RB20 cold start with Cams

[nj1]

Just wanting to know peoples thoughts/experiences on cold start with RB20 runnings cams.

 

I am finding it takes 3-4 attempts to start the car, it idles out and usually on the 4th go it's good.

 

The cold start idle is quite rough/fluctuates and varies between just about stalling to about 1500rpm while warming up.

 

Also warming up takes about 5-10 mins and driving it before warming up is not really possible due to the fluctuating idle.

 

Is this normal or does the tune need some adjustment?

[Piggaz]

Get the tune looked at.

[Ben C34]

Not normal

[Dose Pipe Sutututu]

Bad tuner.

Needs more timing when cold and more fuel. Also you'll need more duty on the idle control valve.

You will need more cranking fuel and a bit of post start fuel.

What ECU? Send me your map.