waste gate porting and overboosting and boost creep

leggman86 · 07-22-2008, 12:50 PM

hi i'm an 05 sti owner. my querstion is i'm interested in geting high flowing headers and a high flow proformance exgaust system with high flow cat and a high flow intake. but i have learned that indoing so sti's have over over boosting issues and boost creep issues that
arise after proformance intakes and exaust have been installed with high flow, and the waste gates can't bypass enough hot gasses around the turbo to keep boost down to where its supose to be, or at a safe level. my Question is . how do you know how much to port the waste gate to solve the problem and will over porting reduce my boost pressures and reduce power. how mush should i port to solve the problem?

subysti5486 · 07-22-2008, 01:54 PM

youre in the wrong section. try asking in engine, power and performance

**elirentz** · 07-27-2008, 02:19 PM

^+1 not to be an jerk but this is the pro motorsports section.

07-22-2008, 12:50 PM	#1
leggman86 Amateur STI Driver Car: BLUE 05 STI Fav Mod: HELLA FOG LIGHTS Location: WASHINGTON, NJ Posts: 10 IWSTI Addict since: May 2008 Trader Rating: (0)	waste gate porting and overboosting and boost creep hi i'm an 05 sti owner. my querstion is i'm interested in geting high flowing headers and a high flow proformance exgaust system with high flow cat and a high flow intake. but i have learned that indoing so sti's have over over boosting issues and boost creep issues that arise after proformance intakes and exaust have been installed with high flow, and the waste gates can't bypass enough hot gasses around the turbo to keep boost down to where its supose to be, or at a safe level. my Question is . how do you know how much to port the waste gate to solve the problem and will over porting reduce my boost pressures and reduce power. how mush should i port to solve the problem? This ad is not endorsed by this member. Please register or login to hide this ad.

07-22-2008, 01:54 PM	#2
subysti5486 Junior STI Driver Car: wrb 05 sti Fav Mod: my future DOM III+ METH Location: tulsa, ok Posts: 179 IWSTI Addict since: Nov 2007 Trader Rating: (0)	Re: waste gate porting and overboosting and boost creep youre in the wrong section. try asking in engine, power and performance

07-27-2008, 02:19 PM	#3
elirentz Gold Member Car: 05 STi, 87 325e Fav Mod: ohlins w/RCE springs, sz55 Location: charleston Posts: 566 IWSTI Addict since: Nov 2005 Trader Rating: (1)	Re: waste gate porting and overboosting and boost creep ^+1 not to be an jerk but this is the pro motorsports section. This ad is not endorsed by this member. Please register or login to hide this ad.

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