2.3 stroker and turbos

Ok guys finally getting time and cash to tear into the engine block. Im in the process of building a Sumer cruser and track racer, i have other daily drivers and winter cars. Should I build a 2.3 stroker or a high reving 2.0. Personally the stroker is looking very pleasing due to being able to spool up big turbos. But is it smarter to build a high rever for the track? Seccond, for a 2.3 stroker is a ball bering turbo nessicary i mean i love the ideah of an even quicker spool up time. But then again they are more expencive. Im looking at this BB turbo Garrett GT3582R, or the Garrett GT4082 or or the GT4088 are these to small or big for the 2.3 storker (with supporting mods of corse).

Also with the 2.3 stroker what camshaft works for the lower reving motor? im looking at the hks 272 (280's powerband would be to high for the stroker right?)

Thanks guys

280's would be about right for a stroker. 272's on a stroker are compared to stock cams on a stock 2.0. 280's require upgraded springs.

I would check out Brian Crower 272's or 280 depending if you want to upgrade your valvetrain. Save you some dough and PROVEN. As well as forced perforamance fp2x which were designed with a stroker in mind.

Check these links out:

http://store.forcedperformance.net/merchant2/merchant.mvc?Screen=PROD&Store_Code=FP&Product_Code=FPCamInt&Category_Code=DSM-Engine
http://www.briancrower.com/makes/mitsubishi/4g63.shtml

What are your goals?

Well i guess my goals are a car that can be streat leagle, yet powerfull enough to do well at the track, for now (porbbably the summer of 09) i want it to be in the mid to low 11's. Later on i want to be able to push 10, there are some big block v8's at my local track that all the import guys are to scaired to race (most import guys in my city are dumbass ricers). Bassicaly im looking to build a car that can hold its own at the track and be able to cruse around the city in the summer.

Mmmmm, Thor sees. Regardless stroker or 2.0 I would say get a GT35R, on a 2.3 I think they see spool by like 3800 and on a 2.0 its more like 4200ish. Ball bearing would be ideal, but I have heard that actual spool time is hardly impoved, maybe by 100 or 200 rpms at best. The main reason for them is strength, the thrust bearings tend to like to blow if you are hard on the turbo. Just remember, you are going to need the built motor and I doubt your tranny will hold up for too long on that kinda power, a heavy ass clutch, a great fuel system, and DSMlink or AEM EMS to tune that bitch and a host of other stuff.

2.0 vs 2.3 has been and can be debated endlessly. For all out track racing, the 2.0s just plain do better. RPM is your friend for low ETs, because you take advantage of the lower gears for a greater portion of the track. If you need to spool a big turbo on the street, even in between races, the stroker is worth serious consideration. It's a compromise, like everything else...

35r is the minimum I would recomend for a stroker. It spools where a 16g-20g spools on a 2 liter, so why go smaller? It will also max out around 29-30 psi at redline, which is perfect for 95% of DSMers, since most never go over 30 psi. If you want to go bigger, I ran a t67, which can be had in BB as a GT37R now. It's a 75 lb turbo, but an older compressor (that still does well though). The more modern GT40 options are a great fit at around the same airflow level with more efficient GT wheels, and a slightly larger hotside than a T3/T67. The 4088 is around 70 lbs, and the 4094 is around 80, both flanking the T67 by 5 lbs. If the 4094 had been available in journal bearing I would have put one of those on the RWD instead of the GT42. Those of you guys on the DSMlink board know what Tony N has done with the 4094R on his 2.3l 2g (high 9s with a broken rear diff).

Also note that with another 15-20% displacement, you need to get rid of 15-20% more exhaust product at the same boost level. That means a bigger hotside. For example, most people running a T3/T4 on a 2 liter were doing the usual .63 turbine housing, while those on strokers really should lean toward the .82. This is why I feel the GT40 hotside will be beneficial on a stroker, though I haven't run one myself yet.

So to recap, displacement depends on which side of the high rpm/quick spool compromise you want to lean towards, and the 35r is the smallest I'd go on a stroker with the GT40s being a good step up from that. :)