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-   -   Next turbo size up from stock S4? (https://www.rx7club.com/2nd-generation-specific-1986-1992-17/next-turbo-size-up-stock-s4-979843/)

Jeezus 12-10-11 10:08 AM

Next turbo size up from stock S4?
 
Anyone have an idea on the next size up turbo after an S4 stock?

Want to get a little more power, and hopefully a BB turbo...

AGreen 12-10-11 02:38 PM

A hybrid, probably a U-trim T04B. You won't get a ball bearing in a hybrid though.

HOZZMANRX7 12-10-11 03:18 PM

Actually, the "next" upgrade would be simply to an S5 turbo. You start going much beyond that and you're getting into needing upgrades to fuel, injectors, and ECU.

Jeezus 12-10-11 03:44 PM


Originally Posted by HOZZMANRX7 (Post 10895032)
Actually, the "next" upgrade would be simply to an S5 turbo. You start going much beyond that and you're getting into needing upgrades to fuel, injectors, and ECU.

That's not a problem, carburetor powered.

Not looking for any internal wastegate turbos.

Turblown 12-11-11 12:38 AM

57trim To4E is the smallest entry level turbo I would recommend. Makes 400rwhp between 16-18psi. In t4 trim it is a free floating turbine housing( no internal wg). With a nice divided turbo manifold and free flowing exhaust spools just as fast as a stock T2..


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