adjustable boost on the fly
 

hey guys is there some switch that could be rigged up to lower boost? like if i had my system tuned for like 12 psi but i wanted to detune it for if my buddy was gonna barrow my car (hypotheticaly) like could you have a servo on the waste gate to make it open earlier? would the fuel system recover, or are u just stuck with hi boost (oh darn :) ) come to think of it it would probably save on gas cause you wouldn't have to run such a rick ratio... anythoughts?

it's called an electronic boost controller.

You can make your own with 2 boost settings. All you need is a 12v nematic solenoid with 2 mbc's. Hook it up to a switch and your all set.

This is the simplest route... but with 1 MBC. His 1 setting can be the stock internal/external WG rate... and then mbc can be his other boost setting.

I have mine set up with a high/low switch. I feed the vac/pressure line to a solenoid that normally lets the flow go to the wastegate(8psi). For higher pressure, it feeds to a Hallman and then to the wastegate(15psi). The switch is a toggle next to the parking brake.

you could use some nylon tubing to move your MBC inside the cabin. Never tried it but I think that'd work.

Nylon tubing is a pretty small diameter plus it doesnt expand, making useage over long distances feasible.

cool guys thanks, i knew there was some way to do it, i just didn't know how.

There is also the $200 Tullos Technology EBC as an option, it uses the GM boost solenoid.