and btw the Stage 2 BNRs did have oil blowby issues

 

I have a set of BNR s with the new center section but my intake housings are different than all the others . I welded all the cracks and ported the waste gate with a bigger door installed . I vented the motor very well and no smoking was the result . I also regulated the oil flow to them to pervent smoking . I may have the first set built with the new center section which makes them the oldest . Ask Brain about that ,as I am guessing . I reworked the manifold and hot sides quite alot .I am very pleased with them .The car to date is still not tuned but it is fast as any thing I have been in .These are the best modified twins I have had .The best part that no one types about is the service .Brian has treated me very well .I bought a set of the early smokers and he did all he could to correct the problem .The new center cection was costley and the work to fit the bigger housings was time and money lost for him .He did a great job for me and gets my business when I am in need .My install looks as good as it runs thanks to my work( tooting my own horn ) The turbos are well worth the work , time and money .

 

Again, not true. The only ones that had any oil issues as a result of the turbos were the stage 3s, which had a dynamic seal in place to help spool but unfortunately led to oil blowby issues.

stage 2s were simply stock turbos with different/larger compressor wheels.

 

Do you anticipate dynoing these turbos? Would be very interested in the outcome, as I am sure we all would.

I agree with Bryan's customer service, is and always has been top notch. He runs a one-man operation....I sometimes call him at midnight and he is still at work!

 

I'll third the thumbs up for Bryan's service. He's always been overly helpful to me, even when I first talked to him over the phone. He definately stands behind his product!

 

It's YZF undoubtedly.....

Bryan's building my Stage 3s this week, setup sequentially. I promise to get my new motor broken in as quickly as possible to start seeing what these bad boys can do....

 

Months and years keep piling up and yet no one runs them(BNRs) to its full "potential." I read these turbos are "efficient" at 17psi and upwards, but its supporters are running them inefficiently at 13-15psi with ported motors. Maybe one or two people have gone over 15psi and SPOautos comes to mind with his 1 dyno run. I have not seen anymore dyno graphs, none, other than personal claims and hopeful thinking.

I mean here is a turbo setup going on its third year(maybe more), with a decent amount of constituents and there's hardly any materialistic, convincing results. I would love to see a seq. BNR setup with all its dynamics and see those results. Until then, for a grand or more, my next turbo setup is gonna be something like Max's - 15psi 400 and some odd rwhp - solid smooth through out the rpm range.

 

You make some valid points, but I would like to point out that the new BNRs have been on the market for not much more than 1 year (I was one of the first and received them right around the time of the rotary revolution, which is in april).


Edit: Also, 3 good friends of mine are running the old style BNR3s (one of them sequentially) at 15 to 17 psi regularly and have had no problems whatsoever. You don't hear about it because they aren't on the forum.

Rich

 

thought you were done posting on my "ignorant" thread?

anyway, thanks for the feedback, everyone

 

everyone is understandably a little paranoid about blowing their ported engine and new turbos up

my unscientific opinion is the stock manifold is very constrictive, compared to a single turbo manifold, and likely represents a "choke point" at higher boost

 

I will have the car dynoed to finish the tunning after I get the program better with street tunning . Yes I have a wide band in the car .The car was on the dyno once and your friend Steve K found the timming was way off . That problem was caused by the old AEM ingition amp .There new amp is working fine powering four Jacobs C4 coils, 65000 volts . The turbos are very good but hard to compair with the normal stage threes . Also the porting work on the hot sides and manifold will make an improvent over the stock parts .I had the parts cir coated , does Brian have them coated ? My Y pipe connector has 2 O rings on one end and 3 on the other so no leaks as stock ones .The Y pipe to the turbos on the stockers and stage 3 is connected with 2 bolts on each . I used V band clamps so no warping , leaks .The cross over pipe from the Y pipe to the innercooler had 2 studs for attachment . The one I made has 5 bolts .All polished bling bling .Looks good runs good no leaks . The POINT IS ,I would not have done all of this work on a set of turbos that are not worth the time . I did not do much on the other sets of up graded turbos I had .I would not have put this much time in a set with out the back up service Brian gives , that was the key, his service .

 

Yeah, that AEM amp really screwed up a bunch of people.....I think it was released prematurely.

 

So, this may be an ignorant question, but has anyone tried to modify the stock manifold or make an improved version that works with the BNRs and IS less restrictive??

 

My manifold is modified somewhat, more than any I have seen or done for anyone else . I may build a new one from raw materal in the future .If I do it must position the turbos as they are now because I do not want to remanufacture any of the piping except the needed tubes for the new wastegate .The car as of this date ,untuned and running 17 psi on BP ultra gas . Dyno tuning will come after I get it closer myself and I get finished with the other peoples work I am doing .I think these turbos have around 13000 miles on them .
How many miles does anyone else have on a set with the new centers ? I can not spell cattridge .

 

david, i may have to take a few days off to "repay" you for all the work done for me. . . maybe i can get your car closer to the point you want it at for dynoruns. . . ill talk that over with the head of the household.

haha, id like to see at least ONE of our cars completed before i leave!!!!!

btw, im seriously thinking about hitting steve up for some tuning in memphis this august. . . since my wideband is all crapped out. . . or whatever.

also, to everyone else. . . davids set is very much one of a kind. bryan may have made another setup like his for someone else, but i doubt they have done what he has done. he has done EXTENSIVE work to his exhaust manifold. i have no issues with stating that his turbos will outflow most of the the stage 3s out there. hes done what he could to make everything else work with the stage 3s being the only liability. so. . . as you can see, his car is the perfect test mule for these guys. . . and ill make it my mission to get his car on the dyno.

paul

 

So, 13,000 miles huh. Is that currently the most mileage out there for the latest BNR Stage 3 configuration? Just trying to get a feel for who has the most mileage and whether anyone has seen any age-related issues yet. If you feel this question is too far off topic I can start a new thread. I certainly don't intend to hijack this one by asking my question.

Thanks!

 

i think rich or heath may have the most miles on stage 3s actually. . . davids are just one of the first.

paul

 

BNR Stage 3s

I have a couple thousand miles on my Stage 3s, and cannot say enough about them. I run them with 14/17.5 psi at low/high settings.

I had an opportunity to watch Bryan build one of mine from scratch, and everything that goes into them and all the work that is done is first rate. He knows his stuff and stands behind his work. If I could go back and do it over again, the only thing I would change would be to do it sooner.

 

Can't wait to see rynberg's seq. setup bnr's dyno sheet compared to goodfella's non-seq.

 

Crap, the pressures' on...

All you will be able to compare is powerband width....I will be running a more conservative port job and a hiflow cat. No pulleys, no port-matched manifolds, etc. Not to mention me on 91 octane. We'll see what Mr. Kan can do with her under those conditions.....

 

I'm buying the used set of Stage 3s from Clint (non sequential)

hoping to hit about 380 at the wheels at 15 psi on pump *fingers crossed*

 

how do you get them to boost so high? having issues getting mine past 12 psi as the wastegate actuator is opening