Clutch slip comes from 2 things. One is that the engine generates torque levels which simply over whelming the clutch leading to sustained slipping say full throttle up hill, this is usually at a much higher level than the maximum torque level. The torque limit is usually set at a level that when you floor the throttle & a turbo, or super-charger, goes on-boost instantly the sudden 'impact' of the torque spike can be held. With that type of spike it can easily rip the two friction surfaces apart, this is seen by a momentary slip when you suddenly floor the throttle & usually happens at higher rpm when the turbo is producing elevated pressure on a cruising throttle & the throttle is suddenly floored.
If you suddenly floored it quite high up the rpm like that you may be putting more stress on the clutch than giving it some beans at peek torque when the turbo is still a little lethargic when spooling up.
is the power smooth throughout the rev range? i am looking to get my PD150 mapped and i dont want a the power to come as one big lump as with some tuning companies...
is the power smooth throughout the rev range? i am looking to get my PD150 mapped and i dont want a the power to come as one big lump as with some tuning companies...
I was at R- Tech perforamnce last week and there was a Cupra 150PD with a P-Torque remap there having a rear ARB fitted, before my project car went on there dyno the Cupra was ran up and made around 180bhp 300lbft. A good result but 30lbft less than a past run on a Dimsport inertia only rolling road.
is the power smooth throughout the rev range? i am looking to get my PD150 mapped and i dont want a the power to come as one big lump as with some tuning companies...
i've got an upsolute map with peak torque tweaked back to make power delivery more useable. I don't like clutch shudder and wanted it to be smoother as the GF uses it most days. She's quite heavy footed and i didn't fancy having to put a clutch in it as a consequence.
She complains now that in wet it's an animal.
She doesn't like driving the beemer in wet. Doesn't trust it.
Every dyno and operator can differ, the map is 100% smooth, but you will always get a little variaton on different dynos. We somtimes run a car 4 - 5 times to get the smoothest graph.
On the road all the P-Torque maps are silky smooth
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