affinitee

I'm currently piecing my 10th AE back together....
I want to know out of the T04 family of turbos, Which one spools
the quickest?

HWO

it all depends on the EXACT trim of the exhuast turbine, the A/R of the exhaust housing, the compressor and the compressor housing.

it's like saying which green crayon is greener than another green crayon

affinitee

I was thinking either the T04R or the T04E 60-1....
I don't know much about either turbo that is why I was asking....

AJC13B

Get a 60-1 with a .70 front, P trim rear and a divided 1.15 housing and you won't regret it.

Kurgan

This is what I am putting on this winter. I have the turbo and it has been on my car since June, but I'm gonna put the 1.15 divided housing on it now. I believe that when you order the turbo, you should specify that you want a tangential exhaust housing... I've seen people use an on-center housing, but you have to bend the wheel well... Plus, I've been told that the tang flows better, but I don't have any proof or anything... just plenty of people have told me that.

When you buy a divided housing, you want to match it with a divided manifold. Hear, your only options are 1) custom 2) cast iron divided manifold from SRX7. (these are the only options for an FC that I know of)

I'm going with a custom made, tubular manifold.

affinitee

So I should get a T04E with 60-1, .70 front, P-trim rear with 1.15 divided housing and a custom manifold....
I have heard a great deal about this setup....
About how much HP should I expect????

AJC13B

Anywhere between 300 and 600 depending on boost, engine, manifolds, intercooler etc etc....

affinitee

I plan on hitting 425 rwHP @ 15 psi....
Is this possible with T04E configuration???

FEARED7

I have a t62 on my t2. It made 323 at the Rear at 11 PSI. When the temp dropped outside, the turbo would make about 15 psi. It was night and day differance. At 15-18 psi (it was boost creeping a little), I raced an 11.4 @ 122 car. I had to let out on him! lol He pulled me over, and asked me what the hell I had done to the car... I doubt it was 18 psi, b/c I was on pump gas and I had 4 720s in the car. I would say i was making about 15-16. This could be a bad thing, but I never looked at my boost guage to see how much I was running. I just added a bunch of fuel! It felt good b/c the turbo never fell on its face. My specific turbo was designed for 425 RWHP.

Specs:

60-1 compressor
.50 To4e Compressor housing
7 degree clipped P trim Turbine wheel
.81 Tangential turbine housing

later, Bryan

affinitee

Did you bolt that T62 to a fresh rebuild???
Or did you bolt the turbo in????
What size injectors, I/C and wastegate are you using????
Is the T62 is bigger than T04E????
It sounds like your engine is worn if it isn't hitting at least 400....

AJC13B

Maybe 17 or 18psi.....

affinitee

What do you have to do to the system to be able to to run over 15 psi???

carcrazy

Most likely, the one with the lowest a/r...

The 1.15 a/r will spool slower than one with a .96 a/r.

Also, the one that spools faster will most likely be less efficient at higher speeds. You have to ask the the question, where do you want your power band to be. Strong power on the bottom or mid or the top? Efficiency is the name of the game or not.

regards

Rick
1993 RX-7

HWO

Hey Einstein - last time i check the 0.96A/R was a single entry housing, while the 1.15A/R is a divided A/R housing, now the 0.96 on a non divided manifold and the 1.15A/R on a divided manifold, the 1.15 will spool at the same time the 0.96 will, possibly even quicker depending on the manifold.

wonder1and

I've got a T04S set up and I dont go to the track street only. Its fully spooled at 4K and the T04E spools a little less that that because of its smaller intake inlet. Jason @ rx7 store told me that a guy pulled 450 out of a 13b @ 18psi on the T04S. Thats what I'm going for as soon as they are done putting in my new engine!!!! If you have iny more Q&A's PM me.
Ryker

affinitee

Wonder1and....
Your right about the T04's being able to hit 450 rwHP....
Greg and Crispeed are hookin me up with a custom tubular manifold...
I was told that the manifold will be made specific for the turbo....

Question:
What mods are going to have to be done to support over 15 psi???

20B_FC

There's a T04E 60trim and T04B 60-1. These are two very different compressors. The T04E series in general are more efficient at higher pressure ratios, but are fairly small for rotaries. The typical 60-1 is a much larger compressor. Check out turbonetics compressor maps:

http://www.turboneticsinc.com/comp_maps/fig1.html

Paul K

machinehead

?That's funny! They said the TO4E kit they sold me was a .96A/R housing and its devided... Carcrazy I think they told you the same thing, that's where you got that number from, but I just double checked and HWO is correct, they don't make a devided housing in that size... its either .84 or 1.0... most likely .84.How can they manufacture a "custom" kit if they don't even know that Garrett doen't make a .96 devided housing