Thread: N1 or stock VE cams for my 3071r setup

OP, this is a good point. Of course its your car and your $ so you do what you wish, but perhaps keeping the community in mind would be good too.

I see what's going on here lol...everyone wants to see the results with the N1's. That's understandable though. I'd just feel much more comfortable with the s&r's in there because of the amount of power that high in the rpm band on an internally stock engine.

I'm gonna see where I'm at financially after I acquire the rest of what I need and go from there at this point. Still need the wastegate (JGS 50mm), injectors (probably nismo 740cc), aem ems/tuning, a fmic that will fit the Lucino 4 fog and piping. It adds up quick.

The n1's are safer than stock cams on a sr20ve with the stock s/r. you need to upgrade the s/r kit no matter what cams you have. Mechanical over rev is a issue with turbo cars. You may find the n1's work buy using the adjustable cam gears. look at coheeds threads you can see multiple cam setups with his gt30r and the 6262. I would think that the n1's if they worked would have more peak power vs the 20v's. should make another 10whp up top. The 20v's will have been low end and mid range power. Again its your money. 20v's used usually go for why n1's sell for used.

I'd stick with stock cams. Gt3071r starts to fall off at around 7500 anyways. If someone does know of some 20v cams lmk. I need them for my pte6262 build.

I've tested all the cams in the super sentra. The 20V made the most power, especially at high rpm with the 6262 turbo. The N1 were my favorite cams to run because of how the engine felt/sounded. The changeover was very strong, and on 10psi the car was fast enough on the street that I didn't want any more power.

The 3071r is a good turbo but the .82 housing should be used with a VVL imho. Granted I'm at high elevation so I have to deal with higher pressure ratios and more backpressure than you guys at lower elevations. But the .82 will like the larger cams as well. The GT3071r is a better matched turbo than the GT3076r I used previously.

I would go to the SR16 cams for the price, N1 if you really want the engine to scream, and 20v if you are looking for that peak dyno number. The 20V cams felt good, but the cam changeover was weak in comparison to the SR16. Sometimes its better to have an engine sound better, and to have VVL hit harder than it is to make 10whp at the very last 100rpm of the powerband.

So, it looks like the 20V cams dominated the N1 on low boost with this setup, but the N1 performed better on higher boost levels. Look how hard the N1 cams come on boost! Insanity.

If you see some 20v cams for sale, gobble them up! they are no longer available from nissan, i think i brought the last few sets

What I find interesting about Coheeds results is they are done on a low 8.5:1 compression. So the N1's shine with a bit of boost and cyl pressure pumped through them. I am guessing this is due to the extra overlap of the n1's 57deg vs 78deg. I would guess that with 10:1 comp or higher the n1's would shine on lower boost as well.


To the OP:

take up blackser's offer on the swap plus cash your way for s16ve non n1's. They are the best turbo cam for you turbo. The low lobes are the best suited for under 4k power, also best suited for turbo with its ex bias. Also even NA the sr16ve cams make the best midrange. Your turbo is a mid range turbo. Plus you don't needs springs.

So my advice is swap N1's for non N1 s16ve's. Have the best cam suited to your turbo. Make more power in the areas that you wants. Rev to 8k with no springs. Then win at turbo ve's.

Really don't over think it! get the non n1 16ve's and call it a day. Even on naturally aspirated ve's I kinda like the power band of non n1 16ves over n1's. the n1's just make a little more power and go nice with some revs, but the 16ve non n1's kill them in the midrange!

p.s. 20v overlap is 57deg, 16ve 70deg and n1 78deg.

The 16ve cams will suit you stock ve compression perfect also.

Thanks @ca18 bluebirld! I was completely sold on 20v cams too and my setup is going to be VERY high boost.

Something must have been wrong with your car, I tried SR16VE cams then N1 cams and the N1's shit all over the SR16 on the bottom, in the middle and up top.