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Old 03-13-2006, 02:47 PM   #1
underground-mpyre
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OMGHi2U Perrin pulley a good idea for a JDM STI EJ207?

That is what I might do next to my car, but is it a good idea for a JDM ej207. I believe there was balancing problems with the WRX's, could be hearsay. Any help please, good idea or bad idea?
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Old 03-13-2006, 05:24 PM   #2
Scoobie Steve
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Not so much a balance problem but the lack of a harmonic dampener. I wouldnt do it especailly on a high reving EJ207
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Old 03-13-2006, 05:37 PM   #3
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The use of the pulley as a harmonic dampener has been highly debated. If it helps any I put a lw pulley on my EJ20K. Can't complain.
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Old 03-13-2006, 06:23 PM   #4
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Thanks. I think I read only a five% gain, faster reving. But not a dampener sux. Any other opinions(those that have answered are valued).
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Old 03-13-2006, 09:37 PM   #5
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i vote for it not being an dampener its one of the very few easy ways to get more low down power
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Old 03-14-2006, 09:21 PM   #6
underground-mpyre
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What about a Perrin turbo inlet? Does it make any real gains, or just for show?
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Old 03-14-2006, 09:25 PM   #7
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A guy at perrin told me it's purely for show, any gains would be consequential.
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Old 03-21-2006, 09:11 PM   #8
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Bump for a turbo inlet a good idea or bad?
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Old 03-21-2006, 09:32 PM   #9
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Plus, I don't know about the EJ207, but on the Version 3 EJ20K the inlet hose (charge pipe) wouldn't fit over the maf pipe because it has a larger diameter than the USDM cars.
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Old 03-21-2006, 11:16 PM   #10
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Quote:
Originally Posted by Scoobie Steve
Not so much a balance problem but the lack of a harmonic dampener. I wouldnt do it especailly on a high reving EJ207
good advise here. id never run without a dampener.

and pretty much all intake stuff is for show.
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Old 03-26-2006, 01:27 PM   #11
underground-mpyre
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Thanx guys for the facts and opinions. Both do what I thought they did, just for sho'.
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