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Discussion Starter · #1 ·
had my standard st mapped but now my clutch slipping everytime i put my toe down,dont realy want to start doing anymore mods upgradeing clutch ect,if i have it put back to standard will it stop the clutch slipping because the guy who mapped for me is telling me even if it does stop it,it will be slipping again in no time anyway is this correct.
 

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It'll be fine back on standard map. The pressure plate which actually causes the clutch to grip the flywheel isn't able to clamp hard enough due to the increase in torque your maps has over standard.
 

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had my standard st mapped but now my clutch slipping everytime i put my toe down,dont realy want to start doing anymore mods upgradeing clutch ect,if i have it put back to standard will it stop the clutch slipping because the guy who mapped for me is telling me even if it does stop it,it will be slipping again in no time anyway is this correct.
There are a number of possible reasons for your clutch slipping after you have increased your engine's torque.

Firstly you may have a clutch in good condition but you have bought a poorly wriiten set of callibrations producing torque levels that are above its abilities to cope. If that is the case then you may not yet have damaged the clutch sufficiently to require its replacement if you were to revert the software to standard. If you allow the clutch to slip in current circumstances more than just a bit you create heat in it which denatures its components and materials such that the condition gets worse.

As an example just one savage high rev. dropped pedal start can cause sufficient heat to render a standard clutch ineffective by altering the nature of its individual components, in particular the backing to the friction materials and warping of quite delicate items in that area causing uneven friction material contact.

If you want to persevere with this new software that may produce higher torque than a brand new standard clutch can handle then fit either the standard clutch from an RS or the standard clutch kit from a Volvo S60R/V70R, both have high quality friction materials and a clamping force about 40% greater than a standard ST kit. The Volvo kit is a bit better specced on comparison with the 'RS' item having a strengthening web that helps to prevent distortion of its pressed cover and also has a sprung disc which is very usefull were you to consider a single mass flywheel as it mitigates against the absense of the springing of a DMF.

Regards, Don.
 

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I have that Volvo clutch kit in my own ST, have had for nigh on 2 years now. Originally I had it with the standard DMF but I have recently paired it with my own KU single mass flywheel.

I have to say that I did discern a slight bit more 'shunt' in the transmission with it and the DMF caused, I suspect; by the addition of the springing in both the standard flywheel and the Volvo kit's sprung disc, but beyond that it was fine and held up with some hard driving.

I did read here or elswhere recently that Ford have upped the price of their 'RS' kit that may put it way over the price to pay for that Volvo kit.

Regards, Don.
 

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I have just grabbed this from another thread re. Volvo 'R' clutch kit, pricing etc.:

"Volvo's peerless dealer in Chippenham, Wiltshire will deliver these Volvo 'R' clutch kits to you for £275 including VAT and delivery.

They will supply and fit for a shade £750 including VAT. If you want the Volvo/Ford DMF fitted they can quote for that too, similarly if you want one of my single mass flywheels they can also fit that as they have fitted a fair few for my Volvo customers.

I use the term peerless in respect of MRG as many of my Volvo customers will travel the length of the country to get specialist work done by them at competative prices......not many main dealers of any brand will build you a 420bhp engine for your track car.

If you are interested you need to call Simon Chu, the parts and service manager on 01249 443300."

Another shameless punt for a damn decent outfit....

Regards, Don.
 

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So if the Volvo one is less than 300 quid why would anyone go for the rs clutch?!
An also if you map your car, do you need a full clutch set or just the flywheel or what?
 

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So if the Volvo one is less than 300 quid why would anyone go for the rs clutch?!
An also if you map your car, do you need a full clutch set or just the flywheel or what?
Because a lot of the regulars here speak only of the 'RS' alternative.

If you buy a well written initial software upgrade it will not damage or compromise a standard clutch that is in good order. You should not need to concern yourself with a more robust clutch unless you are going for higher outputs. BUT, it is probably prudent to fit a more robust clutch once the existing one is either worn or irreparably damaged, that does not cost much more.... and gives you the clutch capacity for yet higher outputs with exhaust, bigger intercooler etc. where yet higher torque may well require it.

Regards, Don.

PS. It seems to be the case that most dealers hope....or expect to sell you a new DMF with every second clutch kit, that is when there is the opportunity to fit a single mass flywheel which will not need replacement and has other benefits in terms of lower mass etc.

PPS. you should also consider that clutches are damaged by poor, inconsiderate and unsympathetic use of them with any torque output.
 

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The rs clutch on its own is 200 I think the above is clutch only so once you add on the release bearing and flywheel it will cost more

Or am I mistaken?

Pumabuild fit the clutch and flywheel for 750, from what I read above Volvo only fit the clutch for 750
 

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Well all I am planning to do is et bluefin stage 1 so will only have 300lbft and 260 bhp maximum. So if my clutch starts slipping what should I go for? Isn't there a upgraded st clutch?
 

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Rs is the cheapest upgrade

The 275 above is just the clutch (ds sell the rs clutch for under 200)

Pumabuild do an uprated st clutch at about 809 supplied.
 

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Im really worried about getting a map for my car, knowing luck
luck I have my clutch will slip with just a stage 1
 

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Im really worried about getting a map for my car, knowing luck
luck I have my clutch will slip with just a stage 1
Mine started slipping on the way home from Collins after getting their stage 1 map, only 11000 on the car.............luck of the draw i suppose
 

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Discussion Starter · #19 ·
the guy is telling me that my clutch must have been on the way out anyway and haveing it mapped has put more pressure on it so even if i go back to standard the clutch will slip very soon again.what i want to know is can i save this clutch or am i going to have to fork out for a new one.
 

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the guy is telling me that my clutch must have been on the way out anyway and haveing it mapped has put more pressure on it so even if i go back to standard the clutch will slip very soon again.what i want to know is can i save this clutch or am i going to have to fork out for a new one.
Ignore him, it's usually down to mapping or the driver as other people have said


You have every chance of lasting on the current clutch, although how you drive will have the biggest effect. Do you boot it in 5th and 6th often by any chance?
 
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