Jump to content
SAU Community

Recommended Posts

Hey all,

Being my first import, there are things that I'm still unclear about, and I'm just looking to bounce some ideas off all y'all.

I have recently got a new dump/exhaust installed, and it's changed the power delivery. Before I had it installed, it seemed to have smooth delivery until redline, and when I had the boost controller on, it would pull like buggery till bout 5500RPM, and then sort of tapered off, not a complete died-in-the-arse situation, but just pulled less hard.

Now with this new free flowing exhaust, it seems to be doing similar thing, even with the boost controller off. Am I right in thinking that it's just my widdle stock turbo running out of puff?

Link to comment
https://www.sau.com.au/forums/topic/232636-flat-spot-in-33/
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Oh, also, forgot to add these photos I believe.
    • Thought i'd update on this. I was able to get in contact with Craig Lieberman and later on Darryl Alison (owner of Kaizo Industries). Darryl was able to help me verify that my car was in fact one of theirs and is helping me find more info on mine !
    • There's restrictor pills in the stock boost control hoses. That's how they set the amount that was bled off and hence the "high" boost setting. The usual mod in the day was to remove it and send the "high" boost setting up to about 14 psi.
    • Thanks Duncan, that's the best info I've read. Furthermore after learning about the PCM programming side controlling the factory boost solenoid, the purpose of the solenoid is to "bleed" boost when pin 25 is earthed, thus allowing spring pressure in the wastegate actuator to overcome diaphragm boost pressure, thus closing or reducing the position of the wastegate flap creating more boost as the turbo is able to spin faster. It's pretty cool to see a designated Pill to do exactly this, would have liked to have seen it with a tiny filter over the end for those moments in vacuum.  The constant bleed pill has now been removed completely from the system and solenoid boost control has been restored once again.   Case closed 😂
    • The wideband reading is meaningless if it's not running. Why are you using shitty old sidefeeds on any engine, let alone a Neo? What manifold and fuel rail are you using to achieve that? Beyond that, can't help you with AEM stuff as I've never been their ECU/CAS combo.
×
×
  • Create New...