i am in the market for a new turbo and was looking at various one and need help understanding what it means when they say stage 3 or 5 wheel.

is one better than the other? i was looking into this...

any thoughts? i dont know which wheels to get 3 or 5



T3/T04R BIG KAHUNA
compressor: TO4R

.70 a/r

66.5mm inducer

flow: 75 lbs/min 960cfm

360* thrust bearing standard

turbine: T3

your choice of .63a/r or .82a/r housing

your choice of stg3 or stg5 turbine wheel

 

Stage 3 and Stage 5 refer to the size of the turbine wheel.

Stage 3 = 2.229" exducer with a major diameter of 2.559"
Stage 5 = 2.439" exducer with a major diameter of 2.798"

Basically, a Stage 3 turbine will spool quicker at the expense of lower power potential while a Stage 5 will be slower to spool but will offer greater power at higher rpm. For a compressor wheel that can flow 75 lb/min, a Stage 5 would likely be more appropriate.

 

ok great thats what i wanted to hear.

now how bout that turbo above?? any one have any experience with it?

 

With the stage 5 it is essentially a full-race t3/67

 

I can't believe that garrett is actually producing that combination. A stage 3 turbine w/ a 67 compressor wheel.

btw, the "t04R" is the HKS name for a turbo that uses that compressor wheel, it is the same wheel also known from FR67 and PT67 fame.



Modified by DIRep972 at 10:21 PM 6/25/2004

 

if you dont reach full boost with your s61 till 6000, have fun with that snail.

Landon

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boosted_dc2 &raquo;</TD></TR><TR><TD CLASS="quote">if you dont reach full boost with your s61 till 6000, have fun with that snail.

Landon</TD></TR></TABLE>

Right, its quite the large turbo.

If I remember you correctly your friends with 60-1's are outpowering your similarly setup sc61. I think you have a lot more room to go on the sc61 before you start upgrading turbos, but what do I know.

 

I just ordered the same turbo from Ken @ Cheapturbo.com. It's already on it's way! Can't wait.

I got the Stg 3 wheel, after speaking to them we decided on the 3 wheel cause of my setup. I got the .82 a/r on the exhaust side. I think this turbo will work great on my setup.

Post up more info about your setup???

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B16A1-EF9 &raquo;</TD></TR><TR><TD CLASS="quote">I just ordered the same turbo from Ken @ Cheapturbo.com. It's already on it's way! Can't wait.

I got the Stg 3 wheel, after speaking to them we decided on the 3 wheel cause of my setup. I got the .82 a/r on the exhaust side. I think this turbo will work great on my setup.

Post up more info about your setup???</TD></TR></TABLE>
see the only issue with the stage 3 wheel is, the compressor will get up to speed and keep you way left of the surge line...
so expect some surge down low... until you get into the upper rpms you will have the constant surge factor...
but hey, if the guys at cheapturbo.com say thats the best bet with the .82 then im sur you will be happy with it...
that t3t04r is a sick comb with a stage 5 .63a/r
the stage 5 turbine will bring you onto the map from about 4k to red line.