This is the 2nd version of my build, which has spanned 3 years. The first bit the dust with the fold of the PGA forum last year, so i'll take the opportunity to expand on a few things now with the new forum in place, and maybe make it a little more general for those guys who wish to follow, or simply need part numbers, or advise.

Dec 2013... bought a low k sr20ve and vzr 32v gearbox.
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previous owner had fitted n1 cams, but didn't get around to starting it. n1 cam part numbers are 13020-1N519 and 13020-1N521.

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i see a few people ask "how do i identify if i got n1 cams or not. these next two images may help.

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SR20VE
Red on the intake
Mauve on the exhaust


SR16VE
Green on the intake
Beige on the exhaust

N1
Orange on the intake
Green on the exhaust

i figure the easiest way is measure the hi-cam intake lobe. its 39.4mm lobe is almost 1mm bigger than a sr20ve one