I went single a few months back and have been sorely dissapointed

I miss the twins and my single setup has an external waste gate which is making me deaf ..


I miss the instant response of the twins but at the moment my turbo is starting to smoke and I'm wondering if someone can help me out with a replacement


I plan to get an bw efr but that's out of my budget at the moment

I'm wondering if someone may have some input on a turbo that can achieve maybe 330 whp at 14 psi with an internal waste gate as I'm switching to that

But still have very quick response any advice would be welcome

 

You could have your wastegate dump routed back into the exhaust to minimize the noise.

 

if after going single you are not smiling the problem lies in the details.

there are a million reasons for lag many not having much to do w the turbo.

how about starting your need for some help in this matter with helping the people that can help.

what turbo? what turbo manifold? intercooler? ECU? tune? post some pictures of your setup. the more info you post the more quickly you will find your answers.

as to noise, Andre is correct... there is no reason not to plumb your wastegate back into your exhaust.

as to EFRs, they are not the sole answer to midrange power, there are many other options that would do just fine for you that cost a lot less.

post some details and we will try to help you out.

Howard

 

100 percent honest it's an eBay setup my twins blew at a very bad time for me and I just said meh can't be any worse than blown twins and the single does run alot cooler and isn't absolutely terrible , but I also have clearance issues with the waste gate it hits the chassis with engine vibrations

The sound yes it can be routed into the exhaust and I've debated doing that

But I've always heard that internal waste gated turbos were more reliable as well as better spooling

3RD GEN Mazda RX-7 FD3S TURBO KIT T61 T4 VBAND 1993-1997, Turbo Kits, XS Power Inc.. this is the current kit it's honestly... wellll not exactly quality work I hate the manifold it's so difficult to work on

I hate the turbo it's not that terrible when it comes to lag it spools at 3k

And the wastegate is quite obnoxious .

I can deal with it , but I definitely miss the twins even if top end power is definitely in favor of the new single

 

its all in the proper setup. look into a IWG efr turbo with a new manifold and you will be happy

 

Listen to what Howard said..

IMO it all comes down to a proper configured setup.. You must first know what your goal is and then base your setup on that. An EFR is not in everyones budget but there are plenty of other alternatives you can look into!

If you have a good manifold and a properly sized turbo for what you have in mind you could end up having a lot more fun with your single. It's all in the proper planning what you want and choosing the right parts to get there. As for the sound, like already is said.. just plumb the WG back in the exhaust and put a decent silencer on your exhaust.

Spool up times is not solely dependent on your turbo but manifold design can play a huge role in this as well.. invest in a good manifold as this is the biggest factor that decides how fast your exhaust gasses reach your turbo.

 

that hole kit is what i will pay for just my turbo... you get way you pay for.

 

I'm wondering if someone may have some input on a turbo that can achieve maybe 330 whp at 14 psi with an internal waste gate as I'm switching to that

But still have very quick response any advice would be welcome


The whole Ebay kit is garbage, don't use a bit of it.

So, now you need everything.

Simple, cheap answer is-
S5 TII Stock Hybrid.

Fully divided T25ish manifold and turbo with 1:00AR and dual internal wastegates.
57mm 60-1 compressor, your choice of exhaust wheels up to "P" trim. On the 13B-REW/RE you don't even have to use the little "HiFi" compressor cover so you get 10% more flow right off that bat than the 13B-T users (all the TII dyno graphs you will see).

The smaller manifold/turbo exhaust passages really give the stock hybrid great spool compared to a T4 manifold/turbo exhaust housing. It is like how Turblown uses 1.5" pipe instead of the usual 2" pipe for the turbo manifold for better spool.

The 60-1 compressor provides great efficiency at relatively high flow rates and low pressure ratios.

I did 340rwhp on mine at 10psi creeping up to 11psi and 380rwhp on 14.7psi boost- though I did have 60mm external wastegate which surely helped power (typically ~30rwhp loss on a 400rwhp rotary with re-routed WG or internal WG). But the larger compressor cover will help power that much on your set-up.

Everything bolts right on except the turbo oil drain to the front cover will need a little modding (could just cut FD tube and put a section of hose to FC tube).

Only "problem" I ever had with mine in the 13 years I used it was I insisted on using full 3 1/2" turbo back exhaust and with no cat or pre-silencer or anything and it had boost creep.

If I just put my 3" catback section on the 3 1/2" downpipe/midpipe or ran with an exhaust tip silencer/reducer gasket at the rear it didn't have boost creep. I insisted on "fixing" the boost creep while keeping the 3 1/2" turbo back exhaust and had to port the manifold/turbo out to T4 size runners up to the 60mm WG which killed the great boost response it had.

Most the TII guys with stock hybrids don't have that great turbo response, but they usually have crap intake, crap intercooler and crap exhaust. If you do a stock hybrid up like a single turbo it is VERY responsive.

Its like Howard says. Everything attached to the turbo/engine is as much a factor than the turbo itself.

 

a used set of stock twins may have been the best route until you were ready to pay or for the proven EFR kit you really wanted.
My suggestion is to be patient and get what you want even if it takes time. You ha e seen the result of shortcuts and half measures. In the end you have to buy it twice to get you where you wanted to be in the first place.
The RX7Store GT35R Kit may have been a better way to go if you had a strict budget.

 

i second what blueTII posted. you may want to try a T04E-60 compressor side, with a p-trim hot, which should spool faster than a 60-1, and top out at 350whp at 15psi. its compressor cover will clear the LIM too

 

I have exactly the setup that the guys above are mentioning. It's not on a running car, and is actually set to be full boost ~3k RPM and have instantaneous response. 54 Trim T04B (U or V Trim, I honestly don't know) Compressor and P-Trim Turbine Wheel on a Honeywell CHRA. G-PopShop special request porting on a S5 Turbo II turbine housing and Turbosmart IWG-75.












For you, I'd simplify things. Just go BW S200SX-E: BorgWarner 12769095003, BorgWarner AirWerks S200SX-E 52/57mm 300-650 HP Super Core Turbo Assembly | BorgWarner

Or BW S300SX-E: BorgWarner 13009097056, BorgWarner AirWerks S300SX-E 320-1000 HP Super Core Turbo Assembly | BorgWarner

 

Possibly a holset hx52 ? I'm running one on my s4 6 port with 9:4 rotors and mazdatrix street port . The turbo for me at 10 psi is full boost at 4500 and wants more . HAs billet internals to help with spool . Rebuild kits are around $60-100 bucks . I got my on flea bay for 250 shipped used . Has a t4 based flange kinda . Is a few millimeters longer and just took enlarging the 2 holes elongated style . There's many people that know more then me here . Just figured it a option after reading .subscribed for so learnin .

 

YOU can get the s200sxe for 705 shipped with turbine housings from thmotorsports. got mine.

 

are those bw turbos compatible with t3/t4 parts? they will bolt up to a T3/t4 hot side? i wonder if you could swap the center section for water cooled

im building an FC, trying to decide between hybrid or tempted to give an EFR7163 a try

 

do eet, i wanted to get the s200sxe super core and mount that into an s5 housing but its 70mm and the stock housing is???

 

G-PopShop.

Tell them Ryan @RGHTBrainDesign sent you. That'd fit easier than my p-trim (76mm)!

That's why I'm like...well shoot, I could just about fit a S300SXE into my currently ported housing and be safely making 550whp.

 

omg. and i can get the 7670 sxe supercore for less then $550. 300ft lbs at 3500 rpm here i come!!

 

Is this source something you can share or it is a favor only type deal? Cause I'd like to know lol!

 

shared it all over th motorsports./

sorry 630 shipped..
BorgWarner S200SX-E Super-Core UNIVERSAL for the 57 mm compressor 7670

491 shippped
BorgWarner S200SX-E Super-Core UNIVERSAL for the 52mm compressor. (7070)?

the 70mm turbine housing are only $115...

the plan is to run one.. test it out.. then by another and make them TWIN SEQ! big single twin seq conversion.. lol.

 

if you are really gunning for response i wonder what kinda spool that 52mm compressor would have..
also it leave its most efficient island at 35 lbs. the 57 does so at ~42..

 

My current turbo is dead (deformed turbine housing, damaged turbine blades) forcing me to get something else if i want to drive the car this summer. Ive been looking at the EFR kits, but they are so darn expensive and would take weeks before i get the car going again.

Im currently running a middle (yes, middle, not mild) street port, ID850 /ID2000 injectors, V-mount, 3" exhaust, pump gas (planning on meth), Haltech PS1000 and was pushing 450 whp before the turbo gave up. Would say a S200 be a suitable replacement? Or maybe a GT35R with a T4 1.06 house?

Dunno about the condition of the engine, was planning on opening it up to perform a check up, but if compression is OK, would you say there is no need to open it?

Sorry if i might have gone Off topic

Thanks

 

i should see my s200sxe 7670 any day... and a month later i will let you see the dyno for yourself. if you can wait that long. and i dont loose my compression on my 3 peice oem apex seals.. i wonder if i should change them out while it still starts..nah

 

Is the wastegate adjustable and is it adjusted correctly or was it set to make the biggest WHOOSH?

 

bov go woosh.

 

i have a 58/66 precision turbo and I have 340 horse and 300 torque at 14 psi. I am just finishing up a crankcase vent issue but drove it and it was fun. spooled quick and kept power through the rpms. only thing it that this is not a common build. I bought from shawn from A-spec performance for autox and this is what he said would be great for what I am looking for. In town it is great but long travel above 65mph would be lil crazy being in boost the whole time, crazy fun that is. woo. also running duel turbosmart 40mm wastegates and have a exhaust manifold and 4" downpipe built by gleasman which is a forum member out of canada.