Which dump valve for my STi PPP 02?
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Which dump valve for my STi PPP 02?
Would a dump valve benefit my car performance wise, or is it just a different sound I will achieve, and if so, which one would you recommend? Thanks! Car is an 02 STi with PPP.
#2
I have the same car
I removed an aftermarket one and fitted back a brand new original part, the noise was getting on my nerves and Subaru said it would make no diffrence to the performance and they were correct, we have a much better dump valve on our cars than the original design / prior shape scooby
I removed an aftermarket one and fitted back a brand new original part, the noise was getting on my nerves and Subaru said it would make no diffrence to the performance and they were correct, we have a much better dump valve on our cars than the original design / prior shape scooby
Originally Posted by GREGGYG
Would a dump valve benefit my car performance wise, or is it just a different sound I will achieve, and if so, which one would you recommend? Thanks! Car is an 02 STi with PPP.
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Originally Posted by GREGGYG
Would a dump valve benefit my car performance wise, or is it just a different sound I will achieve, and if so, which one would you recommend? Thanks! Car is an 02 STi with PPP.
VTA (vent to atmosphere) dump valves give you a whoosh or whistle and no performance advantage. In fact they may give you a performance disadvantage as you are jettisoning metered air, meaning the mixture in the cylinders will be too rich for a short period after the air is vented.
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