1: About what RPM do these turbos spool (moderate full boost - 15 to 18 PSI) on 2L engines (Ill even take stroker info)?

2: Anyone who has driven or owns a car with a larger turbo, how responsive would you say it is?

3: Any dyno graphs showing torque, HP, and RPM?

I am trying to find graphs of these large turbos on smaller engines to see about when they will spool on my street / strip MR2. I want something that will spool to moderate boost levels by around 5500 RPM, and revving to likely around 9k.

Thanks.

I will do some more searching around, but I havent been able to find much really.

 

SR20DET'd RX7
67mm P-trim .58 a/r tangential housing
~5200rpm 20psi

 

So far there has been no proof that T4 is worth the loss in spool over a T3 in a 67mm wheel. The only info I could find was on Rx-7's A-Spec found a additional 10-20whp by going to a divided T4 over a standard T4 or T3 with better transient and minimal spool up loss.

700whp capable the 37R is for you IMO.

 

Im looking for 500 on 91 pump and around 700ish (for a 9.99) with meth injection and possibly some spray (no race gas), which is why I will need the most efficient hotside possible I think. Thanks for the info! Anyone else?

*edit*

Found a thread with a few guys talking about full boost (much higher boost levels than I would run on the street) at the high 5k range, so I guess with a medium sized T4 housing Id be right around the 5500 mark for spool with the 66mm full T4 Im looking at.

 

Ill have dyno #s soon!