as title says... anyone try that combo before? is it safe as long as psi doesn't go over 14psi?

 

Lol, I see you took my advice from my PM.....before I even sent it! Are you reading my mind or sumthin ?

 

I would be hesitant to recommend that setup. The ECU won't be mapped for the higher-flowing BNR's, and likely wouldn't be able to fuel it properly. It's a *maybe*, but when you're talking about an engine maybe's don't cut it .

If your turbos are dead, I'd just get them fixed and move on. If you want to go to some sort of larger turbo setup, I'd start saving for a PowerFC or other standalone system.

Dale

 

dcfc3

thats kind of what i figured...

i will be getting a pfc by ~april, but that will be to go single... i mainly wanted to get the bnr's now, because i wanted to see if i like the bnr's, & to see how i like running parallel vs sequential.



yea rich... i guess were on the same page.

 

why doesnt everyone just get a PFC, then you never have to mess with other ecu's again

 

Well, if you're not set up 100% properly to run non-seq, than you will hate the lag on any set of non-seq turbos. The old style BNR comp wheels are very different from stockers, so be careful. As Dale said, erring on the side of caution is prudent

Rich

 

i have BNR stage 2's and the purple box running at 14psi fine now for over a year

 

if it was tuned for 11 psi dont go over it...dont wanna buy a new engine.

 

have you, by chance, had a chance to dyno ur bnr's or run it at the track?

 

The set he is buying has been converted back to sequential.

Because then you have to tune it. It's not plug and play. Most people don't have tuners near them and it doesn't take much to ruin an engine if you don't know how to tune it yourself.

 

werd

 

I believe his fastest time to date was a 12.7....w/ a 2.4 60'....highest MPH was 115mph. So if everything would come together right, good launch, good mph, then he would be looking at around a 12.1 - 12.3 pretty easily.

 

Yes, it's fine.

Honestly, the older BNR's aren't flowing all that much over the stock twins. You can see that from the various dynos of guys running the BNR's verses the stock twins at higher boost levels. However, just like the stock twins, with a programmable ECU there is always room for improvement.

 

I will have to respectful disagree

The old style stage 3s have trapped 125 on pump gas, and I made the 40-140 mph sprint in 14 secs with mine. I would like to see someone on stock twins duplicate either of those (and I don't want to hear about JD either, lol).

Rich

 

hey ian tot u were sellin the car anywayz why spend the mula???

mike

 

you forget to include the requisite 'koo' in dere aight

 

lol, im not selling the fd! i think you may have me confused with someone else.

 

Rich, just like JD, you are the minority.

Just because one person does it, does it mean everyone will? If you exclude JD, then you can exclude yourself as well by that logic.

If these BNR's were flowing that much more over the stockers, there would be a MUCH wider range of power differences than we have seen. The BNR's in question here, put down about 370rwhp with a streetport, PFC, full fuel system, etc at 17 PSI (Steven Kan tune).

Pettit ECU's on stock fuel systems (ported motors) have put down 360rwhp at 15 PSI on stock twins. If the BNR's are flowing THAT much better, there would be a MUCH wider range in the power differences.

Disagree all you want, but unless the BNR's are putting down 450rwhp, it's not a quantum leap over the stockers as plenty of people have been nearing the 400rwhp range on the stockers.

 

You guys are cracking me up. So who wants to buy my old style BNR's. I can make them seq. or non. up to you. I have manifolds for both and a 30 second weld on the prespool door is all that is needed. I cut the orinial weld to try them sequential.

 

Not streetable, corrected, consistent 400 rwhp. No way. Dyno sheets can lie, trap speeds don't. I have ridden in 3 old style bnr 3 cars at around 17 psi, and they sure as hell felt as fast as mine, no hard data unfortunately. 3 cars, mine, bryan's, and spo's, that is 6 that in my opinion were/are more than capable of trapping 125 mph in the 1/4 on pump gas. Find me 6 stock twin cars that can do that.

We shall agree to disagree.

I offer you a truce

 

If every strip is different, how is that any more consistent as a basis for comparison?

I have no doubt that the BNR's can/do provide a little more "ummph" than the stockers. Enough to make a CFM difference that would cause a problem with a rechipped ECU? That, I seriously doubt.

 

Because many people intentional manipulate dyno results, making a lot of dyno charts highly suspect. Most tracks are within a few tenths of a second of each other, and I have never heard of trap speed fluctuating substantially from track to track.

The BNRs seem to make the biggest diff from the stockers above about one bar of boost, so we are in agreement there.

Also, I am just using trap speed as a good comparison of acceleration and real-world horsepower. I road raced multiple times with my old BNR 3s and was very happy with them in that application as well.

 

oooo! a disagreement between two of the most most knowledgeable fd owners i know. there is not room for two of you... only one will prevail.

it would be funny to see jimlab on this too!


botom line i decided to back out. i trust both rich and kyle, but just felt uneasy. i know those turbos are in good condition & ebb (matt) is a good guy. he is more than willing to work with you on the purchase of his turbos.

thanks to everyone for helping with my decision and advise (bryan @ BNR, Mahjik, GoodfellasFD3S, pettit, Ebb)

 

I want to see Rich and Kyle get together and talk about this in person. I would just sit quietly and enjoy. I think my car would have run 120+ if I would have ever finished a run. I would walk away from a 118mph supra consistantly on highway pulls. Who wants them?

Matt

 

While 1/4 times will differ from track to track, the trap speeds will as well. If it's a terrible track, how are you going to get traction to get any speed. While the times are more dependent on reaction and launch technique, trap speed is still being able to put the power down and still maintain traction. That will vary from track to track depending on the condition of the track. How much will it vary? I have no idea as drag racing is pointless IMO.

I don't know about that. I never agreed on anything there. However, I as I said above; corrected or not, the old BNR's have not put out a substantial extra amount of horsepower over the stock units. Some more? Sure. Enough to make a difference in CFM and cause problems with rechipped ECU's? I have yet to see any data that supports that. If you are telling me that the old BNR's are flowing like a T-78 (which I think we can all say will change the CFM), then I'll need some proof.

Some people choose dyno's, some people choose G-tech, other's choose trap speed. Everyone has their reasons for choosing whichever measuring stick they want to use but it doesn't invalid any of the others. It's just personal choice as there can and will be faults to point out with each one. However, per discussion, there is no data supporting that the BNR's flow so much that the change in CFM will cause a problem with a rechipped ECU.