jwt or stillen cams?

[ky_infiniti2000]

Does anyone have a preference and why? Or is there something else out there better... I am building a SR20DE drag motor...

[P10DET]

Originally posted by ky_infiniti2000
Does anyone have a preference and why? Or is there something else out there better... I am building a SR20DE drag motor...

You do not want the Stillen cam. It's a stock cam for a GTi-R engine, i.e. an engine with mechanical lifters. It's also a POS.

Get the JWT cams.

[G-Forces]

If you're building a NA drag motor I'd look into the C series JWT cams or some hot JUN cams.

[ty423]

Jun makes some awesome stuff but also Toda but are very expensive..I am very sure that JWT cams are also awesome and they have the Competition series as G-Force mentioned...but these will be wild and probably will have to change springs retainers etc..Right now I have JWT cams and love them..made 13Hp on the dyno

[JJr]

You may want to look at Piper cams out of england. Piper did the cams in the BTCC factory Primera. Their cams range from just above factory lift upto a full race cam (powerband from 4000-8000 rpms)

[P10DET]

Originally posted by ty423
Jun makes some awesome stuff but also Toda but are very expensive..

The Toda cams didn't impress when SCC did their SR20 cam shootout. Some of the guys in Connecticut on the SE-R mailing list have put down some impressive numbers with JUN cams, but they are nearly twice the price of the JWT cams.

Originally posted by ty423
I am very sure that JWT cams are also awesome and they have the Competition series as G-Force mentioned...but these will be wild and probably will have to change springs retainers etc..

No possibly about it. If you run the JWT C series cams you must run the JWT valve springs and retainers as well.

[ty423]

what can the redline be bumped up to if the valve springs and retainers with JWT C cams???

[P10DET]

Originally posted by ty423
what can the redline be bumped up to if the valve springs and retainers with JWT C cams???

I don't believe they allow any change in the redline. The cam profile is so aggressive that they valve springs are required to keep the rest of the valvetrain from destroying itself.

The rev limit in a SR20DE is dictated by the hydraulic valve lash adjusters (HVLA). They are not able to keep the rocker in constant contact with the cam lobes. Over 8k rpm the lobes just end up slapping the rockers and eventually they fly off.