Thread: n1 cam timing

In theory, n1 cams are considered an OEM upgrade on the sr20ve . drop in and go. my question is this, wouldn't the can timing be off when installed in a non n1 engine due to the fact that a n1 engine comes with a shaved down head. I'm prepared to be flamed on this so don't hold back. im debating on purchasing cam gears. .

Never thought of that. If its true the head is shaved a tad instead of chamber work then you would be correct.

I do notice that a lot of people with n1's do have cam gears also.

The shaved head might only equal a degree or 2 I would assume


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most people dont have access to a degree wheel and know how to use it properly

Id imagine that the cams would be retarded about 2 degrees because of the head difference.

That is also for a 1.6l so the only way to tell what is best is put it on the dyno. As far as driveablilty or clearence issues there are none so you are all good to go safety wise.

not necessarily, don't assume. Its the same thing that happens on a dyno when utilizing adjustable cam gears. One persons setting may not work in your application. It may just mean they got the cam timing correct by accident in the process of tuning. It doesn't mean that you gained more power, it means you gained back the power that the motor originally had. If a motor is properly degree'd in the first place, making sure the valve clearances are correct, thats when you get to that next level sh!t of power tuning.
Measure it, and you will know for sure. There is also chain stretch and gear teeth, rocker arms worn, play in rollers, etc, the only way to know is to degree the motor itself. A true engine builder would know how to do that and be able to degree cams from TDC.

displacement has very little to do with this subject, as I mentioned in my previous post, its about making sure the tru TDC of a motor is set up to correspond with cam timing, there is a reason for spec sheets, its not extra irrelavant information. Thats the difference in making power goals, not just throwing parts into a motor and magically it all works.
(example B16 B18 vtec motors, different displacements, but can use same Vtec cams OEM or aftermarket, right ?)

The n1 head is the only one shaved down. 16be is not shaved. and what I'm getting at is how would the cams perform at the ideal factory timing

ideally in the perfect world of 25% better due to displacement right ? but factor in VE and other formulas 5-10% depending on breathing mods ?