Building a "driveable" and "stealthy" high horsepower SR20DET.

[offthewall]

If we're talking dynojet numbers here, 400whp with stock intake and exhaust manifolds is pretty easy honestly.

I'd highly recommend an EFR 6758 for your build, as you won't need an external gate, and it's therefore more low-key. You can also get away with milder cam timing (probably the biggest factor in your emissions testing) with a higher flowing compressor (compensate with boost).

Also, ditch the rocker arm stoppers and do the dual guide mod to the rockers.

[MeSs]

Originally Posted by offthewall

If we're talking dynojet numbers here, 400whp with stock intake and exhaust manifolds is pretty easy honestly.

I'd highly recommend an EFR 6758 for your build, as you won't need an external gate, and it's therefore more low-key. You can also get away with milder cam timing (probably the biggest factor in your emissions testing) with a higher flowing compressor (compensate with boost).

Also, ditch the rocker arm stoppers and do the dual guide mod to the rockers.

Nice, thank you for being on topic and your tips

[PoorMans180SX]

Originally Posted by offthewall

If we're talking dynojet numbers here, 400whp with stock intake and exhaust manifolds is pretty easy honestly.

I'd highly recommend an EFR 6758 for your build, as you won't need an external gate, and it's therefore more low-key. You can also get away with milder cam timing (probably the biggest factor in your emissions testing) with a higher flowing compressor (compensate with boost).

Also, ditch the rocker arm stoppers and do the dual guide mod to the rockers.

This is pretty much exactly what I was going to say, hahah.

Originally Posted by MeSs

My fault, according to the company it's 314cfm. Like I said, this is not a DET head. It's a Primera Highport DE head. The camshafts are Kelford and have 285 duration and 13.6 lift. I don't know anymore I'm afraid The cooling passages are also modified by the same company. Anyways, this thread isn't for DE/T vs VE. If I had known more about the head maybe I could have sold it and bought a VE head, but this head has already alot of work to it.

Holy camshaft batman! You're going to have a hard time passing emissions with that loping beast.