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1999-2004 Saleen Mustang For the SN-95 New Edge platform. Be sure to specify year, model and equipment if asking for help.

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  #1  
Old 08-10-2009
lr281 lr281 is offline
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Default Spark Plug Replacement inquiry for '99 S281 SC

I want to replace the spark plugs on my '99 S281SC (approx 45,300 miles) and want to know what is the recommended brand along with gap specs.

LR281
99-0310 S281 SC
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  #2  
Old 08-10-2009
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Dave Dave is offline
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A few previous threads on spark plugs.

http://saleenforums.soec.org/showthread.php?t=3870

http://saleenforums.soec.org/showthread.php?t=5313

http://saleenforums.soec.org/showthread.php?t=5354
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Old 08-10-2009
lr281 lr281 is offline
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Thanks for the info Dave.
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  #4  
Old 08-16-2009
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SonicBlue SonicBlue is offline
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Just pulled a Plug.....
Motocraft AGSF -32PM
Gapped in at .62!!!!

Is that a stock plug!? The car has 35k on it, guess I'm off to the Autozone! What shoudl I get for a stock SC car......TR6's / TR6ix !? or is that only for if I'm pushing more boost!? (which I plan on doing!!)
Should I go one step colder than stock!?

Need help with how to change the rest of them too.....I had to pull up and disconnect the Drivers Side Fuel rail to get to this one (Was that right!?)
Never changed the plugs on a 2v before! Plus this Inlet tube on the passenger side is gonna be a big pain I can tell!!!

Thanks!
Quick replies welcomed!!!!!
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'03 SC Coupe (1 of 2) 380hp / 400tq @ 12lbs boost 18x10" rear wheel option
13" Saleen Brakes ◄ Chicane Intercooler ◄ 2.875" VI Xtreme Pulley ◄ 4" polished CAI
75mm TB ◄ Bassani Exhaust (Mid Length Headers, X-Pipe, Mufflers) ◄ FRPP 3.73 gears
90mm MAF/42lb Inj ◄ Ford GT Fuel Pump ◄ Rear LCA's ◄ Subframe Connectors + more!

Last edited by SonicBlue; 08-16-2009 at 10:39 AM.
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Old 08-16-2009
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SonicBlue SonicBlue is offline
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Well I attempted the plug change today and got through 6plugs before I gave up on the 7th & 8th!
There is NO way I can get to the two Passenger side rear plugs! Looks like the removal of the SC Inlet tube is needed and I am NOT about to attempt that on a Sunday Afternoon!

Gonna put the stock plugs back in and take it up to the Ford dealer this week to see what they can do!
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'03 SC Coupe (1 of 2) 380hp / 400tq @ 12lbs boost 18x10" rear wheel option
13" Saleen Brakes ◄ Chicane Intercooler ◄ 2.875" VI Xtreme Pulley ◄ 4" polished CAI
75mm TB ◄ Bassani Exhaust (Mid Length Headers, X-Pipe, Mufflers) ◄ FRPP 3.73 gears
90mm MAF/42lb Inj ◄ Ford GT Fuel Pump ◄ Rear LCA's ◄ Subframe Connectors + more!
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Old 08-16-2009
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Agent_177 Agent_177 is offline
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It can be done. I have done it when I changed to a 2.8 diameter pulley.
I also changed fuel injectors so I re-gapped the spark plugs.

I had to use a universal joint to get to the 2 rear spark plugs.

It is a PIA!
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