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Hi all,

Long time 147 owner here that has never posted on the forum but read occasionally.

We've owned our 147 Ducati Corse since new in '09 and have loved it. About 3 years in we had an EGR valve failure and our local independent specialist did an ECU delete remap and while they were at it asked if we'd like a power/torque remap. We said yes please.

The car was transformed with an estimated increase from the factory 170hp to 205hp and 40 or so more Nm of torque. It really did pack a hard punch when booted.

My question is, has anyone with a remapped 1.9 JTDM else had clutch slip? When in 4th/5th/6th at maybe 2,000 rpm or less, when you put the foot down it's common for the clutch to slip and so I find myself either having to go down a gear or slowly feed in the power which detracts from the enjoyment.

We've had several clutch replacements over the years to try to fix this, each time, it seems ok for a while afterwards, but then begins to slip again after 5-10k miles. Every time it's been changed there was no significant wear on the clutch plate. One clutch was even uprated in some way (not sure of makes etc.) to try to get this solved. One time a small oil seal leak was suspected to be the cause, so that was fixed at the same time and had me thinking it would be the last clutch change. but alas no, again it began to slip again. About 5000 miles ago I got clutch pedal travel when the slave cylinder was leaking and we got the clutch replaced also as it was slipping again. The slipping seemed to be fixed but now it's back again.

I'm at a bit of a loss as to what to do now. I'm thinking there's maybe just too much torque for the clutch if it was near its limitations before the remap and maybe I should get the remap reversed?

I just wondered if anyone else has had the remap and experienced clutch slip and if they might have overcome it somehow.

Thanks in advance for your comments.
 

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Yep it's very common... The old adage about remaps on the 1.9 JTD were, unless you have a new clutch at the time of the remap, you can expect to replace it within 12 months of the remap.

Who was the specialist that did the work for you?

I believe the torque peaks around 2500-2700 rpm for the 1.9 JTD, so this is peak zone for slippage. Some tuners will reduce the base-map in this region to help control the slip, but realistically there's always going to be a lot of torque to deal with here. Clutch wise, I believe the DC came with the "dimpled" clutch from the factory (or it may have been the cloverleaf... anyone else know?), which apparently is a slight upgrade from the standard smooth clutch on the 150 bhp JTDm models... Uprated clutches are available (JTD-performance sell a bunch), but I believe the consensus is now that the GTA clutch + SMF replacement mod is the way to go if you want big power... Reccomended by Ned from Autolusso, but if you're considering it then it's worth speaking to your specialist to discuss if it's right for you.

Other option is to adjust your driving style. I know it's fun to do big torquey pulls from 1500 rpm (my GT is mapped too... trust me, I know it's fun!), but it's the absolute worst thing you can do for your drivetrain... Gently gently until you're up to around 3000rpm should see you right, and then just get into the habbit of shifting gears at higher rpm. Engine redline is 4500 rpm, so makes sense to use the rev range available to you.

The clutch in my GT will slip if I hammer on the torque in a tall gear... So I've just stopped doing that and adjusted driving style.
 

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It's typical with poor remaps (inclusive if it's from known trademark). So don't change clutchs and change remap with real pro tuner who can do good boost map, advance, rail and gear torque limiters. You must not have issues with good remap in 60k miles and more.
 

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Did you ever have the dual mass flywheel replaced?
 
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