Loss in performance... 1441 motor

[8secbusa]

Ok, I think i am out of ideals.. Have a 1441 that ran great, at first.. 8.8" at 159.. Then its performance seemed to deteriae.. Today it runs 9.15-9.20 at 153-154.
On the dyno. I do see a 22hp loss. Now I did switch from MRX01 to C12 fuel, and assume that cost me 8 maybe 10 at very most. The bike just feels super lazy
What I have done:
- Re degreed the cams, multiple times
- Replaced valve springs
- Replaced bearings, rod/mains
- Cleaned the injectors
- Changed the plugs multiple times
- Removed the Bazzaz box and use ECU editor

Cranking compression has remainied the same, leak down as well. the bike truely impressed me at first, now it just seems flat. The corrcted air density today was identical the where it was when it was running good, about 1000ft.  Thoughts????

[WICKSBUSA]

c12 fuel sucks compared to mrx01.  It will make less power than even pump gas.  If you are lookimng for a cheaper alternative to mrx01. try q16.  make sure if you use either of the vp fuels that are oxy fuels to drain the tank after use and run some pump gas through it.

[midnight black man]

check fuel pump and if you use ti valves check them very carefully...seen it a couple of times in gen 2 motors...

[8secbusa]

Also replaced the fuel pump.

[RansomT]

Can you post the dyne sheet?

[003busa]

Any luck finding out what happened w/ the power??
Did you try going back to mrx01??

[YSI408]

Any updates?