1NZFE Safe REV limit - Toyota Yaris Forums - Ultimate Yaris Enthusiast Site

01-09-2010, 02:17 PM

#11

Parmas

Drives: Vitz RS Turbo

Join Date: Nov 2008

Location: ML

Posts: 577

Quote:

Originally Posted by cdydjded

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.

What if one own the Gude head?

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