Need help to figure this out guys! Lets first start off by saying I pulled an 11.40 motor to drop in a mid 10 sec Weber built motor that is proven. I started out chasing down a mild miss. At idle car is fine and steady for the most part. If you put it in gear and give it a little throttle and hold it with the brakes on the car will miss and rpm will fluxuate intermittantly. The car at wot is also breaking up a bit but not real terrible but you can tell it isnt right.
So I started replacing everything with known good parts. Coil pack, module, plugs, wires, MAF, computer, chip, crank sensor, cam sensor cap, and added another large ground wire and still have the identical miss.
So I moved on to changing the throttle body with another known good one since there was basically nothing left...with the tps, iac still on it off the 11.4 motor. When I removed the throttle body I see a decent amount of oil in the intake and on the back side lid of the throttle body...the front entry side of it was dry as was the uppipe so I know it wasnt the turbo which is brand new. I am getting a slight amount of oil dripping off the driver side valve cover filter which is telling me some blow by which there should be next to none on this engine.
Should there be any oil in the intake? It is drenched inside when you look in it. I am leaning toward a intake leak of some kind due to the gasket or a crank in the intake manifold. What are your guys opinions?
So I started replacing everything with known good parts. Coil pack, module, plugs, wires, MAF, computer, chip, crank sensor, cam sensor cap, and added another large ground wire and still have the identical miss.
So I moved on to changing the throttle body with another known good one since there was basically nothing left...with the tps, iac still on it off the 11.4 motor. When I removed the throttle body I see a decent amount of oil in the intake and on the back side lid of the throttle body...the front entry side of it was dry as was the uppipe so I know it wasnt the turbo which is brand new. I am getting a slight amount of oil dripping off the driver side valve cover filter which is telling me some blow by which there should be next to none on this engine.
Should there be any oil in the intake? It is drenched inside when you look in it. I am leaning toward a intake leak of some kind due to the gasket or a crank in the intake manifold. What are your guys opinions?