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Big puff of smoke. Why?



  Clio 182 cup
Hi I race in the ktec 182 Clio championship and have some issues

My car gives off a big plume off smoke when I back off from being flat out in 4th or 5th. As come of the accelerator I get a BIG puff of smoke fire from the exhaust. It then smokes for a while before eventually burning away and none at all. Car loses no power or performance. When people first noticed they said it looked as though it was goimg to go bang.

It's only just started doing this lately at snetterton coming into the first corner. It's hanging in. Fourth I then come of the power and the smoke comes, by the time I'm at the hairpin it's very faint then after the hairpin we have nothing.
I have no problem strangely at the end of Bentley straight, all is fine.

We had the car compression tested and all was fine, ran it hard on the dyno and all came back well.

Just been to bedford auto drone and the smoke happened again. Those who know it as I came down the back straight to the fast chicane was flat in. 5th, came of power to go fourth and PUFF loads of smoke again, managed to clear within 3 corners and all was well again. Again no performance loss etc. Only did 5 laps and then called it a day.

Has anyone any suggestions??
 
  Clio 182 cup
I've attached some images from snetterton
 

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NorthloopCup

ClioSport Moderator
That looks very similar to what the Vauxhall xe's used to do and pass oil from the breather into the inlet mate. Then it was burnt off through the combustion cycle creating the batman esque smoke screen.
 

Coops Mk1

ClioSport Club Member
  Lots of Scrap...
ai that amount and still returning healthy compression can only be a breather issue imo
 


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