450 at the crank good luck man!
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Re: 1/4 mile.. what gears do I need to run?
[Re: gch]
#1310355
09/26/12 08:39 AM
09/26/12 08:39 AM
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Joined: Jan 2003
Posts: 1,240 Fairfield Maine
hemi4speed
OP
pro stock
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OP
pro stock
Joined: Jan 2003
Posts: 1,240
Fairfield Maine
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Quote:
I would want a softer sidewall with a stick car to absorb the shock and allow it to hook. If you get too aggressive with the BFG they will likely go up in smoke. Get them hot nut no need for John Force burnouts with them.Start out easy and bring the rpm launch up 300-500rpm at a time until you get your best 60 ft. Be prepared to not run the number as 4 speed et's will humble most people w/o a lot of practice.Car should be capable of high 10's/low 11's if it hooks and doesent break.Don't expect it right away though.
Lots of good info thanks alot.. My best 60ft on the BFG was 1.59 and my launch was around 3500. But been having difficulty being consistant and its all been about getting out of the hole. But its way to much fun to change it over to auto.
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