Thread: Gear Vendors Overdrive in my '32 Ford???

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I agree, you'll want to run a shorter gear than the 3.50, especially with those big meats...

making a few assumptions (car wt ~3000lbs, 460 real HP to rear wheels) and also assuming the coupe is built for 1/4mi bracket racing + cruising, the car should run somewhere around 11.0@125mph in a 1/4mi.

If these assumptions are close, a 4.33:1 gear will put you through the traps at 5900rpm at 125mph in 3rd gear (4.10 gear at same rpm 133mph). With that same 4.33 gear you will cruise at 75mph at a comfortable 2700rpm in 3rd+overdrive

If actual hp to the pavement is less, you'll want an even shorter gear (and/or shorter tire)... 4.56 probably about right, 4.88 probably overkill....

two cents,

Chris

Be careful that it fits your trans cross member and clears the x or k braces just behind it. Length should be OK. Yeah you should be thorough in considering the right gearing etc, but for the ~$2800 or so cost I bet Gear Vendors will help you make sure you got it right.

I want one too. Buddy of mine has one in his Z28. If you ever have it on in reverse I'm told it destroys itself instantly.

kitz

I run 3.89 gears in my '32 along with a 383 and a 700R4 tranny. I run BFG P285-70R X15 inch rear tires (30 inch diameter) and I am very satisfied with how it runs both in town (in drive) and out on the interstate (in overdrive).

.....Thanks all for the replys ... well, yes I can afford it{that's as long as I don't mind waiting another 2 months to take delivery of it! }. But I think I'm going to go for it .... But your all right about needing to go lower on my gear selection, so I will.... It put out 460 HP, but that is flywheel not rear wheel.... So something around 3:89 to 4:11 sounds good.... Thanks again everyone, I'd be lost without this site! Bill