Andy, if you go to 331 gears, you will have wheel hop with higher rpm line
shots when running 13 inch wheels. Assuming the hp is there. My first Tiger
(1972) had 331 gears, 13 inch wheels with 60s and a 289 with a huge can, it
ate my. 2nd Tiger alive (I bought it later from my friend) which had a rebuilt
260, four barell intake and Carb. with 288 gears.I'm now running 288 gears a
five speed and 15 inch wheels. I can go through town in 5th gear at 1000 rpm,
my speedo has never worked since the
Sent from Huawei Mobile
Andy Walker <awtiger@cox.net> wrote:
>Hey, guys:
>
>
>
>I've got a question for some of the more mathematically proficient in the
>group. I'm considering making some changes to my Tiger pertaining to the
>rear end gear ratio. Can anyone tell me how to figure what kind of rpm
>difference there would be at, say 70 mph, between a Tiger equipped with a
>stock 2.88:1 rear end and one equipped with first a 3:07.1 and then a 3:31.1
>rear gear? Surely there's a formula out there that can figure that. Can
>anyone point me in the right direction?
>
>
>
>The bottom line here is that I need something that will get my car off the
>line a bit quicker without completely destroying my highway cruising
>capabilities. I currently am running an Edelbrock F4B and a Holley 465 cfm
>carb, a hydraulic version of the old Ford hi-po cam, and 13" LAT 70s with
>185/70 tires. The car currently has a 2:88.1 rear gear and that makes it a
>bit sluggish off the line. I've heard it said that a 3.07:1 gear was about
>ideal for a stock Tiger, but with the cam and carburation my car has, would
>a 3.31:1 be a better alternative?
>
>
>
>Thanks for any advice,
>
>Andy Walker
>
>Edmond, OK
>
>B382001600LRXFE
>
>TAC #740
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>
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