he will get more power out of seventeen psi than twenty...I will bet my hat on it.

j

 

From what I've heard they are effecient at 20psi, so I don't see how they would lose power.

 

I don't see the BNRs running much past 18 psi at 420-430 rwhp - 20 psi is like running the stockers at 18 psi - what's the point. 15-17 psi is definitely the efficiency range. My dyno shot up 37 rwhp from 14 to 15 psi with the BNRs

Nice numbers, Rich - with fan and temps in the 60s-70s you'll hit 400 rwhp EASILY. I'm sure your car would crap on mine on the highway. I still like the sequentials. Me and artguy stand alone I guess

 

37 rwhp for 1 psi, thats crazy, i wish i had my $2150 right now!!!

 

Those were uncorrected #s from a Jan dyno pull in August, and Dave's hard drive crashed shortly thereafter. Point is, I never saw the damn sheet. Of course, I believe Dave, but I'm wondering how peaky the chart looked and if it might have been more than 15. Let me tell you, my 7 ismuch faster now.

 

Did somebody say Road Trip?

 

Hello Johnny,

yeah, no doubt his car is insane.....give Kan the same # of hours tuning my car and we'll see what happens .

Oh, and it's 376

 

Yeah, I'm inclined to agree. He only made 2 pulls, so I'm sure dynoing in that heat didn't hurt anything, just deflated the output.

 

Thanks, Eddie. It brightens my day as well.....helps make the days go faster out here

 

I'm inclined to agree. Hmmm, so 37 rwhp gain from 14 to 15, what about from 15 to 17 ?

Someday you, Jason and I should line up on the highway and film the result.....of course, it could end up with us behind bars

 

No wonder my ears were ringing........

Rich, this 90+ degree weather is killer for turbo cars and NO fan on the dyno !!!!!
with your intercooler in the engine bay it heat soaks very fast........

Your 1.07kg/cm2 is more like ~16.5psi and the BNR's should more power up 18psi easily....after 18psi gains might be very minimal. with race gas and more timing even more hp is available.

SO 400-420rwh.........just a matter of time.

That 37rwh gain from 1psi !!!!!! well.....it would be nice!!!

Rich....just get back home so we could enjoy a nice highway pull with 3-4 FDs side by side.

 

Cops can't catch you with that kind of power

 

Sweet numbers , I put down 320wr on my stage II's at 13psi, with my stock cat. Midpipe and boost controler are on the way , so I think 365-375 will be realistic for these . I do have a mild street port , running 550 primary and 1300 secondary .

It pulls like a beast, but they will have to be removed soon. I am eating oil up and its now venting out my BOV .I guess I should have waited to get these , I was one of the first to try them and it sounds like BNR has had some quality control issues with these.

End result, well I am going single GT35/40 here I come and I will laugh when I compare my dyno sheets to these BNR's 450wr here I come

 

Its also physically impossible if everything else is kept the same. Even if you didn't raise the charge temp at all, the absolute max you could get on this setup with an extra 1psi is ~15.5 hp. Something had to have changed -whether it was the fuel or timing cell, dyno, etc.

Anyways, 380 rw and these little cars move! Congrats.

 

Well, looking at my dyno graph, Dave made 3 pulls at 14 psi and it hit a max of 325 rwhp - next pull was at 15 psi and it went up to 357 rwhp - very next pull was 366 at 15 psi. I was having trouble with my stock diff and he changed it out for a low mileage diff and said he saw almost a 30 hp jump - he could have changed it between the 14 and 15 psi runs...I thought he did it between the 10 and 13 psi runs - I only dynoed at 278 at 10 psi but I guess this was with the bad diff.

 

Correct me if I'm wrong, but I thought 1.05 on the pfc was 15 psi and 1.15 would be 16?

 

1 kg/cm2 = 14.223 PSI
1 Bar = 14.508 PSI
1 Atmosphere = 14.696 PSI

multiply accordingly LOL

info from http://xtronics.com/reference/convert.htm

1.07 KG/CM2 = 1.07x14.223 = 15.21 PSI

1.15 KG/CM2 = 1.15x14.223 = 16.356 PSI

 

Bah... Dyno sheets aren't everything.

 

yeah...and Ill believe it when I see it. lol...

 

running your 400+ HP FD 13 times down the 1/4 mile in one hour is though. without breaking anything too!!!!

 

>>>Correct me if I'm wrong, but I thought 1.05 on the pfc was 15 psi and 1.15 would be 16?<<<

Well...if have a PowerFC in your car and an aftermarket boost gauge you'll know what I'm talking about.....

The PowerFC readout for boost is a bit lower then actual...when you hit 1.14-1.15kg/cm2 you're easily at 17-17.5 psi.

I hope evry PowerFC owner knows this.

 

you still have double throttle?? tisk tisk Rich

I dynoed 362 @ 15 psi with a cracked apex seal and C-dawg only revving it out to 7500....?? The seal let go completely a few hours later.

Hopefully I can swap out that housing and you get yours working right and we can do a little comparo constrasto on the 287 no?

btw - i forgot to tell you i got to weigh my car for my DITY move and the fat hoe weighed 2720...you ever weighed yours?

 

Yeah, I'm sorry if I disappointed you, cadet ******** .

There was something wrong on the dyno......my power started to seriously tail off after 7200 rpms. Something about 94 degree heat and *no* air to the intake

Sure, we can make a run.....I've pulled you every other time we've raced on the highway (long time ago though)

My FD weighs right at 2700 I believe, with half a tank and full stereo, subwoofer etc.

 

whoa whoa whoa.....cadet?? didn't you know i graduated??

i'm guessing you never saw what i did to my UIM - i got rid of my double throttle when i went non-sequential which i believe was still long after the last time we ran on the highway....and i would hope that you would have pulled me back then with a tuned street ported motor against my stock port base mapped motor.....********....

2700 with full stereo is good. my car was pretty much empty and 3/4 tank of gas to weigh 2720.....i guess the sunroof adds quite a bit.