No change in tire size. I just did a pull from a stop. It instantly starts stumbling with wide open throttle. So it’s stumbling even without boost. But will pull good and boost with half throttle. It has to be either fuel, air or ignition is my guess. Unless the tranny isn’t communicating with the engine properly.Ok since then was there a increase in the tire size?
I'm not real familiar with the Supers but can't you change pulley sizes? Maybe drop down 1 size and see what happens?
No change in tire size. I just did a pull from a stop. It instantly starts stumbling with wide open throttle. So it’s stumbling even without boost. But will pull good and boost with half throttle. It has to be either fuel, air or ignition is my guess. Unless the tranny isn’t communicating with the engine properly.
The pulley size wouldn’t matter if it’s doing this from a stop with no boost and the blow off valve open. Air filter is clean. I have no idea about the speedometer. How do I calibrate it? But like I said, two respectable shops have driven it while mapping and all systems where working properly. One shop deals with hot rods and turbo cars. The other was a Jeep specialist. They both said nothing is wrong but maybe bad gas/clogged fuel filter. O2 sensors were working and fuel trims looked good. No miss fires detected.My guess it's because it has a tighter converter now so there is no slipping as it was doing before. What about the pulley idea?
Have you replaced the air filter or closely inspected the old one?
Also the speedometer calibration ?
Forgive me. I've never owned a vehicle with a supercharger. Turbocharged vehicles, yes. Do you permanently remove the throttle body to install a supercharger?
What pisses me off is they blamed my engine and supercharger from the get go. They test drove it after the new tranny was installed and told me there’s a rattling sound “like marbles” coming from my engine and I should be getting way more horsepower. The idiots didn’t realize the tranny was in fail-safe mode and the rattling was probably a loose bolt or a lost socket in the tranny. Who knows.I hope they make it right...on all accounts. I have somehow made friends with two different guys over the years, who's family owned an AAMCO franchise. Both were super solid dudes who knew transmissions in and out. I am not defending AAMCO, but I really hate to hear that you have been getting the run around from a shop that clearly doesn't believe they are to blame.