Originally Posted by CH Hobbies

Hi All,

I recently bought 2 21 IDM EVO3 engine and have problem to tuned it right,
The problem is when we apply full throttle on the straight and off throttle into the corner but when apply throttle back the engine tent to bogging which seem like not enough fuel get in the engine, which mean we need to off throttle
again and reapply on throttle and the engine pick up again. we have try to remove the head shim to increase pressure but the problem is still the same, we have tried all the clutch setting but the problem remain.

Appreciated if anyone can help.

Thanx