i want fast spool at around 3000-4000 rpms and at least 500hp or more. whats the best turbo for me? its a totally stock mazda reman engine and im tired of the twins

 

The best turbo to do what?
a. Drive on the street
b. Drag race
c. Road race
d. Autocross
e. Texas mile
f. Drift

 

mostly drive on the street on low boost and the occasional drag, autocross, road race on high boost

 

i also will have the car tuned for e85 if that helps

 

GTX35R... that's my guess

 

The 61/82mm cast compressor is already limited by that turbine on a rotary, so you suggest a more expensive higher flowing compressor with the same turbine when half of the people on this board are going to P trim wheels with the cast standard wheel to get more top end?

At least garrett's marketing is good.

If you want new roller bearing in that size if you want Borgwarner and plenty of flow (larger ceramic bearings, large internal divided wastegate, stainless turbine housing, tougher lighter turbine which is supposed to spool quicker than a 35R) EFR 83S74, or to stick with garrett, GT3788R or GT4094R.

 

http://www.turblown.net/store/index.php?productID=65

http://www.youtube.com/user/Turblown.../2/hHhyIK_uCtc

15psi made 450rwhp on my own car( different than above & attached photo)
Also made 24psi by 3400rpms( 4th gear pre-loaded on dyno, stock ports different engine than show)

Attached graph of a street ported engine @ 22psi

Car makes a ton of torque, I see cars on here make near 600rwhp that make the same as this...

 

gt35

 

where is the EFR 83S74 sold? it sounds very interesting

 

We sell them. We are suppose to have 4 of each T4 version( with and w/o internal waste-gate) at the end of this month. They however have been on back-order for 6 months.

So I don't get a flood of emails the non-wastegate T4 unit is $2020 + freight, and $2200 for the internal wastegate T4.

 

would you say the EFR 83S74 is better than the gtx35r? i also heard it has a built in bov

 

In theory it does look better. It has a better wheel ratio than a GTX( EFR has a bigger turbine wheel). I would still run an external waste-gate to be on the safe side. Not sure if the built in BOV is going to flow enough either..

I am not aware of anyone with real world experience on a rotary...

 

t04z

 

who are you?

 

I have Gt35r T3 with stock ports, i dont realy see any power untill 4500. if you want low end go with stock twins sequential

 

I want to stay far away from twins. Does anyone know how the spool is on the efr 9180?

 

Could you share your target boost, wastegate spring rating, exhaust setup?
Engine will certainly feel soft till such RPMs, boosted or not. But still it should produce some noticable power, much earlier...

To the OP, no one will answer your question regarding EFR stuff. At least untill someone will test it. Very light turbine wheel should enhace transient responsiveness. Othe features doesn´t have such performance impact. By looking on compressor maps, they are better suited for high pressure ratio applications.

As already stated, GT35R is undersized on turbine for rotary application if you want utilize all compressor flow, even more so is GTX.
Best bet would be GT35R compressor mated to P-Trim turbine, already posted by Turblown. Or you could go with Borg Warner stuff. They generally have much bigger turbine than Garrett stuff on similiar sized compressors - better for rotary application.
S360 or S363 will cover your goals and they are cheap.

 

Mobe, once this weather clears up you should bring the car by IRP. Let Dr. Huk check out your setup and make sure it's all good to go..... you should have good low end with that turbo

 

did some reading on the holset turbos fast spool at low rpm and alot easyer on the wallet just got a hx35w for 75.00 will make easy 500hp with supporting mods.]

 

You bought a turbo for 75 is it boosting good? What is a holset?

 

the holset turbo is from the 5.9 desil motor

 

Did he mean $750?

 

im using on my rb25det it can b used on the fd to

 

they can found for that cheap in good condition im geting two more read up on the hx35w dsm guys also use them.

 

Full 3" exhaust, magnaflow mid pipe, racing beat single tip. 15psi hallman boost controller- 12psi wastegate spring..
The turbo spools @ around 3k or so and the car moves but like I said the real raw power don't hit till 4500+ by 6k+or so is the sweet spot. Originally I purchase this T3 kit to have low end power but I guess it didn't work out like I expected.

I actualy have an ignition issue that I can't figure out. I will pm you 4 a day