matty

i used to think JUST like you man. I was one of the biggest skeptics on this board in regards to these turbos. Others have pounded into my head that the real benefit of upgrading is not to gain rwhp at said 15 psi but they enable you to run 17-19psi effeciently

matty

If you dont mind please provide some details of your car. What rwhp, traps, etc...

guys this is a great thread and long over do..lets keep it going...

matty

dd

matty

the above looks like a good synopsis, but....how do we know they run at a cooler temp and will last?

and where is goodfellas...he loves these things.

artguy

the temp thing...its math...larger wheels need to spin less in order to get the same flow right? of course I know nothing about math

the tests m2 did with their upgrades showed 25 degrees c in temp difference between them and the stockers. i dont know what the bnr temp differences are.


j

SPOautos

1) Sorry to break it to you but Kevin didnt trap 126 on stock twins they were upgraded by a shop to his specs and he wouldnt release the info as to what they were. Also, I was thinking it was a little less than 126 but might be wrong about that. In addition, from what I hear he was at an event at the time and had his car on a diet.

2) Explain how that is the turbos? How do we know everything else including thier tuning is "right"? There are pleanty of single turbo cars on the forum not making power, I guess we should use them as the yard stick to judge what those turbos are capable of....according to your thinking anyway.

3) So? What does that have to do with turbos? We supposed to respect you cause you claim to build "race engines"? It doesnt seem to be doing much for your dyno sheet.

4) The only dyno numbers that have been claimed are based one the dyno sheet thats been posted about 5000 times around this site. It can also be found at the RX7store as a link at the bottom of the stage3 page...like I mentioned in my last post. No one claimed any dyno numbers higher than my dyno. They claimed that dyno sheet and a 125mph trap with 100lbs of extra weight, granny shifting, and on 93 octane. If you work the math with the mph it leads to about 430ish. BUT, no one ever claimed it DYNOED 430ish.

5) Well, I cant reply to that cause I dont know who he sold turbos to or anything like that. I'm only commenting on my situation.

You never "kept" hearing anything other than what was done. I tell people exactly what my car does and thats it, nothing else. I've pointed this out to you before, you just keep acting like I havent.

STEPHEN

artguy

OUCH ...right in the ballz with that one.

hahahha...you guys are hilarious!!

FEARED7

"5) Think of the area I am in and think of who you sold your turbos too. " MR RX7 TT.

I tell you what, tell all the customers loacal to you that have the stage 3's, to come to Birmingham for the 2nd annual KAN Tuning Exhibition. We have about 10 planned on coming, 3 of my personal cars, and if more turn out, thats even better!

Bryan
www.bnrsupercars.com

rotorbrain

hey, i have first hand experience with the stage 3's. they are amazing. they spool like seq. twins except w/o the hesitation. i was gonna trade my to4e for his twins. they were that amazing. theres a guy out here in tennessee that will more than prove what they can do. his car is absolutely amazing and if bryan has the oil thing done and squared away by the tuning event then hell be there. ill be there regardless as i only have minor stuff to get done. im willing to place a bet on the bnr's as opposed to the stock twins. they WILL outperform the stock twins.

paul

kwikrx7

The guy who bought my car said my FD had much more low-end torque and a better power band than any stock-turbo FD he's ever driven. The stockers provide good power and have been proven (with good tuning) to put down 380+ rwhp at 17-18 psi - but most will only see 340-360 rwhp with normal bolt-ons and streetport at 14-15 psi.

I don't understand how some of you guys can't see the benefit of upgraded twins. The power was instantly noticeable. At 3K rpms I could nail it and all of my damn CDs would shoot out of my CD case under my radio - this wouldn't happen when I was running the stockers non-seq at 14-15 psi.

I don't know of any 380 rwhp FDs at 15 psi running a HF cat that are running the stock turbos. I know Goodfellas got 368 with a HF cat but his car was a freak - some can't even achieve that with a midpipe. My car had conservative tuning from KDR - with Kan tuning it could have been over 390 rwhp - we'll never know.

But my stage 2s friggen ripped - they easily outpowered and outspooled my stock turbos - but they need to be run at 15-17 psi to get the benefit from them.

Also, look at artguy's primary turbo in seq - how many stock turbos have achieved 210 rwhp on the primary before transition? Most stockers at 15 psi will see 180-185 max.

I love these threads....

artguy

werd

Scrub

iTrader: (25)

yes I have a stock ported motor...but they do not spool like sequential. Mine see full boost around 4200-4500 RPMS. I am not sure why the lag is so bad, sometimes it pisses me off and sometimes Im okay with it.

FEARED7

Hey Scrub. When the weather cools down, the car will wake up from hibernation! The stock port will not make much of a difference, but the good thing about a stock ported engine you can run more timing than a Street port. Mid range/bottom end can be improved by more timing and better A/F ratios. Tuning does some wonders. My car is a bit laggy, but I am running a base map so it needs some work done to it and I am sure then, it will rip. Above 5K, I couldn't ask for anything better. I did a second gear roll last night about 55 mph and I think I broke my ladder bar near my rear end . Love it when the drivetrain is near its max!
Bryan
www.bnrsupercars.com

rotorbrain

hey scrub. . . you need to get with some of the guys trying to get steve out to the NE. let him tune it and i KNOW youll see the reall bnr stage 3s.

paul

BoostedRex

Hey Paul, what's it cost to get Kan to your area and how big of group do you need? That info would be very nice to have, especially since I have never even met the guy. All I know is his reputation, and that's solid gold!

Zach

Scrub

iTrader: (25)

Steve was just out here for rotorfest.....and he did tune my car

BoostedRex

Ouch, talk about not seeing that one coming.

tomaszjc7

I agree with kwikrx7, the major benefit to getting upgraded turbos is that they can handle higher psi at lower temps than the stock turbos resulting in more power w/out as much lag as a single. I ordered the Stage 2's from bryan a few weeks ago and I should be getting them this thursday... I talked to bryan yesterday about my setup (3mm seals, street ported, 1300ccc's, FMIC, Power FC, the stage 2's at 17-19psi) and he said I should be putting around 400hp down to the ground. Anyway, hope everything works out and after seeing that 386hp can get you 11's I cant wait to get to the strip and hopefully get kicked out!

-Tom

SleepR1

What's the differences between Stage 2 and Stage 3 BNRs?

ZeroBanger

if you want 400 rwhp, you need a single. BNR's are not going to get you 400 and they aren't going to last more than amonth.

rotorbrain

no comment. . . .

duboisr

Does Garfinkle have the improved stage 3 set . He is installing something now . He is busy making parts and smilling .Rotorbrain may know and of course Feared7 knows

rotorbrain

again. . . no comment. . .

unixpilot

I can neither confirm no deny.........are you the re-incarnation of Ollie North?

DCrosby

So, ZeroBanger you obviously have BNR's and have tried this !? Since you speak so intently on the matter !

Also you'd think with Water Injection ANYTHING is possible... I thought with WI 500HP was possible with a stock setup and No IC ....