mr bigolsworth
Well-Known Member
May seem lazy for just asking but just curious what's the highest whp you have seen on a street driven all motor 9th gen si?
I like them a lot. But if I did it all over again I'd go CT supercharger. That's probably what I'll end up doing. But my car is a ton faster now. I think easily high 13 second 1/4 mile.
The oil issue with it being hot isn't really an issue at all with the 8th(assuming its the same with the 9th)I don't like the fact that my motor oil will be super heated by the turbo and used for my engine as well. Lol. Plus more chances for an oil or coolant leak. I just think the supercharger is easier to install and consistent boost. If you use a manual boost controller on a turbo. There's a chance it could come out of adjustment and potentially over boost.
Just think the turbo creates more heat in the engine bay
Plus with the supercharger. You still get to use all the bolt on mods. Cold air intake, header. Etc.
The oil issue with it being hot isn't really an issue at all with the 8th(assuming its the same with the 9th)
And everything else you said is all install errors if that comes up. With a 3/4 port you don't have boost issues and upon failure you have a max boost cut and wastegate if it turns off. Intake doesn't matter, and exhaust side is just your DP and exhaust lol
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9th gen Si CT-e kit, 3.15" pulley. 91 octane
_________________________I've seen one with like 248-251 using e85 fuel. But the rest was all bolt ons. Rbc , zdx tb, 1000cc inj, catless dp 3"exhaust.
I have the RBC ported to 70mm , zdx tb, rdx inj, skunk2 dp, full race exhaust, 3" cold air intake. . I made 235whp
Using flash pro for tuning of course.
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I like that 235whp number. Not including Flash Pro, what's the bottom line on adding that 34HP?
Thanks!