hi all just wonderin if anyone can help me on this one? i have read on here that people are boosting averagely 14 psi is that on stock tubs? i have an original boost gauge and it goes up to 7 yet the needle only ever reaches 4? im no mechanic, if anybody knows why this could be could you explain in laymans terms please. thankyou:confused::confused:

hi all just wonderin if anyone can help me on this one? i have read on here that people are boosting averagely 14 psi is that on stock tubs? i have an original boost gauge and it goes up to 7 yet the needle only ever reaches 4? im no mechanic, if anybody knows why this could be could you explain in laymans terms please. thankyou:confused::confused:

 

 

what have you got bud?

 

jap,uk?

 

al.

il measure how good my standard gauge is tomo,

 

iv got the standard one, and a Greddy gauge,

its a jap import auto (unfortunately)

thanks z32 how hard was the greddy to fit?

+7(x100?) is then in mmgh or whatever is same as would be 14psi on uk dials. should boost upto 3/4 of the scale which sounds about right 9psi is stock

Edited October 14, 200817 yr by 8ace

yeah thats right it is in mmgh (dont quite know what that stands for) would it be easy to boost it anymore or would it nacker the engine in any way?

mercury microgrammes or something(atmospheric pressure like used on barometers or something that though weather people used)

you can boost higher(upto 14psi on stock injector apparently) if engine and turbos brakes in good nick etc but will need to chip the ecu for a wider fuel map or it'll run lean and get shagged rather quick

Edited October 14, 200817 yr by 8ace

would i have to have it remapped too? any ideas where i can get a chip from?

DTA andyp or others. DTA does the socketing too he's on here in the trading section costs around the £100 mark socketed and chipped with appropriate maps. Then to raise boost either a boost controller or jets do a search on here there's loads of options do you research and take your time(it'll pay off in the long run) The engine and turbos need to be in top condition and higher boost levels will shorten their life.If it's a jap import autobox coolers are usually recommened as they get hot the jap ones are crap and built into radiator.Also colder plugs are a good thing.(you may need induction and free flowing exhaust again will need to be researched) Leave it stock you know it makes sense ;)

Edited October 14, 200817 yr by 8ace

4.65 mmgh on the jdm dial would be 9 psi which should be you stock boost level just used one of those online pressure convertors

hey cheers for advice i will defo look into it, where could i get autobox cooolers from and could any local garage fit them? thanks 8ace

zcenter do them also one of the traders on here do them not sure which one though. Finding a good garage is another thing. jimmer is the man in the south and zextreme up north i'm sure others can recommend someone in your area.

thanks z32 how hard was the greddy to fit?

 

easy mate.

 

a boost gauge is a boost gauge. (however id prefer a top quality gauge to ensure accuracy)

 

hardest part is putting the 1 wire through the firewall, which isnt that hard.

just put it through the bonnet catch.

 

then it just T pieces into a cable by the standard strut brace thing.