knock after 4500

[xtsiawd]

like it says under wot i get a 20 count of knock after 4500 rpm
i can figure it out
timming is right
i have a new knock sensor
i have poly moter mounts
i have a stage 3 chip
550s
255 lph hp pump
safc
stock down pipe dumped after that
scan master data loger
evo3 gt turbo
evo 3 exhaust manifold
2g mas
a local shop victor research said its a possibility my timming belt skipped a tooth
i know bot my cams line up, but i have not been able to check to see if my crank lines up
i was wondering if anyone has had this problem before

 

[xtsiawd]

i am only running 10 psi of boost

 

[GVR4592]

If you think the timing belt might have skipped a tooth, take the covers off and check it out. You should post a datalog too.

 

[ITSME4G63]

talk about being in the same boat!

 

[dnhieu]

i didnt know you could skip a tooth on the crank and the cam gears would still line up. i guess you learn something new every day...

 

[T9S1i]

have you checked base timing?
I know you said timing is correct but a friend of mine had this exact same problem and turned out to be the base timing.