Twin Screw Supercharger and Gear Ratio - - 5th Generation Camaro Enthusiasts
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post #1 of 2 Old 06-27-2009, 11:48 AM Thread Starter
Join Date: Jun 2009
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Question Twin Screw Supercharger and Gear Ratio

I have a 2SS Manual transmission on order. My intent to use a twin screw supercharger. I have spoken to Kenne Bell, Whipple, and Techo. All make systems for the LS3 Corvette and they confirmed via email and their websites that they are in the process of modifying the kit for the camaro.

I am pretty much sold on the twin screw design for the wide torque band. This vehicle will be a daily driver / project car for me. I believe the LS3 Camaro comes stock with a 3.45 gear ratio. That's pretty tall, when compared to the mustang drag pack that comes with 4.10 gears.

I have been considering either 3.73 or 3.9 for increased quickness off the line. I can't help but feel for the horsepower advantage, the camaro should have a wider margin over the mustang. The questions I have are:

1. I realize highers gear ratios = higher engine rpm.

A)Will higher gears help acceleration or will they just result in traction issues?
B) Are they feasible in conjunction with a supercharger or will the higher rpm limit total boost?
C)Will a gear change force a reflash of the computer, and how does this affect the traction and stability control?

I know kenne bell is adamant about not using other upgrades in conjunction with their systems. I know these are a lot of questions. If a member has done this with previous vehicles I would appreciate your advice. If you guys know where I can read up on this please post a link.

So far most of what I've read are on vendor's websites. Thanks for your time.
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post #2 of 2 Old 06-27-2009, 01:29 PM
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with a SC, (and the fact that it'll be a DD), I'd stick with the stock gears. You'll have plenty of low end power, and traction wont be as much of an issue.

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