Spark plugs

S

sage2k

Member

May 23, 2005

645

0

16

Baton Rouge, LA

Oct 13, 2005

#1

• Oct 13, 2005

• #1

When I bought my car it had bosch platinmum 4 prong spark plugs, i read our cars dont really like platinum, What kinda effect would having them do on my car? Would switching to some normal autolites benifit me any?

These plugs are new looking and in good condition

 

HISSIN50

"How long does it take to get help in here?

15 Year Member

Nov 29, 1999

31,179

33

129

Oct 13, 2005

#2

• Oct 13, 2005

• #2

If you dont have issues, dont sweat it. With the fox guys, they often notice a lower idle and a higher RPM cut-out (around 4K RPM). But many folks do run plats and notice no issues. I would not buy them to install but if in there and doing well, leave 'em be IMHO.

Good luck.

 

KamiKaziDK

Member

May 16, 2005

555

0

17

Mesa, Az

Oct 13, 2005

#3

• Oct 13, 2005

• #3

I've had the bosch +4s in my car for 2 years and had no problems at all with them. Putting in some the accell header plugs soon. The only time you really shouldn't use platinums is if you're running NOS. But like they say....if it ain't broke....don't fix it......and if you're a 5.0 owner, keep modding the SOB

 

Venom351R

Founding Member

Apr 27, 2002

4,548

40

98

MAINE

Oct 13, 2005

#4

• Oct 13, 2005

• #4

Even if there is some type of benifit of running those plugs its not worth the extra money over autolights or Motorcraft plugs since 94-95 cars run just fine on those and they are cheap.

 

RFMustangGT

Member

Apr 4, 2005

294

0

16

Knoxville,TN

Oct 13, 2005

#5

• Oct 13, 2005

• #5

I had plats in mine and it's ran like crap. swithced to autolites and it ran like a champ. then again, my car is crazy.

 

S

sKyZ

Member

Apr 28, 2005

138

0

17

Scranton PA

Oct 13, 2005

#6

• Oct 13, 2005

• #6

Autolite 24's here.. I've tried NGK and bosch plats. didn't notice a difference in anything.. I think the autolites are the best so far.

 

blksn955.o

Founding Member

Mar 15, 2002

3,263

0

66

st.louis mo 314

Oct 13, 2005

#7

• Oct 13, 2005

• #7

A buddy had some botched plat. plugs and we went to the track. His truck ran .5-.7 slower than his prev. track times with the same 60ft. He put the old plugs back in and ran .4-.5 faster with the crappy old plugs, I cannot remember the exact amount of time lost or picked back up but do remember it was over .5 slower and thought it was even slower than that and he was slower than his avg. with the older plugs but still quite abit better than the brand new botched plat. plugs.

 

illwood

Member

Apr 3, 2004

636

1

19

Worcester, MA

Oct 13, 2005

#8

• Oct 13, 2005

• #8

blksn955.o said:

A buddy had some botched plat. plugs and we went to the track. His truck ran .5-.7 slower than his prev. track times with the same 60ft. He put the old plugs back in and ran .4-.5 faster with the crappy old plugs, I cannot remember the exact amount of time lost or picked back up but do remember it was over .5 slower and thought it was even slower than that and he was slower than his avg. with the older plugs but still quite abit better than the brand new botched plat. plugs.

Click to expand...

I'm not doubting you, but was the effect due to the "platinum" itself, or were the "botched" plugs in the wrong heat range for what he had done to the truck?

 

blksn955.o

Founding Member

Mar 15, 2002

3,263

0

66

st.louis mo 314

Oct 13, 2005

#9

• Oct 13, 2005

• #9

They were the exact same heat range (factory range), gapped the exact same as the req. gap for the auto, and just plain sucked.

For the money and perf. just get some copper core plugs either autolite or NGK The one thing I dont like about NGK is there sometimes hard to get 2ranges colder and if you do they are gen. in the irrid. type plug and those are not cheap.

 

S

sage2k

Member

May 23, 2005

645

0

16

Baton Rouge, LA

Oct 13, 2005

#10

• Oct 13, 2005

• #10

well see everyone is saying if it aint broke dont fix it, and its not broke really, but see if i will get a few extra hp by going back to autolites i think i probably should?
but if im not going to gain any performance then im not gonna waste time

 

HISSIN50

"How long does it take to get help in here?

15 Year Member

Nov 29, 1999

31,179

33

129

Oct 13, 2005

#11

• Oct 13, 2005

• #11

Guys, platinum is very hard and does not conduct nearly as well as annealed copper (autolite 25's, etc). This is simply a fact and Blk, I dont doubt your story. Plats are (IMHO) great for cars which are not performance oriented or that have inaccessible plugs. Otherwise, it is like trying to autocross on cheap hard tires (which last forever) rather than some supple tires which dont last as long. (the one thing with copper is that it suffers more gap erosion than plats, since it is softer and runs hotter).

Good luck.

 

WhiteDevil

New Member

Feb 4, 2003

2,717

0

0

San Diego

Oct 13, 2005

#12

• Oct 13, 2005

• #12

HISSIN50 said:

Otherwise, it is like trying to autocross on cheap hard tires (which last forever) rather than some supple tires which dont last as long.
Good luck.

Click to expand...

That is a really good analogy i like that.

 

95Vert

New Member

Aug 19, 2004

1,785

0

0

North Mexico (deep south Texas)

Oct 13, 2005

#13

• Oct 13, 2005

• #13

sage2k, the autolite are like a buck fifty each. Get them and decide for yourself. I know I used platinum once and when I did another tune up, I used autolite and I noticed a difference.