Hey i got my turbo today heres what i ordered.
t3/t04e .60 a/.r 57 trim stage 3 .63 a/r 360 deg thrust
heres what i got:
t3/t04e .50 a/r 57 trim stage 3 .63 a/r 360 deg thrust and water cooling.

Is there gonna be a big difference between the 2 housings? Is it worth returning? keep in mind i paid nothing for the water cooling option. I just hope there really is a 360 bearing in there. What do you guys think?

thanks
[edit - pics]



says .50 a/r on comp .63 a/r inside turbine...does that look like a 57 trim wheel?


Modified by BlueSi2k at 2:59 PM 6/23/2003

 

nice snail, bump for bud

 

larger a/r compressor housing will support more engine air flow (x-axis on compressor map) or displacement
i've compared same compressor wheel but different a/r housings..
it looks like the smaller a/r will be more efficient for smaller displacement and support more boost

If I stayed 1.6 ..I would stay with the .50 a/r, it'll be more efficient.

 

your compressor is about 10% smaller and that turbo will onyl support around 350-375 wheel power max. the .60 wth a 57 trim woudl have supported around 450-500 wheel power. See the difference? They screwed you Send it back and demand what you ordered... Never settle for second best.

 

anyone else?

 

how can you say a .1 diferance in copressor a/r is worth 100 hp?

that sounds ridiculous to me.. both turbos have a 57 trim compressor.

a 57 trim compressor flows a max of 49 lbs of air.. even if he lost 10% of flow it should still be good for more power than you are quoting

 

don't tell me, talk to the turbo manufacturers. they gave me that info.
A .50 is "usually" a T3 housing or a t04b instead of a t04E. The .50 us a much smaller housing and the trimmmed wheel is still smaller than the .60 whick also flows more air. around 50cfm more. the compressor maps for the .60 57 trim is also way more suited for the bigger hp numbers than the .50

and if nothing else, He was promised a .60 and got a .50

 

https://honda-tech.com/zerothread?id=544807

there is a great comparison from this board

 

those are exhaist or a/r maps not compressor maps as we are discussing. here is a couple of maps shown on the 57 vs 60 trims. not the 60 trim is way higher and much more agressive?

57


60
http://64.225.76.178/catalog/compmaps/fig16.html

see the .50 housing is about 10% smaller. but it flows like 100 cfm less than the 60 housing is what i have been told in the past. He would gain an extra 100 cfm at peak points just by using the 60 housing.

if he isn;t building the motor to a full race setup or radical street trim, then it will suit his needs.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by oscarmayer &raquo;</TD></TR><TR><TD CLASS="quote">those are exhaist or a/r maps not compressor maps as we are discussing. here is a couple of maps shown on the 57 vs 60 trims. not the 60 trim is way higher and much more agressive?</TD></TR></TABLE>

im confused
Why post a compressor map of a .60 wheel trim compressor,
when we are talking about the a/r housing for a .57 trim compressor?
wheel trims make a world of difference, the a/r does not..

 

I just measured the wheel and verified that it is a 57 trim. So would swapping for the .60 a/r housing benefit me at all?

 

oscarmayer - you are confusing compressor trim with a/r..
he would have the exact same compressor in either turbo, just with a different a/r which is the inlet/outlet ration on the housing - that basically moves the power band around rpm wise..

as far as swapping for the .60 a/r you would get a little more lag, but a little more top end power.. if it were mine I would want the bigger a/r (I dont mind turbo lag), but most people think a smaller a/r is better for street applications... power will come on quicker..

 

maybe I am I don't know right now, too dam tired. hehe

I dothink using a 60 housing and gettign that extra 100 cfm is better than not having it.

 

Care to explain the advantages of 360 degree thrust bearing?

 

the otehr bearings are only 180* thus only allowing for pressure around 1 side. This is usually acceptable for lower boost levels such as 5-7 and sometimes up to 10 depending on what maker and type of duty it will span, but for performance applications where we are hitting it hard when it engages, you need thwe 360* for it to be able to take the engagement pounding and last longer.

I'm not that fimular with the innards of the turbo's themselves to provide more info, but i'm sure someone here can offer more.

 

looks like your turbine wheel is smaller than a stage 3

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Paul_Vang &raquo;</TD></TR><TR><TD CLASS="quote">looks like your turbine wheel is smaller than a stage 3</TD></TR></TABLE>

anyone else think this? can i measure this too?

 

I thought the stage III's had 10 blades. Looks right to me, but it has been awhile. I maybe you've seen too many stage V's those are huge..

 

whats your boost range?

 

how did you measure the compressor wheel? what measurement do you look for to verify whether you have a 57 trim or 60 trim?

 

goal is right around 300 whp maybe 350 max. 7-9psi daily low boost 12psi high boost.

compressor wheel info is here: http://64.225.76.178/catalog/comp_wheels.html

I just used one of those rulers with the two sliders. Dont feel like taking turbine housing off...can anyone verify that its a stage 3?

 

Take the turbine housing off and measure the wheel. That's the best/most accurate way.

Sonny

 

Ah you got a water cooled turbo! That should be mine!

 

whats up with the water cooled option yo. give me some insight

 

how does the water option work?