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Author Topic:   Platinum Plugs????????
Ponygirl67
Gearhead

Posts: 259
From: Vancouver Island, Canada
Registered: Nov 2001

posted 01-26-2002 01:33 PM     Click Here to See the Profile for Ponygirl67   Click Here to Email Ponygirl67     Edit/Delete Message   Reply w/Quote
I bought Bosch platinum plugs to put in my 67 when I ever get around to finishing this tune-up, I have had totally mixed opinions about them, I have been told they will run really hot and too lean...has any one used them in their older stang????

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http://www.squeakie.stangnet.com
'67 Purple Mustang Coupe
Is it spring yet???

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kwazykat
Moderator

Posts: 4776
From: me??? what planet are YOU from!!?.... heh heh heh..... M&M member #92
Registered: Jun 99

posted 01-26-2002 02:51 PM     Click Here to See the Profile for kwazykat   Click Here to Email kwazykat     Edit/Delete Message   Reply w/Quote
hey grrl!

i put them in my 84 F-150 (TRUKGRRL)....
and have no complaints....

i dont know what the general opinions are,
but i have been satisfied with them in the trukkie application!

keep us posted

kk

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Fastymz
Gearhead

Posts: 2872
From: Reno Nv
Registered: Apr 2001

posted 01-26-2002 02:53 PM     Click Here to See the Profile for Fastymz   Click Here to Email Fastymz     Edit/Delete Message   Reply w/Quote
I have never used them,or have not heard anything about them.I know that was alot of help. I only use the autolite plugs.

SCOOP.

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65 coupe,351w,RPM intake,Carter625,shorty headers,2.5 exhaust, Flowmasters,C4,open 8" 2:80,Big Boss 429 hood scoop,Crager SS,Black Suede.
MEM#1240

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The Iceman
Gearhead

Posts: 1614
From: Shelton, CT
Registered: Jul 2000

posted 01-26-2002 04:26 PM     Click Here to See the Profile for The Iceman   Click Here to Email The Iceman     Edit/Delete Message   Reply w/Quote
Ive basically always heard that higher end spark plugs such as the platinums, etc are really only needed for higher hp/tq engines where a great deal of spark is always needed for long periods of hard running -- could be wrong though
Autolites work for me

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CrAzY Dan~
1965 Coupe "BeeBop" 200ci Straight "6"~2.77 3-spd w/Hurst Shifter~Pertronix Elec. Ign.~Flamethrower Coil~Flex-Fan~Clifford 6-2 Header~26" Smithys~3" chrome tips~'85 T-Bird TC buckets~'66 guages
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http://www.motorcities.com/contents/01GF9250033520.html
There's Nothing Wrong With A Little Six In A Classic Mustang! ;)

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mellowyellow
Gearhead

Posts: 3230
From: So. Fl.
Registered: Aug 2000

posted 01-26-2002 05:56 PM     Click Here to See the Profile for mellowyellow     Edit/Delete Message   Reply w/Quote
Bought new Autolites for my 65 today. Putting them in tonite. Work good for me.

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SteveLaRiviere
Administrator

Posts: 20744
From: Saco, Maine USA
Registered: May 99

posted 01-26-2002 09:43 PM     Click Here to See the Profile for SteveLaRiviere   Click Here to Email SteveLaRiviere     Edit/Delete Message   Reply w/Quote
Platinum plugs last longer, but they also run hotter, which can be a good thing or a bad thing depending on your carb's tuning. If your old plugs came out looking black and sooty, put the platinums in and don't worry about it. If the old ones came out looking white, you want to think about using other plugs or richening your carb or you'll create a pinging machine and ultimately, engine damage.

My preference is regular old copper core Autolites.

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'70 Mustang Mach 1 M code 351C 4V/FMX/3.25 open
'72 Mustang Sprint Coupe 351C 4V/FMX/4.30 Trac Lok
'94 F-150 XL 5.8L/E4OD/3.55 Limited Slip
'97 Probe GTS 2.5L DOHC

MCA Member # 47773

My favorite tool is Occam's Razor

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kcode
Gearhead

Posts: 1950
From: alvaton,ky,usa Suburb of Bowling Green, M&M #79, MCA #29208
Registered: Jun 99

posted 01-26-2002 09:51 PM     Click Here to See the Profile for kcode   Click Here to Email kcode     Edit/Delete Message   Reply w/Quote
I ran Bosch Plats in my coupe for about three years, I used three different heat ranges trying to find one that worked best. The trouble I had was that I kept changing engine components, cams and carbs. I had to use 14mm, 3/4 inch reach, and gasket seats with my aluminum heads. The plugs worked good.

I put Autolite plats in my 347.

Mike

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Ponygirl67
Gearhead

Posts: 259
From: Vancouver Island, Canada
Registered: Nov 2001

posted 01-28-2002 12:59 AM     Click Here to See the Profile for Ponygirl67   Click Here to Email Ponygirl67     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by SteveLaRiviere:
Platinum plugs last longer, but they also run hotter, which can be a good thing or a bad thing depending on your carb's tuning. If your old plugs came out looking black and sooty, put the platinums in and don't worry about it. If the old ones came out looking white, you want to think about using other plugs or richening your carb or you'll create a pinging machine and ultimately, engine damage.

My preference is regular old copper core Autolites.


Ok Steve, my old plugs did come out black and sooty looking, but now I am really thinking I should just take these back and get the Autolites, I have had such a totally mixed opinion on them.

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http://www.squeakie.stangnet.com
'67 Purple Mustang Coupe
Is it spring yet???

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TomP
Moderator

Posts: 3435
From: Delta BC Canada
Registered: Dec 99

posted 01-28-2002 02:00 AM     Click Here to See the Profile for TomP   Click Here to Email TomP     Edit/Delete Message   Reply w/Quote
donna

They'll work OK, it doesn't sound too lean... kind of a waste of money though.

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Ponygirl67
Gearhead

Posts: 259
From: Vancouver Island, Canada
Registered: Nov 2001

posted 01-28-2002 02:12 AM     Click Here to See the Profile for Ponygirl67   Click Here to Email Ponygirl67     Edit/Delete Message   Reply w/Quote
That's what I am starting to think too. So should I take them back and just get the autolites???? I would have some beer money then

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http://www.squeakie.stangnet.com
'67 Purple Mustang Coupe
Is it spring yet???

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Fastymz
Gearhead

Posts: 2872
From: Reno Nv
Registered: Apr 2001

posted 01-28-2002 02:34 AM     Click Here to See the Profile for Fastymz   Click Here to Email Fastymz     Edit/Delete Message   Reply w/Quote
BEER GOOD....Take them back get the autolites,buy beer, drink beer.

SCOOP

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65 coupe,351w,RPM intake,Carter625,shorty headers,2.5 exhaust, Flowmasters,C4,open 8" 2:80,Big Boss 429 hood scoop,Crager SS,Black Suede.
MEM#1240

https://mustangsandmore.com/ubb/Fastymz.html

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Rory McNeil
Gearhead

Posts: 516
From: Surrey, B.C. Canada
Registered: Nov 2000

posted 01-28-2002 03:20 AM     Click Here to See the Profile for Rory McNeil   Click Here to Email Rory McNeil     Edit/Delete Message   Reply w/Quote
I have heard that Platinum plugs don`t work very well for racing applications, but should be OK for a stock street car. I work at a Toyota dealership, & the only Toyotas that come with platinums are normally vehicles where the plugs are a real [email protected]& to change.(V6 Camry,& particularly the egg shaped Previa van, you have to remove the passenger seat, & pull up the carpet!)

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78 Fairmont 428 4 speed [email protected]
80 Fairmont 302 5 speed [email protected]
85 Mustang NHRA Stocker under construction, 302 5 speed

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kwazykat
Moderator

Posts: 4776
From: me??? what planet are YOU from!!?.... heh heh heh..... M&M member #92
Registered: Jun 99

posted 01-28-2002 07:34 AM     Click Here to See the Profile for kwazykat   Click Here to Email kwazykat     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by Ponygirl67:
...I have had such a totally mixed opinion on them.....

dang donna!

we didnt mean to confuse the issue... um.... but.... if yer buyin'
da beer ..... all of us will meet you
at beer-thirty!!!

wooooohoooooo....
par-tay at donnas place today!!
teeeeheeeeheeeeee

kk

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Ponygirl67
Gearhead

Posts: 259
From: Vancouver Island, Canada
Registered: Nov 2001

posted 01-28-2002 11:46 AM     Click Here to See the Profile for Ponygirl67   Click Here to Email Ponygirl67     Edit/Delete Message   Reply w/Quote
hehehe...ok the autolites and beer it is!!!! Thanks guys and grrrrls

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http://www.squeakie.stangnet.com
'67 Purple Mustang Coupe
Is it spring yet???

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SteveLaRiviere
Administrator

Posts: 20744
From: Saco, Maine USA
Registered: May 99

posted 01-28-2002 11:55 AM     Click Here to See the Profile for SteveLaRiviere   Click Here to Email SteveLaRiviere     Edit/Delete Message   Reply w/Quote
The next step would be to cure the sootiness. The plugs should come out nice and tan.

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'70 Mustang Mach 1 M code 351C 4V/FMX/3.25 open
'72 Mustang Sprint Coupe 351C 4V/FMX/4.30 Trac Lok
'94 F-150 XL 5.8L/E4OD/3.55 Limited Slip
'97 Probe GTS 2.5L DOHC

MCA Member # 47773

Of all the things I've lost, my mind is what I miss the most.

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Ponygirl67
Gearhead

Posts: 259
From: Vancouver Island, Canada
Registered: Nov 2001

posted 01-28-2002 01:28 PM     Click Here to See the Profile for Ponygirl67   Click Here to Email Ponygirl67     Edit/Delete Message   Reply w/Quote
Ya I will have to keep an eye on that, for all I know those plugs have been in the car for 10 years...no passed on info from the former owners. Will ask my mechanic buddy to check the carb when he is here.

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http://www.squeakie.stangnet.com
'67 Purple Mustang Coupe
Is it spring yet???

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AKBOSSMAN
Gearhead

Posts: 2362
From: WASILLA , AK USA M&M #743 MCA #40857
Registered: Oct 2000

posted 01-28-2002 02:37 PM     Click Here to See the Profile for AKBOSSMAN   Click Here to Email AKBOSSMAN     Edit/Delete Message   Reply w/Quote
I like BEER

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WAYNE CURTIS

70 GRABBER GREEN BOSS 302

01 Sangria Red Focus ZX3
03 Boss 302 (5.0) (waiting on order form)
92 SHELBY 4X4 (K-9 IDITAROD LEAD DOG)
My old '71Torino GT
"If your under control then your not going fast enough" Parnelli Jones

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Ked
Moderator

Posts: 6560
From: Don't Let Your Mind Wander....it's Far Too Small to Be Out There By Itself!
Registered: Jul 99

posted 01-28-2002 03:44 PM     Click Here to See the Profile for Ked   Click Here to Email Ked     Edit/Delete Message   Reply w/Quote
yummmmmmmmmmm....beer......

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