hey guys... just a quick question to ask anyone who is running a turbo is has run a turbo on the for 3.9/4.0 Litre engines

what size turbo's are you using and when do they spool/come on boost?

i'm mainly after exhaust and compressor housing sizes...

1.06 / 0.7 .... etc...

.84 turbine with a 62mm wheel
.70comp with a 64.5mm wheel
it starts boosting around 2200

if u are bying a turbo get a gt3540 with a 1.06 turbine housing

or a t04z with a .84 or a 1.00 turbine housing

Yeah both my cars have 1.06 rears... but both drive differently so dont get too caried away with turbo sizes, there's a million other factors that come into play in regards to drive- ability.
But the above mentioned turbos will suit you well.

thanks guys...

i got a mate telling me a .82 rear ball bearing turbo would be a good size for my motor... and i trust him coz he knows his s**t... his car is evidence of that... but i'm after something that would atleast start to produce some boost around 2200 or so and be full noise by 3000...

i've got a crappy turbo atm.. which i will use to see how the car reacts once it's all built.. and can then make decisions about what turbo to go for... rather then going out and spending a fair whack of money on something that may not suit my needs... atleast thats what my mate said.. heh.. coz i wanted to get a decent turbo before it's all bolted up... but i can see his side of reason...