Discussion
I upgraded my clutch last year (I think the upgraded version is now standard fit from Facxtory) - and enquired about lighter pedal through changing master cylinder, but I think they said if I did that then I'd get some drag with the clutch not fully disengaging.
Personally, the new clutch is very heavy, but I never notice it on the move, and have just manned up a bit
- 1 obvious benefit is that it keeps the woman out of the driving seat!(if she was ever tempted). Just compensate with some extra leg work down the gym.
Personally, the new clutch is very heavy, but I never notice it on the move, and have just manned up a bit
- 1 obvious benefit is that it keeps the woman out of the driving seat!(if she was ever tempted). Just compensate with some extra leg work down the gym.This subject is very close to home, I have a Sachs Uprated Item and it's like doing a 200Lb leg press.
It is so heavy I have to knock the car into neutral at junctions because I can't hold the thing down comfortably that long!
I was talking to a very accomplished Ultima builder yesterday and he said alower higher? ratio master cylinder would be fine as he had done it on a previous build.
Dom is your box standard? does it have the standard Porsche (for that box) plate LSD fitted?
I'm thinking of reducing the preload on mine as its a bit grabby at low speed, just wondering if others have the same experience?
It is so heavy I have to knock the car into neutral at junctions because I can't hold the thing down comfortably that long!
I was talking to a very accomplished Ultima builder yesterday and he said a
Dom is your box standard? does it have the standard Porsche (for that box) plate LSD fitted?
I'm thinking of reducing the preload on mine as its a bit grabby at low speed, just wondering if others have the same experience?
Edited by F.C. on Wednesday 11th April 08:30
if you change the cly dont forget the "throw" will be less, fine for the triple plate type clutch, many might be overstroking anyway. means the clutch will be a bit more on or off. i changed mine as I have a tilton twin, was a triple but found I either stalled or left two black lines at every start. I will help reduce the heavyness though.
Good to see a thread about clutches as mine has developed a problem although slightly off topic. After 10000 miles my std clutch in a g50/02 has begun to slip when I hit the power band in my 550hp uk dynoed car.
What do you guys recommend as a replacement?
On the throw front. If I ram my clutch pedal to the floor I can sometimes get a clunking noise as something comes into contact within the gearbox. However if I adjust the pedal the other way I get terrible drag when trying to engage 1st gear. Std slave cylinder.
What do you guys recommend as a replacement?
On the throw front. If I ram my clutch pedal to the floor I can sometimes get a clunking noise as something comes into contact within the gearbox. However if I adjust the pedal the other way I get terrible drag when trying to engage 1st gear. Std slave cylinder.
MarkWebb said:
Good to see a thread about clutches as mine has developed a problem although slightly off topic. After 10000 miles my std clutch in a g50/02 has begun to slip when I hit the power band in my 550hp uk dynoed car.
What do you guys recommend as a replacement?
On the throw front. If I ram my clutch pedal to the floor I can sometimes get a clunking noise as something comes into contact within the gearbox. However if I adjust the pedal the other way I get terrible drag when trying to engage 1st gear. Std slave cylinder.
Hi Mark,What do you guys recommend as a replacement?
On the throw front. If I ram my clutch pedal to the floor I can sometimes get a clunking noise as something comes into contact within the gearbox. However if I adjust the pedal the other way I get terrible drag when trying to engage 1st gear. Std slave cylinder.
We have looked at a variety of options which we will mate up with our new sequential race box, partly for better endurance and for ease of servicing and performance.
After assessing all the options, we have gone for a custom clutch from Australian Clutch Services. They are making a custom to fit our G96 50 which will have an integral hydraulic release bearing so we can do away with that dreadful clutch fork arrangement, which will improve reliability, feel, and make servicing the box around a thousand times easier!
We are also getting a similar one for our sequential box. We chose this because of the companies pedigree, their service and the price which was far better than the Tilton or AP equivalent. Let me know if you want any more info.
Jonny
macgtech said:
Hi Mark,
We have looked at a variety of options which we will mate up with our new sequential race box, partly for better endurance and for ease of servicing and performance.
After assessing all the options, we have gone for a custom clutch from Australian Clutch Services. They are making a custom to fit our G96 50 which will have an integral hydraulic release bearing so we can do away with that dreadful clutch fork arrangement, which will improve reliability, feel, and make servicing the box around a thousand times easier!
We are also getting a similar one for our sequential box. We chose this because of the companies pedigree, their service and the price which was far better than the Tilton or AP equivalent. Let me know if you want any more info.
Jonny
I like the sound of the integral hydraulic bearing We have looked at a variety of options which we will mate up with our new sequential race box, partly for better endurance and for ease of servicing and performance.
After assessing all the options, we have gone for a custom clutch from Australian Clutch Services. They are making a custom to fit our G96 50 which will have an integral hydraulic release bearing so we can do away with that dreadful clutch fork arrangement, which will improve reliability, feel, and make servicing the box around a thousand times easier!
We are also getting a similar one for our sequential box. We chose this because of the companies pedigree, their service and the price which was far better than the Tilton or AP equivalent. Let me know if you want any more info.
Jonny
I'm going to get the box out to do a bit of work so might be a good time to change. Any links to site?I have fitted one of these http://www.mpl-tuningparts.de/english/porsche.html which should have an easier pedal.
I have not yet tried it (my 13 year old daughter pressed the pedal to bleed the system) but if it lives up to the hype it should reduce pedal pressure.
Paul
I have not yet tried it (my 13 year old daughter pressed the pedal to bleed the system) but if it lives up to the hype it should reduce pedal pressure.
Paul
F.C. said:
I like the sound of the integral hydraulic bearing I'm going to get the box out to do a bit of work so might be a good time to change. Any links to site?
Indeed, it will make everything a lot more straightforward when removing the box. I'm going to get the box out to do a bit of work so might be a good time to change. Any links to site?Here is a link to the site.
http://www.xtremeclutch.com.au/
We are having this (or similar) done to get us out of a bit of a bind, as our fork release casting has failed and we have the next round in 8 days time, and our sequential box will not be with us by then due to various delays.
If you/others are interested I will ask the engineer to put something together as a more permanent package, as my thoughts are that the pedal is too heavy as standard, and the fork arrangement is terrible for a variety of reasons.
Jonny
the pinion tends to get marks from the bearing and if the lubrification is not optimal either, it might happen that the fork is not moving any longer. All the pressure on the pedal will then go into the case fixing point of the fork pinion and break. Could also happen if your clutch cover is broken and stuck.
could also be a reason, it is very difficult to tell when you get the broken box and if you ask people what they have done they usually lie because
they are not standing up to their mistakes. Still the fork is a pain and the 997 regular box is also using a pressed clutch instead of a pulled G50 which is making the install A LOT EASIER !
Obviously PORSCHE has good experiences with their setup since they use if for 2 decades now in their most expensive cars.
they are not standing up to their mistakes. Still the fork is a pain and the 997 regular box is also using a pressed clutch instead of a pulled G50 which is making the install A LOT EASIER !
Obviously PORSCHE has good experiences with their setup since they use if for 2 decades now in their most expensive cars.
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