i just installed my mbc and my car wont boost pass 15 when i turn it more wont boost more then 15 and when i turn it down wont boost less then 15 whats going on help gotta race tonight

 

did you hook it up right?

We need more info

 

it's not installed right. sounds like you're running off the wastegate. what mbc?

 

Sounds like it is hooked up backwards.

 

Defintetly hooked up backwards, same thing happened with my friends daytona.

 

There should be something in the boost controler manual, but this is the jsut of how it should be hooked up. Rember to put the source and Actuator in the right lines.





images from GCG Turbochargers http://www.gcg.com.au/Technical%20Da...hnicaldata.htm

 

i have a line from actuater straight to mbc and a t fitting between wastegate and intake manifold with a line running to mbc

 

^ ok I am a little confused from your last post. But basically you need to find out which nipple on the MBC goes to the source and which goes to the actuator. Then you plug the hole on the bottom of your MAF pipe. And remove that whole t setup you have. And leave the Stock BCS plugged in but just run a short vacuum line in a u so both sides of the stock solenoid are connected to each other. Then Mount your MBC in the Area of the stock BCS. Leave it easily accessible, but make sure it isn't gonna flop around. Then Run the Source line to the Open nipple on the turbo, actually it should be a pipe directly connected to the turbo. And the Actuator line to the Wastegate actuator. set the Boost controler for stock boost, or completely open / no vent. Then make sure you have an accurate boost meter, and start turning it up until you are statisfied with your boost level. I would reccomend only runnling like 20 - 21 pounds on 91 octane.

 

Here follow this..



hope this helps you

 

^ sorry thats wrong.

What happens is when you let off the throtle the Wastegate will shut causing damage to the turbocharger.

 

Youll need a line from your Turbo nipple/or T the BOV line to the MBC and a line to your Wategate Accuator. That top diagaram is a little hard to look at if you dont know what you looking for.

Check the install in the How To Section

 

how do you figure

 

Its really not wrong it does work fine. Ive have had it both ways with no difference in driveability or boost. Most will tell you to source the Turbo nipple and I agree but it works just fine T'ing the BOV line.

 

Not true

 

also it slows the reaction time of the bov. and you want to keep lines such as the BOV line and boost control lines as short as possible. If you have an Anti-lag setup you want the wastegate shut when the throttle plate is shut. But if you don't have ALS there is no reason to have it connected there. Plus its just kinda dumb. And puts added wear on the turbo.