88turborx7

iTrader: (1)

Hey all, I've done a search on the subject and have come up with a bit of info but what I would like to know is if these turbos form BNR are any good? I have a S5 turbo and manifold and I would probably go for their Stage 4 job. It just seems like a lot less hassle and far less $$$ than going with a full t04 (which is probably superior) setup with having to fabricate a bunch of stuff. I am not trying to set any world records or drag my car, just get some decent all round performance out of the car.

RETed

And I assume you already have the appropriate fuel mods to support that kinda power?


-Ted

hondahater

iTrader: (2)

I should be getting my stage IV back from him early next week and i'll let you know what it dynos when I bring it to gatham racing to get it tuned.

rotorforce

I am doing the stage 3 on my Mild Bridge TII and Ted is right you need the proper fuel support. I was looking into the RTek upgrade for highly modified applications and will be adding two additional injectors via the HKS TB inlet with injector bungs. Or perhaps 1600cc on the secondary fuel rail instead of the usual 720 upgrades.
There is alot involved including the fuel flow and pressure regulation.

adrock3217

A stage 3 BNR is way too small for a bridge..far too inefficient...

88turborx7

iTrader: (1)

Well, my car has been off the road since August 2001 and I am in the planning stages for any upgrades. I have a rewired Walbro and will of course be using larger injectors, I was thinking maybe 720 primaries and 1000 secondaries. I haven't decided either whether to use a simple S-AFC or a Haltech/Wolf standalone. Like I said I am exploring possibilities which is why I am asking questions first. All opinions would be greatly appreciated. Since my car has been MIA for 5 years I haven't been following the forums much anymore.

turbine

iTrader: (1)

its gonna be a the best bang for your buck, but if you can scrounge up another grand i would get rid of the stocker.

gxlbiscuit

i love my BNR.. year warranty too.. not that ill ever need it...

rotorforce

Is that smaller than a TO4E? Thats what I was running before. I had rotorsportsracing upgrade the intake side several years ago and it was very fast until I sold the turbo for money I needed at the time. (those days are over)

So should I use the stage 4?

adrock3217

I don't know anything about the TO4E, I THINK that's the turbo Tofuball bought from Myk, and I would expect the stage 3 to be smaller then it...


Hybrid's don't belong on bridgeports, in my opinion...If a streetport'd FC can spool a GT35R with ease, then a bridge deserves either that or a 40R....


EDIT:
Just asked Myk. Yes, the TO4E IS bigger than the stage 3 + 4...

rx7idgit

Not to jack this guys thread, just didn't want to make another related one with this one also on the first page. I was wondering with RP fuel pump, r-tek 1.7 ecu(550 primarys 720 secondaries), and a safc-II it would be safe to run a bnr stage 1 or 2 turbo, or if not what else should be done considering I don't want much more than like 9 psi. And are the upgrades car or turbo specific?

hondahater

iTrader: (2)

yeah should be fine.

rotorforce

The stage 4 is a 60-1 compressor wheel. Judging by the t60-1 on my friends TII thats alot bigger than my To4E.


T60-1 Turbonetics

TO4E


Does anyone have the stage 4? What size is the intake inlet?

BLUE TII

iTrader: (9)

I have a BNR Stage 4 based off a S5 TII. I have been very happy with Bryan's service and his work and amazed at the performace of the turbo.

It is a 400+RWHP capable turbo so make sure you have the fuel system to handle it. I have 720cc and 1600cc injectors and a Walbro and need to upgrade my fuelpump to run over 15psi boost.

The stage 4 uses a 60-1 compressor in a T04B .60 AR compressor housing as the T04B compressor is the largest that will fit in the stock location.

The Stage 4 uses a larger T4 exhaust wheel in a bored out stock housing that really helps it flow on the top end compared to the smaller T3 sized stock exhaust wheel. It can still spool very well. My set-up with a clipped P trim wheel was hitting full 15psi boost by 3,500rpm.

RETed

I think you were the one trying to email me through my website?
I apologize for not answering, cause the mail server is nasty on there.

As for the stand-alone question...
How much power are you looking to make?
I put the cut-off boundary at around 300hp or so at the wheels.
If you shooting for more than 300, a stand-alone is highly recommended.

Also, it comes down to budget.
The full turbo upgrade is a lot better, but we're talking serious cash here...
$300 for HKS cast turbo exhaust manifold ($100 if you want to go cheap with the SSAutoCrap stuff)
~$500 for a good sized turbo
The rest you'd have to do anyways...
~$500 minimum for an FMIC set-up
~$500 for a big fuel upgrade

If you can spare the extra $500 or so, go full turbo.


-Ted

hondahater

iTrader: (2)

you forgot the wastegate price ted add about 180 to 350 for a wastegate and really if you want to go full turbo upgrade make it worth it and get a better turbo then a 500 dollar turbo. That will only get you around a 60-1 and that won't yeild you that much more than a stage IV.

RETed

Doh!
Sorry for that!
hondahater is right - you need an external wastegate.

I've been working with smaller GT-series turbos with internal wastegates that I totally forgot about that one important bit!


-Ted

88turborx7

iTrader: (1)

Yes that was me

I would like to shoot for 350RWHP. The BNR Stage 4 is $750, and a full turbo would be about $1500. What would be a good choice for turbo size then. I was told that for a stock ported engine a 60-1 HIFI w/ a 0.81 or 0.84 P-Trim turbine housing would be a good choice. If street ported or larger, 0.96 A/R w/ a full 60-1 will work. Wouldn't I also need to change my exhaust to a larger diameter as well? I believe that custom oil cooler lines would have to be fabricated right? In this case I would definetly go with a Haltech or Wolf, any preferences here? What would be appropriate fuel mods besides my rewired Walbro and larger injectors? I was thinking 720 primary and 1000 secondary but after looking at other peoples mods I think even larger secondaries might be needed.

RETed

I prefer to go with the biggest turbo you can afford and turn the boost down for your needs.

(Full) 60-1, T04E "60", or TS04 will all work well.
They are all about the same size and produce similar power levels (~400hp at around 15 - 17psi).
Any should be able to hit your 350 target at around 10 - 12psi.

A 3" exhaust system can easily support 500hp, so I wouldn't worry about the exhaust system unless you're running smaller?

Haltech versus Wolf3D?
Is that a trick question?
I prefer Haltech systems myself.


-Ted

RETed

If you haven't poked around my website, I have a From Mild to Wild section which details what I recommend in terms of upgrades when looking for more power...


-Ted

88turborx7

iTrader: (1)

Well, I am running the stock size which I believe is 2.5" ?