Wow that carbon fiber engine cover looks Killer with the cosworth plenum!

 

yes, I do. Sorry for the wait. I have to dowload adobe standard trial to convert the scanned pdf into individual jpegs.

 

Red: MD 5/16 iso spacer, MREV2

Blue: Cosworth Plenum

Breathing mods: Arc intake, Amuse titan tube, nismo headers, PE HFC's, Tanabe y pipe, Amuse Titan exhaust, UR pulleys, Technosquare reflash


All the pulls made today with the cosworth plenum:




comparison:

Green: MD 5/16 iso spacer, MREV2, z tube and nismo filter (no reflash)
Red: MD 5/16 iso spacer, MREV2, Arc intake, Amuse titan tube, nismo headers, PE HFC's, Tanabe y pipe, Amuse Titan exhaust, UR pulleys, Technosquare reflash
Blue: Cosworth plenum Arc intake, Amuse titan tube, nismo headers, PE HFC's, Tanabe y pipe, Amuse Titan exhaust, UR pulleys, Technosquare reflash

 

seems like the MD's the best.

 

For N/A

 

Wow. That's not a small difference.

Do you have the actual dyno data? I can put it into Excel for each gears average analysis.

 

that's all I have

 

Anybody know if Osiris would help me out at all with the Cos?

 

I don't believe we've seen a comparison for FI between the Cosworth and MREV2+spacer. As I recall, the prior dynos were against the revup.

 

You're right, there has not been a comparison of F/I b/w cos and MD setup.

There was a prior dyno comparison of F/I with APS plenum and then the Cosworth showing substantial gains though.

 

Interesting results. Nice engine bay shots by the way.

 

thx for the kind words Kwame.

 

I forgot to mention I've been getting much crappier gas mileage with the cos installed (14 city, 16 highway).

 

why were the two revved out differently? i get the pre-reflash one, but why was the cosworth not pulled to 7500?

 

The first graph just displays the best pulls.

Look at pull 13 in the 2nd graph (green line)--revved to 7500 rpm, Didn't see the need to keeping revving it that high, power is decreasing. That pull just wasn't the best pull of the day, so it wasn't overlayed on the first graph.

 

Just to get things clear for my own sake. This car was reflashed before the Cosworth Plenum install, but the tune was not changed after the plenum had been installed?

 

I see that you have a Technosquare reflash. Was that done on their dyno in real time, or did you mail your ECU in for the reflash?

I don't think Osiris can help you much because the UpRev guys won't have Cosworth plenum in their database of mods. They don't know how to tune for a Cosworth without ever having one. If you could get your car to them so they could tune it on their dyno, that might help.

If it was me, I'd get an engine management system that could be tuned in real time. Then let a good tuner work on it and see what it needs. Maybe get a nice Haltech that would provide total control over the air/fuel ratio and timing...

 

johnny, not to be critical but looking over your mods, it seems like you are going for performance "bling" "baller" status which nets you almost no performance. the arc stuff is cool and the amuse stuff is cool but when thousands of dollars equals 260whp, i would be pissed. with the money you've spent you could easily be boosted. i commend you for picking quality stuff but man, seriously, unless you are driving with a see through hood, i just dont get the engine bling, baller thing.

 

yea, I know, I'm waiting for the HKS sc to come out, then I would sell the ARC intake and amuse tube

 

i figured something had to be up.