Perrin pulley a good idea for a JDM STI EJ207?

underground-mpyre · 03-13-2006, 02:47 PM

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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Scoobie Steve · 03-13-2006, 05:24 PM

Not so much a balance problem but the lack of a harmonic dampener. I wouldnt do it especailly on a high reving EJ207

Lachlan · 03-13-2006, 05:37 PM

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.

underground-mpyre · 03-13-2006, 06:23 PM

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).

Jaxx · 03-13-2006, 09:37 PM

i vote for it not being an dampener its one of the very few easy ways to get more low down power

underground-mpyre · 03-14-2006, 09:21 PM

What about a Perrin turbo inlet? Does it make any real gains, or just for show?

Lachlan · 03-14-2006, 09:25 PM

A guy at perrin told me it's purely for show, any gains would be consequential.

underground-mpyre · 03-21-2006, 09:11 PM

Bump for a turbo inlet a good idea or bad?

Lachlan · 03-21-2006, 09:32 PM

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.

Hurley 2.5 WRS · 03-21-2006, 11:16 PM

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.

underground-mpyre · 03-26-2006, 01:27 PM

Thanx guys for the facts and opinions. Both do what I thought they did, just for sho'.

03-13-2006, 02:47 PM	#1
underground-mpyre Scooby Specialist Member#: 30351 Join Date: Nov 2002 Location: Indianapolis Vehicle: 1999 GC8 STI V7 6spd Silver Coupe	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? * Registered users of the site do not see these ads.

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03-13-2006, 05:24 PM	#2
Scoobie Steve Scooby Specialist Member#: 2289 Join Date: Sep 2000 Chapter/Region: Tri-State Location: Bangor, PA Vehicle: 1998 11.87@112mph Subaru L Ver 6 STi Type R	Not so much a balance problem but the lack of a harmonic dampener. I wouldnt do it especailly on a high reving EJ207

03-13-2006, 05:37 PM	#3
Lachlan Scooby Specialist Member#: 19470 Join Date: May 2002 Chapter/Region: SWIC Location: albuquerque, NM Vehicle: 1981 Brat GL Blue	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.

03-13-2006, 06:23 PM	#4
underground-mpyre Scooby Specialist Member#: 30351 Join Date: Nov 2002 Location: Indianapolis Vehicle: 1999 GC8 STI V7 6spd Silver Coupe	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).

03-13-2006, 09:37 PM	#5
Jaxx NASIOC Supporter Member#: 177 Join Date: Aug 1999 Chapter/Region: NWIC Location: Boise,Idaho,USA Vehicle: The 93 Imp W/EJ20K flat black	i vote for it not being an dampener its one of the very few easy ways to get more low down power

03-14-2006, 09:21 PM	#6
underground-mpyre Scooby Specialist Member#: 30351 Join Date: Nov 2002 Location: Indianapolis Vehicle: 1999 GC8 STI V7 6spd Silver Coupe	What about a Perrin turbo inlet? Does it make any real gains, or just for show?

03-14-2006, 09:25 PM	#7
Lachlan Scooby Specialist Member#: 19470 Join Date: May 2002 Chapter/Region: SWIC Location: albuquerque, NM Vehicle: 1981 Brat GL Blue	A guy at perrin told me it's purely for show, any gains would be consequential.

03-21-2006, 09:11 PM	#8
underground-mpyre Scooby Specialist Member#: 30351 Join Date: Nov 2002 Location: Indianapolis Vehicle: 1999 GC8 STI V7 6spd Silver Coupe	Bump for a turbo inlet a good idea or bad?

03-21-2006, 09:32 PM	#9
Lachlan Scooby Specialist Member#: 19470 Join Date: May 2002 Chapter/Region: SWIC Location: albuquerque, NM Vehicle: 1981 Brat GL Blue	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.

03-26-2006, 01:27 PM	#11
underground-mpyre Scooby Specialist Member#: 30351 Join Date: Nov 2002 Location: Indianapolis Vehicle: 1999 GC8 STI V7 6spd Silver Coupe	Thanx guys for the facts and opinions. Both do what I thought they did, just for sho'.