24 replies to this topic

[LUV MY RT]

stupid question and just trying to help

 

any chance the a/f guage went bad? or going bad?  did anyone try changing the guage as well besides just the sensor?

 

also i am confused how the fuel regulator can change if it has never been messed with since install?  is there a chance that it is went bad or going bad?

 

just shooting from the hip.

     I data log with a Trinity & I use a Aeroforce in the car that reads A/F when the motor is running. The A/F is the same on both.

[us1champ]

Interesting

Any idea how the regulator changed?

[LUV MY RT]

Interesting

Any idea how the regulator changed?

     Not sure how that happened. When I took the car to Mike to tune on the dyno It was set at 58-60 psi. I have not touched the regulator since then. When this problem came up I checked the gauge on the regulator & it running higher than normal. I removed the vacuum line on the regulator & it was at 68 psi. i did back the pressure back to 58 psi after talking to Mike about it.

[us1champ]

Interesting
Is this thing have some sort of spring system inside? I wonder it this is the route of the problem
You changed it 10psi to less pressure and it leaned it out ruffly .4

I just wonder is this is the problem

But I am a nobody on here so take that for what it is.
I just can't understand how a me mechanical device changes without either a issue is a physical change

I am curious to find out what the root cause

[1FST4DR]

There is a jam nut on the reg. its possible it wasnt tightened and maybe vibration moved it. Just a thought