Whats everybodys take on this turbo lookin for 300hp or close to it.
Set up will be
Blox or SFP mani
3'' dp and exhaust
RC injectors
JRC 6''
tial wg
Neptuned
pnp head with crower 402-t/valvr train
stock short block

 

The compressor will do 300whp, but no reason to get a 0.82 A/R housing, especially on a low revving B18B.

A 0.48 A/R housing will handle 300whp without a problem, and probably knock off a whole 500-700 RPM on the spool. If you're really worried about "choking it up"(which a 0.48 A/R T3 housing won't do), go with a 0.63 A/R at the biggest.

There's no reason to have a T3 backside that can handle 600whp of flow on a 300whp setup...

 

with the crower cams he can rev to 8k

 

get the biggest turbine housing you can, its gonna spool super fast as it is with that tiny turbine wheel. Its so small you wont see much diff in boost htreshold rpm between housings but you will notice it not falling off up top.

 

Even a cam'd B18B acts like a smaller displacement SR20DET IMO. It wants to make the power in the midrange, so let it.

I've seen over 350rwhp through a 0.48 A/R T3 housing and 600rwhp on a 0.63 A/R T3 housing(both with Stg3 wheels). So while there is maybe a few HP difference between the housings, just run 1 psi more boost or something to make up for it. The spool difference WILL be noticeable.


I guess different strokes...

 

he didnt say, but most 60 trim t3s have a stg1 turbine wheel which is a massive restriction. Even on a d16 you can feel it fall off unless you have a .63. I have seen a couple with stg2 so i guess that would help extend the power band a little.

 

Well I plan to rev to 7400rpm and no more cuz stock sleeves so just stick with the .63 ar

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Bailhatch &raquo;</TD></TR><TR><TD CLASS="quote">he didnt say, but most 60 trim t3s have a stg1 turbine wheel which is a massive restriction. Even on a d16 you can feel it fall off unless you have a .63. I have seen a couple with stg2 so i guess that would help extend the power band a little.</TD></TR></TABLE>

he is talking a super 60 though, totally different turbo, its a turbonetics turbo with a t4 cold side wheel in a t3 housing, don't know about what the hot side wheel is but I'm sure its probably a stg3 unless special ordered

this is so confusing when everybody calls 60 trim turbo's super 60's

 

Just stick with the .63 ar and you will be fine. I ran both .48 and .63 on my teg and i really liked the .63ar. But i think .82ar is a overkill for the power you are trying to make.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hoggy &raquo;</TD></TR><TR><TD CLASS="quote">he is talking a super 60 though, totally different turbo, its a turbonetics turbo with a t4 cold side wheel in a t3 housing, don't know about what the hot side wheel is but I'm sure its probably a stg3 unless special ordered

this is so confusing when everybody calls 60 trim turbo's super 60's</TD></TR></TABLE>

Turbonetics makes a "Super" 60 trim T3 compressor wheel, which AFAIK has a slightly larger inducer than their regular 60 trim T3(so it's not actually a 60 trim I think). I guess they called it that for marketing reasons. It flows just a tiny bit more than a T3 60 trim.

A Super 60 wheel is completely different though, which is what you're thinking about.

 

A .48 a/r on a stg 1 is a lot more restrictive than a .48 on a stg 3 but everyone thinks they know because they had a .48 once blah blah...A/R means **** unless we know what wheel is in the middle.

So what turbo do we have here? the mopar esq t3 super 60? or some t4 wheel in a t3 housing? I found several T3 supers 60s with stg 2 turbines but I have seen a few sold on ebay that were stg1 and probably only regular 60 trims since i didnt measure them. Until we know what the turbine wheel is, suggesting an A/R is pointless.

 

Well turbocalculator.com has a T3"Super"60 with stg 1 wheel, but Turbonetics have a T3"Super" 60 with stg 1,II,III,IV,Y wheel options whould the turbonetics be a better option. Oh this is a Striaght t3 not a T3/T4 hybrid

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Bailhatch &raquo;</TD></TR><TR><TD CLASS="quote">A .48 a/r on a stg 1 is a lot more restrictive than a .48 on a stg 3 but everyone thinks they know because they had a .48 once blah blah...A/R means **** unless we know what wheel is in the middle.

So what turbo do we have here? the mopar esq t3 super 60? or some t4 wheel in a t3 housing? I found several T3 supers 60s with stg 2 turbines but I have seen a few sold on ebay that were stg1 and probably only regular 60 trims since i didnt measure them. Until we know what the turbine wheel is, suggesting an A/R is pointless.</TD></TR></TABLE>

I know all this, but it's simply a different way of looking at things. I like using a turbine to its maximum potential to get as much midrange as possible. That's *OBVIOUSLY* not how most people on H-T.com approach turbo sizing, but that's fine, just a different mindset.

The geometry in this case matters more for when the turbo will spool more often than not(when dealing with similar wheels like this at least), so I'd say the 0.48 A/R is fine, and just spec the wheel you want for the flow. I personally think a Stg3 wheel is too much for this compressor given the major diameter difference. A Stg2 might be an option if you want a little more topend at the expense of a little slower transient response and slightly higher spool.

 

So the stage of the wheel in the turbo will have more of an effect than the turbo trims. All I'm lookin for is some fat midrange and top end.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by six7one &raquo;</TD></TR><TR><TD CLASS="quote">Well turbocalculator.com has a T3"Super"60 with stg 1 wheel, but Turbonetics have a T3"Super" 60 with stg 1,II,III,IV,Y wheel options whould the turbonetics be a better option. Oh this is a Striaght t3 not a T3/T4 hybrid</TD></TR></TABLE>

turbocalculator.com, let me tell you what will happen if you purchase something from them... in stages:

Stage 1: you pay for it
Stage 2: you email one another a couple of times... mostly you asking if it was shipped yet, or if there is some sort of tracking number.
Stage 3: you begin to recieve no responses, and wonder if it'll ever come.
Stage 4: accept the fact its not coming and begin looking into a legal resolution.

My friend is currently in stage 4. And he was VERY PATIENT with it, its been about 6-8months now since he's paid.

so think twice before dealing with turbocalulator.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Def &raquo;</TD></TR><TR><TD CLASS="quote">

I know all this, but it's simply a different way of looking at things. I like using a turbine to its maximum potential to get as much midrange as possible. That's *OBVIOUSLY* not how most people on H-T.com approach turbo sizing, but that's fine, just a different mindset.

The geometry in this case matters more for when the turbo will spool more often than not(when dealing with similar wheels like this at least), so I'd say the 0.48 A/R is fine, and just spec the wheel you want for the flow. I personally think a Stg3 wheel is too much for this compressor given the major diameter difference. A Stg2 might be an option if you want a little more topend at the expense of a little slower transient response and slightly higher spool. </TD></TR></TABLE>

yup you are right, most people on H-T tech want to mimic the NA powerband of the motor just greatly magnified. I find a stg1 wheel even on a D16 to be an absolutle pig up top. The midrange is more than responsive, almost too touchy but the top end is flat. I agree that a stage 3 is a little large for a 60trim t3 so i would suggest the stg2 with a .48 in this case. should give low boost threshold but still be able to use that compressor past 6k without fighting a restrictive turbine. An external WG, positioned properly, would do wonders for exhaust pressure in the manifold too.

 

so what do you guys think a stage 5 wheel with a .82 hotside would do power wise? and how would you think it would spool?

 

sorry to thread jack like the last guy, but im want to use a t3/t4 57trim, 60/48. But im only want 300whp. I DO NOT want my power to fall off up top and do NOT want it to run flat after 6k. Which stage should i get? I will be keepin my stock LS rev limit btw.

 

I'm using a T3 .60/.48. Not sure what stage wheel it is. It's this turbo http://cheapturbo.stores.yahoo.net/gat3su.html, but with a .60 a/r comp housing instead of the .42 pictured. Pulls pretty well and if you look in my sig it does not look like it's going to fall flat on it's face anytime soon. My rev limit is actually 7200 so I should be making a little more power than seen there.