Thread: Let's talk VE-T cam setups!

I would love your input on this, as I am getting ready for the dyno and would like some feedback on what to test and what I can expect. Turbo cams are going to be hard to figure out because everyone's setup is different. But hopefully we can get an idea of how some of these setups will react. This is what I have gathered so far from the datascan and the butt dyno.

VET cams: started with these with the log manifold, loved them, but they seemed to like high boost. On the tubular manifold, boost is instant. Bottom end is phenomenal, and midrange is very strong. But power output with these cams should be lower than other offerings with more duration. Exhaust lobe high is unknown on duration as of right now, but looks like a pretty healthy bump!

VE cams: on the tubular manifold, these have a very strong top end. Turbo spool is not as good as the VET cams. Actually, not comparible lol. There is a latency time before full boost is hit that is much more pronounced on these. The exhaust switchover seems to help spool and makes a big bump in power upon switching. The intake cam starts its healthy pull around 5500-6000 rpm, quickly running out of room because of a 7500rpm rev limiter.

SR16VE cams: JP has tested these and has shown huge gains in top end power with minimal low-end loss. I would imagine this cam would be the perfect cam for big top-end power up to 8500rpm or so. I would like to test this cam on my setup as well, but need some valve springs swapped in and the JWT rev limit removed before I do.

Hybrid cams: Just speculation here. I would like to see how power would look with a VET exhaust cam (switching also) and the other VE cams. It would seem like the 20V intake cam would be the best suited for the VET exhaust on paper. I want to hear what you guys think. I imagine JP will post up his results with different cams when he gets his car finished, but for now we can speculate on a good setup and the best compromise between power/response.

I am very interested to see how the VET exhaust cam will react to a much bigger intake cam. Especially when the VET cam switches. The only catch here, is the possibility of the VET high lobe having too much duration and not making power...

My experiences with the baby GT2560R turbo have been that both VE cams spool quicker than the VE in / VET ex setup, and when the VE / VET cams switched it was just too much flow for the turbo - with torque dropping as a result. Moral of the story is to put a bigger turbo on!

From the results people have seen, I'd like to see what a custom grind based on 20V cams, but with less overlap and less aggressive ramp angles on the high lobes. I haven't had a chance to go and see Franklin's yet as we discussed.

I wonder... the VET cams seemed to love the log manifold where the VE cams didn't. I wonder why your setup likes the VE cams?

Did you do the VE intake and VET exhaust?

Tubular manifold + stock 2.0 cams set at 0 = WIN

Yeah, that was actually the setup I had on when I dyno'd 197kW with a big dip in torque at the cam switch (5500rpm), not both VET cams as I originally posted :o Both VET cams caused a bigger drop in torque between 3500 & 5500rpm while road tuning, so I didn't dyno them.

I think the reason your results differed from mine is cos I've used the stock VET manifold & turbo. There's only so much gas you can force through that little T25 exhaust housing...

I intend to try the 20V cams as soon a I get pistons with valve reliefs cut in them ....I have a fealing the will rock

JP made 50whp more with SR16 cams.

I have the Standard VE cams in there now set at 0 and running 10psi. It feels okay, but it isn't anything crazy incredible. The gains over the VET cams is not as big as I thought It would be.

I am running open downpipe right now and the one thing I really like about the VE cams is they are really really quiet until the VVL hits. The VET cams are loud as hell.

I am going to add some boost today and see how she feels on the VE cams. I know the car isn't as fast as 15psi with VET cams and the log manifold. I expected around 350whp with 10psi on this setup, but I would have to rev to at least 8K to see that. You can def feel power still climbing on this low of boost. I think I am going to invest in some valve springs first!

Me too. I have a feeling they will stomp the standard cams.

I saw that when he posted the info but, I for one am not to concerned with whp. I am more into the power band. WHP is just a number. Manny's old SE-R ran like a raped ape with stock 2.0 cams.

I am curious to see how the 20V cams would perform on a turbo car. I have driven a NA car with the 20V cams and the bottom end difference compared to SR16 cams and N1 cams is very noticable.

I will be running stock 2.0 cams on my motor.

I want a broad powerband, but the 20VE cams need more revs to have the powerband of the VET cams, but even those were a little peaky.

WHP isn't that big of a deal, but the SR16 cams leveled off power at 7K.



These look promising. Nearly the same power on 2psi less boost and the powerband is nearly the same as well. I would like to try some SR16 cams on this setup to see what happens. Even though my setup is far more restrictive than JPs.