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Springs For Turbosmart Gates With 6Boost Manifolds

Roy

By Roy,
in Engines & Forced Induction

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Roy Grand Master

Roy

Posted
Posted

So my experience tells me that the Turbosmart psi rating for springs goes out the window a little when running it on a 6boost manifold. So understand it has to do with the turbo and turbine housings you run etc etc but looking to get an idea of what springs people are running to get about 18psi out of them with no EBC.

I am running a 45mm Hyper-Gate

KiwiRS4T Grand Master

KiwiRS4T

Posted
Posted

18psi is 18psi no matter what manifold you are using. Get as close as possible with the actuator. Positon of the wastegate makes a difference to boost creep (mine is off the turbo housing). What kind of ecu are you using? If you have a Link or Vipec or similar you can just get a Mac valve and use the ecu for boost control.

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34GeeTeeTee Grand Master

34GeeTeeTee

Posted
Posted

18psi is 18psi no matter what manifold you are using. Get as close as possible with the actuator. Positon of the wastegate makes a difference to boost creep (mine is off the turbo housing). What kind of ecu are you using? If you have a Link or Vipec or similar you can just get a Mac valve and use the ecu for boost control.

i think 6Boost have the boost creep issue to a degree? I dont know yet as mine is finally going to start this week..... I went for the 1 bar spring as i only intended on around 18psi BUT now they are looking to run 20psi i am not sure if the spring needs to change or if the boost controller does the work?

Roy, why no EBC?

  • 2 weeks later...
turboedsloth Grand Master

turboedsloth

Posted
Posted

17psi = 22psi. but lowerd to 20 with a bit of timing taken out.

I had the same with a 44mm Tial and td06-20g.

I would run a 10psi spring Troy and go from there

R31Nismoid Grand Master

R31Nismoid

Posted
Posted

Turbosmart gates have always been like that.

I remember my 45mm Progate from 6-7 years ago was sitting on 14psi with 18psi of spring (big/small) in it.

Just have to trial and error on most setups

Roy Grand Master

Roy

Posted
  • Author
Posted

Yeh, because this isnt helpful

http://www.turbosmar...springchart.pdf

Will just throw my SBC ID back on and do some secret squirrel cheap as mods to get the boost into it

From what I am reading re Vipec the closed loop boost control isnt great so, since I have E85 going ok on the Power FC I am less convinced I need to go to another ECU

R31Nismoid Grand Master

R31Nismoid

Posted
Posted

Yeah it's only a "guideline" in all the things I've seen, it's usually close, but by no means 100% accurate.

Just did a squirrel mod to mine and took it from 17psi to 24psi no problems, held perfectly - long as you get it as close to target boost as possible to eliminate gate creep you'll be fine :)

scotty nm35 Grand Master

scotty nm35

Posted
Posted

Final boost levels depend on the pressure in the exhaust manifold and the size of the wastegate so every setup is different.

I have a fabrication job on at the moment, split pulse GT3076 on a 6boost running twin 40mm turbosmart gates. Not much room down there, I hope he has the right springs in them...

post-63525-0-16758000-1339501075_thumb.jpg

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