Quote Originally Posted by fbm View Post
I am running shell 93 i was thinking maby my trans dipstick was hitting my headers i am trying to do anything to rule it out i was even gonna get a 3.5 pulley before i get it dyno tuned
So far you have ignored the advice given so far...
I have had my arms in a few 3800s... actually more then a few. Lets make this easy on you. There are two really simple ways to go about this.

1. If possible put a 3.8" pulley back on it. It takes less then 5 mins if you have a proper quick change hub, 5mm allen key, and a 15mm wrench.

Then go for a test drive. If there is less or no kr guess what? Its real kr. Proceed to #2 for a even more concrete method.

2. If you cant go bigger on pulley size then take the belt off. Again this is super simple if you have access to a 15mm wrench.

Then go for a test drive. It WILL feel like you chopped its balls off and it WILL be significantly slower then even a lowly gt. If it has no kr then you know your problem.


Do this before you bother with any more speculation or guessing or anything else. Otherwise you will get nowhere.
If you do both of these and then kr is still there then its false knock. My prediction? Its real kr and your on the fast track to gernading your engine....

(Secret #3) Pull the plugs out and see if your missing any chunks. They don't like kr any more then your pistons do.