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

i HIGHLY HIGHLY recommend 20v cams for a mid/large turbo build. They make the car so much nicer to drive with the much large low lobes. 20v High lobes aren't as big as the N1's but they are still big enough to make some very impressive power.

They are a much better cam over the SR16VE cam. NO doubt about that.

this is why I am keeping my 20v cams with my 6262 setup. I thought about switching back to the n1's but I like the low lobes on the 20v cams and do not want to spend the money on the kelford 20v/n1 combo.

The Kelford 20v/n1 Hybrid cams don't work as well as they should for some reason. Guys here in NZ have had some disappointing results with them.

I just really felt that the N1 were the better cam. Not something dyno numbers can portray. The car felt better, sounded better, and was more fun to drive. But if you are going to be looking for the best power on low boost...

I guess it comes down to what you want to do with the car, I guess. But keep in mind that airflow needs to be balanced with the cam selection. Careful consideration has to be made in regards to exhaust flow and intake pressures. Having low backpressure will benefit the larger cams better. That's why SR16 cams seem to do pretty well for most. I'm not entirely sure why the 20V did well on lower boost levels. The N1, like I said, certainly felt like they were more powerful. They didn't lose any bottom end power either.

It would have been nice to measure the backpressure on the runs to get a better idea of what was going on.

I made 360whp and 296lbft on just the 20v low lobes @18psi. Compared to 420whp and 308lbft with the high lobes @18psi. This was not done on purpose my vvl did not turn on during one of my tuning sessions due to a loose ground wire.

16ve always make more from around 4k to 6k, after that the n1's take over. The overall power band for a naturally aspirated car is better with the n1's and on a NA it's not soo noticeable, but the midrange hit is amplified with a turbo.

The 20v cams are by far the smoothest, but for the 3071r with high comp and high boost I would prefer the 16ve cams and switch them earlier to avoid detonation. With the OP's set up you are not going to want to rev to 5500 on the low lobes.