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Old 05-22-2014   #34
Pete
 
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Join Date: Dec 2003
Location: Chicagoland,IL
Posts: 2,667
Default Re: 4.10 gears...not what I expected.

Quote:
Originally Posted by LGAFF View Post
http://www.carcraft.com/techarticles...s/viewall.html






Geared Up For Speed
Hot Rod did a test of gear ratios and converter sizes (smaller equals higher stall speed) versus engine rpm and quarter-mile times for their June '95 issue. We helped with the testing, so we don't feel too bad about ripping them off and reprinting the numbers here. The car used was a small-block Nova with 26-inch-tall tires. We tried four gear ratios with two TCI converters, and here's what we found:

Same Car....
3.50 gear 13.40@102.59
4.11 gear 13.18@102.81

Read more: http://www.carcraft.com/techarticles...#ixzz32C7fPvaZ
A bit difference with our manual 6 speed Z's.

I agree money would've been spend better in other mods.

My Z has run 11.04, 11.09, 11.06 with 3.45 gears I install 4.10's thinking I will get a 10 sec pass well that did not work as I thought I got a killer 60ft time and thought h@ll yeah this is it picked up my timeslip 11.10's well anybody wanna guess why, ok i'll tell you had an extra shift.

4.10's are lame and loose big end that's what our cars were made for,top end.
With 3.45 gears I top out 4th at 155-160mph with 4.10's 135mph
and if anyone has shifted into 5th would also know she falls flat on her face in 5th.

4.10's will get you better 60ft times over the 3.45's but with the extra shift takes it right back.

Reinstalled 3.45 back in her and happy again.
Pete
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'91 #1635 PoloGreen 350 LT5
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11.04 @ 128.86
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