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10-25-2007, 09:44 AM | #76 |
Scooby Guru
Member#: 32792
Join Date: Feb 2003
Chapter/Region:
NESIC
Location: lincoln, ri
Vehicle:2003 GGA MBP 12.9 / 105+ |
i like my streetlite and would not go back to oem weight, but you'd better be prepared for gear lash noise (aka deceleration noise).
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10-25-2007, 10:06 AM | #77 |
Scooby Newbie
Member#: 154119
Join Date: Jul 2007
Chapter/Region:
South East
Location: Gulf Coast, US
Vehicle:2002 WRX Wagon WR Blue/mud |
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11-03-2007, 03:02 PM | #78 |
Scooby Newbie
Member#: 69419
Join Date: Aug 2004
Chapter/Region:
South East
Location: Goldsboro, NC
Vehicle:04 WRX 2.5 hybrid VF34 WR Blue |
yeah, that decel noise is sometimes embarrassing. like when slowing down into town and the damn thing is grinding like a chainsaw. i dont mind it really myself, but my wife always comments on it. i just say "it's a race clutch, baby, their supposed to sound like that." ...then i get that look.
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11-09-2007, 01:31 PM | #79 |
Scooby Specialist
Member#: 91875
Join Date: Jul 2005
Chapter/Region:
AKIC
Location: A-town!
Vehicle:91 legacy TD04 04 WRB/carbon fibre STI |
figured I'd bump it. We should have this stickied.
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11-10-2007, 09:54 AM | #80 |
Scooby Newbie
Member#: 161437
Join Date: Oct 2007
Chapter/Region:
MWSOC
Location: SE, Michigan
Vehicle:02 WRX Wagon EJ207 |
I have an 02 WRX with 96K on it. I believe the stock clutch. It is starting to chatter when it engages. It also engages high up, not mid way in the pedal throw. I haven't noticed any slippage.
I plan to do TBE and tune next summer but for now its all stock. Would a stock replacement do the trick? or is there a cheap alternative? |
12-13-2007, 02:34 PM | #81 | |
Scooby Specialist
Member#: 28650
Join Date: Nov 2002
Chapter/Region:
TXIC
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Quote:
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12-16-2007, 12:44 AM | #82 | |
Scooby Newbie
Member#: 100437
Join Date: Nov 2005
Location: pittsburgh, pa
Vehicle:2002 wrx wagon cobb stg 2, PPGs, wrb |
Quote:
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12-16-2007, 02:10 AM | #83 |
Scooby Specialist
Member#: 28650
Join Date: Nov 2002
Chapter/Region:
TXIC
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not in the sense that it will damage them, but you've got metal gears meshing and any additional vibrations will increase wear on those parts.
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01-15-2008, 12:11 PM | #84 |
Scooby Specialist
Member#: 125304
Join Date: Sep 2006
Location: Crawford, TX.
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lightweight flywheel cels
I noticed when we were assembling a sti 2.5 with cosworth cams and stiffer springs how much harder the driver side intake cam was to turn to time up. I wonder if the 04 usdm sti has stiffer stock springs than the wrx and if this might make the gears jump around less and it's that instead of the double cam sensors? Has anyone with stiffer springs in the wrx heads also had cels from a lighter flywheel. I think lighter flywheels are a great bang for the buck but my experience is with engines with more torque than what the lower hp. subies have. I do know the antique vw motors I have played with even benefit from lighter flywheels. Most of my applications were in cars that were quite a bit lighter than stock also.
I wonder if a limiting device on the belt tensioner could also improve cam timing? One more thing. Most of the clutch disks I have replaced in other cars had the disk springs collapsed or loose. Is this pretty common in subies? Charliew Last edited by charliew; 01-15-2008 at 12:16 PM. |
03-01-2008, 06:41 AM | #85 |
Scooby Newbie
Member#: 116499
Join Date: Jun 2006
Chapter/Region:
South East
Location: Fayetteville NC
Vehicle:2005 WRX STi Black when clean |
Never mind found what I needed
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03-04-2008, 01:12 PM | #86 |
Scooby Newbie
Member#: 61432
Join Date: May 2004
Location: Raleigh, NC
Vehicle:1997 Impreza Sport Green |
Unabomber,
Thanks for the very clear information. Now I am looking forward to this job. I have worked on cars, including race cars, since the early 60"s. I just finished removing, rebuilding, and reinstalling the engine in my 1 ton van, alone. This Subaru is my first OBD-2, and my first all wheel drive car, so I don't want to mess it up. It only has 170K miles and I am looking forward to many more. Tom Bishop [email protected] www.artatspeed.org |
04-02-2008, 05:02 AM | #87 |
Scooby Newbie
Member#: 176154
Join Date: Mar 2008
Chapter/Region:
RMIC
Vehicle:2004 WRX Blue |
This clutch ish is a mystery to me. I noticed tonight, putting some miles on the new springs that my clutch is slipping, especially under heavy loads. I'm shooting for 300/300 at the wheels by the end of may with parts on the way. I would like more "mild" than "wild." This will be my daily driver, although, I only use a car 12 days out of the month. Any recommendations or advice would be appreciated!
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04-02-2008, 10:42 AM | #88 |
Big Ron
Super Moderator Member#: 18062
Join Date: Apr 2002
Chapter/Region:
MAIC
Location: I can save you a ton of cash
Vehicle:on car parts so PM me b4 j00 buy |
All the advice you need is in the first post. Find a clutch that holds at least 300TQ and buy that heap....it's really that simple. Just don't get one crazy stronger than your projected TQ.
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04-30-2008, 11:46 PM | #89 |
Scooby Newbie
Member#: 178898
Join Date: Apr 2008
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why does it say you should use careful consideration before using some types of clutches?
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04-30-2008, 11:47 PM | #90 |
Scooby Newbie
Member#: 178898
Join Date: Apr 2008
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sorry if the question was already answered, i couldnt find it.
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04-30-2008, 11:51 PM | #91 | |
Scooby Specialist
Member#: 28650
Join Date: Nov 2002
Chapter/Region:
TXIC
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Quote:
I'm not sure what you're asking. But in general, any increase in a clutch's ability to hold power comes with drawbacks of some kind, either in longevity, harshness, cost, or engagement. So in that respect, you need to carefully consider what your goals are and how much you want to trade. |
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05-12-2008, 06:03 PM | #92 |
Scooby Newbie
Member#: 179821
Join Date: May 2008
Vehicle:2002 WRX Silver |
Has anyone solved the flywheel CEL issue yet?
This is a fantastic post. Six years old and still totally applicable.
Has anyone figured how to stop the misfire error from popping the CEL? It's been happening for 7 years so I'm hoping someone smarter than me has figured it out but I don't see it anywhere. |
06-30-2008, 01:07 AM | #93 |
Scooby Specialist
Member#: 166820
Join Date: Dec 2007
Chapter/Region:
MAIC
Location: say halo to
Vehicle:my ignore list |
Unabomber, just as I get to where I'm rolling my eyes at some of your replies on various threads I find a great thread like this. You managed to answer my clutch questions before I even asked them. Thanks! If I ever make it back to Norfolk I'll get ya an Aventinus at the Bier Garden.
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11-19-2008, 11:18 AM | #94 |
Scooby Newbie
Member#: 194742
Join Date: Nov 2008
Chapter/Region:
E. Canada
Location: Waterloo
Vehicle:1993 Impreza WRX JDM Silver |
Would anyone know the Step (or I guess in scoobie's case Cup) spec for the EJ20G?
I think having those specs would be very valuable in this FAQ |
01-26-2009, 12:48 PM | #95 |
Scooby Newbie
Member#: 191076
Join Date: Oct 2008
Chapter/Region:
South East
Location: charleston,sc
Vehicle:2004 STI Java Blk Pearl Stg2 + |
this thread is awesome help! Great Job Unabomber!!!
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02-06-2009, 07:25 AM | #96 |
Scooby Newbie
Member#: 155997
Join Date: Aug 2007
Chapter/Region:
Tri-State
Location: Wilmington, DE
Vehicle:2005 OBP WRX STI EFR 7163, 93 + Meth |
FW weight versus moment of inertia
I have always been curious about this...
I would think that rating flywheels in terms of total weight would be superfluous because the critical function of the flywheel is to hold angular momentum via its property of rotational inertia at given rpm's. If the rotational inertia of a rotating body is ultimately determined by the weight distribution away from the axis of rotation, then a 9 lb. flywheel with the weight concentrated near the outer edge of the FW could have the same inertial properties as a 14 lb. flywheel with the weight concentrated near the center of the flywheel. Is this reasoning not correct? Please correct me if I am wrong. |
02-06-2009, 07:54 AM | #97 |
Scooby Guru
Member#: 32792
Join Date: Feb 2003
Chapter/Region:
NESIC
Location: lincoln, ri
Vehicle:2003 GGA MBP 12.9 / 105+ |
it's perfectly correct.
however, describing flywheels in terms of newton metre seconds is probably not going to be very useful to the vast majority of those buying flywheels. |
02-24-2009, 12:19 PM | #98 |
Scooby Newbie
Member#: 150593
Join Date: Jun 2007
Chapter/Region:
NESIC
Location: Boston Metro, MA
Vehicle:2004 Impreza WRX JDM V7 Sti |
judder in first
Well been having some issues with my 2004 WRX studdering coming out of first gear only and its intermittent. Tried swapping Maf's out and cleaning them as well as IACV cleaning and fuel filter and no luck. So pretty sure the clutch is chattering going from a stop to start. No other slippage at all though.
I have stage one and may go to stage 2, would the exedy 15802 be good or should I go the 15950? How much are the exedy's roughly? Also does anyone know about these company (Competition clutch?) http://forums.nasioc.com/forums/show...004+wrx+clutch Their street kevlar set up looks nice. |
02-24-2009, 12:55 PM | #99 |
Big Ron
Super Moderator Member#: 18062
Join Date: Apr 2002
Chapter/Region:
MAIC
Location: I can save you a ton of cash
Vehicle:on car parts so PM me b4 j00 buy |
READ the thread bro...this isn't a question dumping ground. The thread has all the info you need. This is not the cost forum nor do we have one, the vendor for sale forum is where to find pricing. I am currently email chatting with Competition Clutch and they actually answer email which is damned amazing. I'm going to edit my clutch TQ list in the next hour if my internet holds up. If you want real CC info, use the search feature in this forum and the car parts review forum, but a clutch is a clutch really.
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02-25-2009, 03:25 PM | #100 | |
Scooby Newbie
Member#: 150593
Join Date: Jun 2007
Chapter/Region:
NESIC
Location: Boston Metro, MA
Vehicle:2004 Impreza WRX JDM V7 Sti |
Resurfacing the oem flywheel?
Quote:
Good to see Competition Clutch responded back and gave you some numbers to be able to work with. Probably a good omen for them being a decent company then being forthright like that no? Also what about adding to the FAQ about resurfacing the OEM flywheel? I have been searching the forums and most say you can resurface the OEM flywheel no problem.....but some say you can't, as well as Subaru, and the Subaru dealership I take my car to. Are there significant pluses and minuses to both/is it really ok to resurface the oem flywheel? As always thanks for the info. |
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