I went w/ BNR Supercars (advertised on this forum) for the rebuild on my '89 TII turbo.

It is a Stage 4, which included 60-1 compressor wheel, T04B compressor housing, 360 degree thrust bearing, "0" trim exhaust, ported turbine entrance, matchported manifold to gasket and ported wastegate passage.

*All turbos include 1yr unlimited mile warranty as long as oil supply lines are replaced.
*All rotating assemblies are balanced and blue printed

Thanks for all the work Bryan! Here are the pics.

 

View of the side. Looks clean!

 

Looking at the *** end you can see the bored exh. housing and unrestrictive pitch of the turbine wheel

 

Gasket over exhaust manifold shows the match

 

looks real nice.
Now just be sure to get some before/after dyno sheets for us, or at least after dyno sheets

 

Porting done to smaller WG passage

 

And last, the turbo exh. inlets

I sure will post those dyno charts when I get it tuned Node. Still waiting on engine delivery in order to start putting it all together. Ian

 

how much?

 

1 million Canadian, or about $10. No, really; I was believe mine was one of/ or the 1st Stage 4s Bryan has done and he had to work out all the labor time for the options and rush shipping of parts, so price may vary from what I payed.

If you will check out his website on the top of the screen you can see the prices and lots more info on his products! Also Bryan is awesome at fast communication in e-mails and even called me long distance to let me know when we had to wait for some parts to be 3 day shipped to get it together. He provides excellent detail on progress and seems to answer all questions- no matter how inane! Thanks again Bryan. Ian

 

I feel sorry for the motor that turbo is going onto, the exhuast flow will CHOKE. Anyone with a heart can't serious expect a engine feed by a 60-1 to exhuale thru a stock turbine housing, i wonder what the flow increase on the compressor side works out to in comparison of the flow increase of the exhuast side, probably something like 80% more intake and 20% more exhuast

 

Looks like some good work, but unfortunatly I think HWO is right on this one. The compressor side is just to large for the exhaust side, thats why the hybrids max out WAY lower than a real deal T04B 60-1. I am sure you will see an increase over the stock turbo but it won't be an increase like you would see with a full 60-1. The best Hybrid I have ever felt on a TII was a -24 TO4B wheel in a stock housing with a stock clipped exahust wheel, it seem to be a very matched pair. Dale Clark ran this turbo for a bit a few years ago and the car was pretty damn fast for a stock appearing turbo.

Daniel

 

I am also using BNR for my TII, and I just have to say that Bryan is awesome to deal with. It's great to finally find a shop that looks after their customers, and he is really knowledgeable. I highly recommend BNR to everyone out there that needs engine work.

 

the exhaust is way to small guys sorry. but if you want to make any real power you are going to have to ditch that turbo. anthing smaller than a 1.15 A/R is to small. and stock is probly about .50

 

Stock S5 is acctually a .9x, but the design is to restrictive, A/R is a ratio so the exhaust wheelsize/turbine housing size can change that number. You can make plenty of power on a .96 T04 A/R, Hell Brian Cain is making "ok" power on a .96, undivided. I want my car to be more torquey and responcive so I am going with a .84 and a Ptrim exauast on a stock ported motor, when I pop this motor and get a new ported one, I will step up the exhaust A/R accordingly.

 

im going to go with bnr as soon as i get my car fixed and my engine apart...

 

I am running a 60-1 P trim with a .96 undivided on my stock motored 87 TII and I HATE the lag! starts pulling at 6k! My car was faster on a stock 90 style turbine (unclipped) with an H3 wheel in a T04b housing much like what you show except yours will make even more power with the O trim over the stock turbo. I think most people do rotaries wrong trying to make nothing but top end and that just doesn't do much justice on a street car unless you wanna step up to big porting or high rpms that really deserves a bigger one. Also the tuning gets to be quite a nightmare as well as the terror of reliability of a rotary running fullboost at 8k rpms. This is why I am gonna swap turbine housings (.81) and concentrate on the twin seq 16g's. Sorry guys but its just not worth getting left until 3rd gear by my V8 friends. Plus how is 111 mph on a stock motored stock ECU'd car running a stock 90 turbo with unclipped turbine and H3 wheel?
Patrick

 

Yes the stock turbine A/R is something like 1.00, but this is in terms of T3's NOT T4's! They are different in any ratio (thats what we are talking about) you can have a tiny 1.00 A/R or a gigantic 1.00 A/R just by enlarging the dimensions respectively. ie. 10/10 = 1.00 and 100/100 = 1.00
Theres something to think about also.

And it seems that all of the dynos that I look at show the same trend for the .96 that it doesn't make power until 5500 rpms (even on ported haltech cars) no matter what compressor you run. Please inform me if you think I have it wrong.

Patrick

 

your pics madam:

 

Brian (BDC) has pretty good boost by 4500. It's not laggy at all compared to some setups. I don't know what he does different though.

Brad

 

Its very strange in that the boost will run up pretty quickly but the car won't start moving until around 5500. I would like to see his dynos or at least some other people's dynos with the .96 setup (without NOS).
Patrick

 

On a piston engine this situation would be caused by incorrect cam timing. On a rotary this would say the porting had advanced the intake/exhaust timing to a point where it was hurting more than helping. I am guessing you are Michael and I know your motor was ported professionally if so, if it was done at all (not 100% sure, you hadn't even gotten the car back from RP the the original time when I got out of RX7's last). Just something to think about.

 

damn.... so upgraded turbos are a bad idea? i was thinkin about a t04b upgrade with stock housing? cuz turbonetics will do that and rebuild it for 450 dallors? is this turbo going to be better than stock? is it gonna lag like a **** and make no power over stock...?

 

I'm Patrick Harris if you are talking about Mike Lamonica yes I know who he is and yes his motor was professionally ported (first kinda streetported by RP then professionally streetported by joey). And he has the same dyno sheet as my car is showing around a 5500 rpm powerclimb. Keep in mind, mine is a completely stock 87 TII block so maybe a ported car will spool a little faster and make better use of the larger turbine. I would just rather make a more useful low end powerband and I'm sure it won't CHOKE until 8000k with a .81 on it.

As for the stock T04 hybrid I think its a great idea unless you are gonna go all out (haltech, porting etc). I ran one and bang for the buck ran 7 mph faster in the 1/4 mile (untuned)! can't beat that for 450.00 that's well over 50 rwhp increase giving you at least 1 rwhp for every 10.00 spent!

 

He ported and polished the Throttle body, Peter (rice racing) told me about it and the results it gave i then talked to Brian about it and he decided to try it and was amazed by the results

 

Someone Post a dyno sheet of a car with a hybrid on it. You'd be making about what 325-350Hp at the flywheel, You are making it at what rpm? Guys think that porting and a big turbo will give you no power until 5500-6000rpm, its not that you dont have power before then, they'll have similar power from about 3500 as the guys with the hybrid's do, its just that abover 5500rpm they make soo much more power, the power below 5500rpm seems very little. Its a direct comparison to the HP that iis being made up the revrange, because the hybrid doesn't keep making power the more you rev it seems to pull hard for a long time with power, yes pulling 'hard' for a long time, but in comparison to a T04 set up making 450HP (both would be running similar PSI (15ish psi) and will pull harder because it is making more power.