 Final Drive Ration, Tire Size |
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| heavydriver |
 Aug 11 2004, 05:40 PM
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#1
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Member  Group: Members Posts: 158 Joined: 7-August 04 From: Orlando, Fl. Member No.: 2,470  |
Have some of you guys out there experimented with taller than standard tire sizes in order to get a lower effective ratio when using a V8 conversion ???
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Replies(1 - 4)
| lapuwali |
Aug 11 2004, 06:05 PM
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#2
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Not another one! Group: Benefactors Posts: 4,526 Joined: 1-March 04 From: San Mateo, CA Member No.: 1,743  |
I doubt you can make enough difference with tires to bother. Tires that will fit the car without radical fender surgury will only change the ratio by 5% or so, and nearly all of them will change it in the wrong direction. The stock sized 165SR15 tires are actually pretty tall (26" in diameter).
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| heavydriver |
Aug 11 2004, 06:16 PM
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#3
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Member Group: Members Posts: 158 Joined: 7-August 04 From: Orlando, Fl. Member No.: 2,470 |
When the GT flares are used will a 29" tall tire fit ??
(255/55-18) |
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| elocke |
Aug 11 2004, 07:46 PM
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#4
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Member Group: Members Posts: 178 Joined: 9-February 03 From: Georgetown, MA Member No.: 272 |
29" dia. tires would yield awesome 0-60 times in a V8 application, using 2nd as 1st, while keeping just under 6k. My tires are like balloons at 195/70-15, 25.75" dia, and hit the front valence edge when I lift the front, but my speedo's pretty accurate, which I like, and the gearing's good for highway cruising.
Ed |
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| heavydriver |
Aug 12 2004, 02:46 PM
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#5
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Member Group: Members Posts: 158 Joined: 7-August 04 From: Orlando, Fl. Member No.: 2,470 |
What about the final drive ratio. Does an 8/31 final drive gear set exist for the 901 tranny ? Or must one upgrade to the 915 tranny to do this ?
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