I know I'll probably get flamed for this, but what the hey!!!

I have searched, and searched but I can not find a definition of what is boost creep. Every post speak of it as if it is a bad thing, which is ok, but under what conditions will a fc suffer from this malady. I was thinking about getting a Borla exhaust, but heard that BC may be a problem with going to the borla setup.

So, oh wise and sometimes flamethrower toting forum members.....



WHAT IS BOOST CREEP?

 

Boost creep is a rise in boost due to not enough exhaust bypassing the housing. For example, you're set for 11 psi, and when you floor it, you get a quick rise to 11 or 12 psi. But then as rpm's climb, the boost creeps higher and higher: 12, 13, 14,15 etc. Enlargening the wastegate hole is one cure for boost creep.

If your considering putting a Borla cat back system on, you'll have no problem, until you start eliminating converters, or larger dp.

 

Ok, so my next question is what is the stock DP size? , and if you go with a larger DP how do you prevent the creep?

Thanks

 

Bigger wastegate.

 

It's the only solution.

 

umm.. wouldn't turbine wheel clipping also be an option?

 

whats so bad about boost creep..? i dont see whats so bad... but im just an N/A guy lol

 

well if the boost keeps creeping then....BOOM...or shall i say pop goes the rotory

 

oh gotcha. i didnt think it would get that bad to do that kind of damage.

 

not enough fuel to match the amount of boost.

 

Would you seriously consider clipping the turbine (which increases lag) instead of porting the wastegate (which has no negative effects)? I really hope not...

 

Clipping the wheel is pointless and expensive. It costs virtually nothing to port the wastegate. I ported my s5 turbo and with a 3" intake and 3" turbo back exhaust its absolutely rock solid at the .5bar i set it at. I can floor it in 5th gear and the boost needle on my greddy gauge will not move from .5bar. Just rip off the turbo and port it, its a weekend project if you've never removed the turbo.