What gear to run vs. starting line ratio

Chevy55 · 09-20-2019, 12:38 PM

Usually best to leave everything right where it is but if you want to play then maybe a lower rear gear and a higher 1st gear ratio so you end up the same final total 1st gear ratio that you have now without upsetting the launch.

Doesn't seem worth it to me. JMO

Dan Fahey · 09-20-2019, 04:03 PM

Fix the suspension and safety of the car.
Tune the engine and suspension
For gearing
If you are Bracket Racing you have enough.

HawkBrosMav · 09-20-2019, 05:36 PM

I not completely familiar with SLR but if it's rear ratio times first gear ratio 10 seems a little low for most Stk S/S cobinations...

obviously with a longer stroke that would change things, but we have a 3 inch stroke... 2.92 1st gear ratio and 4.88 rear ratio on a 28 or 30 by 9" wide tire.. have zero issues hooking..

2.92*4.88=14.25 SLR I'm sure yours can be a little lower as I'm sure your stroke is bigger... but i wouldn't worry about it too much and I'd guess if you can make the higher SLR hook your 1/8th ET will be quicker..

09-20-2019, 12:38 PM	#1
Chevy55 Banned Join Date: Nov 2014 Posts: 324 Likes: 625 Liked 179 Times in 89 Posts	Re: What gear to run vs. starting line ratio Usually best to leave everything right where it is but if you want to play then maybe a lower rear gear and a higher 1st gear ratio so you end up the same final total 1st gear ratio that you have now without upsetting the launch. Doesn't seem worth it to me. JMO

09-20-2019, 04:03 PM	#2
Dan Fahey VIP Member Join Date: Oct 2008 Posts: 2,128 Likes: 1,084 Liked 184 Times in 113 Posts	Re: What gear to run vs. starting line ratio Fix the suspension and safety of the car. Tune the engine and suspension For gearing If you are Bracket Racing you have enough.

09-20-2019, 05:36 PM	#3
HawkBrosMav Member Join Date: Apr 2009 Posts: 362 Likes: 6 Liked 302 Times in 73 Posts	Re: What gear to run vs. starting line ratio I not completely familiar with SLR but if it's rear ratio times first gear ratio 10 seems a little low for most Stk S/S cobinations... obviously with a longer stroke that would change things, but we have a 3 inch stroke... 2.92 1st gear ratio and 4.88 rear ratio on a 28 or 30 by 9" wide tire.. have zero issues hooking.. 2.92*4.88=14.25 SLR I'm sure yours can be a little lower as I'm sure your stroke is bigger... but i wouldn't worry about it too much and I'd guess if you can make the higher SLR hook your 1/8th ET will be quicker..