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Old 12-12-2001, 03:06 AM   #1
Scooby Specialist
Member#: 4980
Join Date: Mar 2001
Location: Albuquerque, NM USA
Default AP group N clutch for WRX and BPM flywheel a match made in heaven!

Well, today was the big clutch install day.

After i ran my 12.3 pass, i knew i needed to make an investment in a good clutch because the stock one was shot. I must say a few very kind words to the stock subaru clutch. The feel was great, and it lasted an awesome 51 drag passes before it decided it didn't want to hold the power my WRX is making. I would really recomend that people put off the upgrade as long as you can because the stock unit is quite nice unless i just managed to get a super-clutch from the factory.

Anyway after dealing with some of the best people in the world for WRX modifications, Adam at z1 auto in NY said he might have exactly what i was looking for.

My criteria was

Full face disk, sprung hub, and one that could be slipped out of the hole without locking up too harsh, but that would still hold the power i am making and a good deal more.

I have had a BPM flywheel that i got from mike at exeter subaru for quite a while, but was waiting for the right clutch to install it with.

Adam made some calls and sourced me a clutch from AP. Its their group N rally clutch.

Fast forward a week or so from when i ordered it, and it finally shows up at my office. The disk looks good, its almost all organic, but there is a little bit of copper in it. The pressure plate looks nice and heavy duty, and the whole unit looks very well built.

A quick check shows that it fits my BPM flywheel perfectly, and i stash it in my office for a bit while i try to find time to get it on the car.

Today was the day!

Initial driving impressions are quite good. The flywheel is lite, but not so much so that you are going to stall the car all the time. Just takes a bit of getting used to the way the motor seems to rev now. Just a little blip will get the revs going where as before the response time was very slow.

The clutch feel is light... not at all like most of the ACT 2600 type clutches that i have driven. You do not need a huge calf to drive this thing... This was a nice suprise. I had expected the clutch to be heavy, but that was not the case at all.

You can slip this clutch taking off from a dead stop no problem. I even tested the clutch by just holding the car on level ground and slowly letting it out the clutch while giving NO gas... the car did not stall, it just started creaping forward. Nice sign!

I then did some WOT in gear pulls, and the cluch holds the power awesome. The flywheel lets the car rev much quicker, and as a result, it seems boost comes on quicker (even though its the same RPM range, you just get there quicker). Up top, the car pulls very smooth all the way to redline. It almost feels as if i put my car on a diet and now that some of the fat has been trimmed away its ready to run.

I'll have to wait for lunching and hard shifting tests as you need to break in the clutch a bit before that, but i am quite confident that this will be a very good solution for the WRX guys.

you can get the flywheel from Mike at exeter subaru (877-782-2789) or Adam at Z1 (631-254-8277)

You can get the clutch from Adam (631-254-8277)

Both of these guys are top notch, and provided me with great service and advice.

Big thanks go out to Adam as the clutch is right on the money what he said it would be.

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Old 12-12-2001, 09:00 AM   #2
Scooby Specialist
Member#: 8943
Join Date: Aug 2001
Chapter/Region: TXIC
Location: San Marcos, TX
2006 MINI + Corvette
Both Blue


Thanks for the post. Many of us are at that point where we know we need to figure out what to do in this area. GoodFinder
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Old 12-12-2001, 12:53 PM   #3
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Member#: 6124
Join Date: Apr 2001
Chapter/Region: MWSOC
Location: Glendale Hts, IL, USA
2000 NFR AP1 S2000
'07 Honda FIT sport (5MT)


Good deal dude! Rip it up next spring!

Hey... remember if you decide to lose the 550's let me know, I'm looking for stuff for the wife's car (white wagon hehe)

Jorge (RiftsWRX)
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Old 12-12-2001, 12:53 PM   #4
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Member#: 4980
Join Date: Mar 2001
Location: Albuquerque, NM USA

Originally posted by RiftsWRX
Good deal dude! Rip it up next spring!

Hey... remember if you decide to lose the 550's let me know, I'm looking for stuff for the wife's car (white wagon hehe)

Jorge (RiftsWRX)
I am waiting for some 660cc injectors right now. I'll let you know when i get them.

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Old 12-13-2001, 01:07 AM   #5
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Member#: 2473
Join Date: Sep 2000
Location: Orleans/Ottawa, Canada
2002 WRX
World Rally Blue

Default $$$?

Hey nmyeti, thanks for the review!
I'm in the market for a similar setup, how much for the whole thing? Clutch/Flywheel? Did you keep the stock release bearing?



Last edited by mturmel; 12-13-2001 at 01:12 AM.
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Old 12-14-2001, 07:12 PM   #6
Scooby Specialist
Member#: 4980
Join Date: Mar 2001
Location: Albuquerque, NM USA

I am sorry i didn't post back on this a bit quicker.

Adam told me was going to jump in here and answer the cost questions. I don't want to set his price for him, as my clutch was the frist one he had brought in and as such got a bit of a "here try this price"

Anyway i made the mistake of buying a new release bearing from subaru... OUCH! that thing was expensive! We are talking list of like $170 here...

Anyway after a few more days on the clutch, i am very, very happy with this unit and think it may well be one of the better setups for the WRX owner who wants more holding from their clutch, but does not want a whole lot more shock on the gearbox.

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Old 12-19-2001, 12:07 PM   #7
Z1 Performance
Former Vendor
Member#: 9327
Join Date: Aug 2001
Location: Z1Auto.com

Hey guys - sorry for the delay, but it took a few days to get all the pricing details and availability set! This clutch set up is now availabel ready to ship. Price for the complete setup with TO bearing and the BPM lightweight flywheel $1265.00 plus shipping. Pricey yes, but per Nathan, it offers remarkable holding capacity with smoother than stock engagement and pedal feel.

By comaprison I had the opportunity to drive a WRX last night from one of our customers with the Cusco single disk clutch and lightweight flywheel. While the combo perfiormed well, it is quite a harsh engagement and doesn't liked to be slipped. probably an excellent road race setup though.

Any questions or to place an order for the AP Group N setup, just call us at (631)254-8277 or email at [email protected]

Thank you


edited for pricing change!!
Z-1 Performance

Last edited by Z1 Performance; 12-20-2001 at 08:17 PM.
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