kwikrx7

Wow these thing are a work of art. Bryan isn't exactly the quickest at getting your turbos back to you but I attribute that to him taking his time and being very meticulous. He painted the manifold black and the turbos the normal silver color - they look as if they were new. The compressor wheels he actually machines to the point they are about as light as the stock wheels. They are also much more aggressive. I was supposed to get these installed today but things got changed. They're going in August 13th and will dyno the same day. Plan on doing some runs at 10,12, and 15 psi. I'm hoping for some good numbers. But they are works of art, now let's see if these things put out some power.

GoneSilent

Do you want to run 15psi after you just installed them? If I just paid 3k for set of turbos those suckers would have at least 400+ miles b4 I got on the boost. Dont forget to change your oil after a few miles on the turbos.

I wanted to add the paint is just for show, You will never see again, looks better then you sent it out sure. BUT give that paint 1000 miles and you'll have nothing but flake on your hands.

Mercury

Are they painted or are they cermic coated? Did you get them cliped? From one source I hear that they can make 400hp to the rear when tuned properly. I cant wait to see your dyno sheet.
-m

itrdanny2001

i think the paint will be fine. most of those paints used are also used on brake calipers and they're good up to around 2000 degrees farenheit.

bee

turbo manifold - paint.. Ive never herd of any paint that can withstand that kind of heat.
Good luck with the turbos though, you should post some pics of them.

7-UP

I've been away from the Forum for awhile. What's the deal with these? Are they putting out as much hp as a single or what? I'm very interested because I'm hesitant to go single because I'll have to register my car in a different state in order to pass emissions.

Holla back with some good info

Thanx

kwikrx7

I was mainly commenting on how they came out since what I sent him was basically almost garbage - 98K miles on the turbos I sent him - they look like they came back brand new from the factory - especially the turbos themselves. The only BNR hybrids ever dynoed pulled down 386 rwhp at 15 psi WITHOUT a clip. It had a mild port, a PFS IC and the normal bolt-ons running sequential. Clipping the wheels should add 10-15 rwhp so I'm hoping to be higher than 386 rwhp. I have a full non-sequential setup in the engine bay and the hybrids are setup to run parallel. Should be fun - can't wait to run down a few Z06s After the installation of the turbos I'm going to drive around for awhile (normal driving) to break them in some. Then tune it with datalogit up at KDR and start some dyno runs. I don't think I've seen a decent "upgraded twin" dyno sheet posted on the forum - let alone running parallel. It should run like a medium sized single turbo. I'll let everyone know when I get full boost by and the works. There's some pics that were posted a few days ago in the 3rd gen forum under "BNR turbos are completed" - something like that - they are sweet.

kwikrx7

[QUOTE]Originally posted by GoneSilent
If I just paid 3k for set of turbos those suckers would have at least 400+ miles b4 I got on the boost. Dont forget to change your oil after a few miles on the turbos.

By the way I didn't spend even close to $3K for the hybrids. IMO you have to be nuts to spend $3K on any twin-turbos for a FD - even $3K for a single seems to much for me. These were an alternative to going single and since the upgraded wheels are about as light as the stock ones, there won't be a problem. Running them parallel is even better for the lifespan since there is no power surge at transition and no heat built up in the secondary when driving in town constantly. Bryan and I worked out something where if I posted a dyno sheet with his turbos and shoed the potential of them then I got a discount - he's very knowledgeable about turbos - even has a patented turbo in progress - should be interesting.

jspecracer7

Hey Kwik!

Post pics of Bryan's work. I'm dying to see what you got...

7-UP

Running 386rwhp with sequentials? THAT'S DAMN GOOD!!!!!

I'm not a maniac but all I want to do is get my rexy up to 400-420hp and I'm done.

But the sequential setup must be running hotter than hell!!!!!! Is it passing emission?

What does clipping of the wheels entail? That's a new one on me.

kwikrx7

I forget how to post the thread but I posted it a few days ago under "BNR twins have been completed" - it has 3 huge pics of the turbos - pretty sweet. Clipping increases your top-end power by like 10-15 rwhp from what Bryan said. It affects your low-end a little. HP is hard to come by once you get past 350-360 rwhp on the stock twins. Even an extra 30-40 rwhp at the same boost setting is well worth $1650 for a set of Stage 2 HTB turbos from BNR.

zayrx7

i have dyno my car with a set, it dyno 292 @ .7 lbs of boost. But I had a problem with the first turbo coming on line, when i dyno I have the sheet if anyone won't too see it. I was also running a little lean. So I stop the dyno. I think thats pretty good for one turbo.

tomaszjc7

If i send in my stock turbos to b&n for the 2nd uprgade, can i put them back in a NON-sequential...??? is that a good idea

7-UP

THANKS kWIKRX7 BUT I STILL DON'T KNOW/UNDERSTAND WHAT THE PROCESS OF "CLIPPING" MEANS OR HOW IT IS DONE.

sorry for the caps. Lock was on.

forcefed1

When a turbo wheel is clipped, the tip of the turbine blade is cut down/clipped so it's a slightly smaller outer diameter. Usually the wheel is clipped on an angle so It gradually is slightly smaller. The advantage to clipping is more top end power because the exhaust gasses at high flow have less back pressure from the turbine. Rather then hit the turbin and be forced to spin it, exhaust gasses can just pass right over it. The dissadvantage, under lower throttle lower air flow situations the gasses can go past the turbine without being forced to push it resulting in a slightly slower spool up. With a sequential setup, I feel it makes good sense to clip the secondary wheel as the losses will be negated by the primary wheel that is unclipped and the gains (some HP) will be there in the secondary turbo.

7-UP

Great explanation forcefed1!!!

Thanx

SPOautos

Just to clear up a little something, I'm not sure how long the black paint will last on the man. BUT the turbos are NOT painted....they have been glass beaded!!!!! The look VERY nice by the time he's done with them.

I'll be looking for that dyno sheet when you get it, how long will it be before you hit the dyno? The "project" twins are going to be tested on my car!!!! Cant wait!!! haha

STEPHEN

SanJoRX7

https://www.rx7club.com/forum/showth...threadid=97324

There's the thread w/ the pics.

j9fd3s

iTrader: (3)

a friend of mine dynoed 387 rwhp @17 psi on the stock turbos, with the stock airbox. the engine is ported, and it has a dp, mp, and cat back.

mike

SPOautos

i hope he has a little more than that, like say ecu, IC, upgraded fuel pump and injectors. If not he is going to pop that baby. Surely he has the other mods needed.

Also, for a comparison the 386 pulled on Brians twins was at 15psi which is well within the efficiency range of his stage 2 twins. That translates into being much easier on your motor. The heat generated by twins running 17psi is unreal and VERY hard on the engine and stock turbos.

STEPHEN

j9fd3s

iTrader: (3)

yeah thats right he's got a fuel pump 1200cc secondaries, and a power fc

mike

kwikrx7

Well, I decided to wait and dyno the car after I break the turbos in for about 500 miles of little to no boost. I'll keep it set at 10 psi. I'm thinking that 10 psi should be like 13 psi on the stockers. I'm waiting for Dave to get back to me on a date for my dyno run appt. I'm thinking early September but he is pretty busy so I'm not sure. Even if I only get 20-25 rwhp out these turbos I'll be happy. I might do a run at 17 psi to see what numbers they can pull down.

Stephen, those turbos Bryan was telling me about (secret weapon turbos) sound amazing. Wish I had those for my application since they will spool fast.

twstd rx

I'm waiting on the secret weapon turbos as well. Bryan spent 30 minutes explaining them to me when I ordered a stage 3 SPEC clutch from him last week.

SPO, I'm jealous and quickly becoming a BNR convert.

Andrew

FEARED7

I appreciate the good words everyone. I hope everyone stays happy!

As for the "secret weapon turbos" They will take around 80% of the stress away from the small shafts! You will be able to run way more boost and they will live longer and you won't have to worry about carbon seal failure. However, it will be a long while before anything is being moved on them. If you guys are interested in the HTB's now, I will be able to do the secrets to them for a small additional charge when they are produced. All you will have to do is send the turbos back to me and I will go through and change what needs to be changed.

Later on,
Bryan
www.bnrsupercars.com

7 eleven

I know the stock ones burn out pretty quick once you start boosting past 14psi, can these handle higher boost? How much?
Thanks