Sgtblue

iTrader: (16)

I'm probably looking at replacing my stock twins within the next year or two. Would you elaborate a little on this? How extensive are the modifications?

GoodfellaFD3S

iTrader: (213)

With all of my engine and manifold porting, Bryan expects me to max out at about 420 rwhp at 20 psi, roughly. He tells me that the turbine manifold will end up being the restriction. You are correct, these turbos are designed for 17 to 19 psi all day.

Low boost.....I was making a crosscountry trip from TX to NJ the next day, and didnt feel like pushing the envelope. Plus, it was a 100 degree day, and the car had been on the dyno for base tuning for like 3 hours---heatsoaked like a **** and high boost don't mix.

Rich

GoodfellaFD3S

iTrader: (213)

Oh, also......you are only in CT, once there is clear weather we should meet up halfway and you can see these bad boys up close and personal .

GoodfellaFD3S

iTrader: (213)

Bryan takes care of it all for you, you just have to send him your y pipe in addition to the twin turbo assy. No problem at all. You get them back and they bolt right up.

Rich

SPOautos

Who does??? You cant get dyno sheets from Greddy or Garret, ect on thier turbo kits. They might give you some off the wall max based on compressor map flow sheets, ect. they are arent rotary spacific and they dont tell you anything about powerband, ect. The only reason we know what other turbos make is because of customers that have purchased them and dynoed them. The same will happen with these BNR's, he's been selling tons of them its just that no one really has thier car finished and bug free. Well a few people do but they are waiting on tuning.

Bryan knows what these turbos and compressor wheels are capable of because he has built this similar turbo setup for other cars. The restriction will be the exhaust manifold not the turbos, they will definatly max the exhaust manifold out. Also....stay tuned sometime around mid year of '05 because there MIGHT be some upgraded goodies that can be purchased for the stage 3's to really get them making power (cough exh manifold caugh caugh). But you didnt hear that from me (hear what? I didnt say anything). Yes, I've been begging and pleading for about a year for this and I think its fixing to happen pretty soon.

Huh? what might happen, I have no idea what your talking about. lol


Stephen

FDNewbie

iTrader: (10)

Stephen, IT'S ABOUT TIME lol. I remember I talked to you about this like 8 months ago, and I talked to Rich about it a few months back, too. You're *def* gonna run into restriction from the exhaust manifold well before you max out the flow of the stock twins. The stock twins can flow a lot, as evidenced by the similarly sized Supra twins, yet their manifold and runners are designed so much better, that they have less turbulence and restriction, and thus are capable of producing so much more power.

I'm pretty confident you can make 450 to the wheels w/ an upgraded/hi-flow exhaust manifold on the BNRs. I really think it's doable. I just think it's a shame that it's taken practically 11 years for someone to make a hi-flow exhaust manifold...

I know RE just came up w/ a design a few months ago, but they haven't released it yet, since they kept on having problems w/ it cracking I believe.

rynberg

More than just the power, I would like to see the reliability issues solved with these turbos.

Stephen and Rich, I know that Bryan has treated you guys right and you have loved your modded turbos, but EVERY single BNR set I've seen in person (five, I think) has either had horrible oil leaks (not restrictor pill related) or other problems.

And I KNOW other forum members have had issues with the BNRs as well. The reliability is the important factor to me, not whether the new ones can make 15 more rwhp.....

GoodfellaFD3S

iTrader: (213)

Hellooooo Tyler

No smoke, no drips. You are thinking of the old style BNRs, which were rebuilds and upgrades. These are brand new turbos upgrades and no rebuilding at all, thus no more problems.

And 15 rwhp is a bunch of poop......these new ones are torquier and have the potential to trap 125 mph on pump gas, while my stockers topped out around 112 mph. 13 mph increase is a hell of of a lot more than 15 at the wheels

Rich

FD3SR1

what other mods are needed to run the bnr stage 3 twins? fuel ecu ect?

AgentSpeed

No leaks, drips, or otherwise for me either. All I'm waiting on is tuning, my breakin is all but finished.
To answer the question on page 2, I'm only shooting for 15psi because that was my goal for this set up. I wanted a real nice streetable car that I could enjoy without pushing too much boost. I asked Bryan for a good reliable engine and turbo set up that would produce at least 350hp @ 15psi with all my other mods. After talking, we decided on the stage 3's. Now that my car is built, Bryan and I both are sure we passed my goal! I don't think anyone would be disappointed with these turbos.

GoodfellaFD3S

iTrader: (213)

I think that's a very wise decision on your part. 350 and 15 psi are #s that should keep the car running well with no problems for a long time.

GoodfellaFD3S

iTrader: (213)

If you kept the boost down you could prolly run them on an otherwise stock car.......but what's the fun in that ? You will definitely need porting, fuel, intercooler, ecu, clutch, etc to take full advantage of their capabilities.

FD3SR1

whats the most rwhp anyone has pulled out of them? at what psi?
they are cheaper then 99 spec twins and from what little i have read i think they are alot better and more reliable im just not sure if i want to spend the kind of money to go single or stay twin

matty

thansk for the invite and that sounds like a great idea. i would love to race u even. However i am putting the car away on saturday. If you can meet saturday morn that would be cool, if not spring time would be the other alternative.

FD3SR1

does BNR have a web site? if so what is it?

rynberg

Hey Rich, the new turbos sound more like it...

Oh, and my 15 rwhp comment was addressing the differences between the "old" BNR Stage 3 and the "new" Stage 3s. I know the Stage 3s are a significant upgrade over the stockers. Since my turbos are getting close to being tossed in the scrap pile, I need to start looking for options -- preferably smog-stealthy options like the BNRs....

What mods are required to the y-pipe? Compatible with the Efini?

AgentSpeed

He takes the y-pipe and extends it to make it fit with the longer set-up. Where the two pieces are put together, he cuts and welds in a spacer. I think you just send him yours when you order a set.

Jerk_Racer

Sorry to crash the party but in my last 7, an '89, I had a BNR Stage 2 with all the bells and whistles. After driving with a BNR built turbo, I have nothing but praise for his turbos. It was built for a nice mid-range for autocross and daily driving duties and never gave me any issues. Leaking? Not a drop. He does good work no matter the turbo.

SPOautos

Find out how those people had thier crank case vent set up. I've talked to a few people that had smoking issues with the old ones and they all ended up being fixed by seting up the crank case differently. Basically, instead of running it to the uim with a one way valve just run a hose (or two) from those oil filler neck nipples down to the intake (before the turbo). That way the intake is constantly sucking on the crank case and it stays in vacume so that the oil can drain out of the turbos. Actually any dynamic seal turbo could run into this problem of needing better crank case vent. I've seen some brand spanking new dynamic seal Garrett single turbos that smoked like crazy and I fixed it in 5 minutes by redoing the crank case vent. I didnt have this problem with my old stage 3's and the people I know that had thier crank case like mine didnt either.

If you know anyone with smoking issues (no matter what turbo's) tell them to try rerouting thier crank case before doing anything drastic. It only takes about 5 minutes to do.

Also, if rerouting solves the problem you might want to add a catch can so that any junk that might come from the oil filler neck gets caught in the can and not into the intake.

I've heard of some 13B race cars that acutally had to run two -8 lines from the oil neck to the intake to vent the crank case enough. I think the larger the ports the harder it becomes to vent the crank case.

Anyway, just thought I'd throw that out there since it might help your friends.

Stephen

HDP

iTrader: (2)

Um, Stephen, the crank case is vented to the intake before the turbos. One of the nipples on the plastic primary inlet elbow should go to the filler neck unless it has been modified.

GoodfellaFD3S

iTrader: (213)

There are 2 nipples on the oil filler neck. One goes to a hard line that goes to the prim turbo inlet (as you describe) and one goes to the uim with the pcv valve in-line (as spo describes).

Rich

su_maverick

unless its a 95 where the pcv valve has been eliminated.
I just ordered my Stage IIIs and bryan should be shipping them back tommorow. I was going to go with an upgraded fuel pump and upgrade the secondarys to 1300cc. Am I going to need more or is this fine?
I have not ported anything yet.

FDNewbie

iTrader: (10)

Ditch the 1300s. While it may not be 100% established, people have reported 1300cc injectors sticking, and someone not too long ago posted how he lost his engine due to the 1300cc injector sticking, AND he had the KDR anti-det mod at the time. That's a risk I just wouldn't wanna sit w/. Besides, you'll leave yourself more flexibility for whatever future plans may arise w/ 1600s. That's my opinion.

su_maverick

leave the primaries alone?

FDNewbie

iTrader: (10)

Some guys use the stock 500s, some guys run 800 primaries. I think 500 pri and 1600 sec is more than enough, unless you ever plan on running some incredibly HUGE single...BUT, I'm sure someone who's much more knowledgeable (Stephen, Rich, etc) can provide you w/ something more concrete.