850 primarys

[93type-x]

Ok I got an apexi FC , non seq twins and a WGT street port.... they are large ... I got white in my manifold Im guessing LEAN yes? so I put 850s in my primary slots I got 10s leading and trailing.... but it sounded rough like a bridge port at 1200 rpm at idle from cold then cut out Im guessing flooded... I pulled the plugs but couldnt turn it over to clear it out cos my fuse on the pos cable (battery in boot) on restart. do i just put the 550s back and try again or should i try some fuel adjustment on the mapping solve it???

[sway2003]

I think i am under standing this as : you swaped to 850 primaries with making no alterations to the set up in the power FC.....

If so are you not surprised that you have added an injector that is one third larger than the orginal one, in a situation which requires no more fuel and the car floods ?

You need to change the injector settings for the primary injectors.  

I think you best option here is to take the car to a rotary tuner.

Just changing the injector settings will not cure the whole problem. How eva it will help.

If you want to play with the injector settings change the primary injector in the power fc to 850. then the inj size adjuist to 64.7 and the lag differance to 0.04 m/s.

this should get the car running better. the idle will still be rich.