| Re: Calculating the optimum gear ratio for my car |
Subject: Re: Calculating the optimum gear ratio for my car by rklessdriver on 2011/4/21 14:57:12 with a 4.11 and a 315/35R17 rear tire (25.6") your good to 130ish MPH in 4th gear at 7000RPM. I personally think a 4.11 would be too much gear for a supercharged 383 with a 6spd. My 92's 383 is normally aspriated and the car is hard to hook up on anything but a VERY well prepped track. Just from 3 weeks ago (perfect track) to this week (no track prep) my 60fts went from 1.77 to 2.04 using the same tires, tire pressure ect... the car lost over 4 tenths ET but ran the same mph so it wasn't a hp difference because of the warmer weather. With all the TQ that blower is going to make, I'd think just to get traction you'd need to have a 3.54 or maybe 3.91. I had a 3.91 gear in my 92 last season and I had to leave way harder to get the car to launch. Will |
