Spark plugs

[Bazildup]

Can anyone tell me what plugs I can use when using NOS ?

 

[XR8tt]

Bit like how long is a piece of string ?? But going from what we have used on Fords..
2 range colder than std.. With closer gap.. Down to .75...
Some retard ?? If you can, with fuel enrichement.. Often the kit comes with line to fuel reg to push fuel pressure higher.. A good fuel pump helps..
Usually 1 range for every 100 h.p..
Use short protruding plugs also, they cool better...
More info..
http://www.lextreme.com/forums/showthread.php?t=4854

 

[Bazildup]

Thanks XR8TT
I'm running a single fogger with 125hp jets and have a very good fuel pump.
so far there is no retard...
The car ran well but after the last run it developed a slight misfire when driving at part throttle.
I haven't pulled the plugs yet.
I want to go one step colder.....do you think it will be ok or do I have to go colder?

 

[XR8tt]

Going one colder than you have to just for the strip etc isn't going to hurt.. We virtually cut a std SOHC Ford 6 cylinder in half when a piston failed and the rod cut the block in half!!!
We quickly learnt how to tune better !!!

 

[Bazildup]

Thanks for the info.
We ran a [email protected]/h at a JHB altitude on Sunday.
The motor is still standard, box also standard. So far it held together very well.