When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
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
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.
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
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.
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.
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 .
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.
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?
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
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.
05-01-16, 12:20 PM
