Gear ratios

[sambo]

Hi vatdevil. It's a Holden spec (Australian) 6.0L L98 which is very similar to the LS2. Intended usage is 95% street duties with 2-3 circuit track outings per year. Maybe in a heavier car the shorter final drive would work, but it would be ridiculous in the little Cobra. I'd go a taller final ratio if they were easy to come by or an easy swap - mine uses the helical LSD from the Nissan R34 Skyline / 200SX.

[stiffy]

Sambo,

As you know my set up is similar to yours, having a cam/tune does

Nothing to alleviate the busyness of the final drive.

I changed my diff from 3.9 to 3.5 as I thought the 3.9 was too busy,

I should have left it alone ( people have been telling that for ever ) the 6

Speed is useless on the highway and the 3.9 would have been better on the

track.

The actual redline is closer to 7000rpm so take that into consideration also.


Stiffy