11SECEVO

Guys,

The other day I installed a Bleed-Off Air-Valve, a SIMPLE One Way Needle valve (NOT an Aquarium valve) type Boost Controller on my IX, and it Works like a Charm. I simply Cut the line going from the stock TEE that connects to the Wastegate (Directly under the air box) and then put the NEW TEE there up to my Bleed valve...and it works like charm...

Here's the Results:

After TWO days of Testing on my local 'Test Track', and about a dozen 1/4 mile blasts it looks like, in order to get SOLID 20Lbs. of boost during a pass(1/4mile), I need to keep the valve ALL THE WAY OPENED heres the Boost during a pass:

1st = 21PSI (4800-7000)
2nd = 19-20PSI (4900-7000)
3rd = 19PSI (4900-7000)
4th = 19-18PSI (5000-7000)

But on the Highway Forget it..it'll spike to ~24PSI and settle back to 22PSI in fifth up to about 5800rpm (didn't have the Conjones to go any faster than that), so with a 93+Zylene mix (~97 Octane) it looks like a GREAT Track only mod!!!

We'll find out for SURE when i hit Maple Grove in a few weeks!!

Warrtalon

iTrader: (6)

What's so bad about just having a real, reliable MBC that does not need to be turned to max?

You are overthinking this, I'm afraid. The goal is not to find the setting that will give you 20psi at redline. You are supposed to set the boost based on where it SPIKES. The boost always tapers due to the head outflowing the turbo. Please don't run that much boost on stock exhaust and tune, and please do not think that just adding Xylene gives you the proper octane needed to run that much boost. You are really flirting with danger and for no good reason...

11SECEVO

True you got a point, although like I said this is TRACK ONLY, and for the street I have it 95% Closed to keep the boost at the Stock 20PSI at 3000, which Tapers to 15 PSI at 5000-7000...ie., at the Track with ~98Octane I would think that 19PSI would be OK...you do have a point about the exhaust though, I really 'Should' Gut my Cat....I just HATE the dam noise!