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  #1  
Old 08-26-1999, 09:22 PM
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Question spark plugs

I`m looking for the best aftermarket spark plugs for my truck 97 f-150 4.6L splitfires or something along that line, in platinum ..What is out there and what is the best? Please someone HELP on this . E-mail me on this. TSJC2442@AOL.COM THANKS!!!!!!

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  #2  
Old 08-27-1999, 01:36 AM
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Hi TERRY THOMP,

Did you try doing a search on spark plugs. I would bet there is a ton of info on that subject.

Good luck,
Mark G
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  #3  
Old 08-27-1999, 01:41 AM
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Do your search on BOSCH +4 .
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  #4  
Old 08-27-1999, 06:45 PM
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Dear Terry,

I would suggest using the Bosch Platinum +4 spark plugs; they are $2 a plug cheaper than the factory plug, and they're automatically indexed in the cylinder head due to their design. We're using them in all our vehicles, getting better power and gas mileage.

------------------
Mike Troyer
Performance Products, Inc.
National Distributor of Superchips
(540) 862-9515
Email: mtroyer@compuserve.com

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  #5  
Old 08-28-1999, 10:31 AM
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I recomend the BOSCH +4 too. Truck ran smoother once they were installed Click the image to open in full size.

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97F150 XLT SC 4x4 Flairside 4.6 V8 5sp Dk Toreador Red, 3.55LS
ARE tonneau cover, p255/70rx16 tires (came w/235), Superchip
Pioneer CD w/4 Polk Speakers & Clarion APA5240amp, skid plates
bed liner, side window deflectors, reese hitch, K&N air filter
40s-2chamber Flowmaster, Bosch +4 spark plugs, rustproofing
Better Built Stainless nerf bars


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  #6  
Old 08-28-1999, 11:35 AM
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My 4.2L has 23k miles on it. Is it "too early" to install some new Bosch plugs? I would like to have a smoother running engine and a fraction (anything) better mileage.

Thanks.

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1998 F150 xl reg. cab, 4.2L, 3.55
gear, auto, Lund tonneau bed cover, Pioneer CD receiver, EVERYTHING on the truck is black(including bumpers, grille, handles), aluminum wheels, K&N filter, Belltech 2" rear drop.

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  #7  
Old 08-28-1999, 11:39 AM
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Cool

According to the owners manual you don't HAVE to change them for 100,000 miles.
Then again we don't HAVE to do any other mods to our trucks either.
Consumer reports gave bad review on the 4 prong plugs.
Tells you how much they know about truck performance.

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99 XLT 5.4l reg cab
120" Wheelbase
4 wheel disc/ABS
5 star larait style wheels
Toreador red 2tone
3.55 gears
255/70/16 OWL
Delta toolbox
Eclipse 5340 cd player
Memphis ARCS50 component speakers (excellent sound)
Sherwood amp
subwoofer coming soon
More mods as funds become avalible.

[This message has been edited by 54regcab (edited 08-28-1999).]
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  #8  
Old 08-30-1999, 03:36 PM
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I was also thinking about going to the Plat +4's. Should I replace the wires, (Since I'm in there)if so which brand. Besides Magnacor's(too much $$$). Thanks

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1997 F150 XLT 4.6L Auto 4x4 ORP SC 3.55LS Oxford white, Med. Graphite Int. Bed Cap,Superchip,AirRaid,Bug Deflector. 3" Flowmaster 40 series,Bassani Nascar Tip.


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  #9  
Old 08-30-1999, 08:56 PM
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Red face

Did u know that the bosch +4`s ars a single platinum plug ? Splitfires platinum 3`s are triple platinum,& the factory ones are double platinum. So I`m going with splitfire platinum 3`s. What do ya`ll think ?
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  #10  
Old 08-31-1999, 04:34 PM
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How about '99 Lightnings? I thought somewhere I read that platinum plugs were not recommended for supercharged engines. Is that true?

------------------
'99 Black Lightning


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  #11  
Old 09-01-1999, 12:04 AM
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What does "triple platinum" mean?
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  #12  
Old 09-01-1999, 09:58 AM
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Bosch+4 are the best plugs out there.

------------------

97 F-150 S/C 4x4 ORP XLT 4.6 tow package
K&N , Flowmaster cat-back w/3" chrome tips. Bosch+4 plugs, Superchip.
Patriot fiberglass toneau cover, Westin chrome step bars.
Future mods: underdrive pulleys,4" lift, 16.5 wheels with 33's,ram air hood,and someday a supercharger.


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  #13  
Old 09-01-1999, 10:33 AM
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Indyfan- "triple platinum" means that all three electrodes of the Splitfire plug are platinum plated [or tipped]. Older plug styles only have two electrodes so platinum plugs in that style can be either "single" or "double" depending on how many of the electrodes are platinum.

From what I understand, the Bosch +4 seems like a good design. Someone correct me if I'm wrong, but it seems like I remember reading that platinum plugs aren't the best performance plugs. They do, however, last a long time. So, with a platinum center electrode (for longevity) and 4 non-platinum electrodes (for performance), it looks like Bosch may have something good.

There have been reports, however, of poor performance in older (pre '97) engines when using platinum plugs. For those applications, I just use "regular" plugs.

Neal

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1997 4x4 Expedition- 4.6L, true dual exhaust w/glass-packs, K&N air filter, SuperChip, airbox mods, Edelbrock shocks, 285/75R16 BFG ATs, Optima "T-Bone" wheels, and Clarion In-dash CD player.

1993 4x2 F150 Reg. Cab LWB- 5.0L, cat-back dual exhaust w/glass-packs, K&N air filter, Superchip, fresh paint, and Line-X bedliner.
http://members.visualcities.com/NoMo

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  #14  
Old 09-01-1999, 03:01 PM
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Hey Nomo---How about explaining your duel exhaust system. Might want to duplicate on my rig. TIA.

------------------
97 F150 XLT SC 4x4 Bosh+4
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  #15  
Old 09-01-1999, 06:42 PM
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Not much to explain- this is what the shop did:

Cut the left (driver's) side pipe where it comes across the vehicle. Then cut the pipe where it exits the second cat on the right side. Remove the Y and everything behind it. Then replace with separate pipes welded to where the originals were removed. Both glass-packs fit where original muffler was located and both pipes exit behind right rear wheel. No "H" pipe.

Factory manifolds and cats are still intact. If your PC has sound, you can hear it for yourself: http://members.visualcities.com/NoMo...tive/packs.wav

Neal

------------------
1997 4x4 Expedition- 4.6L, true dual exhaust w/glass-packs, K&N air filter, SuperChip, airbox mods, Edelbrock shocks, 285/75R16 BFG ATs, Optima "T-Bone" wheels, and Clarion In-dash CD player.

1993 4x2 F150 Reg. Cab LWB- 5.0L, cat-back dual exhaust w/glass-packs, K&N air filter, Superchip, fresh paint, and Line-X bedliner.
http://members.visualcities.com/NoMo

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Old 09-01-1999, 06:42 PM


 
 
 
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