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  • ...JD TUNING ADELAIDE...
  • Gold Donating Members
  • Member For: 16y 11m 13d
  • Gender: Male
  • Location: Adelaide

That's because a rated actuator is the point where it will start to bleed off not the total amount of boost it will run 

 

an incorrectly set 12psi actuator can record over 20lb of boost with no lines connected ....your 5psi one could be easily smacking 10psi and stock injectors are all kinds of out by 10psi in the deep end you're asking for a rod out the side of the block 

you need a tune buddy, bite the bullet !

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  • Gold Donating Members
  • Member For: 10y 3m 15d
  • Gender: Not Telling

Hopefully it wasn't run with no line!

 

Obviously it was always going to run less boost with a line between the comp housing and actuator but it clearly wasn't enough.

 

There's a few more factors at play as well such as wg flow, preload as mentioned and exhaust restriction. 

 

A big compressor isn't suited for the smaller wg holes and will struggle to run low boost up top. 

 

Just for sh*ts and giggles I drove my car on the 11.8 psi gate and it held 10 psi until about 4k then crept up to 15 or 16 up top. 

 

Anyways it was worth a shot I suppose.

 

A couple of psi extra won't hurt but you can't have it leaning out due to injector dc.

 

Unfortunately it is tune time or stock turbo time.

  • less WHY; more WOT
  • Site Developer
  • Member For: 17y 1m 5d
  • Gender: Male
  • Location: Melbourne

uhh, even if that is the right turbo, you can clearly see that it has bent fins, so it's not worth purchasing as you'll have to repair it at significant cost.

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  • Manual mode ________________________ All day, erryday
  • Donating Members
  • Member For: 17y 5m 20d
  • Gender: Male
  • Location: Probably above atmospheric pressure

If it's got tits or wheels, it's gonna cost you money and cause you problems

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