which clutch for 996 turbo manual 673bhp

[Moosh]

Hi guys,

One for the more technical PHers. Which clutch would be best for my 996 turbo x50 tuned to 673bhp. Do you think the 964 RS would be okay or would you recommend something else.

[Vixpy1]

What turbos / injectors are you running ?

[LeftHooker]

Moosh said:

Hi guys,

One for the more technical PHers. Which clutch would be best for my 996 turbo x50 tuned to 673bhp. Do you think the 964 RS would be okay or would you recommend something else.

The guys at JZM will be able to tell you exactly what you need. They fitted my 997 Turbo with a good quality upgraded clutch.

[IMIA]

I'd go with a sachs 2.5 and GT3 4.0 lwfw

[Moosh]

Vixpy1 said:

What turbos / injectors are you running ?

Hybrid K24. Not sure which injectors

[Vixpy1]

Moosh said:

Vixpy1 said:

What turbos / injectors are you running ?

Hybrid K24. Not sure which injectors

Sachs should would fine

[Moosh]

Vixpy1 said:

Sachs should would fine

Would I notice any difference in the feel of the clutch. Don't want to fit anything that will make the car undrivable.

[Mark A S]

I have a 996 turbo x50 running 1.4 bar, not sure of the power but the Sachs 740 nm clutch I had in it could not cope, so I now have a Sachs 980 nm clutch in which is fine. No difference in feel, only slight change is clutch bite point is a bit further up on the pedal.

[IMIA]

Moosh said:

Vixpy1 said:

Sachs should would fine

Would I notice any difference in the feel of the clutch. Don't want to fit anything that will make the car undrivable.

Sachs feels stock but if you go for lwfw you have to get used to it as its a bit grabby with a lwfw. What clutch were you running before? Even a new OEM clutch would not hold hard third, fourth, fifth gear runs even for one pull with 673 bhp lol!

[s3nick]

How much torque do you have?

I'm guessing around 900nm. If so the clutch kit I am running has 950nm plate and is very drivable.

[Moosh]

IMIA said:

Sachs feels stock but if you go for lwfw you have to get used to it as its a bit grabby with a lwfw. What clutch were you running before? Even a new OEM clutch would not hold hard third, fourth, fifth gear runs even for one pull with 673 bhp lol!

I've got the duel mass fly wheel, If I go for the Sachs would you recommend I change the fly wheel?

[IMIA]

Moosh said:

IMIA said:

Sachs feels stock but if you go for lwfw you have to get used to it as its a bit grabby with a lwfw. What clutch were you running before? Even a new OEM clutch would not hold hard third, fourth, fifth gear runs even for one pull with 673 bhp lol!

I've got the duel mass fly wheel, If I go for the Sachs would you recommend I change the fly wheel?

i've recommended the gt3 rs 4.0 flywheel as i've heard it has all the benefits of a lwfw without the downsides which are transmission chatter and a slightly grabby clutch. I have a lwfw and love it but my cars no longer a daily driver and wouldn't be much fun in stop start london traffic.

With the sort of power you have the engine will spin much more freely as there is less inertia with a lwfw and your throttle response will also greatly improve. The GT3 RS 4.0 lwfw apparently has all these benefits bit is still quite civilised in terms of transmission chatter etc so you have the best of both worlds. Hope this helps.

[Moosh]

many thanks for the advice

[Moosh]

Just been looking at reviews on the GT3RS 4.0 LWFW and some are saying that they don't last long and are prone to failures. Does anyone have experience with the above. Also I have read that the conversion creates additional rattle/noise from the transmission. Again advice very much appreciated.

[IMIA]

Moosh said:

Just been looking at reviews on the GT3RS 4.0 LWFW and some are saying that they don't last long and are prone to failures. Does anyone have experience with the above. Also I have read that the conversion creates additional rattle/noise from the transmission. Again advice very much appreciated.

best person to speak to is someone like Ken at 9e. He's done mine and it definitely rattles and transmission chatter but if you learn to be in correct gear all the time i.e. do not labour engine there is very little noise. I read the GT3 4.0 flywheel was much better in this respect but suspect its a characteristic of all lwfw

[RatBoy M3CSL]

Speak to 9E or Fearnsport to see what they use on their conversions, you need something rated to deal with the torque, BHP isn't the killer for clutches.., if you track it a lot you might want a single mass, but for street use and a soft smooth pick up, a dual mass is better as they are damped.. see what Ken has to say, a stock GT2 unit might be strong enough.., or a Sachs upgrade friction/pressure plate..

[the other me]

I had a Sachs 890 as part of my conversion from 9e. I have (for the moment ) a lot less hp than you have, but gob loads of torque.

I believe they are using the same clutch in much higher power applications than I have. Haven't noticed any difference whatsoever compared to STD 996t clutch.

[Jibaro]

I've got Sachs 890 from 9e also with no problems, standard fw (I think), been dyno'd with similar bhp figs as op's car. Clutch feel is acceptable, biting point q high & a little hard to judge and needs revs, overall though it's not too dissimilar to oe, and it does not slip when on the power which is the main thing.

[SpeedFreakDave]

Speak to 9e

The Sachs 890 should easily handle it, pretty sure that's what they fitted on mine which runs 850 bhp

[IMIA]

Jibaro said:

I've got Sachs 890 from 9e also with no problems, standard fw (I think), been dyno'd with similar bhp figs as op's car. Clutch feel is acceptable, biting point q high & a little hard to judge and needs revs, overall though it's not too dissimilar to oe, and it does not slip when on the power which is the main thing.

From your description sounds like you may also have a lwfw. The Sachs on its own should be no different to stock and doesn't need any more revs.