JBC

Why do these damn things have to come out when I am going single?

Felix Wankel

And kerosene for the heater.

RX7 RAGE

iTrader: (22)

stephen, i assume you are running the turbos sequentially correct?

Brad

Bryan, just keep the price at $1650 until I get money. Then you can jack it up all you want! Don't forget about that 'free' set of twins I sent you!!!!!

SPOautos

Noooo, full NON seq!!!!!!!!

STEPHEN

RX7 RAGE

iTrader: (22)

oh ok not the poor man's method but the real full non seq? thanks.

SPOautos

Yup, Brian cut out the door in the manifold and I removed teh butterfly in the Y pipe. EVERYTHING single thing that has to do with the turbo system as been removed except the wg actuator and it hooked up totally manual with no wg solenoids or anything.

Its as bare bones as you can get....which is exactly what I wanted

BTW - If you buy a set of these turbos Brian removes teh door in the manifold anyway, its included in the price....which looks like will be $2000 even....with a good core of course, which means dont wait till they blow up or till you pop a motor to do it cause then you'll have to buy turbine wheels and such.

STEPHEN

kwikrx7

Hey Stephen, I just got off the phone with Bryan - he said you got pulled over by a cop after just a few gears, lol. That fast, huh? Looking foward to you second dyno numbers. Did he clip your turbine wheels? I have the BNRs in a box up at KDR ready to go in right after xmas. I emailed Dave telling him to send them back to Bryan to convert to "secret weapons" Bryan said the carbon seal ones will put down similar numbers with the new compressor wheels he's using but the response isn't even close. Full boost shouod come on by 2900-3K rpms in seq. mode depending on what boost is run.

I know he said that Rich (Goodfellas) will be running the "secret weapons" sequentially and are shooting for 500 rwhp - can you imagine a 500 rwhp twin-turbo FD that weighs 2700 lbs and has full boost by low 3K rpms - now that's a street car - low-mid 10s isn't out of the question. I also didn't realize you could run 18-19 psi on the PFC by richening the last 2 or so cells. Hopefully Dave can get some decent numbers out of these twins.

SPOautos

To be quite honest guys the lag is non existant, you need to run the non seq. The reason is if you wait till 4500 to bring the 2nd turbo online your shooting yourself in the foot by running only one turbo up to 4500 when you could be running 2 turbos from 3K up.

I start to build boost at 2500, at 3000 I'm right at 10psi and the tires start spinning pretty good, at 4000 I'm at full boost (17psi) and the tires are ripping apart and I'm sliding sideways.

THERE IS NO REASON TO RUN SEQ WITH THESE!!!!!!

You'll be running WAY less cfm with one turbo versus two turbos. I can run the same power with much less boost. When I'm at 7psi you'd need to be a prob 10psi at least to match the hp since you'd only have one turbo going

STEPHEN

SPOautos

OK GUYS, STEVE KAN TALKED ME INTO DRIVING 2HRS TO ATLANTA TONIGHT SO ME AND BRIAN ARE GOING OVER THERE TO BUY AN HOUR OF TIME.

WISH ME LUCK!!!!

STEPHEN

artguy

qwik...werent you promised 32-3400 rpm spoolup on that first set of bnrs that you ordered? then ya got them and they didnt spool til like 4k plus...am i right?

I shall reserve all judgement til i see the dyno sheets.

non seq boosting by 3300 is an exception ya know...some guys get low spoolup times...others do full non seq and end up going back to seq cuz they dont boost til 4k...right?

Ive run my ball bearing twins non seq and shall believe the low spoolup times on larger wheels and shaft bearings when i see it.

bryan obviously knows what he is doing...I hope he pulls it off...and may you all have fast cars for the new year!


jason

Marshall

Stephen, where are you guys headed?

artguy

good luck stephen!!

2a+RoN

SWEET!!! can't wait to see some numbers. keep us all informed.

RX7Elmo

I just wanted to comment how bryan can make externally factory looking turbos push out over 450rwhp. Just a thought i couldn't fathom until now. can't wait to see those numbers. All of us we'll be running the BNR Secrets in no time.

Danny

smerkinseven

wow 500rwhp..... i want one... where do i sign up??? now this is the "secret weapon" right??? can anyone get the "secret weapon" turbos??? if so how much???

kwikrx7

[QUOTE]Originally posted by artguy
[B]qwik...werent you promised 32-3400 rpm spoolup on that first set of bnrs that you ordered? then ya got them and they didnt spool til like 4k plus...am i right?


Bryan said his turbos (old compressor wheels) would have full boost by around 4200-4500 rpms (non-seq). I had full boost with my stock twins running non-seq by 3400-3500 rpms. When I installed the old BNRs I didn't get full boost until 4500 rpms - I also had clipped turbines.

Bryan is now using a new compressor wheel which is designed for velocity or tip speed. The blades are angled differently and are a lot more aggressive. I agree with artguy in that there's nothing like sequential turbos - instant boost. But running the new BNR turbos with the different internals has allowed incredible response and very quick spooling, unlike the old carbon seal turbos he was using. Now it's going to be a while before I get dynoed - Stephen, hurry and post those numbers!!!

SPOautos

I know its hard to believe since we are talking non seq but those spool times I mentioned are accurate and not just from eyeballing it, I dataloged the boost. That is exactly what I was getting. I've already got about 500 miles on these turbos.

Now the ONLY thing different that MIGHT make a difference is that I'm running a FULLY manual boost control system with NO solenoids at all which is what I like. If that is what makes the differnce anyone can convert over to it for about $15 and a trip to Home Depot Racing just like I did.

I'm making back up dyno runs to check the hp BUT....the spool I KNOW that is absolutly right, for my car anyway and there is nothing secret about my car.

I will say this, while the car was on the dyno and I was logging the boost I would see pretty big differences in spool just due to tuning and taking out fuel....of course when we started I had a PEAK a/f of 8:1 and as low as 6 or 7:1 haha

STEPHEN

pp13bnos

iTrader: (1)

You still did'nt answer my questions about what how much torque you made, and at what rpm. Not to mention, what rpm you made peak power at.

Come on, don't do the rikki thing and dodge the questions now. CJ

RICE RACING

I want to sell my 1st gen now and buy an FD.

That is an exceptional result Hats off, damn PANTS OFF to you

Shows what can be done with modifying the std bits !

SPOautos

I'm not dodging, I was just going to wait and throw up the dyno sheet. I though I was going to go tonight but it looks like Steve cant get a dyno time for tonight

I guess a little too short notice.

Anyway, since I cant get the graph I'll post some info here.

My peak tq was 388 @ 5600rpms
My peak power was 465 @ 7200 rpms

I was on a Dynomite which runs 15% less than a Dynojet but the numbers are in Dynojet numbers which is what everyone wants to see since thats what everyone uses. Also, they are SAE corrected. Not corrected I was about 13rwhp more at peak.

Steve Kan got quite a lot of seat time in my car and said it feels faster than his RED 3rd gen when its on pump gas!!!!!! WOW, that should tell you what you need to know haha. He is visiting family but when he gets back to a computer I'm sure he will post his opinions which since he is buying a set for himself and 2 friends I think you'll like his opinions lol

STEPHEN

Kevin T. Wyum

"Baddog, I've been going over the fuel inj duty cycle issue. If you use the 40psi of fuel pressure it does seem to be low but I've been reading Lightening in a world or thunder and it says the stock fuel pressure is 37lbs at 0psi of boost and goes up 1lbs for 1psi. My fuel pressure reg is tied to the manifold just like my gauge so I would use my gauge boost reading (instead of the pfc boost reading), which was 17pri of boost. This would come to 37 + 17 = 54psi of fuel pressure

Using all this info on Max Coopers site here is what I came up with......

BSFC of .60
fuel press of 54lbs
pri of 875 (RC flowed them at 875's instead of 850)
sec of 1205 (RC flowed)
75% inj duty cycle"


Can't calculate that way. The 1 to 1psi fuel pressure increase while under boost doesn't increase the fuel delivery at all. All it's doing is maintaining the pressure differential between the fuel rail side of the injector and the charge side in the manifold/chamber. If you had one that increases 2 for 1 then it would fit your calculation. Off the top of my head there is also a high speed switch that bumps the pump to 40 baseline underthrottle (I THINK) been a long time since I've played with the stock pump assembly so I might be thinking of it wrong. I know there's are two pump speeds, I might be forgetting when it switches though. Merry X-mass to all. Even the trolls : P


Kevin T. Wyum

RICE RACING

I just want to say that I am very very impressed, over 500bhp @ the engine on modified twins is great.

That sounds like my dream car

Modern day supercar for about 1/10th of the price !

SPOautos

Yea, I just got off the ph with Steve Kan and he was saying the same thing. Since thats the case it still comes to 430rwhp at 80% (I decided to check it at lunch and it hit 80.1%). I called Steve and talked to him about it when we were trying to line up the 2nd dyno. He says my car definatly feels like the dynoed numbers. He was also saying that there are alot of other variables that can play into a fuel calculator and they are basically just for a base line to give you a ball park idea. He was saying that he always makes more than what a fuel calc shows do to all the variables not entered into the calculator.

Anyway, we'll see what the 2nd dyno says maybe Thurs. Untill then you guys feel free to keep asking me some questions.

I'm straight up about eveything and I'll answer what I'm free to answer.....I'll be upfront about anything relating to my set up the only thing off limits is me giving my tuning map away which was requested by Steve since he didnt make me pay....and the internal turbo info. Everything else is out in the open

STEPHEN

SPOautos

Thanks man!!!!! I can say that it is my dream car for sure!!!!!

STEPHEN