1NZFE Safe REV limit - Toyota Yaris Forums

Parmas · 01-09-2010, 02:17 PM

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?

cdydjded · 01-09-2010, 04:46 PM

Quote:

Originally Posted by Parmas

What if one own the Gude head?

What was done to the head? Cams? Springs? Valves?

Giupo · 02-09-2010, 09:28 PM

these are the oem camshafts value :

Engine: 1NZ-FE
Valve Timing

>Intake<
Open -7° ~ 33° BTDC
Close 52° ~ 12° ABDC
-----------------------
>Exhaust<
Open 42° BBDC
Close 2° ATDC

Intake durations : 225°
Exaust durations : 224°

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02-09-2010, 09:28 PM	#3
Giupo Drives: Yaris Join Date: Apr 2009 Location: Italy Posts: 77	these are the oem camshafts value : Engine: 1NZ-FE Valve Timing >Intake< Open -7° ~ 33° BTDC Close 52° ~ 12° ABDC ----------------------- >Exhaust< Open 42° BBDC Close 2° ATDC Intake durations : 225° Exaust durations : 224°