|
|
|
|
|
|
BMW Garage | BMW Meets | Register | Today's Posts | Search |
|
BMW 3-Series (E90 E92) Forum
>
Clutch Advice
|
|
View Poll Results: Which clutch would you choose? | |||
ACT Street | 8 | 22.86% | |
SPEC Stage 2 | 27 | 77.14% | |
Voters: 35. You may not vote on this poll |
|
Thread Tools | Search this Thread |
12-12-2012, 05:12 PM | #1 |
Lieutenant Colonel
242
Rep 1,857
Posts |
Clutch Advice
I'm currently in the market for a new clutch. My OEM clutch is starting to slip with about 56k miles on the clock. I recently dynoed at 450whp / 480wtq on an e85 blend. I don't plan on any more performance mods.
I've done lots of searching and have narrowed my options to the following two clutches. ACT street or SPEC 2. I have seen mixed reviews for both. Please help me decide. I would like the clutch pedal to feel as close to stock as possible. Thanks!
__________________
|
12-12-2012, 05:16 PM | #2 |
3455
Rep 79,211
Posts
Drives: C6 Z06, 09 335i, 10 335xi
Join Date: Dec 2008
Location: www.TopGearSolutions.com
|
I'm going to let users who have tried either chime in. From our experience offering both and selling a lot of them lately; we are moving more Spec Clutches then ACT. The ACT has a low pedal feel, definitely stiffer then stock.
The Spec stage 2 tends to feel a bit more linear but naturally any aftermarket clutch will feel stiffer then stock. On paper the ACT is just barely enough to hold that sort of torque rating. If you look on Spec's site they have their torque ratings at that is the most important basis of purchasing a clutch. If you want a stock pedal feel, you must stick with the OEM clutch. Realize that the oem clutch is pretty stout but the pressure plate doesn't have enough bite. That stiff pressure plate on the aftermarket clutches is what is going to give that stiff pedal feel among other factors too. If anyone has experienced anything different then what I mentioned above please feel free to go over your experiences. This is just the feedback I've been told by some of my customers. |
Appreciate
0
|
12-12-2012, 05:35 PM | #4 |
Captain
53
Rep 748
Posts |
Spec 2+ with stock dual mass flywheel to eliminate chatter.
__________________
2008 335I E92, AW, VFF700, 18" Forgestar F14, M3 front/side, M-tech rear, AMS IC, H&R Touring Cup Kit suspension, HID AE, ER Charge Pipe & Synapse BOV, CIC Retrofit, Quafie, DSS, Defiv Lockdown, SPEC 2+/Steel SMFW, Walbro 450
|
Appreciate
0
|
12-12-2012, 10:25 PM | #5 |
Reborn
89
Rep 1,217
Posts |
|
Appreciate
0
|
12-13-2012, 01:39 AM | #7 |
1756
Rep 17,960
Posts
Drives: A Lot
Join Date: Sep 2006
Location: SF Bay, CA
iTrader: (0)
Garage List 2018 Ducati Panigal ... [0.00]
2016 Mazda CX5 [0.00] 2017 Aprilia Tuono ... [0.00] 2019 BMW M2 Competi ... [0.00] 2015 BMW M5 Competi ... [10.00] 2016 Ducati XDiavel S [0.00] 2016 AMG GT S [0.00] 2011 Ferrari 458 It ... [0.00] 2017 Charger Hellcat [0.00] 2015 KTM Super Duke ... [0.00] 2016 KTM RC390 [0.00] |
Noticeably stiffer than stock. But it doesn't engage at the floor which makes it far more drivable than you would expect. The ACT clutches, IMHO, are poor performers when it comes to shifting quickly and day to day drivability. In the case of clutches, you really do get what you pay for more often than not.
|
Appreciate
0
|
12-13-2012, 02:17 AM | #8 | |
Lieutenant Colonel
242
Rep 1,857
Posts |
Quote:
__________________
|
|
Appreciate
0
|
12-13-2012, 02:21 AM | #9 |
1756
Rep 17,960
Posts
Drives: A Lot
Join Date: Sep 2006
Location: SF Bay, CA
iTrader: (0)
Garage List 2018 Ducati Panigal ... [0.00]
2016 Mazda CX5 [0.00] 2017 Aprilia Tuono ... [0.00] 2019 BMW M2 Competi ... [0.00] 2015 BMW M5 Competi ... [10.00] 2016 Ducati XDiavel S [0.00] 2016 AMG GT S [0.00] 2011 Ferrari 458 It ... [0.00] 2017 Charger Hellcat [0.00] 2015 KTM Super Duke ... [0.00] 2016 KTM RC390 [0.00] |
|
Appreciate
0
|
12-13-2012, 03:18 AM | #10 |
Lieutenant Colonel
105
Rep 1,529
Posts |
hey shiv...how long have you had yours on for? and the way you drive how long do you expect it to last?
__________________
Space Gray l 6MT l OSG LSD w/ VAC Race Diff Cover l Cobb e30 l Morr vs8.2 l UUC SSK w/ DSSR l VSRF Catless Dps l RPI Intercooler l CDV Removed l HID AE 8000k l ETS Catback l AST 5200 w/ Vorshlag Camber Plates l ER Dual Oil Coolers l Rear Camber and Toe Arms l K&N Drop In l Solid Tranny/Diff/Subframe Bushings l Bridgestone RE-11
|
Appreciate
0
|
12-13-2012, 07:17 AM | #11 |
Lieutenant Colonel
104
Rep 1,520
Posts |
|
Appreciate
0
|
12-13-2012, 09:45 AM | #12 | |
Lieutenant
22
Rep 414
Posts |
Quote:
Lightened fw will chatter like a mofo but engages nicely and early. Just remember to break it in big time
__________________
2017 F82
|
|
Appreciate
0
|
12-13-2012, 11:40 AM | #13 |
3455
Rep 79,211
Posts
Drives: C6 Z06, 09 335i, 10 335xi
Join Date: Dec 2008
Location: www.TopGearSolutions.com
|
If its any consolation a lot of my ACT clutch guys are switching to spec now for one reason or another. Either it's not holding the power anymore, or it's already worn out. I got one customer with a single turbo that said his ACT is not holding the power. I also sold a few to some current single turbo guys and they love them.
|
Appreciate
0
|
12-13-2012, 11:50 AM | #16 |
Brigadier General
130
Rep 3,039
Posts |
I saw on another forum where someone installed a Sachs 4 puck clutch. 4 pucks are generally not the most streetable, but the reviews seemed very promising. Might want to look into that one.
__________________
2007 E92 6MT SGM: MusicarNW Level 2, Procede Rev 2.5, FFTEC/Vishnu LPFP with Flexfuel Sensor and Flash, M3 Offset V701's, WaveTrac LSD, Michelin PSS, Downpipes, M3 Control Arms, TCKline D/A Suspension, LCI Tail lights, Lux AE's, ER Charge Pipe, DCI's, Mtech Front and Rear, M3 Sideskirts, HPF Stage 1 Clutch
|
Appreciate
0
|
12-13-2012, 12:22 PM | #18 |
1756
Rep 17,960
Posts
Drives: A Lot
Join Date: Sep 2006
Location: SF Bay, CA
iTrader: (0)
Garage List 2018 Ducati Panigal ... [0.00]
2016 Mazda CX5 [0.00] 2017 Aprilia Tuono ... [0.00] 2019 BMW M2 Competi ... [0.00] 2015 BMW M5 Competi ... [10.00] 2016 Ducati XDiavel S [0.00] 2016 AMG GT S [0.00] 2011 Ferrari 458 It ... [0.00] 2017 Charger Hellcat [0.00] 2015 KTM Super Duke ... [0.00] 2016 KTM RC390 [0.00] |
Tmo335tt has that combo with his single turbo car. Drives well and holds the power. But it looks like DMFWs may be tripping out misfire detection at high rpm/high HP ranges. Happens to Porsches a lot. Seems to be happening to N54s now that power levels are creeping upwards.
|
Appreciate
0
|
12-13-2012, 12:32 PM | #19 | |
Lieutenant Colonel
66
Rep 1,708
Posts |
Quote:
Also I suspect drivetrain/engine durability should be better with the DM |
|
Appreciate
0
|
12-13-2012, 12:45 PM | #21 |
Lieutenant Colonel
80
Rep 1,883
Posts |
I had ACT with stock DMFW, I've driven a Spec 2+ with stock DMFW, I just purchased a Spec 2+ wtih LWFW.
My opinions: ACT 1. held all the power/torque I threw at it including single turbo. 2. pedal pressure was more than stock and more than Spec 2+ with DMFW (I liked the heavier feel tho). 3. Clutch engaged literally maybe an inch off the floor. I ended up absolutely hating this. It caused so many misshifts as I would engage the clutch before I got into gear when shifting quickly. It made 2-step nearly impossible to use. It made NLS act funny. It started dragging after a while making launching impossible. Spec 2+ w/DMFW (from the drive I took) 1. Pedal pressure is slightly more than stock, less than ACT (negative in my book). 2. Engaged easily and drove fine. 3. Holds my friends power who is also single turbo. I have a 2+ with lwfw coming in the mail. My recommendation is to get the 2+. I haven't heard anything bad about it and I am very, very anit-Spec after the BS they pulled on my brother with his SC'd Mustang a few years back.
__________________
Legal Disclaimer: Anything I or anyone else says about my vehicle on this website(e90post.com or any affiliated or nonaffiliated sites), pertaining to modifications, is only to gain acceptance from my/our peers, and does not actually represent anything actually existing on my car, and thus, cannot be held against me in any issues, i.e. warranty claims, that may arise.
|
Appreciate
0
|
12-13-2012, 12:49 PM | #22 |
Lieutenant Colonel
80
Rep 1,883
Posts |
My last recommendation is to purchase whatever you decide on from Jeff@Topgearsolutions. Top notch service!
__________________
Legal Disclaimer: Anything I or anyone else says about my vehicle on this website(e90post.com or any affiliated or nonaffiliated sites), pertaining to modifications, is only to gain acceptance from my/our peers, and does not actually represent anything actually existing on my car, and thus, cannot be held against me in any issues, i.e. warranty claims, that may arise.
|
Appreciate
0
|
Bookmarks |
|
|