Where do you get "stuck at 16 lbs of boost?"
When I removed the cat and stock exhaust,my boost went to 19 lbs. (up from 17 lbs) and I had to install an adjustable wastegate to get it back to 17 lbs.
I didnt see a scanmaster or knock gauge on your list of mods in your sig. If you dont have one.. careful.. its the first thing I put on all my customers cars. I refuse to work on one of these cars unless a scanmaster, power logger, direct scan, etc is on the car. Mashing the pedal blind = guaranteed blown motor.
You can get 24+ PSI out of your turbo. Easy just crank the wastegate rod in and bleed of the boost.. or yank the hose of the compressor..
The 16 psi number comes from looking at a knock gauge. If you run the motor at boost levels above whats supported by the octane you have.. the engine will knock and hammer out the bearings, blow the head gaskets, split the block, crack the crank, etc. Tuning rule #1 on a Buick is tune for zero knock. Some cars its 15 psi on pump gas.. some 17 psi.. some even 20 psi.. every car is different.. fueling and timing play a role in this number.
If you open the exhaust.. do an airfilter.. downpipe.. larger IC.. the boost goes up.. but it doesnt mean that it doesnt knock when the boost goes up.
Thats why octane is the number 1 thing with these turbo motors. Its what limits power. I wouldnt change an IC on a Buick motor until the car was well into the 11's. Slower than that its a waste. Dont ask how I know this.
The Dutt neck to me doesnt look stock. So that arguement doesnt hold water. Neither does a K&N or 3 inch DP.. But hey if putting a Dutt neck IC on your motor makes you happy.. its money well spent. What the hell.. its only money
Post up your track results after the change in MPH=power
