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02-15-2017, 07:25 PM | #1 |
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Powerglide first gear
So I am thinking of getting a powerglide for my car, it weighs 3024 with me, I run super street, only have about 500 hp in a small block. what first gear would be best?, it has 4:56 rear gears
Thanks in advance Marty
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Marty H |
02-15-2017, 09:27 PM | #2 |
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Re: Powerglide first gear
198 ATI super set
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02-16-2017, 02:17 PM | #3 |
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Re: Powerglide first gear
What transmission are you currently running? What ET and MPH?
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02-16-2017, 02:49 PM | #4 |
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Re: Powerglide first gear
I'd agree with the 1.98's but you need to know your torque readings or have a good idea that you can stand that kind of drop when you go into 2nd. Be prepared for the car to slow down if you had a good 3 speed before.
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Jim Carter 2340 Super Stock 2340 SST/2340 Stock |
02-16-2017, 05:30 PM | #5 | |
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Re: Powerglide first gear
Quote:
With a 1.98 first gear and 4.56 in the back, it will work the same on the starting line as it would with a standard 1.76 first gear and 5.13 in the rear. The 1.76 combination would recover better on the shift also. I doubt a 500 hp motor will like a lot of RPM, but there are a lot of variables.
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02-16-2017, 08:57 PM | #6 |
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Re: Powerglide first gear
Right now a c4- only have 1/8 mile data right now last weekend flat out was 6:58 @ 103 mph. Going to test 1/4 mile this weekend.
Thanks for the info
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Marty H Last edited by Marty Hignight; 02-16-2017 at 08:59 PM. Reason: Add note |
02-18-2017, 07:41 AM | #7 |
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Re: Powerglide first gear
Your going to slow down your C-4 is plenty good for your weight and power.
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02-18-2017, 09:30 PM | #8 |
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Re: Powerglide first gear
More gears better in that weight range but probably regardless if set up.
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02-20-2017, 01:34 PM | #9 |
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Re: Powerglide first gear
I'd stay with the C4 with the power level you have , No problem hitting the .500 tree with that combo.
I have several Super Street customers who run 3 speed transmissions because their car is a heavy weight . If it was my car ,I'd keep the C4.
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Tom Goldman 1500 SG , 1506 STK |
02-20-2017, 01:50 PM | #10 |
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Re: Powerglide first gear
My Super Street car weighs 3575# and runs a 1.80 glide with 4.30 rear gears. I have more power but because of the weight I am only a little quicker on ET. Runs right around 10.30 wide open and goes 10.90 at about 127.
With a Pro Tree transbrake I am leaving at 3800 RPM with .050-.060 in the box, so no problem cutting a light.
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