Finally! BNR Stage 3 high boost dyno results
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Originally Posted by fastcarfreak
Cost is much less, and they make about the same power as a T78. Well worth it if you ask me.
A Greddy T78 will out spool them and out flow them!!!!
Greddy will easily handle boost up to 30psi if not more and ~500rwh.
JD
#27
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Originally Posted by dubulup
are you seeing max boost ~5200?
seems like the air path of twins make dyno plots a little wavey???
seems like the air path of twins make dyno plots a little wavey???
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Originally Posted by GoodfellaFD3S
thanks T. I think your FD is going to have an insane powerband, something like 3000 to 8000 . I still have the stock pump wiring, but I think that would manifest itself in a pressure issue, which we didn't experience.
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Originally Posted by Boostn7
You're kiddin' right ???
A Greddy T78 will out spool them and out flow them!!!!
Greddy will easily handle boost up to 30psi if not more and ~500rwh.
JD
A Greddy T78 will out spool them and out flow them!!!!
Greddy will easily handle boost up to 30psi if not more and ~500rwh.
JD
I agree that the t78 will handle 30 psi, but most people wont ever even touch 20 psi. I rode in rich's car and my t78 definately is no faster spooling then the bnr twins. At the boost level in question, they are very evenly matched. If your looking to run more boost, then the t78 is the better choice, but if you dont plan on going any higher then this, no reason not to use the bnr turbos.
Adam
#33
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On the way back from the rotor fest when we got on Rt 80 Rich got into it and he rapidly closed the distance between us. This got me thinking.... I wonder what his HP to Weight ratio is. If you start with a stock curb weight of 2750 Lbs.... factor in a conservative weight loss of 150 Lbs, which would account for the alllll the delete you've done and do the math based on his latest HP figures... that would put him some where around 6.175Lbs to 1 HP ratop.... Jeeze.... no wonder you crawled up my tailpipe sooooooo fast !!!
Better get an FAA Certificate for this beast!
Better get an FAA Certificate for this beast!
Last edited by karken29; 07-11-05 at 05:06 PM.
#34
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Originally Posted by rotorbrain
dude, thats nice. . . the part about the injectors scares me, though. . . i have the same configuration. if i dont hit 400rwhp with my car because of these stupid fuel injectors. . . my car will have a brand new dent!!!!!
oh, and btw rich. . . you gotta fill me in on how that desert feels. . . cause it looks like ill be experiencing it before the years over. :/
oh, and btw rich. . . you gotta fill me in on how that desert feels. . . cause it looks like ill be experiencing it before the years over. :/
don't worry about the injector discrepancy. I really need to get to a dynojet for my own piece of mind on that subject.
re: iraq, pm me. A five minute phone conversation will increase your chances of survival ten fold.
Rich
#35
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Originally Posted by Boostn7
Congrats Rich !!!
Nice numbers :-)
Depending on your base fuel pressure your injectors should flow up to ~480rwh close to 95-100% inj duty.
No full boost 'till ~5200rpm !!!!
Boost looks unstable as well going by your torque curve.
If you're still using the Mazda turbine housings I believe you will/are at the limit of flow thru them....no matter what compressor.
Nice numbers :-)
Depending on your base fuel pressure your injectors should flow up to ~480rwh close to 95-100% inj duty.
No full boost 'till ~5200rpm !!!!
Boost looks unstable as well going by your torque curve.
If you're still using the Mazda turbine housings I believe you will/are at the limit of flow thru them....no matter what compressor.
I agree with your fuel info. Something is odd with the results, 420 shouldnt correlate to almost 100% FID.
You are right on with regard to boost, it spiked then dropped down a bit and fluctuated as well. I am running an ancient profec b. Perhaps switching to something more up to date will help......
#36
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Originally Posted by Boostn7
You're kiddin' right ???
A Greddy T78 will out spool them and out flow them!!!!
Greddy will easily handle boost up to 30psi if not more and ~500rwh.
JD
A Greddy T78 will out spool them and out flow them!!!!
Greddy will easily handle boost up to 30psi if not more and ~500rwh.
JD
#37
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Originally Posted by darkphantom
BADASS NUMBERS FROM THE BNR'S. is that sequential. you should be able to do at least 16psi on pump gas with good tunning
#38
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Originally Posted by dubulup
are you seeing max boost ~5200?
seems like the air path of twins make dyno plots a little wavey???
seems like the air path of twins make dyno plots a little wavey???
#39
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Originally Posted by fastcarfreak
I agree that the t78 will handle 30 psi, but most people wont ever even touch 20 psi. I rode in rich's car and my t78 definately is no faster spooling then the bnr twins. At the boost level in question, they are very evenly matched. If your looking to run more boost, then the t78 is the better choice, but if you dont plan on going any higher then this, no reason not to use the bnr turbos.
Adam
Adam
#40
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Just for clarification, the y axis says flywheel torque, so the hp is being measured from at the flywheel...correct? If so, then RWHP would be less. I've never used this type dyno, so I was just wondering if that is what it means. That would put it back down into the 360 to 370 rwhp range on the 420 flywheel run. The dynopack the kind that to take your wheels off and hook it up? If so, they should be able to switch parameters and tell you what the rwhp was on those runs.
Am I off base with this?
Tim
Am I off base with this?
Tim
Last edited by Tim Benton; 07-11-05 at 05:58 PM.
#41
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Originally Posted by Tim Benton
Just for clarification, the y axis says flywheel torque, so the hp is also from at the flywheel...correct? If so, then RWHP would be less. I've never used this type dyno, so I was just wondering if that is what it means. That would put it back down into the 360 to 370 rwhp range on the 420 flywheel run.
Am I off base with this?
Tim
Am I off base with this?
Tim
I just got off the phone with Jay from Car Version 2, who is the owner and dyno operator. He assured me that the #s on the graph are rear wheel and not flywheel, and that they are comparable to a dynojet, if not a bit lower. As to why in the hell it says 'flywheel torque' rather than 'rearwheel torque' is some kind of a glitch in the program that they can't change . At any rate, the #s are all rear wheel, which is the important thing. Looks like close to 500 motor hp and 400 motor torque at 17.5 psi .
Rich
#44
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Originally Posted by Tim Benton
Glad to hear but also a little envious First we have beautiful car pictures in a thread, now 420+ rwhp, it's getting a little to much to handle. Try to spread the love out over a longer period of time so we can enjoy it more.
Tim
Tim
Rich
Last edited by GoodfellaFD3S; 07-11-05 at 08:35 PM.
#45
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Originally Posted by FD Rey
Good numbers indeed. Time to update your sig Rich!
Also, I forgot to list the power fc in my mods list. can't forget about engine management, hehe.
#46
Originally Posted by Tim Benton
Glad to hear but also a little envious First we have beautiful car pictures in a thread, now 420+ rwhp, it's getting a little to much to handle. Try to spread the love out over a longer period of time so we can enjoy it more.
Tim
Tim
LOL !!!!!!
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this may be old news, but I thought it was worth posting (from Chuck Westbrook)
Note that the stock wiring suffers from voltage drop which limits capacity of stock or aftermarket pumps. Re-wiring the pump with heavy gage wire for full battery voltage will provide a huge improvement in fuel delivery. This trick to up the voltage can be taken to the extreme with aftermarket boost-a-pump electronics that further increase voltage under boost.
the wiring on these cars is total crap, let's face it
Note that the stock wiring suffers from voltage drop which limits capacity of stock or aftermarket pumps. Re-wiring the pump with heavy gage wire for full battery voltage will provide a huge improvement in fuel delivery. This trick to up the voltage can be taken to the extreme with aftermarket boost-a-pump electronics that further increase voltage under boost.
the wiring on these cars is total crap, let's face it
#49
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Originally Posted by fastcarfreak
I agree that the t78 will handle 30 psi, but most people wont ever even touch 20 psi. I rode in rich's car and my t78 definately is no faster spooling then the bnr twins. At the boost level in question, they are very evenly matched. If your looking to run more boost, then the t78 is the better choice, but if you dont plan on going any higher then this, no reason not to use the bnr turbos.
Adam
Adam
Full boost @ ~5200 is "big-turbo" territory !!!
As far as the BNR's.....they are performing well *but* their only issue is those stock turbines.....I've been saying this since the 1st set of BNRs !!!! _ they could only flow X amount exhaust no matter how big those compressor/turbine wheels are before generating too much back pressure between motor and turbo where hp hits a brick wall.
Rich: If your fuel pump is not wired here's a little trick.
Run a thick gauge wire (10 gauge) to the pump from the battery fused. Have it power up thru a relay which gets its turn signal signal from the "speed relay" white/red wire. The fuel pump "speed" relay is in the relay box near the fans and latch. This white/red wire only comes on with load or 0psi +.
Therefore @ idle and cruising pump will only see ~9 volts and then battery voltage when under boost:-)
Do not use boost-a-pump with higher voltage on those Supra pumps....they will not last !!!
#50
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Originally Posted by Boostn7
Rich: If your fuel pump is not wired here's a little trick.
Run a thick gauge wire (10 gauge) to the pump from the battery fused. Have it power up thru a relay which gets its turn signal signal from the "speed relay" white/red wire. The fuel pump "speed" relay is in the relay box near the fans and latch. This white/red wire only comes on with load or 0psi +.
Therefore @ idle and cruising pump will only see ~9 volts and then battery voltage when under boost:-)
Do not use boost-a-pump with higher voltage on those Supra pumps....they will not last !!!
Run a thick gauge wire (10 gauge) to the pump from the battery fused. Have it power up thru a relay which gets its turn signal signal from the "speed relay" white/red wire. The fuel pump "speed" relay is in the relay box near the fans and latch. This white/red wire only comes on with load or 0psi +.
Therefore @ idle and cruising pump will only see ~9 volts and then battery voltage when under boost:-)
Do not use boost-a-pump with higher voltage on those Supra pumps....they will not last !!!