Detbyron

What happened to them on the RX7Store Website?
Website construction or are they currently off the market?

SPOautos

Brian took the stage 3's off the market cause some people were having problems with them and he didnt want to keep selling them, he still sells the stage 2's though. I'm not sure why the stage 2's arent listed but he is still selling them. You can get them from Gotham Racing or direct from BNR either way....the price is also the same either way.

Detbyron

Thanks, now I know; and knowing's half the battle.

- yeah, I knew about the smoking Stage 3's.

911GT2

But that issue has been resolved, so perhaps they'll be sold at rx7store again soon? (hint hint )

XSTransAm

what is the projected hp of the stage 2's? stock porting, with all the bolt ons? is 400 whp doable?

Mahjik

iTrader: (1)

I'm not sure on stock ports. Kwikrx7's old car put down about 380rwhp at 15 PSI with a hi-flow cat with the Stage 2's in sequential mode. I don't think he ever did a run higher than 15 PSI although the turbos can definitely handle it.

I'm not sure what everyone's fixation is with 400rwhp.... I'd rather have Kwikrx7's old car or Artguy's car. Both very reliable and streetable cars (not necessarily over 400rwhp).

XSTransAm

cause ive already got 300 whp

I said 400 cause im realistic, Im actually shooting for 500 on my car, hence the single turbo. But that will be only race gas....

however a 400 hp car (pump gas) that has the spool of the stock twins would probably be the most fun. IMHO

Jason

iTrader: (5)

The stage 2 and 3's are being redesigned so we dont have anymore issues with leaking oil. Once they have been tested fully I will put them back on the site.

Jason

Detbyron

woo hoo! Thanks. I wonder if there is a targeted date your working towards... like Christmas

duboisr

BNR has also built a set of larger turbos on the stock exhaust manifold that should out perform the stage three set up .Garfinkle has them running but the car is not yet tuned . It will hold you on the back of the seat for sure .Pictures of the custom install were sent to Brian today .

XSTransAm

I would love to see that

BoOsTin FD

Can these turbos work with PFS ecu or Pretuned ecu's like pettit, m2 etc? Or does it have to be Power FC?

Mahjik

iTrader: (1)

Although I haven't seen anyone running them with the rechipped ECU's, it was noted in one thread that a few tuners suggested that the stage 2's would work fine on a Pettit ECU.

I don't think there would be a problem running the stage 3's on something like the Pettit ECU, however, you wouldn't be realizing the potential of the turbos.

HeatTreated

the ECU part is the small part of the issue.
But going over 85% dutys on the stock injectors is more important.
pushing past 300rwhp on stock injectors is asking for trouble.
Im pushing 300rwhp at 12psi and I have to get more fuel before I can upgrade to the Stage 2 twins.
But now you say theres new twin setups from BNR? might have to wait and see those.

GoodfellaFD3S

iTrader: (213)

Exactly. The stage 2s and (old) stage 3s start outperforming the stockers at ~1 bar. You will want to run 15-17 psi on pump gas on the streets to maximize their potential.

Also, I speak to Brian quite frequently, and the stage 2s are staying the same. They are perfectly capable of 400 to the ground on a ported motor, on a stock motor I doubt it.

The only diff between the 2s and the old 3s is/was the dynamic seals, which caused all of the problems with the oil smoke. Thus, no more dynamic seal stage 3s.

Brian is coming out with completely revamped Stage 3s that will perform much like the old Stage 3s that I have along with much greater reliability/longevity. Almost everything on them is new, to include 25% thicker shafts and new cartidges. I know more specifics, but have been sworn to secrecy .

Mahjik

iTrader: (1)

IMO high duty cycles depends on the application. Many people (including Wade, probably the most experienced here on the forum currently about fuel systems) has made many posts about high injector cycles not necessarily being bad.

High duty cycles just means you don't have room to grow. If you are already getting the performance you like, you have enough fuel to provide the proper A/F ratio, then high duty cycles really isn't that big of a deal. Rarely (if ever) do we hear about motors blowing from stuck injectors (or do we hear about injectors sticking from being open too much).

People blow the whole high duty cycle thing way out of proportion sometimes. It's a concern, but A/F should be the first concern.

Mahjik

iTrader: (1)

BTW, check Wade's post in this thread about injector duty cycles:

https://www.rx7club.com/showthread.p...threadid=85818

duboisr

The bigger turbo set up is not a bolt on like the stage threes . The compressor housings are large and a SS spacer had to be made to move the turbos away from the engine .The set up is longer so the bellhousing had materal removed to clear the rear turbo . All of the oil and water lines were modified . The y pipe had to be longer, so a spacer was turned, ect,ect,ect . Some one ,not in the know, looking in there will think stock twins with a custom pipe setup . The ricers will not know what hit them .They hit 17 lbs quickly, the profec B is now set for15 lbs untill the tuning is done .

ebb

The new set of stage 3's I received in May never smoked at all. 5k miles and running strong at 17-18 psi.

GoodfellaFD3S

iTrader: (213)

That's what I like to hear. We have at least 3 customers that I can think of offhand with good sets of stage 3s that are not on the forum......

Mahjik

iTrader: (1)

That's his second set. The original set looked like a scene right out the Spy Hunter game.

ebb

This is my second set, would I buy them again? No.

Just the uncertainty that bothers me.

Brian7

hahaha

Thebestmotoring

I have had my Stage 3 running all summer at 1.1 cm2/kg and no smoking or oil burning issue whatsoever! Please add me to one of the satisfied customer list. I had my stage 3 installed by KD and dyno at around 360rwhp at just 1.0 cm2/kg on stock port motor. Which according to Dave his dyno is off by 10-20 rwhp at that time. I have out run my friend's 99' stock Viper RT10 had a couple car lengths on him 'til top of 3rd gear.

GoodfellaFD3S

iTrader: (213)

Sounds about right