Took mine out to a local meet with my kid. There were at least 50 Supras there. Also found out it walks away from a new Mach 1 Stang like its standing still.
I have a Mustang dyno a couple hundred feet away from me that gets run with 1000hp cars all day long. I have never seen that big of a correction factor. That seems more like estimated crank HP.
I get you. When I was tuning my Evo for flex fuel, the first time I topped off with e85 (actually e78), I noticed how much better it ran even though the boost and timing were identical to the 91 map.
So.....
1 - that's like running e85 and not upping the boost or timing..... boring but safe.
2 - as long as it has a flow sensor and low tank level sensor, I'm good with it. That is assuming you are actually tuning for it.
I probably run the widest front tires out of most of you (315s) and have a pretty aggressive alignment. My car does tramline a bit but it's not bad. I honestly think it has more to do with the amount of camber I run over how wide the tires are.
When I got home today, I got caught by a solar panel solicitor. Garage was open and he saw the supra. First question he asked, so how does it drift? Second question he asked, is it rwd? Third question asked, what does it do 0-60? .................... kids these days.
I run studs instead of the stupid factory bolts. So no worries with running spacers. These are the studs I got.
https://www.apexraceparts.com/store/accessories/stud-kits/apex-m14x1-25mm-a90-gr-supra-5-lug-stud-kit.html
As for the spacers, I just got them off Ebay. They are hubcentric ones...