Have a EF8 CRX doing circut racing and running a fully rebuilt b16A engine (gen 2)
It is running a type R intake manifold, 62mm throttle body cold air intake, and K&n filter, engine has the head shaved and is running 11.45:1 compression, and a set of Skunk cam gears ,standard everything else, tanabe 4-2-1 extractors and 2 1/4 inch mandrel exhaust running 2 resonators. And running a SPOON ecu

Now after a weekend of testing and racing on the second day checked the plugs to find that they are running almost white (running NGK irridiums) and also using race gas.

Now this means to me that the car is running very lean?????? So to make a quick fix we taped the fuelpressure regulator with a a rod and a hammer to crush it up to give it more fuel pressure this worked as the car started to run lumpy at idle and then wouldnt idle. But after another few laps came in and pulled them again and it had only midly made any difference they were still very white grey colour??

Car is running very well but dont understand why it appears to be running so lean or is this due to the race gas (AV gas) ??? Does the timing we have set have anything to do with it??, car is running almost full ignition advance and is running 1 degree advance on the inlet cam and 3 degrees retard on the exhaust cam. we had been playing with different settings all day and this seemed to be providing us with the most useable power

Is this a fuel problem ie needs more fuel pressure or something else
Plugs as far as I know are supposed to be running a lite creamy brown????????????

ANY IDEAS PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!

 

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what fuel pressure are you runninG? and what for fuel pump do u have? if it runs good, i wouldnt mess with it too much. but i'd definatly look to upgrade the pump if its stock and get urself a gauge...