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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
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MSD 6A with iridium plugs?

  • Thread starter Thread starter demon40
  • Start date Start date Jan 31, 2007

demon40

New Member
Jul 24, 2004
69
0
0
canton, nc
Jan 31, 2007
#1
  • Jan 31, 2007
  • #1
Ok so have a MSD 6A box, MSD coil, Accel 300+ plug wires, MSD cap and rotor, and NGK iridium plugs. I called MSD today and they told me not to run the iridium plugs because they will get too hot. What does every one think about this.




Thanks in advance
Brandon
 

'94ChickStang

Member
Sep 27, 2004
301
0
17
northern ca
Jan 31, 2007
#2
  • Jan 31, 2007
  • #2
demon40 said:
Ok so have a MSD 6A box, MSD coil, Accel 300+ plug wires, MSD cap and rotor, and NGK iridium plugs. I called MSD today and they told me not to run the iridium plugs because they will get too hot. What does every one think about this.




Thanks in advance
Brandon
Click to expand...

He's probably not making it up and I've seen tons of posts about how crappy iridium plugs are in our cars

iron heads= Autolite 24's
aluminum heads= Autolite 3924's
 

fastgtfairlane

New Member
Apr 7, 2006
266
0
0
Feb 18, 2007
#3
  • Feb 18, 2007
  • #3
autolite or motorcraft always seem to run better in a ford engine than anything else
 

DDSTANG94

New Member
Dec 9, 2006
465
2
0
FRASER, MICHIGAN
Feb 18, 2007
#4
  • Feb 18, 2007
  • #4
never use nything but a copper plug in a 5.0
 
Z

zZsKyZz

Member
Dec 1, 2005
503
0
17
Feb 18, 2007
#5
  • Feb 18, 2007
  • #5
I use autolite 24's. Just a basic $1.50 plug. Autolites for fords, champions for gms.
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
31,179
33
129
Feb 18, 2007
#6
  • Feb 18, 2007
  • #6
I know some tuners don't like iridium as much as copper, but I wasn't aware that there were tons of posts about this. Iridium is still fairly uncommon.

Unless I was forced induction, I would likely not even consider iridium. With the ignition parts you listed, you very well might have such a combo however.

Good luck.
 

Red1990Lx

Member
Nov 2, 2006
79
0
7
Ohio
Feb 18, 2007
#7
  • Feb 18, 2007
  • #7
SplitFires!

Try SplitFire spark plugs, kinda espensive, but if you are boosted, these are nice! I have 'em and they do nicely. Part number for Edelbrock heads (which I have) is 645663 and are $6 each but have a two year warranty!
 

trav_19

New Member
Oct 29, 2006
810
0
0
Jackson, MI
Feb 18, 2007
#8
  • Feb 18, 2007
  • #8
iridiums have a very small electrode so i can see where heat fromt he stronger spark could cause a problem but as far as only copper i run double platinum in my 93 and they are so much nicer then the coppers i replaced i love them...i need plugs in my 94 so im wondering what i should use also i have a msd coil..motorsports wires can you use a msd cap and rotor on the stock dizzy? but i think i will be using copper in my application at least at first because with the nitrous kit going on i will be tweeking it a lot and if i burn up some plugs i dont want to be throwing my money away
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
31,179
33
129
Feb 18, 2007
#9
  • Feb 18, 2007
  • #9
trav_19 said:
iridiums have a very small electrode so i can see where heat fromt he stronger spark could cause a problem but as far as only copper i run double platinum in my 93 and they are so much nicer then the coppers i replaced i love them...i need plugs in my 94 so im wondering what i should use also i have a msd coil..motorsports wires can you use a msd cap and rotor on the stock dizzy? but i think i will be using copper in my application at least at first because with the nitrous kit going on i will be tweeking it a lot and if i burn up some plugs i dont want to be throwing my money away
Click to expand...

I believe that plat plugs and nitrous is a big no-no.

You're one of the few whom has had decent results with plats on a fox III. They can lead to a low and slightly erratic idle, and a cut-out at around 4K RPM.
 

trav_19

New Member
Oct 29, 2006
810
0
0
Jackson, MI
Feb 19, 2007
#10
  • Feb 19, 2007
  • #10
i havent put plat plugs in the 94 yet and with you mentioning the not to compatiable with nos i think i will def stick to copper then thanks
 

quickstang_1994

Member
Oct 12, 2005
43
0
6
South Carolina
Feb 20, 2007
#11
  • Feb 20, 2007
  • #11
demon40 said:
Ok so have a MSD 6A box, MSD coil, Accel 300+ plug wires, MSD cap and rotor, and NGK iridium plugs. I called MSD today and they told me not to run the iridium plugs because they will get too hot. What does every one think about this.




Thanks in advance
Brandon
Click to expand...

I have been running them for about 6 months with no problem. I have MSD coil, 6a box, MSD wires, and MSD distributor. They are perfect for boost.
 
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