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why not bosch platinums?

  • Thread starter Thread starter feifong
  • Start date Start date Apr 21, 2005
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feifong

New Member
Apr 4, 2005
319
0
0
mesa
Apr 21, 2005
#1
  • Apr 21, 2005
  • #1
why are these bad ?
 

srothfuss

Last night I stabbed the same guy 7 times in a row
Oct 17, 2004
1,796
3
0
Woodward Ave.
Apr 21, 2005
#2
  • Apr 21, 2005
  • #2
Spark Energy

The short version of this: Copper wire transfers electricity better than platinum.

Since the pre '96 cars use a distributor & remote coil setip to transfer electrical energy to the spark plug you want to provide the "path of least resistance." The copper plugs provide better spark and thus..... more burn which equals more power. Using 'standard' plugs isn't bad. They work just the same, you just have to change them a little more.

Now, if you have a 'coild on plug' ignition setup then that is a different story. Shorter electrical path => means less voltage drop and resisitance so you can use a Platinum plug if you want to.
 

feifong

New Member
Apr 4, 2005
319
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0
mesa
Apr 21, 2005
#3
  • Apr 21, 2005
  • #3
what do you guys use on your mustangs?
 

srothfuss

Last night I stabbed the same guy 7 times in a row
Oct 17, 2004
1,796
3
0
Woodward Ave.
Apr 21, 2005
#4
  • Apr 21, 2005
  • #4
Best thing to use (for me) has been the regular old motorcraft plug. Some guys here run the Champion plugs, but their engines have more work done to them than my little stocker...
 

notchback

Founding Member
May 30, 2000
1,950
0
36
St Clair Shores MI
Apr 21, 2005
#5
  • Apr 21, 2005
  • #5
stock plugs for $.99 each

i had a horrible mid rpm miss w/ brand new bosch platinums...i replaced the coil, fuel pump, and fp reg b4 i just dumped the plugs back for 50k mile'd stockers....problem solved
 

Shakerhood

20+ Year Stangneter
Oct 28, 2004
3,356
208
114
Ohio
Apr 21, 2005
#6
  • Apr 21, 2005
  • #6
Cant go wrong with Autolite 25s gapped to .054!
 

89MustangGX

I have nothing productive to add!
Jul 3, 2001
10,262
1
0
Mill Creek, WA
Apr 21, 2005
#7
  • Apr 21, 2005
  • #7
Autolite or Motocraft.
 
J

jaackal

New Member
May 12, 2003
402
0
0
NJ
Apr 21, 2005
#8
  • Apr 21, 2005
  • #8
i am running the bosch +4 in my 4.7L Durango which has coil on plugs and it runs fine no problem, i never ran the bosch in the mustang but i do run the Autolites which is the same thing as Motorcrafts
 

Henceforward

The Avatar Master
Founding Member
Jul 17, 2001
485
0
0
Apr 21, 2005
#9
  • Apr 21, 2005
  • #9
I run Autolite AP25 Platinum plugs from WalMart.

Gapped .050
 

squeeeg

Founding Member
Jul 4, 2000
1,905
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0
Michigan
Apr 21, 2005
#10
  • Apr 21, 2005
  • #10
Shakerhood said:
Cant go wrong with Autolite 25s gapped to .054!
Click to expand...

 

Shakerhood

20+ Year Stangneter
Oct 28, 2004
3,356
208
114
Ohio
Apr 22, 2005
#11
  • Apr 22, 2005
  • #11
squeeeg said:
Click to expand...

Whats wrong with Autolite 25's?
 

89MustangGX

I have nothing productive to add!
Jul 3, 2001
10,262
1
0
Mill Creek, WA
Apr 22, 2005
#12
  • Apr 22, 2005
  • #12
Shakerhood said:
Whats wrong with Autolite 25's?
Click to expand...

He was agreeing with you.
 

Shakerhood

20+ Year Stangneter
Oct 28, 2004
3,356
208
114
Ohio
Apr 22, 2005
#13
  • Apr 22, 2005
  • #13
89MustangGX said:
He was agreeing with you.
Click to expand...

Ok, I guess I just took it wrong.
 

squeeeg

Founding Member
Jul 4, 2000
1,905
0
0
Michigan
Apr 22, 2005
#14
  • Apr 22, 2005
  • #14
ya sorry i was agreeing with you. I knew eventually that was going to be taken wrong. Autolights are great plugs and can be bought for really cheap if you go to the right place.
 

crazypete

All my crevices are greased.
Oct 22, 2004
930
4
18
Arlington, MA
Apr 22, 2005
#15
  • Apr 22, 2005
  • #15
Platinums also suck because they have an itty bitty pin electrode surrounded by ceramic. They foul real real easy. With the coppers, you have a huge (well, relative to the platinum) electrode. It takes quite a bit of gunk to foul those plugs.

Plus.... I dont know about you good folks, but I always buy 10-12 plugs when replacing mine as I break at least 2 during install and usually another one later on while working in the bay. If you break a 99 cent plug, whatever. If you break a $5 or $7 plug, thats a different story. I'm running 99 cent ford explorer champions side gapped (40-p's take a different plug). I let the 1200 MJ ignition system make the fat spark.
 

Fishhawk

New Member
Jun 10, 2004
281
0
0
Michigan City, Indiana
Apr 22, 2005
#16
  • Apr 22, 2005
  • #16
Damn. Never broke a plug in my life. I switched back from the Bosch Platnum plug to the Autolite. Both car and truck run better. The way I understand it is that Bosch has a one size fits all philosophy when it comes to heat ranges. They generally run to hot for the 5.0. I noticed a three mile per gallon increase in my truck after I switched.
 
B

BaXTeR3221

Member
Jan 12, 2004
917
0
16
Orange County, NY
Apr 22, 2005
#17
  • Apr 22, 2005
  • #17
I just broke a plug last weekend while installing my headers. Previous owner had bosch platinums in the car, though i mananged to foul those with the bigger injectors. Looks like i'll go with some autolites
 

crazypete

All my crevices are greased.
Oct 22, 2004
930
4
18
Arlington, MA
Apr 22, 2005
#18
  • Apr 22, 2005
  • #18
Regular plugs come out at an angle and are thus out of the way when you have nice sparse stock manifolds. Once you move to equal shorty headers, you start breaking plugs. Then you switch to gt-40p's that have the plugs sticking straight out, require special headers and you are breaking quite a few plugs. My favorite is the platinum+4. Any gimmick will sell these days. Now you have 4 electrodes shrouding the spark only 1 of which gets the spark anyways and since they are all thin, most of those burn away sooner.
 
W

WhiteHeat306

Member
Nov 28, 2004
283
1
16
Philadelphia Suburbs
Apr 22, 2005
#19
  • Apr 22, 2005
  • #19
Bosch's are a waste of money. Autolites all the way baby. "The official spark plug of NASCAR" lol
 

squeeeg

Founding Member
Jul 4, 2000
1,905
0
0
Michigan
Apr 22, 2005
#20
  • Apr 22, 2005
  • #20
I broke a plug taking it out once but never putting one in.
 
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