Took the car to the dyno . . . not pretty :-/

[DSMvroom]

Well mods are in the profile. MBC is set at 16psi, but boost spikes 17 first and immediately settles, then drops all the way down to 10psi by the time it hits 6k.

Anyway the numbers are pretty gross.

169.5hp / 201.51tq

I don't know what's up with the air/fuel. My guess is it is because stupid ass decided to vent his bov and it was probably leaking?

http://home.comcast.net/~albertcj/dynosheet.jpg (~90kb)

Also I should note however that I did do a log and no timing seems to have been pulled . . . . (I did a few logs on the highway on my way home). If it is worth mentioning, I had done pulls just the other day with the bov recirculated and the numbers are almost identical.

 

[JKGMotosports]

When you vent you run really rich between shifts and in general. Being too rich rubs horsepower, so if you had some kind of AFC, or DSMLINK You could easily tune for best air to fuel mixture. DSMLINK is a lot better, but you need an EPROM ECU. That will definetly give you much better horsepower figures.

 

[PieEyedPiper]

If you know you're venting..why don't you just recirculate? I just wouldn't spend the time/money on a dyno if I knew my car was only 5min away from being set up "properly".

Regardless, yeah venting probably threw off your results a bit. While others may claim you're too rich because of this..from looking at your O2's and considering my own experience and tastes, I'd say .92's in the upper RPM range are too lean for me.

Try a fuel pump rewire. My o2's went from a bouncing .92-.94 to a much more solid .96 in the low range and .94 in the upper range. And while I've yet to determine how "ideal" those numbers really are, I'm satisfied with knowing I'm not too lean and my o2's don't bounce around anymore.



Edit: Maybe lower your MBC to ~15psi? I'm not sure why your boost dips all the way to 10psi, my BOV leaks baaad at around 5psi. but I can hold 12psi. to redline. Everycar is different, but I'd check for boost leaks, get your BOV recirc'ed assess your fuel system and give that dyno another shot!

 

[DSMvroom]

yea i really kept tellin myself to put the recirc tube back on before we did the pulls but for whatever stupid reason i didn't. I'll go back on the dyno once I get the e3 16g slapped in there (hopefully by the end of august), and with the recirc tube in place of course.