This is topic What kind of spark plugs 95 mustang in forum Tech Talk at Northern California Ford Owners  .


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Posted by Built88LX (Member # 10758) on :
 
Trying to figure out what brand of spark plug to run on my stock 95 mustang 5.0 and what to set the gap to.
 
Posted by Blind (Member # 3052) on :
 
8x autolite 25's, factory gap is .054

[ June 20, 2012, 09:51 PM: Message edited by: Blind ]
 
Posted by norcalfiddy (Member # 11207) on :
 
yup, just basic copper autolites.
 
Posted by Built88LX (Member # 10758) on :
 
Thannks for the advice the guy I bought the car from was running autolite platinum plugs.
 
Posted by Built88LX (Member # 10758) on :
 


[ June 20, 2012, 10:09 PM: Message edited by: Built88LX ]
 
Posted by nitrous_bob (Member # 77) on :
 
id gap at .046"

the car is 20 yrs old, and will probably run better with hotter spark...albeit a smaller gap

im just saying try it....it'll work trust me
 
Posted by triple b (Member # 8763) on :
 
platinum last long time but dont produce as good a spark as plain old copper, copper wear-out faster copper better cheaper and more HP
 
Posted by just_another_ 91 (Member # 9317) on :
 
i would gap them at 35 my car runs best when gapped at 35
 
Posted by Built88LX (Member # 10758) on :
 
Is there really a noticable difference between gapping them at .046 compared to .054
 
Posted by nitrous_bob (Member # 77) on :
 
quote:
Originally posted by Built88LX:
Is there really a noticable difference between gapping them at .046 compared to .054
there can be...drastic too

if it runs fine at .054" (and you might not know it runs fine til you regap to .046" and run both gaps at the track and compare MPH) then leave it

but im on my 6th 5.0 since 1990 and always run .046" after having some spark related issues in the late 90's

i also spray...so i need the smaller gap anyways...but even if i didnt...id gap that way
 
Posted by SacStangDriver (Member # 8304) on :
 
you spray on .046 and no det problems? what do you drop your timing down to and what shot?
 
Posted by nitrous_bob (Member # 77) on :
 
nope none....and i use stock heat range for 0-100 shot

i usually jet at 80 dry, timing at 12* and 87 octane as long as its under 80* at 80* or warmer i drop about 2* for every 10 of temp

then i drop timing but dont change octane or plugs/plug gap

i once sprayed 75 on 14* and 87 octane and it was warm out...but it was night time so maybe a little better air. i wouldnt really do it again on purpose...but the car ran well
 




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