Thread: VE+T or DET

I've always heard it would be 9.3:1, but the difference is too small to really care .

If you decide to use the VE head on your DET, would you please document everything so we have a "How To" sticky. Thanks.

Will do, the main thing keeping me from doing that is a broken bolt that holds the passenger axle in. DET only has two that we can use, I'm down to one...

You should just get a VE and boost it. If you port match your manifold or maybe a JGY manifold you can keep the backpressure down. I'd be tempted to get a custom set of pistons in there but there is no need and high compression boost is cool.

When I did my 10:1 uk motor with the GTiR kit a lot of people told me EGTs were going to nuke it. They were wrong... the bolt walked off the rotor and lunched that motor. The high compression spooled it very quickly though so mpg was ~28 when I babied it around.

The ve will hold boost just fine tuned right. Even with the 12lb spring in your external gated t28, you will have no issues if tuned right. That will put you at around 300 or so whp, still have good gas mileage and have a responsive setup. Why would you bother to go external gate and run 6psi? I think the 12 psi external gate setup may even yield more than 300 whp just because of the external gate. If you have 93 octane, throw that 6lb spring in the garage somewhere and forget about it, such a waste of the turbo, the intercooler and the external gate. Don't worry about throwing rods out or any of this nonsense i am hearing about the ve. I have seen stock ve's holding more boost than we are talking about here for a long time and a long time ago, all while making amazing numbers on even old school turbos. This is not new stuff. The external gate should help keep the temps down and since you won't run more than 12psi, the turbo u have is perfect. Tuning tuning tuning. Boost the VE, tune it and run the 12psi spring and don't look back. Stop with this 6psi nonsense and the need to swap bottom ends. We are talking minimum boost here with and intercooler, a tuneable ecu and an external gate.
Drew

Could of not said it any better.

I love boost, but I like to run as little of boost as possible for reliability/traction sake. Now I do have a manual boost controller, so 6psi will be a better contender for it. If I can get a 9psi spring I think that would be perfect (like my W11 was).

I decided to go 3" full exhaust (will see about muffler), so now I feel a bit better running 12 psi on this setup.

12psi will be reliable as all hell as long as your tune is there. Like I said, anything less than that with an external is kind of a waste and you might as well have stayed internal and saved some money. Hell personally I would run your setup at 1bar all day long and not worry one bit if you have the injectors (forgot what setup u have for fuel) to go with the power level. You will be surprised what kind of numbers your setup will make at 12 psi and how reliably it can be done. You have all the right parts, be like nike and just do it!

I went with external gate because of better heat management and a good increase in HP on same boost. But I'll see how well she will handle 12 psi then. I'm afraid of killing the head, not worried about pistons or block .

I'm running/going to be running 520cc STI injectors.

The head should be the least of your worries, good luck and keep the thread updated!