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
I'm not sure if this will help, but...
I ran my EVO3 IDM for the first time this past weekend. I had a similar issue (and also tried different clutch settings). In the final qualifier the motor was tuned to around 210+f (when going out), and it got a little soft off the corners almost right away. We spent the remainder of the qualifier experimenting with it. I finally had the pitman put the temp gun down and just richen it until it was too rich, and went forward from there. Ended up back at 190f (88c).
The solution to my problem seemed to be that the motor likes to run under 200f. It had BIG hp there, yet running over 5 minutes with fuel to spare. I'm super happy with mine.