Originally Posted by RETed' date='Jun 26 2004, 07:45 AM

Haltech E6K extrapolates duty cycle by comparing fuel injector ms versus RPM.

If you have glitches in the RPM, it's possible to have inaccurate duty cycle readings, like those over 100% like that.



Recheck the datalogs, but check the injector MS instead of DC.

Also, check the RPM's, as I bet you had a spike in there.





-Ted

Originally Posted by 1Revvin7' date='Jun 25 2004, 06:52 PM

Walrbo fuel pump, 4x 550 cc cleaned injectors



@ 11.6 psi in 4th gear @ 5200rpms I hit 107.8 injector duty cycle.



Using a fuel calculator I guess I have 270rwhp



using a .66 bsfc 15% drivetrain loss



afr was 11.0 then just went lean as all hell and I let off.

intake temps were high, 120-130 a WOT.







So whats up with all the haters thinking you can't hit 300rwhp on the stock turbo? I know its not a dyno graph, but soon I will get one.

Originally Posted by 13BAce' date='Jun 26 2004, 12:28 PM

Don't trust those calculators to give you HP. I once hit 75% duty cycle with

4 1600 cc injectors. I just plugged that into the calculator and it said 691.6 flywheel HP. That's not even close.

Originally Posted by 13BAce' date='Jun 26 2004, 10:28 AM

Don't trust those calculators to give you HP. I once hit 75% duty cycle with

4 1600 cc injectors. I just plugged that into the calculator and it said 691.6 flywheel HP. That's not even close.

Originally Posted by j9fd3s' date='Jun 26 2004, 06:57 AM

you can set the haltech bars a lot higher in ms than is actually available at that rpm.



ive seen 130% before, oops

Originally Posted by RETed' date='Jun 26 2004, 05:46 PM

Ah, I assumed you knew the limits of fuel injector pulsewidth versus RPM's.



Remember 8.5ms @ 7kRPM!!!





-Ted