1Revvin7

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.

ColinRX7

!!!











Dude, I owe you a drink or something LOL

1Revvin7

And I know its fast because I just did this:

https://www.nopistons.com/forums/ind...howtopic=43437

sidewinderx7

107% duty cycle? How do you get over 100% duty cycle?

and at WOT your a/f was 11.0? You need to get that on a dyno and check get some graphs up

setzep

what's wrong with 11:1 ?



Looks like your getting the car sorted out.

sidewinderx7

nothings wrong with it, i just want to see some dyno graphs of it

BigTurbo74

I got the 107 from the e6k......

mazdaspeed7

The injector is static at ~90%. Anything over that, and it just fails to close. 107% is possible because the engine needs the injector to be open that long to give the required fuel, but its physically impossible at the injector.



Ive seen 120%.....oops.

RETed

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

j9fd3s

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



ive seen 130% before, oops