Help prob with boost

[Feryha]

Hello

I just fitted AVC-R and raised the boost to 0.8 bar (approx. 10 Psi)

The engine run ok until it reach 5000 rpm

when it hit 5000 rpm the engine cannot rev more there something like cut ( like the cut when the rev hit red line)

I lower the boost to 0.6 and also trying 0.7 bar. The engine run normal, the rpm goes all the way red line

what is this? is this normal?

BTW i got partitioned pod filter, cat back 3.5" exhaust, std intercooler

[meggala]

btw .8 bar is around 12 psi you need to gap your plugs to .8mm or less that is the reason for your mis fire at higher boost

if that doesn't work it could be other stuff but it seems to be the problem

meggala