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spark plug gaps
#11

Something I've never understood--

What is the thing with colder plugs? As opposed to hotter plugs? I hear this and I just draw a blank.
" Auto racing, bull fighting, and mountain climbing are the only real sports ... all others are games."
- Earnest Hemingway
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#12

Here you go I would try to explain to you but I would just sound like an idiot and probably confuse even more. http://www.autolite.com/framer.cgi?page=...racing.htm

hope this helps!
Shawn

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My vehicle
1983 Turbo Coupe with a GN intercooler, dawes device set at 22psi of boost,K&N cone,fully ported e-6 manifold,gutted and ported intake, ported stock valve head, Ranger cam set -2 deg, and Full 3" exhaust with 3" magnaflow, 190 pump, a TRI AX shifter,Madhatter clutch quadrant,Racer walsh adjusatble cam pulley large VAM, LA3, brown tops, and 88 TC wheels. Next mods, boxed control arms, Subframe connectors, 3.73 8.8 rear,Larger front brakes, and poly bushings. Then i have no ideaSmile
has run a best of 14.71 at 92mph on drag radials. New times with GN intercooler, LA3, brown tops!!!! 14.9 at 96mph on my street tires.
New times with head ,e6 and ported intake, 100 race fuel, and 28psi 13.83 at 103mph!
273RWHP and 342FTlbs at 24psi
2000 jeep GC
1979 mustang notch
84 ranger 351w
1998 contour svt
3tc powered sandrail.
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#13

Here is one with a pictures so you can see what is happening. http://www.howstuffworks.com/ingition-systems2.htm
Quote:Originally"
Something I've never understood--

What is the thing with colder plugs? As opposed to hotter plugs? I hear this and I just draw a blank.



[This message has been edited by joebltzfk (edited 12-09-2001).]
If it ain't old, it ain't s***!!!!
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#14

Gap it down till it runs. I was having problems with .032 when I increased the boost to 18 psi. Spent $300 on an ignition system plus $25 for a trigger switch. Ran a back to back comparison with/without the system and found if I gapped it to .030 it ran the same (that was using the butt-0-meter). Have to admit the aftermarket ran smoother to 6200 rpm and would fire a gap of .055. It would also burn the plugs up faster.

The turbo is creating all the power, just gap the plugs intil they ignite the mixture. If you have to spend money on an ignition system, I would recommend that it goes to the bottom of the list.
88TC 5sp
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#15

Quote:Originally posted by joebltzfk:
Here is one with a pictures so you can see what is happening:
howstuffworks.com/ingition-systems2.htm

It doesn't work, try THIS instead. [Image: smile.gif]

C'ya - RAY

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Former 2.3T courier (blow-thru carbed) & soon turbo ranger



[This message has been edited by TurboRay (edited 12-09-2001).]
Placerville, California
(former)  '78 2.3T Courier w/blow-thru Autolite 2bbl carb ~ (current)  '87 2.3T Ranger w/PiMP’d EFI
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#16

Strange. It works fine for me. Same site.
Quote:Originally posted by TurboRay:
It doesn't work, try THIS instead. [Image: smile.gif]

C'ya - RAY

If it ain't old, it ain't s***!!!!
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#17

Maybe phone your local dealership to find OEM Plugs for your engine. Gap distance can retard or advance timing! Torque plugs to 18lb/ft. Over tightening will also change heat range!! 60-70% of your plugs are cooled through the threads!
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#18

I'll have to vouch for stock plugs and wires too - cured my TC!
Mike - '14 Focus ST, '03 MR2 Spyder 6spd SMT, '08 Ford Edge
Previous Cars:'85 XR7,2 '87 XR4tis,'88 TC, '89 Merkur Scorpio, '91 Escort GT, '94 Taurus SHO
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#19

I'll have to vouch for the Bosch plat. I have a combined 140k of exp w/ them. Used w/ stk coil & wires, Mallory coil & spiral core wires, now use Bosch Spiral Core. I have tried Spitfire reg, Mtrcrft reg & Autolite reg. Bsch plat gave most consistent perf, gas milg & lasted longest. joebltzfk makes damn good point. Chk ur wires w/ ohmmeter, chk cap & rotor. NEAT TIP - if ur rotor has a solid tip, cut teeth into it w/ fine hobby file, |-|-| instead of ---, will get better voltage to plug. Ford & Mercedes can't be wrong.

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'86 SVO Stock except for Racer Walsh Ultralite Adj Cam Sprkt & Mallory TFI coil, Reg Bosch Platinum, K&N replcmnt - 161k mi, runs strong

Had '84 SVO for 90k - Stock except GW camber plates, relocated oil filter (for 1qt), Bosch Plat & Mallory TFI coil

Had '85 TC 5 spd - Stock, Bosch Plat & Mallory TFI coil

Had '74 Nova - Teenage Hot Rod, 350 ci, Edlbk Perf Pls cam & manfld, Comp Cams 1.6 roller tipped rckr arms, Mallory Promstr coil, std 1-5/8" hdrs, no traction
'86 SVO - RW Adj Sprkt & Mllry #29214, Lucas inj, K&N rplct, Wlbr 155, KB Extrem Mtrx - 186k mi
-Had '84 SVO & '85 TC, 1995 FSAE Champ - UTA
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#20

Almost forgot, ur looking for 3k-7k ohms per foot for carbon core (stock-type) wires. Tight bends while installed can incr ohms. Have you looked at the plugs? What do they look like?
'86 SVO - RW Adj Sprkt & Mllry #29214, Lucas inj, K&N rplct, Wlbr 155, KB Extrem Mtrx - 186k mi
-Had '84 SVO & '85 TC, 1995 FSAE Champ - UTA
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