500-550 for the 30r im guessing, I'm sure someone can squeeze out more

 

Check out the GT3082 that I'm running. It's a GT40 housing with GT30 compressor wheel (it's also called the GT3040). It's in between a 30 and 35 somewhat in that, it has the huge midrange AND a higer peak. I get full spool at 4200 rpms with the minime top mount. Getting to 500 with the other 30 series turbos might be a stretch but I'm thinking that the 3082 might be able to do it (we'll find out soon enough on my car as 500rwhp is my goal too).

 

it has the 40r hotside and the 30r compressor?, wouldnt that not be as efficient as a reg 30r? it just take longer to spool? i might be wrong but it makes sense to me, please clarify

 

Highest I have seen was 495 on pump gas and a dyno-pack dyno at 16psi, tuner said higher then 16psi was capable but you'll be out of the compressor efficency range. So probably 530ish is possible on pump with the right tuner and manifold.

 

GT3071R is a great turbo for quick spool and 400 whp. If you want 450-500, you need to consider at a minimum the GT3076R. It will spool a bit slower, but still spools faster than the GT35R.

You want at least a 0.82 a/r turbine housing with a GT30R. I have run both the 0.63 and 0.82.

Tim

 

BTW- The GT3082R isn't bad, but if you really want that compressor consider a full GT35R. The GT30R turbine wheel really is too small for that compressor: the GT35R turbine is a better match.

Tim

 

Spool up on my turbo is much quicker than the gt35 though. My tuner had never tuned a gt30 s2k before (only done SC61 and gt35s) and he was amazed with my hp curve. It should also put out a higher peak number than other gt30s.

For reference, I'm running a .62ar hotside with it for extra fast spool up.

 

i'd like to see an hta35r on an s2000. should spool up much quicker.

 

whats an hta35r?

 

from buschur racing's site...

"The FP3582HTA turbocharger is very similar to the standard GT3582R Garrett turbocharger in overall size and footprint, but that is where the similarities end and your new found power begins. It comes with a 4" inlet and 2.5" outlet anti-surge ported compressor housing. This new and improved style of anti-surge port provides a longer and more gentle bell mouth guide for the air all the way down to the inducer tips. The standard turbine housing is the T31 housing in 2.5" outlet for compact installation applications such as 4G63. Other turbine housings styles are available.

Repeated dyno testing and thousands of miles of street punishment have shown how much faster spooling the HTA is compared to the normal 35R. Midrange and bottom end torque which are usually dismal in regular .82 A/R GT35r kit cars are DRAMATICALLY improved with HTA compressor technology"