Integrals

I just purchased 'THe Wird's' set of BNR's after doing a ton of research and testing out a few other FD's that had gone single.

I wouldn't trade up the low end response of the SEQ setup for a bit more on the top end that will be rarely useable. I typically RR my car with NASA and ProAuto in my area and the single turbo just woudn't cut it.

The potential for 300-400whp with the SEQ setup is too tempting to pass up!

BNR all the way!

Monkman33

iTrader: (28)

Sequential.

cptpain

iTrader: (1)

sequential BNR's

Montego

iTrader: (1)

Benefits of the BNR's: quick response in sequential form, capability to be at 400 RWHP, and direct replacement to the the twins.

Benefits of a single BB as a GT35R: higher HP capability; quick spool (not as good a sequential not even close) but it's quick, lower temps.

If you get run BNR's nonsequentially you get even a slower spool than a BB single, the higher temps of the twins, and the lower HP limitations of the BNR's. Why would anyone do that? You are getting the worst attributes by going that route.

RotaryRocket93

iTrader: (7)

First id like to thank everyone for the Quick responses, this board is amazing. Second i have made up my mind to go with the BNR's. I do have a couple small Q's about the BNR's. Im about to get the Pettit Coolcharge III intercooler, greddy elbow with the flange on it. I can still run my BOV from that Greddy elbow Correct? Or does it have to be setup differently with the twins? I have to admidt i dont understand the twins like I do a single setup. And dont the BNR's already come with a ported wastegate? Is there a better set of BNR's when you order them or are they all the same? I think i read a earlier post about someone requesting different specs from bryan....

helghast7

iTrader: (6)

yes he can customize them a bit to the customers liking, how far he can go im unsure of however

RotaryRocket93

iTrader: (7)

Okay, well when i get back from this deployment ill give him a call and find out everything i need to know... or ill just shoot him a email. Thanks

twomucboost4u

iTrader: (9)

If your looking for a complete set up with all the goodies I am selling mine right now... They have less than 100 miles on them and still look brand new... Have Rob Bailey Solenoids Ill sell it as a package if your interested.

Chris

twomucboost4u

iTrader: (9)

And I dont care what someone says you can spend just as much on a nice running Seq. set up than a single never mind the supporting mods becaue those are determined by power goals... You can find a gt35r kit for around $2300(Manifold, Lines, Turbo, Waistgate, downpipe. To put together a nice twins set up is just as much if not more id say close to $3000... BNRS, Rob bailey Solenoids, Downpipe.

Chris

RotaryRocket93

iTrader: (7)

I know you have them for sale and its a good deal too with the y-pipe and all. Unfortunately for me, i have some other priorities w/ the car to take care of first. Im on deployment right now and im buying one thing after another. I just got a new radiator, ast, intake, PFC, DP,Catback, Highflow Cat, and im about to order the Extreme Fuel System from rx7store and the Denso pump. Im also going to be doing that rewiring **** on the pump as soon as i get back. I also got all new vacuum lines and a new rats nest and solenoids from the classifieds section a while back and need to get them installed. The car I got last year had a rebuild on the twins so but they are smoking so i know it will be time for a new set or upgrade soon. But before i do that, hopefully if everything works fine for a little while i want to get my Pettit coolcharge intercooler installed and then get a top of the line set of dual oil coolers, then i want to get the BNR's. You do have a good deal on yours im sure they will sell, especially with that one year warranty. But I want to have the majority of my safety stuff done before i do buy anything new. Im also considering pulling the engine and getting a rebuild and then installing something new... Just some thoughts... The engine has 87K on it so its probably close to its death. I also want to get the AI setup. Its likely to be 6 months before im ready for the new BNR's.

RotaryRocket93

iTrader: (7)

Yah Jason over at rx7store has a gt35r setup for 2,400 with lines, wastegate, turbo, manifold, and downpipe.... Not really a bad deal

rotarymandan

iTrader: (15)

GT35. With the single turbo, you will get more power with less stress on the motor, and like mentioned earlier, with proper turbine sizing you can have great response. There are going to be more things you have to do to get it to work compared to the BNRs, but IMO it would be worth it.

helghast7

iTrader: (6)

.....define stress.....forced air entering the engine has an equal amount of stress at the same psi regardless of turbo used

gracer7-rx7

iTrader: (16)

Interesting expenditures you are taking on. Contradictory really.

You don't need a complicated fuel system to run BNR twins. A pair of larger secondary injectors will do just fine. Most people get the stock secondaries bored out to 1200 or 1300cc. No real need for that expense unless you go Single Turbo.

If you go Single, You don't need to order a new intake or a downpipe. If you stay twins, you can get a used downpipe off the forum for $50 shipped.

If you go Single, you don't need to redo the rats nest or replace any aged solenoids.

Sounds like you need to sit down and do some planning unless you want to buy stuff you don't need. Probably best to start with a compression test and see how the motor is.

Uncle Hungry

iTrader: (2)

Theres waaay to many ways to break this down but this statement is false. That's why they publish compressor maps.

RotaryRocket93

iTrader: (7)

Hey man,
I know what your saying about all the stuff that i plan on doing. I had my engine tested and they said the compression is good but that it was on the edge maybe another 10k miles out of it if i take it easy on the ride. For now i want to switch to the BNR's Although the Aspec GT-35r T4 is giving me something else to think about. Redoing the Vacuum job isnt a waste to me i want to fix everything on the car before i replace the turbos and or engine. Basically i want to see how the twins work knowing that boost is good and in the correct 10 8 10 pattern. I know i dont need the intake, or the line job done if im going with the single but like i said im a ways away from doing the single or the bnr upgrade. Im one of the people that likes to plan in advance and not jump into stuff. Which is why im doing all my research and planning in advance.

I also think im going to wait till i do a rebuild to mess with the BNR's or the Single turbo. I would like to purchase what im going to use but not install until i get the new build done so i dont run a risk of destroying a perfectly good turbo with debris from a toasted engine. I appreciate your help i loved that thread you sent me in the pm its given me alot to think about and if i go the single route i think ill get the GT35R t4 that A-spec makes. But as of right now im still leaning toward the BNR's. Im giving myself 1 month to make up my mind as i need to start saving up for the parts. No financing parts for this fella.

thewird

iTrader: (8)

The BNR's are a direct replacement to the stock twins. All you really need are 1200cc or 1300cc secondary injectors and that is good enough to 18 PSi (Don't run 18 PSi though, I didn't mind blowing motors at the time :P). Other then the obvious, make sure you have good intercooler, Twin Power Ignition (not needed but always better), Aluminum rad like Koyo, dual oil coolers for your autoX, ignition wires, make sure your vacuum lines are good etc.. Some people suggest solenoid upgrades but I never had a problem at 17 PSi so meh. Also, some sort of AI system would be nice but not required.

thewird

helghast7

iTrader: (6)

thanks for the info Uncle Hungry, you learn something everyday

money

iTrader: (2)

sound like everyone think going with BNR stage 3 sequential is a better choice than Non sequential ?.. i'm in the same situation in choosing which to go with... sequential or non sequential..

anyone that have non sequential BnR stage 3 on this forum? please provide some information.

thanks

Montego

iTrader: (1)

^^^

non sequential BNR's have the same spool time (lag) and boost threshold as non sequential stock twins. So what is there to know? As I said in my earlier post if you plan on running non-seq BNR's just get a BB single as a GT35R

My history:

Perfectly working sequential but every so often I would have to track down a boost issue. Instant boost 10 psi at 2900RPMs and fun as hell. Many people these days have never had a properly working seq so thats something to keep in mind.

Went non sequential for reliability and to see what all the hype was all about. Verdict I liked how I never had another boost issue after that, but I hated the boost response. 10 psi at 3800 RPMs (and I had all of the right mods) and laggy as hell booo

Went BB single (GT35R) short manifold (the longer one yields better boost by 200 RPMs so I've heard). 10 psi by 3300 RPMS nevermind that 10 psi on a single yields more power than twins at 10 psi. Verdict extremely happy with the boost response, threshold, and power output, but I will say it's not even close as responsive as a properly working sequential system. but I'm very happy

DJF(NJ)

iTrader: (6)

What size GT35R is this? I thought I read the short runner's yield better faster boost?

twomucboost4u

iTrader: (9)

My honest opinion would be for the price you might as well go single if you plan on running the BNR's non seq. boost pattern would be similar and the turbo would be less complicated. I never understood the point of going non- seq with our stock twins unless you where trying to save money(Not the case if your plannin on buying BNR's). But if your planning on doing it right then eighther biuld twins seq. or put on a nice single kit...


As for all these people saying you dont need these specific items for BNR's compared to single? What are you all talking about? The BNR's are a performance upgrade just as the single if your going to get it might as well biuld it to its potential. If you plan on running stock amounts of boost 10-13 lbs save yourself the $2400 and buy a set of good condition stock twins since the power differance at that boost I dont believe is going to be that much different. Just as well if your going to run a single turbo at 10-13 lbs the amount of upgrades is going to be similiar. Dont listen to some of these people, you want to overbuild certain items to allow for varience... Can you run 550/1300 injectors at 18 lbs of boost sure you can but guess what your going to be running 90%+ duty cycle, is that ok yeah sure if you like to gamble with your investments. If you want to be safe you upgrade to 780/1600 and run at 70% duty cycle and dont have to worry about it. Are you going to get bad gas mileage? NO once its tuned its using the same amount of fuel but with a safer margin. Can you run stock solenoids at 17lbs? yeah sure you can. And just like those that win the lottery you have a chance at them not failing. Just from what I have seen with solenoids is for every 1 success story there are 10 horror stories. Why not just give yourself piece of mind and upgrade them. For as picky as these cars are I dont think the owners are picky enough. You should never settle for something that can do the job when there is something better. If you want your car to last and enjoy it take the time to go through everything and make sure it is up to your standard. We all know what we would like to do and upgrade but then we ask for advice and someone says ahhh naaa you dont need that we look at our money and go yeah I probably dont... Well with these cars your eighther going to support it or rebiuld it the money is going to go somewhere... Just my 2 cents... If you want to biuld a reliable set up these are somethings I recomend no matter what you do. Its not cheap to do it right. But then again if we wanted cheap and easily attainable we would get a Honda, EVO,STi,SRT-4...We always give warnings to new owners of how much of a maintinence ***** our cars are and how delicate our engines are.

Motor Mounts
Oil Pan Brace
SS OMP Lines
Upgrades I/C
Upgraded Radiator
Upgraded Oil Cooler
Clutch
Ignition Amp
Re-Locate the Coils
Re-Locate Fuel Filter and Upgrade
Upgrade Fuel Pump
Injectors
Gear Oil Fluids
Vacuum Lines

Chris

Deals Gap Rotary Rally

iTrader: (6)

I have to agree... Unless you have visual inspection in your state/city or something where they require your car to be stock

I would never go non-seq on BNRs...

thewird

iTrader: (8)

I did mention not to run 18 PSi in my post. I just said there was enough fuel there and it was around 90% yes. If you run whats actually safe on pump gas 15-16 PSi, then you'll be around 80% which is perfectly fine and safe. You only need to upgrade to top-feed if you think you ever might want to upgrade to single in the future in my opinion.

As for solenoid's, you realize only a handful of people have actually upgraded their solenoid's, yet many others are still pushing them to their limits without issue? You only see the people that have issues post obviously which is why it seems like a bigger deal then it is. And most of the time the problem is with the vacuum lines, not the solenoids.

A bunch of things you listed are not needed at all while others are maybe's....

Motor Mounts (not needed if your rubber ones are fine)
Oil Pan Brace (not needed at all if sealed properly with more then a gasket)
SS OMP Lines (preference, I still don't use them, just change them every motor rebuild)
Upgraded Radiator (yes, but a lot of people have done this already anyway)
Clutch (maybe, depends what you have)
Re-Locate the Coils (really not needed but preference)
Re-Locate Fuel Filter and Upgrade (only for convenience on something you do every few years)
Gear Oil Fluids (something you do regularly anyway if your tracking regardless of power)

I also agree non-sequential on BNR's is a waste.

thewird

money

iTrader: (2)

visual inspection is something can happen in california state. so i'm really stuck in either going with sequential or non sequential.

i hear non sequential lag like single.. but respond a bit faster.