zensation

iTrader: (2)

So ive decided to bit e the bullet a do a single turbo build this winter and im starting to buy all the pieces I need but I have some questions I figured I would ask on kitting. Specificall I am looking at both the gt3574 kit from A-spec and the turblown tdx61 kit. So far im really leaning towards the tdx kit but its so expensive. From what I can tell the quality is top notch however Iand if it came down to it I wouldn't mind spending an extra 1100 for the better kit but as far as specific questions:

1) does anyone have enough experience to compare the two directly or is there another kit that uis a variant of the gt35 that I should look into?

2) Im looking to do a custom radiator and intercooler setup and looking at the koyo radiators. there is a lot of info on the forums about koyo in general but from what I can tell there appears to be 2 different koyo radiators for the rx7. Is one of them more drop in and one more custom mount? if so which is which part number wise?

thanks for all the input in advance guys

tt7hvn

iTrader: (5)

I can't really provide input on that turbos.

But for your v-mount setup, koyo does offer 2 different types of radiators that are dimensionally the same but "cool" differently. The N-flow is a 2 pass radiator while the other one is your regular off the shelf single pass. Both are considerable replacements over the stock but if I were to buy one it would be the n-flow. Both of them are considered to be drop in replacements but you will find out that neither of them really will drop in to the stock location without some slight modification.

Also, do you plan on keeping your air conditioning? that is another consideration to take in when going v-mount. Right now, Greddy makes the best v-mount kit. Albeit, expensive, it is the most complete and drop in kit you can get right now. It will fit perfectly, attested by members of this forum.

MOBEONER

iTrader: (18)

Go borg warner and save your self a ton. I run a Gt35R with upgraded compressor and if I can do it all over again I'd go BW.

zensation

iTrader: (2)

Ok thanks for the radiator info thats exactly what i was looking for. I just bought an n flow and I will be doing a custom v mount or vertical fmic install whichever one lets me keep the ac. i need it down here in SC haha. I work at a company and we have all kinds of massive sheet metal fab machines turrets forms and breaks I can use to make whatever mounting brackets i need.

hmm the borg warner is something to consider however i think may be out of my price range for a pieced together kit. I honestly don't know a whole lot about the ar's and combination turbo or the lingo and there seems to be too much for me to learn in a short amount of time but I spoke with Eliot from Turblown and he was super helpful in aiding me which turbo to go for (thanks Eliot!) anyways I think I will be going for the tdx61 kit unless something big changes in the next day or so.

silverTRD

iTrader: (37)

Eliot can put a bw kit for you, probably cheaper than the tdx61.

xshawn801x

iTrader: (7)

I have the gt3574r and its great, Im at 406hp at 13psi. fully spooled around 4k rpm

shawnm565

iTrader: (3)

I love my bw EFR iwg turbo kit from Elliot/turblown/turbosource. I had the tdx61 turbo and it is a great turbo dont get me wrong but the simplicity of the EFR iwg turbo is just awesome. Plus I felt the response of the EFR iwg over the TDX61 was far superior as well. Here is a video of me waxing a few v8s & even a slightly modified GTR - http://m.youtube.com/watch?v=TfGWd7Dv8-0 . I was so happy how my car performed this summer.

Here is the link to the EFR iwg kit - http://www.turbosource.com/mobile/Product.aspx?ProductCode=TS-FD3SIWG

Also here is the tdx61 -http://www.turbosource.com/mobile/Product.aspx?ProductCode=TS4-23-84650

Over all both are great kits!

mannykiller

iTrader: (93)

I've got some experience with the GTX3582R and I now run an EFR8374 externally gated unit. In terms of build quality on the TURBO'S only.... I really feel like both Garrett and Borg Warner Make quality hardware. But I can say that you won't find anyother Turbo as user friendly as the EFR. You said you were doing a custom v-mount......if I read correctly? Well part of that is going to be configuring a good position for turbo outlet...INTO the Intercooler. It was a bit of a pain with the GTX. With the EFR.. it's a giant Vband...with one nut to tighten the compressor housing. It literally takes less than a minute to adjust. Meaning, less then a minut to take off the compressor housing entirely... and another minute to put it back on entirely ready to boost hard. You can't do that with the GTX. My point is..that the EFR is really user friendly and by far the most well thought out...highest performance turbo on the market.. In my opinion. In terms of Performance.. the TDX is a great turbo. But again... it comes down to engineering and the Borg Warners Gamma-Ti wheel has no comparison. Response was instantly improved with the EFR. People Love the sound of "Spool" but the slow build up into boost is now almost entirely un-noticeable on the car from within it. Instead... It's replaced with what seems to be Instant Boost response and the sound of the engine full tilt. I got to see a few videos of my car from distance and you can definitely hear it spool...but the car just plain rips. There is no more waiting for spool... Theres power everywhere. I actually dyno'd my car at a shop out here in CA called lucky 7 Racing. The owner has a couple track cars. But after my dyno session He text me and said he was ordering an EFR for his race car because he's never seen anything like it on a rotary before.

Both of these turbo's are at the top of the list in my opinion. But hands down the EFR wins.

In terms of manifold and or piecing together a kit? Well i've pieced together two kits on my fd. And i'll tell you what.... It took months to figure and make sure everything fit. And then another two months to replace things that were engineered by myself....that might've been off here or there.. or inthe first case.. just not optimal. This latest kit I pieced together is essentially a turblown Externally gated kit. Turblown oil lines/drains and externally gated manifold. Just my own 4" down pipe. ^Shawn up above has the kit... and my car may be louder than his... But his is faster haha.

So Either Option on turbo's eithe rthe TDX or the EFR is up to you.. But do yourself a favor and go with one of Turblown's kits.

zensation

iTrader: (2)

awesome info guys! all these posts get me so amped to make my purchase... part of the reason I like the tdx61 was that it sat higher up in the engine bay it looked like, therefore making the turbo possibly easier to install. It sounds like the efr kit maybe just as user friendly if not more so...This throws a lot of new info into the mix, thanks a lot lol. this is my supporting mod list so far:

- 850 primaries 1600 secondaries (from what I hear from eliot I may just sell the 850 primaries and retain stock primary injectors for tuning purposes)

- Power fc ecu

- koyo N Flow Radiator

- Greddy FMIC (that I will possibly turn into a custom vmic but I havnt decided)

Im not shooting for through the roof power (hopefully ill be around the 400 mark) but more so looking for response, and Im only running stock ports right now so but a better turbo kit now makes down the road upgrading a bit easier, so I get the point of spending a little more now.

zensation

iTrader: (2)

Dang man! what was your dyno numbers like and what are your supporting mods?

silverTRD

iTrader: (37)

The borg warner kit will be easier to install if you get the iwg version than the tdx. Even tho it sits lower. It's just more simple all around.

Have you bought your injectors yet? I'd use stock primaries and get ev14 2000 secondaries, or the ID version and skip the 1600's. The new injectors give a better pattern and give you room to grow.

What fuel do you plan to run? Ignition?

zensation

iTrader: (2)

for now im running stock ignition just due to budget of $8500 ( I know its not ideal but this will be an ongoing project). I have the injectors already I know that the id2000 are probably way better but that's just what I have to work with for now. I will be running 93 pump gas as this wont be a track car just a weekend show and go. maybe ill see where this all gets me first then ill see about upgrading fuel and ignition later. later unless I find someone that wants to buy the injectors from me my fuel system is as follows

1680cc injectors, unknown secondary fuel rail, injector clips for 1680s, SX fpr, jegs fuel pressure gauge, braided line, an fittings, primary fuel rail and injector resistors.

Maybe throw out some suggestions for upgrading the ignition system as I havnt even begun to look there yet...

shawnm565

iTrader: (3)

Our best was 486hp/454tq

The mod list is at the end of the video btw! I was having ignition issues at the top end so the HP is lower then it should of been for the boost I was running.

RENESISFD

iTrader: (13)

I think you should get a cheaper turbo and upgrade your ignition and ECU. Those turbos are nice but without the right supporting mods you are wasting your money.

zensation

iTrader: (2)

Yeah I'm debating that as well. What are recommendations for coils. Should I go with the hKS twin power?

RENESISFD

iTrader: (13)

If you keep pfc then stick with a twin power any other ECU go direct fire and use aem ign-1a coils.

lOOkatme

iTrader: (19)

Simplicity wins.

EFR8374 IWG (cheaper than other ball bearing options).

Make your own fuel lines, FPR, 550/650CC primaries with 2000 secondaries EV14. Supra denso pump

Simple water injection kit for safety
Not sure if you need a clutch or not, ACT HDSS or twin plate semi-metallic sprung disc.

Stock coils, twin power, NGK 9's all around.

Run the car around 350-400WHP at 14-17PSI boost.

Tune the car to run leaner mixtures cruising, ramp AFR's down with load for better spool, water injection at 6-7PSI on up.

I run the same set up but I have a GT3574R with .84 hotside. I am at high altitude and the turbo is ok, wish it spooled more quickly and sooner like the EFR8374.

3rdgensleeper

iTrader: (10)

Hey bud, looks like you are heading in the right direction here and the guys have really gave you some good info to go off of. From my experience I will also add the EFR will be your best option. The GTr line you have to remember you are paying for the name as well, BW isn't as proud of their name as other companies and puts the value into thier products. The EFR will be a turbo that will last you a very long time and have solid results time and time again. To further drive the point of simplicity, the EFR being all built in wastegate and BOV less things to take up room and / or fail in the engine bay. Piece of mind is priceless. Elliot's kit is by far one of the nicest kits I have seen/installed that's on the market. Hope this helps, and feel free to sell that PFC and put an adaptronic ECU in there

zensation

iTrader: (2)

Haha thanks for the info! I would have gone adaptronic but i got a killer deal on the pfc that i couldnt pass up and i called rotorsports before i bought it because brian has tuned a bunch of them. He was telling me to go ahead and get the pfc and that itll work plenty good with my plans for now....

buuuut I just bought the tdx61 kit i was looking at the efr and the mid sized one that i wouldve wanted from eliot was gonna cost about a grand more so i decided ill just be happy with what i can afford (which still wasnt cheap i might add).

also the fuel kit that i bought has the resistors inline to the injectors but i know thats not the propper way to do it from signals class in engineering school. it changes the actual power that the injector is seeing sooooo i found an injector driver thats made for racing and its 75% cheaper than buying plug and play secondaries from idx so i plan on doing that but my question for those of you that have messed with the fuel system is how to tell the positive wire from the negative ground pulse ecu signal wire at the injector clip without the car being on. does anyone know the wire schematic or can you tell by color or stripe? thanks in advance

lOOkatme

iTrader: (19)

Bosch EV14's don't need resisters or anything inline because the are high impedence already.

Why not skip and go with these?

zensation

iTrader: (2)

I may do that I have the part number and a friend that works for Bosch that is already checking to see if they get a discount on them. If she does it maybe her almost 90% discount so I might stock up for anyone else who wants them

zensation

iTrader: (2)

Had the opportunity to meetup with a forum member selling a set of oem mudguards for $100 today which was a pretty good deal i thought, but he also was single turbo gt35r with greddy fmic...i must say that car was rediculously fast. like holy sh**! fast a couple of things i notices was that the lag was not noticable enough for me to custom mod my fmic into a vmic..ill probably just do whatever is easiest. but man now i cant wait....

I also found out who worked on my engine last (UPR in maryland) and gave them a call to find out a couple of nice surprises.

1) The engine was rebuilt less than 5000 miles ago and the shop said its probably not even through its break in period yet.
2) It was rebuilt with rotary aviation super seals that they said were good up to 600 hp somewhat reliably
3) It got a street-port which means that my turbo kit will likely make between 450-500hp

needless to say i was exstatic

zensation

iTrader: (2)

What clutch do you guys recommend for me to upgrade to? not sure what clutch is in it now, the engine has been pulled ported and rebuilt less than 5k miles ago should I just wait until this clutch starts to fail then replace? ive done plenty of clutches on Nissan z's in the past and honestly this tranny looks way easier to get to and remove than those cars.

Skeese

iTrader: (11)

If you are still thinking A-Spec and planning to get it done this winter you need to order sooner than later. From what I've seen the final product is top notch, but the wait does suck. I'm 5 months in now and still waiting.

IRPerformance

iTrader: (41)

ACT ZX6XTSS is the best option for your power goals without going to a twin disk. I stock them.