Ok here are the symptoms.

5500+ RPMS

Any boost higher that 1.37 bars.

Feels like fuel cut (IE engine skipping a beat), but data logging shows no signs of timing pull.

Here are my mods:

HKS TBE, Megan racing test pipe, Megan racing down Pipe, Apexi AVC-R, Walboro fuel pump, K&N air intake. I can replicate the problem on demand. Any ideas?


Thanks Seth

 

Take out your plugs and regap or replace them.

I had the same issue when i went to a mere 20psi with a Jestr tune. New plugs, problem solved

Hope that helps.

 

Ok will try that. I'll order new plugs tommorow. What gap did you go with?

 

26-28

 

 

bump for any other ideas just incase.

 

I am getting this too. I am flashed and still on stock exhaust. When I hit 5500rpm, the car looses power hard. Feels like there is no more boost.

 

boost leaks?

 

Akunochi, if you're not tuned, then it's fuel cut. This is not a plug problem. Fuel cut won't show up on logs. Btw, you have an HKS cat-back, not an HKS TBE.

ItalyIX, if you have the stock intake still, then for you it's the intake snorkel missing its clips.

 

Warrtalon, you weren't in my garage last night, were you? My intake snorkel IS missing both clips that hold it in front. How did you know?
So, by putting them back it should solve the problem? I was installing all the engine bushings last night and forgot to put the clips back in.

 

Probably has read posts like this.

https://www.evolutionm.net/forums/sh...clips+blocking