how much can 5sfe take?, how much is to much? Options

[Toyota_guy31783]

Does anybody know how much boost the 5sfe can take. Im am seriously thinking about getting turbo on my car and i dont want to blow it up. How much would be a same daily running. My car has almost 100k on it. would it be wise to put on a turbo without a overhaul on my engine. I dont want to get rid of my engine for a 3sgte, I want to keep my gt a gt. It is a sentimental thing. I just couldnt part with my 5sfe.
also i have an automatic, will it be able to handle the extra boost?

[scothaniel]

The 5SFE can take a lot of abuse, the stock rods/crank can handle 400HP.

I was under the impression that the stock 5SFE compression was 9.8:1 =
http://www.toysport.com/Technical%20Inform.../spec_sheet.htm

For a little extra power, you can get away with low boost pressure on the stock motor. Anything above 5 or 6 psi, and you should upgrade to lower compression pistons and a metal head gasket. Raceeng.com has 8.5:1 pistons available for the 5SFE for $400. The HKS head gasket for the 3SGTE (87mm bore) will work on the 5S, as long as your cylinders dont need to be honed out. If you go with low comp pistons, then go with a head gasket that is close to the stock thickness. At that point, you can safely boost until your ECU and Fuel system stop you.

Personally, I'm starting to think the 5SFE and 3SGE engines are capable of the same power levels as the 3SGTE's for the about the same price - or even cheaper as compared to the 3rd gen 3SGTE's.

QUOTE

Also if you are going to get a new gearbox, go for one out of an SS2 celica(the one with the 3sge). It has LSD and should handle the power no probs.

The SS2 Celica used a newer S54 trans which has a lower final gear ratio and the option for LSD - but LSD was not standard. I have this trans from a 3SGE Curren and its not LSD