Hi Guys.

I had this problem before i had the new engien rebuild and the new clutch.

If i am in 3rd and say 4500rpm with half boost say its at 0.6Bar, if i then put my foot down to full throttle 1.4Bar and then let up the car has a judder, quite violent really.

I know you may ask, why half throttle to full throttle then let off. Well its just a incodent that happened and when i tryed it again it did it...

Its done this even before Andy Forest Remaped it so i knwo all fueling etc etc is ok, its a new engine from Subaru and the Clutch is a genuien part too.

Would a slack Mount cause this?
Andy

 

Andy
YHPM