Boost crazy help

[jaymieEP70]

whats happen lads... got some scare today i nearly kacked my shorts.. i was driving home today and seen as i was on the main road i decided to floor it,, but just as i sank the boot the boost shot up to 1.5 bar and then pop, the intercooler pipe came away from the intake mani.. not a prob as i just put it back, but what the fuck could of caused the boost to shoot up that far and that quick too..

 

[alanep70]

This post might help
http:www.toyotagtturbo.com/forums/showthread.php?t=7226

 

[ruggiero06]

This post might help
http:www.toyotagtturbo.com/forums/showthread.php?t=7226

x2

boost creep for sure...get that sorted or next time it might be a piston or rod that goes pop and not intercooler piping

 

[jaymieEP70]

thanks fellas, i didnt think creep was that aggresive, this all happened in like 3 seconds, thanks for the input

 

[TomS]

What mods do you have mate?

 

[jaymieEP70]

What mods do you have mate?

well i have a decat, s/s mani full blitz nur spec, relocated filter, fmic, hks actuator, and jam ecu. it was fine earlier on in day.

 

[TomS]

What boost are you running?

 

[jaymieEP70]

i have it set to .7

 

[TomS]

With that set up you will be some getting creep, but 0.8 bar of creep seems excessive, have you checked the vac pipe on the actuator? if that came off the car would boost indefinitely, it's all i can think of

 

[jaymieEP70]

With that set up you will be some getting creep, but 0.8 bar of creep seems excessive, have you checked the vac pipe on the actuator? if that came off the car would boost indefinitely, it's all i can think of

i checked my actuator and all semmed well, i cant understand it either i assumed boost creep was a not as severe as that, this was very eratic and quick,.

 

[dac69er]

your intercooler pipe popping off probably saved your engine mate. you were lucky

all i can think is try it again, but keep an eye on your boost gauge and see exactly what happens. if the boost goes too high, back off the throttle.

could just be a strange one off.

 

[Jonny-GTTuning]

Look for split vac pipes and intercooler pipes, a pin hole can even cause a serious leak ive found from experience!

Spray a drop of carb or brake cleaner round all the vac/cooler pipes if there is a leak the engine revs will rise.

Jonny

 

[jaymieEP70]

your intercooler pipe popping off probably saved your engine mate. you were lucky

all i can think is try it again, but keep an eye on your boost gauge and see exactly what happens. if the boost goes too high, back off the throttle.

could just be a strange one off.

no prob, i will be watching next time for sure, it just happened so fast ya know, well thank fuck for cheap jubilee clips so

 

[jaymieEP70]

Look for split vac pipes and intercooler pipes, a pin hole can even cause a serious leak ive found from experience!

Spray a drop of carb or brake cleaner round all the vac/cooler pipes if there is a leak the engine revs will rise.

Jonny

thanks man, that seems like a handy bit of info.. my joiners are not the best tbh