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Thread: Safe RPMS for a SR20VE + N1 cams

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2012-06-26 12:49:14
Safe RPMS for a SR20VE + N1 cams
A friend of mine is building a SR20VE with N1 cams, big header, big muffler, big intake manifold w/ Q45 TB and we need to know what would be the max RPMS we can rev the engine safely. I mean how high can we rev if we are still making power. The issue is that we have read that the 4cw crank is not a good example of a balanced crank so he is worried about any engine failures for revving too high.

He is using also aftermarket springs for the head so from that side we are not so worried.

Any help?

Thanks guys!
2012-06-26 13:20:21
Here you have SR20 Community Forum - The Dash - Search Forums
Here are a lot of thread about that
2012-06-26 14:17:32
2012-06-26 16:35:48
Stock redline on the sr20ve is 7200, you can not rev higher.
Last edited by cory on 2012-06-26 at 16-36-54.
2012-06-26 16:37:20
Originally Posted by cory
Stock recline on the sr20ve is 7200, you can not rev higher.

We have a Nistune ECU and N1 cams, and bolt ons that would let the engine breath at high rpm...

2012-06-26 17:13:53
don't put a limiter... see what's the max out of your engine ^_^
2012-06-26 17:14:56
My vote is to revS it till an intake valve makes it out the exhaust.
Last edited by BenFenner on 2012-06-26 at 18-29-32. Reason: Remove out of context stuff now that posts have been moved and copied to the Enlgish lesson thread.
2012-06-26 17:15:53
Also not sure why cory is concerned about VE recliners... But I applaud the idea.
2012-06-26 17:22:17
This thread bent a valve on the first post.
2012-06-26 17:31:04
Originally Posted by wnwright
This thread bent a valve on the first post.

No it bent a valve as he was freaking typing.
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