1NZFE Safe REV limit

[cdydjded]

Originally Posted by cali yaris

My head is ported and polished, but otherwise stock, no work to the cams or valves. My redline is set at 7200.

When you tune, just look for the power band, that will determine your redline. Higher is not always better. On my tC, it quits making power at 5800, so there's no need to set a super high redline on it.

Porting and polishing you head does not change your max redline. Based upon your dyno sheet & the barber's dyno sheet our engines make max HP @ 6000rpm and start to loose power beyond 6500rpm. The reason is the camshaft specs specifically duration. IMO you do not need to be anywhere near 7200rpm. IMO 6500rpm should be you redline.