Thread: How much WHP has been done on a Boosted STOCK SR20VE??

Thats the thing though. The power band of the SR20VE is really shifted to the right on the VE compared to the DE's and DET's. Its sort of a good thing and a bad thing at the same time.

The debates im having in my head is...The DET with S4's is going to have a good power band shift to the right also. But shouldnt the VE have a nicer tq power band under the second cam swtich?

Looking at the N/A dynoes though it doesnt really look like that. The DE's have more Tq down low while with the VE's you have to rev to get to the Tq. I like the instant throttle response of the DE's. But I want the top end and low end driveability of the VE along with the better flowing head. Id also have to buy another fuel rail for my top feeds along with bigger injectors (which I need to buy anyway). I guess the question is where the smartest place to spend the cash to get the best outcome.

I mean hell N/A 8.5:1 with bolt ons will only feel slightly slower then a reg DE add in a nitrous shot and itll be moving pretty good for a daily. Then the VE with the alsmost perfectly sized turbo for the motor IMO should be good for a reliable 400-450whp hopefully. I think im going to try this and see what happens. But im looking for input here.

c16, gt35r, lovefab manifold, aem ems,740cc nismo.

Im talking daily driver stuff here. C16 is cool. But the car would be running on 93octane most of the time and 100octane some of the time.

Man you are one confused dude man. Leave the thing NA With the ZEX and do up the electron blue with cams and ish.

would the following combo be sound i wonder, if your after say ~300whp and reliable?

gt28r/rs at 10psi
nismo 550 injectors
FMIC, exhaust etc
ecu with good tune

and how do the n1's react to boost?

^^ second that. How do N1 cams do on boost?

hmm i am going to speculate here, but the reason i think what really kills the torque down low is the 6.6mm ex cam, so say you switch at 5k a de with a 10mm lift cam is going to make more from around 3k-5k.The other being the 48deg of overlap once you hit high lobe, so this means you really need to rev it to make power in a forced fed induction situation.

However in saying that i feel there is a really good solution (although i havnt tested this first hand yet)



as you can see here, the problem with taking out overlap on the high lobe is that the low lobes have no overlap so you create a siltation where the intake and ex are closed.

however if you set up your solenoid so that the ex lobe is always on high, then get some cam gears and retard intake 10deg and advance ex 10deg (obviously fine tune this on the dyno to your engine) all of a sudden you have 0 deg overlap on the low lobes and 28 deg over lap on the high lobes, which is the dame amount as s4's if i am not mistaken.

so this will give you a 224 8.4in and 268 10.3ex low with a 264 10.7in and 268 10.3ex high. In short a similar set up to the vet but with more duration and the vet smashes the det in torque and torque delivery. Peak torque before 3k from memory

i think this set up would be well suited to your turbo, and are you running standard manifold?

however i would swap the blocks and heads round, so put the vet head on the det block, i am not familiar with the bluebird motor all that well, but to my knowledge its not like the gtir? the studs are the same as the rwd det?

^^ This is basically my setup to a T.

T28 at ~10psi
STI 520cc injectors
FMIC with 2.25 cold and 2.5 hot
2.5" DP and 2.5" catback
Calum RT (FTW)
Hopefully an AEM wideband if I can find a good deal



My build is going somewhat slow and I've hit a couple snags here and there. Slowly but surely. Now, I don't think my power goals are as high as yours, as all of my stuff will Max just above 300. I am hoping to push it to 320 though. I was hoping to do this on 10-12psi. I don't see the stock VE having trouble with that amount of power on a good tune. Or even a half decent tune (no thank you JWT )

2.5" cat back is kinda small for a turbo. Ur going to choke it up.

I'm aware, but it's already on. I may upgrade it later if I find that it's a real problem.