From factory s13 SR = 140hp at flywheel, s14 and s15 SR = 160hp at flywheel.
Interesting seeing as a stock CA18DET has 175hp at the flywheel from factory
They are a very tough NA motor that are good for cruising and go for miles
Go the quad throttle bodies and cams for more power on the NA's. They are not considered a performance motor however and get beaten every time by the high spec Honda and Euro NA's
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SilviaWA
1992 180SX: cwest, vertex, wise, pivot, gemax, embleton, kyb, blitz, whiteline