New Hawkeye STI type UK PPP owner - question
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New Hawkeye STI type UK PPP owner - question
Hi
I bought my hawkeye STI type UK PPP last week. Loving it more each day! I have a question, can you normally hear the standard "blow off" valve when you change gear on a standard / un-modified PPP? It's not very loud but there is a definite hiss in the background when you accelerate hard and change gear. I always thought the standard blow off valve was re-circulating (meaning it would be silent) as opposed to one that dumps the pressure to the "atmosphere"? This is my first impreza so am still learning I bought the car at a main dealer and was assured it was all standard (other than the PPP).
Thanks for any info.
Matt
I bought my hawkeye STI type UK PPP last week. Loving it more each day! I have a question, can you normally hear the standard "blow off" valve when you change gear on a standard / un-modified PPP? It's not very loud but there is a definite hiss in the background when you accelerate hard and change gear. I always thought the standard blow off valve was re-circulating (meaning it would be silent) as opposed to one that dumps the pressure to the "atmosphere"? This is my first impreza so am still learning I bought the car at a main dealer and was assured it was all standard (other than the PPP).
Thanks for any info.
Matt
#2
Hi
I bought my hawkeye STI type UK PPP last week. Loving it more each day! I have a question, can you normally hear the standard "blow off" valve when you change gear on a standard / un-modified PPP? It's not very loud but there is a definite hiss in the background when you accelerate hard and change gear. I always thought the standard blow off valve was re-circulating (meaning it would be silent) as opposed to one that dumps the pressure to the "atmosphere"? This is my first impreza so am still learning I bought the car at a main dealer and was assured it was all standard (other than the PPP).
Thanks for any info.
Matt
I bought my hawkeye STI type UK PPP last week. Loving it more each day! I have a question, can you normally hear the standard "blow off" valve when you change gear on a standard / un-modified PPP? It's not very loud but there is a definite hiss in the background when you accelerate hard and change gear. I always thought the standard blow off valve was re-circulating (meaning it would be silent) as opposed to one that dumps the pressure to the "atmosphere"? This is my first impreza so am still learning I bought the car at a main dealer and was assured it was all standard (other than the PPP).
Thanks for any info.
Matt
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I have the non PPP version for yours, and have the same sound with mine. As mentioned above, its nowhere near as loud as a vent to air DV, but is noticeable if you are listening for it.
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Hi Matt nice choice of car
Mods like that need to be disclosed to your insurance company.you could upload a picture of your engine bay we will then know if its standard or not
Mods like that need to be disclosed to your insurance company.you could upload a picture of your engine bay we will then know if its standard or not
#9
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Yup hear it as well. Driven a uk sti sedan and hatch as well as a spec c. Hear it on all 3. Spec C being the most prominent probably due to the stingy insulation and thin windows.
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