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Jason Thornton
Tinkerer
N.S.W
n/a

Posts: 96
Reg: 04-2007

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 Friday, July 18, 2008 - 07:50 pm, by:  Jason Thornton (Jay9959) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
Hi i know this is a strange question
what would like to know if it can be done
with the std setup.

Std ct12a turbos std wast gate actuators
is there any way that i can lower the boost
so its can be adjusted around 5psi-14psi.

Like i said strange question.

Cheers Jay
Ben Socratous
Goo Roo
SA
I am the fibreglass/kevlar/carbonfibre king!

Posts: 1733
Reg: 07-2005

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 Friday, July 18, 2008 - 08:12 pm, by:  Ben Socratous (Socrates) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
Sorry mate, you can't lower the boost. The minimum boost level is determined by the rating of the actuator. Standard actuators? Then 10psi is the lowest you can go.
Jason Thornton
Tinkerer
N.S.W
n/a

Posts: 97
Reg: 04-2007

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 Saturday, July 19, 2008 - 07:56 am, by:  Jason Thornton (Jay9959) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
Thanks Ben that's what i thought.

Minimum boost on mine is 1bar looks like
actuator change so i'm able to adjust it.
Maurice Diggler
Goo Roo
Victoria
TR44 HF

Posts: 1920
Reg: 06-2006

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 Saturday, July 19, 2008 - 05:00 pm, by:  Maurice Diggler (Mau_rice) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
Natural boost on my car with all my mods on stock turbos was 14-15psi as well, it's what happens when you do breathing mods. :-)
Barry Main
Tinkerer
Victoria
TT Manual

Posts: 12
Reg: 05-2008

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 Saturday, July 19, 2008 - 05:27 pm, by:  Barry Main (Barry_m) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
Does anybody know what the boost is meant to be on a completely standard 1JZ - no mods whatsoever?

And can anyone tell me at what boost the fuel cutout comes in?

Would Maurice's turbos, which are showing 14-15 psi, be getting close to activating the cutout?
Daniel Clarke
Goo Roo
NSW
TT 2.5L 6 cylinder

Posts: 3727
Reg: 03-2006

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 Saturday, July 19, 2008 - 10:59 pm, by:  Daniel Clarke (Dieseltrain) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
Boost cut will be seen from 13.7psi to 14.5psi...

Stock boost on an unmodded 1JZ should be 9-11psi.

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