cityofcaterpillars

I'm running RC 750cc injectors. I have a sporadic misfire at idle. I've read that this is kind of a common thing with RC injectors. My question is is there any way to fix this and is it bad for the car? I included pics of my map in Hondata.
Setup is
d16z6 .75 over
8.8:1 wiseco pistons
Greddy 18G Turbo
Walboro 255 pump
stock rail and FPR

DickensA

Not the injectors unless they are very dirty.

I run 1000cc injectors and my idle is solid at 14 afr at 800 rpm

DickensA

you should have a saddle area for fuel.

You dont idle in one cell. Its interpoolating between 4. Make those four cells the same and the sorrunding ramp up

cityofcaterpillars

I'll have to look. It shouldn't be. I haven't touched the timing aside from 1 degree per lb of boost.

DickensA

Sorry i didnt notice you posted the fuel map in percentage

post your timing map and your ignition corrections for idle

cityofcaterpillars

I've never messed with the ignition Comp either.

DickensA

Go into the idle parameter

it should be an ignition timing table for idle

cityofcaterpillars

This one?

DickensA

Yup change the ign from -5 to -10

and from 5 to 10

that should help keep your idle steady then mess with the fuel to get it where you want

cityofcaterpillars

Ok I will give that a shot. Would you mind explaining exactly what that does?

cityofcaterpillars

You mean these ones correct?

cruizinmax

iTrader: (2)

The parameters mentioned, I don't believe would cause a miss at idle. Only keeping it from going higher and lower.

How wide is your plug gap? Copper plugs? A/f ratio at idle?

cityofcaterpillars

I believe .30 for gap. They are the OEM NGK'S. A/f is between 38.9 to 4.7. I'm having trouble getting it to be stable for some reason. It seems to happen more when it's up around 14.7. Like I said the miss is very sporadic.

JRCivic1

If your A/F is around 14.7:1 with RC (Lucas style) injectors, it is likely that the engine will stutter sporadically. If you richen the mixture up to the 13.0-13.5:1 A/F range, the idle will clean up... however, this may foul your spark plugs if the car idles for long periods of time.

cityofcaterpillars

I've read that other places too. What causes this