What turbo?

[Paradigm_Guy]

Originally Posted by Highboosting///M3

I rode in my friend's M3 who has a T4 tubular manifold and a pt67 non-ball bearing .63 a/r hot-side turbo. Full boost making 616whp is 3500rpm. Still very streetable and capable of 700whp easy.

So far that is the single most enjoyable car I have ever experienced. Much better than the T66 Supra I had or other single turbo Supras I have been in.

So yes, with this car you can make plenty of power and still have it very streetable. He does have a 2.79 geared LSD which helps keep the car in boost longer and is very enjoyable at cruising speeds. So with a shorter gear ratio you can get to boost even sooner, but will sacrifice traction. Also a dual ball bearing setup would obviously increase the spool much more as well.

Oh yeah? Who's car was that?

[Defacto]

Nice, we got ourselves another one

[MrBlonde]

I'd say GT30R is the perfect turbo for a 3.2 litre m3 street car. You've got three choices of hot side.

GT40R and above is definately too big for street driving. GT28R is too small.

[Concentric190]

Man, everyone is comming over here!

[Highboosting///M3]

Originally Posted by MrBlonde

I'd say GT30R is the perfect turbo for a 3.2 litre m3 street car. You've got three choices of hot side.

GT40R and above is definately too big for street driving. GT28R is too small.

I have to say that I had that turbo on my M3 and I loved it!!!!! I wish that I had two M3s...one with that turbo and one with the crazy setup. For the street that turbo kicks ass! With a nice efficient system it spools 0.82 hot side at 2800 rpm. It's like a big V8. Throttle response is immediate! Just tap and hold on. It more of a quick ride than a fast ride. Fast takes a while but screams top-end where quick is that turbo plus short gears stoplight to stoplight.....before the guy with the bigger turbo starts to spool you are gone!

[Paradigm_Guy]

Originally Posted by Highboosting///M3

I have to say that I had that turbo on my M3 and I loved it!!!!! I wish that I had two M3s...one with that turbo and one with the crazy setup. For the street that turbo kicks ass! With a nice efficient system it spools 0.82 hot side at 2800 rpm. It's like a big V8. Throttle response is immediate! Just tap and hold on. It more of a quick ride than a fast ride. Fast takes a while but screams top-end where quick is that turbo plus short gears stoplight to stoplight.....before the guy with the bigger turbo starts to spool you are gone!

Yeah, but can you go bike hunting with GT30R? I think it'd be too small for my taste.

[MrBlonde]

Originally Posted by Paradigm_Guy

Yeah, but can you go bike hunting with GT30R? I think it'd be too small for my taste.

For freeway rtuns you'd go something bigger .. but it would be shitty around town.

[Paradigm_Guy]

Originally Posted by MrBlonde

For freeway rtuns you'd go something bigger .. but it would be shitty around town.

You keep saying that, but our NA power isn't bad. I think that a GT35R or a T67 spools low enough to be good on the street.

[Josh]

If the setup is done properly, the GT35R is very responsive and also very streetable. On my car I have had so far a TD06 20g, 60-1/20G hybrid, T61 and now a GT35R. The 35R is the smoothest and most responsive out of the bunch by far. The GT30R would certainly spool up faster and is a great option if you are content with its power, but by no means are turbos larger than it like the GT35R not perfectly streetable or an issue around town.

[MrBlonde]

I think GT35R is a good turbo for street .. never said it wasn't. I think a GT30R is a better choice for a street car.