Rogeyboy

iTrader: (2)

I have a T3 in my garage with .48 written inside the exhaust housing, what does this mean? Also the comp wheel looks slightly larger than a standard t3 wheel...

Twins

iTrader: (18)

Its a larger exhaust housing ,i have one on my turbo

Rogeyboy

iTrader: (2)

Like a Stage 3 unit?
What diff did the larger housiong make to your car twins?

Karlos G

iTrader: (4)

0.48 is what you find on stage 3 T3's yes and a bigger comp wheel.
It allows for a greater max BHP but at the cost of spool up time.

Rogeyboy

iTrader: (2)

Well i'll get it rebuilt n get it on, i hope it don't delay spool up much. Im on standard comp so that should help...

drl

dont stage 3 turbos have a 0.63 exhaust housing?

Versus_Creations

iTrader: (1)

Check it does not have any cracks.

MARCOSWORTH

iTrader: (24)

Could be standard Cossie one

Karlos G

iTrader: (4)

T34's do and on a 1.6 CVH they would make boost about 5500rpm! lol

drl

ok so am i right in saying that a standard turbo would be limited to a max of 180bhp because of the 0.36 exhaust housing, but why would a 'stage 2' turbo be capable of more than 180bhp if it has the same size (0.36) exhaust housing as a standard turbo? is it because it has a 360 bearing?

Karlos G

iTrader: (4)

No, a stock T3 will flow about 180bhp because of the compressor wheel size, a stage 2 has a larger comp wheel as well as a 360deg thrust bearing so can flow for about 230bhp and at that point the 0.36 exh housing becomes restrictive.

SafeChav

I know its been a while for me but i was certain the .63 is a larger housing in comparison to the .48?!

Karlos G

iTrader: (4)

Yes it is, what are you thinking?

drl

i replaced my turbo on my s2 as the oil seals were nackered for a refurbished standard t3 unit but it doesnt pull as hard as the turbo i took off, is there a way of checking the size of the compressor size because im pretty sure it was an uprated one? its got 'garrett air research' stamped on the outside - does this mean its a turbo technics turbo?

Karlos G

iTrader: (4)

IIRC To check the comp wheel size you would need to take it apart mate.

SafeChav

If you can measure the inducer (can be done without dismantling) you should be able to identify the compressor wheel trim from the Garrett listings

juffer

What do you mean by inducer? looking into the compressor there is a "step" is it this you are talking about?

xr2wishy

iTrader: (2)

look up turbo trim in google and you'll find what you need either on a garrett site or mitsubishi one.
to measure accurately the wheel sizes, you need to remove the compressor housing, dead easy six bolts and it'll all go back on no bother, doesn't remove anything balanced.