16-05-2012, 01:11 PM
Great explanation Ruan.
It's kinda hard to explain some times without getting too technical and then not making the point, but I think that pretty much sums it up
I know that a new LuK clutch will take about 240-260lbft if you are sensible with it, so they have a fairly good torque load capability. The Valeo ones might be even better.
I know a few people running FMIC with new OEM clutches at about 250lbft without any problems if they treat the clutch sensibly, and have been going years.
As Ruan says, if it slips with just a stage 1 tune chances are it was well on it's way to needing changing any way!
I was unlucky with my HDi. It was FPSH one owner from new and it slipped as standard about 2 weeks after I bought it, but after that I ran endless remaps, 0-60 runs, 1/4m runs, 1st > 2nd > 3rd runs with throttle flat during shifts, loads of remap testing and all sorts, and it was totally solid until I fitted my FMIC mapping at which point it wasn't so happy, but still held on well!
In over 100 Stage 1 HDi's I've only seen two that slipped so much that people needed new clutches. The rest just gripped fine.
Do you have a dyno plot for that? I'm interested in the wheels figures and stuff too if you got them.
Dave
It's kinda hard to explain some times without getting too technical and then not making the point, but I think that pretty much sums it up
I know that a new LuK clutch will take about 240-260lbft if you are sensible with it, so they have a fairly good torque load capability. The Valeo ones might be even better.
I know a few people running FMIC with new OEM clutches at about 250lbft without any problems if they treat the clutch sensibly, and have been going years.
As Ruan says, if it slips with just a stage 1 tune chances are it was well on it's way to needing changing any way!
I was unlucky with my HDi. It was FPSH one owner from new and it slipped as standard about 2 weeks after I bought it, but after that I ran endless remaps, 0-60 runs, 1/4m runs, 1st > 2nd > 3rd runs with throttle flat during shifts, loads of remap testing and all sorts, and it was totally solid until I fitted my FMIC mapping at which point it wasn't so happy, but still held on well!
In over 100 Stage 1 HDi's I've only seen two that slipped so much that people needed new clutches. The rest just gripped fine.
HDIkyle Wrote:I have a Whippy stage 1 Map running 128.2 bhp and 213lbs/ft and my clutch was fine for abit, slipped and is now fine again.
It really is a different car, and thats on 170k+
Do you have a dyno plot for that? I'm interested in the wheels figures and stuff too if you got them.
Dave