blue plug
Moderator: John_Heard
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- Posts: 212
- Joined: Fri Mar 14, 2008 2:52 pm
- Location: Plano Texas
blue plug
I was looking at my plug autolite 3923 and the tip is blue about 1/8 - 1/4. I know it is getting hot should I change. I went one colder but it is still projected. I tried a race plug and it was to cold. I was recomended by trickflow the fr5 or 2924 for the street. I run a 125nos shot with 4* out the motor has 10.3 to 1. What would you do.
My car is not as fast as I think it is.
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- Posts: 212
- Joined: Fri Mar 14, 2008 2:52 pm
- Location: Plano Texas
Re: blue plug
i would go with ngk plugs that way you will melt the plug tip before a piston just a thought
check this out http://www.dragstuff.com/techarticles/s ... rence.html
check this out http://www.dragstuff.com/techarticles/s ... rence.html
best to date N/A 8.91@153
psca westcoast heads up racing open comp
67 Camaro RS/SS
BBC Powerglide 4800 stall 4.11 29.5x10.5W
http://www.chpdragracing.com
psca westcoast heads up racing open comp
67 Camaro RS/SS
BBC Powerglide 4800 stall 4.11 29.5x10.5W
http://www.chpdragracing.com
- Chevyfireball
- Posts: 51
- Joined: Tue Oct 31, 2006 5:05 pm
- Location: Napier, New Zealand
Re: blue plug
By the tip, do you mean the electrode or the ground strap? If its the ground strap, thats showing you where the heat is reaching and you can tell how your timing is. Mike Canter has a tech article on here somewhere that explains it all... real good reading.
'It Ain't Over Til It's NOVA'
Re: blue plug
The autolite 3920 series is a projected tip, ok for daily drivers but treacherous for a hot rod esp w/nitrous. replace them with AR3933 (same heat range) and see if that doesn't make better sense to you after a hard pass.
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