[Gatorsurgeon]

You can see what I currently have in my sig. Now thinking hard about going to a Turbo setup. I've enjoyed the 3.91 gears with the current car but I'd think that such short gears would be nuts with the kind of horsepower I'd have with a turbo. The engine has held up great (105,000 miles total; 55,000 miles SC'ed, driven VERY hard on a number of track days), but I want new internals when I go turbo.

What should I do about the transmission and the diff?

 

[Gatorsurgeon]

Thanks for the reply. How do the differentials listed on your site (the OS Giken and the Carbonetic carbon) compare to the original OEM differential?

 

[Gatorsurgeon]

4.10's are gonna feel tiny with f/i. My SC is just 5.5psi; I dyno'ed 393 rwHP, and my 3.91 gears are as short as I'd want with this.

BTW, Marcus, I love your car. LSB brake calipers are the bomb, are they not?