Wolverine
Well-Known Member
- Joined
- Sep 14, 2017
- Threads
- 18
- Messages
- 187
- Reaction score
- 49
- Location
- Huntsville, Alabama
- Vehicle(s)
- '17 Oxford White Premium GTPP
What are your current wheel and tire specs? The RE71R is a great tire for autocross regardless of size (Tire is arguably in the top two available right now, with the BFG Rival being the other), and I figured I'd cram as much as I could under the car. This line of thought works as long as you can get heat into them, but be warned that if your runs are spaced out too much time-wise or you don't push the car hard enough for long enough, that a COLD 305 may perform no better than a HOT 285. This was an eye-opener for me.Did you notice much difference when you went to the 11" wheels and 305 tires? I'm not sure what to expect.
1. I am also quite pleased with the Steeda Dual Rates, and you're right they're 75%+ as good as coilovers for 25% of the price. It's well worth it to start with Steeda Adjustable dampers and DR springs and learn the platform, before jumping headfirst into the deep end with coilovers (although I envision the handling becoming sublime with a set of them tuned in).
2. Which sways and settings, assuming they're adjustable, do you run on your car? I'm looking into options for a front bar only for 2019...
3. 7,904 rpm and 3.55 gears will get you to exactly 70mph with a 25.5" rear tire height. (8,017 rpm to hit 71mph....engineering brain craves scientific accuracy). Use the calculator at this link to experiment for yourself: http://apexgarage.com/tech/gear_ratios.shtml. I found myself FREQUENTLY riding the rev limiter in 2nd at our local events....to the point of great frustration. The GT350 has so many revs to work with the problem is mostly erased, but I needed to fix this issue or I'd go mad. Rarely was it "worth it" in autocross speak to make a 2-3 upshift followed very quickly by a 3-2 downshift, and let me tell ya... riding that rev limiter for 2-3 seconds on course feels like an ETERNITY. I could casually read a book or brush my teeth with all that free time!! Beyond frustrating... lol
4. Bearings are a minor annoyance to install, but I think they're worth it. I didn't give myself a full season on the car in stock trim to find out. I jumped in with full bearings EVERYWHERE and now the car is firmer and tighter, in a good way. Not much NVH increase, but certainly not quite stock squishy. I just wanted to eliminate all doubt, and confirm that the suspension was being worked as intended and not the rubber bushings strewn all about the chassis. Nobody likes chasing a mystery source of odd tire wear due to deflecting components. Mission accomplished then!
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