Thread: Cam timing with SR16VE cams

So what if I considered a 30R or 35R on my stock VE. Nothing crazy as far as boost, just some exrta power.. 9-10psi maybe.. would that be plausible without a built bottom end and NOT going crazy?

You will hardly feel that turbo on 9-10 psi. 20psi+ is where it wakes up. For such low boost you could try a smaller turbo.

I made 320whp on 10psi with my GT3076r. You feel the turbo choke over 20psi, but a regular undivided housing would hold power a lot better. It's all speculation at this point, but The 1.06 divided seems really restrictive up top, and causes the turbo to die off with more boost.

A GT35R on 10psi on this setup would make prob around 350-380whp. For 10psi that is not bad at all! I really wanna try it, but I don't want to lose the response that makes the car fun to drive. The SR16 cams made the power shift upwards, but also made gains in the mid-range. Off VVL it feels softer, but once the VVL hits it spools really fast. The 2.0 cams seem to like 4500rpm switch point, the SR16 cams love 3600-3800.

Stock motor with low boost could work, but you will blow it up. Just keep that in mind. The pistons will let go, the rods could let go, you could overrev on the factory rev limiter and kiss some valves. Especially with the stock 2.0 cams. They seem to like to float easily.

Makes no sense to me to run such a big turbo for such little boost.

Like Kevin said I would try something smaller that would be closer to its efficiency range at the lower boost level.

Really bro? I know many people rolling around on stock motors on boost that have been rolling around for years. Hell some in the mid 300's that are daily drivers with zero issues.

Again so many people give out this false info. If a stock VE on boost is tuned right it will last just as long as a DE will.

Correct sir! I also know many people at those power levels and higher that run a stock VE.

care to say what turbo set was used and what amount of boost?

running over 300whp with 10.3:1 compression on a small turbo won't last, at least on the 91 octane we have around here. Hell, Even with a much larger turbo I can't push much more than 350-360whp without light detonation issues. I'm using the same tune as everyone else.

Not saying it can't be done. Just saying one bad tank of gas could cost you a motor. Light detonation on a VE can kill it, and though many have had success, many have not. And it may or may not be an issue with tuning, but how many RR engines have seen cracked ring lands from light detonation. Hell, ask JWT. They've had stock VE engines detonate while completely stock with their program and break things. The VE just can't handle detonation very well.

And there is a reason to run a VE with a large turbo. The VE hates high backpressure. Lower boost and more flow works best for the VE.

Most were some sort of T3/T4 of different trims on log manifolds . Its been a while but I remember a T3 60trim on 14 lbs made around 380whp maybe. This was also all done years ago and isn't a new crazy phenomenon I have seen stock T2 setups work as well, gti-r being the best. All on the stock engine, with 93 oct in the tank. These were done with tuning on Calum ecus but of course a Nistune ecu would work since you don't have the Calum option anymore. Tuning is the key.

going sr16ve cams with 8,7 compression ratio
gt3076r 0,63 ar is small?