Top speed with R154 and Supra TT auto LSD?
#2
Lexus Test Driver
iTrader: (3)
Or are you just asking in general what the maximum top speed that you can reach? The R154 and AUTO LSD (for the most part) have nothing to do with that. It's your final drive gear ratio that matters, same with the 1/4 mile. If you have the entire rear end (you didn't specify) out of an auto TT then you have the 3.7 gears I'm assuming.
On a final note, this is a realllllyyy subjective question that you can't really answer. Unless you are at the salt flats, you aren't going to "max out" the gears, no matter what trans, no matter what final drive, unless you are asking about a specific gear with a specific rear end with a specific trans. Such as, "If I mated X trans with X.XX gearing, what is the highest MPH I could reach in X gear?" Then it's just a matter of math.
#6
that's easy bro, just drive normal on 5th gear and determine your speed at 2000 RPM then multiply by 3, that would be your top speed. I'm not sure f you already have the lsd on the car though, maybe i missed it. That's how i calculated mine which is 14ish on R154 and stock 4.28 pumpkin <soon to put on the auto lsd>..
#7
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