color of sparkplug

[odie22]

iam have problmes with my crx, i have a fully built b20 vetc and i just put a head gasket on. the motor is 12:1/2 to 1 compresson and iam running 93 pump gas as of now. just put a new set of plugs in maybe a 2 days ago and i took the crx out for a 20 min ride and came back to check things out and check the plugs and they had a blue/purple tint to them what does this mean? to lean, maybe i need more spark or do i need to go to 110 vp race fuel:thinking:

[greasemunkey]

too much gas I would think...what injectors you running?

[odie22]

if it were too much gas would the plugs be black...
injectors are 440s

[Krappy]

running octane boosters? denatured alcohol? or any other gas additives? that could cause the plug to turn colors...

[odie22]

iam just running pump gas. no additives. aslo when it get hot there is a little skip in the motor... when the motor cools off i can start it back up then its fine up till it gets some temp in the motor. could this be lack of spark like do i need to run a msd box? i just have never seen plugs that turn blue/purple it just seen to me that its getting too hot or something. and thank for all the help so far reps for the help:D

[greasemunkey]

not too sure but wouldn't high compression do that anyways? what brand spark plug do you have?

[mr.koupe]

http://www.ngksparkplugs.com/techinfo/spark_plugs/faq/faqread2.asp

[patrick4588]

what gap do you have the plugs at?>

[odie22]

first set was at 35 may be 37. this set i went to 44 that what the crv calls for. both sets were NGKs

[scttydb411]

silly question, but is it tuned yet? this could be the root of your problems. you can't just drop in a 12:1 on a stock ecu or basemap and everything be a-ok.

colder plugs
tune
done

[patrick4588]

f
silly question, but is it tuned yet? this could be the root of your problems. you can't just drop in a 12:1 on a stock ecu or basemap and everything be a-ok.

colder plugs
tune
done

true that