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David, Steve, what I am learning is that since I don't have a 1:1 5th gear and since I don't have a hp/wt ratio that allows me to "cover" under prepping the car, I too am going to have to run at least two rear end gears. Complicating the matter is the fact that my car doesn't, won't and can't rev much past 5500 rpm. So, I'm long at a TALLLLL ratio for Lowe's and VIR (3.08) and a shorter one for Roebling and CMP (3.45). A 3.9 would be better for CMP but then I'd need three rear ends ..... plus Quaife (only solution for my car other than welding) means about $1500 to $1800 per rear end.
Sheesh! And these guys are complaining about dyno time to tune their SIR! DJ, Marshall, come join the fun!
David, do you mix and match welded vs. Quaife LSDs on the car? Do you have to change the spring rates all around when you do?
DJ, I'll send you the ITR spreadsheet if you send me your e-mail (or did you already?). If you did, my apologies. You are correct, we won't get the hp/wt on all cars right the first time, which is why the PCA adjustment mechanism in the first year that is now allowed by the ITCS is such a huge deal and a big plus that the ITAC got for us. It allows them to fix any errors we make in eyeballing this class from the start (although it is eyeballing using the IT formula). ITR should be fun -- and my comment above about the E36 can be misinterpreted -- I think at 2750 it should be competitive. Its competition will be, as I said, much faster, but what I meant is much faster than what you are dealing with in ITS right now.
In fact, if this goes through, you are going to go from being one of the heaviest cars with the most power and torque to one of the lighest with less power and torque than most. Should be interesting.
Seriously guys, see you at VIR. Hope we get to actually talk about stuff other than the SIR, and actually have some fun.
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I know you do not run telemetry Jeff, but you have to gear to be fast where it matters most. Drop by at VIR and we can look at the numbers for your car and see what happens. And Quaife is not your only option. :rolleyes: