My 2nd turbo is coming in at 4000rpm,does anyone know what may be causing this and is it adjustable so i can put it back to 4500rpm.Thanks Roy uk.
my mods are pfc,intake,dp,mp,blitz catback,1200 sec inj,mild port,stock twins seq,fmic,and bosch 044 fuel pump.

 

I would not lose any sleep over it. If every thing else is running well with your extensive mods, you're in pretty good shape........

 

you could put a home depot boost contoller(plumbing valve) in line with the turbo precontrol to delay secondary boost. but i would just rip all that crap out and go non seq

 

Wow, cool...I wish my secondary turbo would come on @ the switchover rpm (4500)...right now it does NOT!

 

Who knows why it is switching over so early, but if it were me, I wouldn't be complaining.

 

https://www.rx7club.com/forum/showth...hreadid=196412