High IDC's?

[screwdgie]

OK I'm running 15 psi on a 14b with a 190 pump and stock 450's. And yet I am seeing duty cycles over 100%, sometimes as high as 115%! I am positive there are no boost leaks, as i tested for them and it held 20 psi fine, then I took the car to DEVO tuning and they also did not find any leaks either. I don't know what could be causing such high duty cycles!? I removed the lower honeycomb in the maf and pulled back the screw, would hacking more off the bottom portion help my situation? Anyone have any insight on this?

 

[SBR Joe]

Stock injectors with all the bolts ons you have will cause the high DC. You have to remember your flowing a good bit of air and the injectors cant really compensate. You could go with a keydiver chip and will probably bring them back down a bit because it will compensate for what you have, but regardless, time for an upgrade.


Joe
Slowboy Racing

 

[screwdgie]

I see what you are sayingg, but even back when the car only had a catback and on 15 psi, i would still see like 95% which seems high also. But regardless I just picked up a free 2g mas and I will be adding some 550s and afc shortly

 

[SBR Joe]

Ya, i have seen some cars with high duty cycle with not much done..then i have seen with almost the same bolt ons you have and be only running low 90%. Thats a DSM for ya!

Joe
Slowboy Racing

 

[screwdgie]

haha go figure