91' FRST

At 16psi as it reaches the 6200-6300rpm, the car slows down, rpm falls down to 5000,
and the pressute too. It exists until I step off the gaspedal.
If the pressure is higher, this symptom appears sooner:
18psi-> 6000rpm
20psi-> 5500rpm

Why does it happen?
What can I do, because i wanna use my car on 20psi?

spec:
1.6 low comp Mahle
superchips(unlimited boost)
FMIC
denso racing fuel pump
305ccm injectors
champion QC59C
T3 stage3



thanks for your help

 

Somebody correct me if i'm wrong but even if its chipped the rev limiter will kick in yes???? and going that far up the range

 

no rev limiter

 

Mine rev'd to 7k on the rollers so I think it's safe to say mine doesn't have a limiter anymore either.

Put simply mate you're over reving the car. Learn to use your gearing as there is no need to rev that high and no benefit to be had

 

lets get this right... an OFAC is boosting more than 16psi.?? i thought this was not possible as the map sensor wont let you.. as its only ofab you can do this...

 

Where does it mention ofac???

 

next exchange 0FAC for 0FAB.(3bar map)

 

being a 1991 its 99% of the time OFAC...