I've seen a 4D68 conrod and compared with a VR4 one, it's more huge than the VR4 one. I thought of using this conrod for high boost, anyone use this before?
Pin size is 23mm, require bronze bushing for evo...
why my car in low around 1000rpm not stable and the engine "semput",and at high rpm won't happen like this.i have change plug,but just can hold 2 months only after that start back again,