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Re: NGK Plugs ?
[Re: dennismopar73]
#944342
03/06/11 11:22 PM
03/06/11 11:22 PM
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Joined: Oct 2004
Posts: 1,752
detroit area
moderncylinder
top fuel
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top fuel
Joined: Oct 2004
Posts: 1,752
detroit area
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are you saying there is no truth to my statement? thats just my experience,, ive done it a few times on my dyno and its always worth power
in a ss hemi gained 10
in a ss 427 chevy gained 10
in a pump gas small chevy gained 6
in a 480 cubic inch fe pump gas was worth 8
in a 505 bb mopar pump gas was worth 6
all average power numbers which is all i ever look at
so i built a small blk ford motor for a guy local who works for the prince of quatar(alanabi guy),, so he is hooked up with shannon jenkins from some nitrous company,, i told my customer to run autolite plugs but they didnt cause they later told me i didnt tell them a part number,,, so they ran ngk,, so they went down south and shannon told them to go to the store and get some autolite plugs cause they make more power than ngk plugs,,, so they did cause they were told to by two totaly different sources. its a 360 cubic inch 8.2 deck ford with tfs heads in a 2900lb car, clutchless 5 spd,, nitrous,, been 7.80's at 180something
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Re: NGK Plugs ?
[Re: moderncylinder]
#944343
03/07/11 04:01 AM
03/07/11 04:01 AM
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Joined: Jan 2003
Posts: 5,486
SoCal
Brian Hafliger
master
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master
Joined: Jan 2003
Posts: 5,486
SoCal
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Quote:
are you saying there is no truth to my statement? thats just my experience,, ive done it a few times on my dyno and its always worth power
in a ss hemi gained 10
in a ss 427 chevy gained 10
in a pump gas small chevy gained 6
in a 480 cubic inch fe pump gas was worth 8
in a 505 bb mopar pump gas was worth 6
all average power numbers which is all i ever look at
so i built a small blk ford motor for a guy local who works for the prince of quatar(alanabi guy),, so he is hooked up with shannon jenkins from some nitrous company,, i told my customer to run autolite plugs but they didnt cause they later told me i didnt tell them a part number,,, so they ran ngk,, so they went down south and shannon told them to go to the store and get some autolite plugs cause they make more power than ngk plugs,,, so they did cause they were told to by two totaly different sources. its a 360 cubic inch 8.2 deck ford with tfs heads in a 2900lb car, clutchless 5 spd,, nitrous,, been 7.80's at 180something
And that is why we test folks!
Brian Hafliger
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Re: NGK Plugs ?
[Re: Brian Hafliger]
#944344
03/07/11 09:24 AM
03/07/11 09:24 AM
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Joined: Jun 2009
Posts: 877
ky
68roadrunner
super stock
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super stock
Joined: Jun 2009
Posts: 877
ky
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Quote:
Quote:
are you saying there is no truth to my statement? thats just my experience,, ive done it a few times on my dyno and its always worth power
in a ss hemi gained 10
in a ss 427 chevy gained 10
in a pump gas small chevy gained 6
in a 480 cubic inch fe pump gas was worth 8
in a 505 bb mopar pump gas was worth 6
all average power numbers which is all i ever look at
so i built a small blk ford motor for a guy local who works for the prince of quatar(alanabi guy),, so he is hooked up with shannon jenkins from some nitrous company,, i told my customer to run autolite plugs but they didnt cause they later told me i didnt tell them a part number,,, so they ran ngk,, so they went down south and shannon told them to go to the store and get some autolite plugs cause they make more power than ngk plugs,,, so they did cause they were told to by two totaly different sources. its a 360 cubic inch 8.2 deck ford with tfs heads in a 2900lb car, clutchless 5 spd,, nitrous,, been 7.80's at 180something
And that is why we test folks!
and we appreciate the testing and information that everybody brings here. 
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Re: NGK Plugs ?
[Re: moderncylinder]
#944345
03/07/11 12:10 PM
03/07/11 12:10 PM
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Joined: Nov 2009
Posts: 2,177
ill
dennismopar73
top fuel
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top fuel
Joined: Nov 2009
Posts: 2,177
ill
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i will believe that there might be a minisque diff in some plugs
as in heat range tips lenghts , ets but to come make bold statements
that this plug will make more hp than the same equivalent plug from diffrent plug manufacture , is totally without merit ,
now if youre testing a totaly diffrent plug vs a racing style plug
with diffrent heat range , then i will believe some of youre statement!
other than that, show me dyno results with no other changes than
that of a plug change, using the same indexing , timing, etc
just a plug change thats all ,, lets see the results!!
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Re: NGK Plugs ?
[Re: BLONDE BARRACUDA]
#944347
03/07/11 12:27 PM
03/07/11 12:27 PM
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Joined: Sep 2004
Posts: 6,906
IL, Aurora
ademon
master
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master
Joined: Sep 2004
Posts: 6,906
IL, Aurora
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Quote:
I have a hard time believing this to but hopefully he's right that will be the cheapest horspower I have made in a while
Horse power TV always makes that type of power increase with the plug of the month 
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Re: NGK Plugs ?
[Re: mopar65]
#944349
03/07/11 01:47 PM
03/07/11 01:47 PM
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Joined: Jan 2003
Posts: 21,076
Niles , Ohio
therocks
oh wait.but hey.lets see.oh yeah.
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oh wait.but hey.lets see.oh yeah.
Joined: Jan 2003
Posts: 21,076
Niles , Ohio
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12.5 Stealth headed 440 I run NGK R5671A-8.My kids price at Advanced was about 14 bucks for 8.Great plug.Car runs better than when I ran the Autolites.Rocky
Chrysler Firepower
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Re: NGK Plugs ?
[Re: therocks]
#944350
03/07/11 04:27 PM
03/07/11 04:27 PM
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Joined: Jan 2003
Posts: 4,616
Kissimmee Fl.
dusturbd340W5
master
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master
Joined: Jan 2003
Posts: 4,616
Kissimmee Fl.
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I have ran both the AR 3911 and the NGK 7173 both extended tip only change was plug in my case car ran same et but with the AR 3911 I gained 1 mph and the car idles much better this was back to back test same day 30 minutes apart.
70 duster full chassis super pro 416 CNC Indybrock heads 727 w/brake
best so far 1.212 60 6.219 in 1/8 at 110.88 9.768 at 137.81 1/4
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Re: NGK Plugs ?
[Re: dusturbd340W5]
#944351
03/07/11 04:48 PM
03/07/11 04:48 PM
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Joined: Sep 2004
Posts: 6,906
IL, Aurora
ademon
master
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master
Joined: Sep 2004
Posts: 6,906
IL, Aurora
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Quote:
I have ran both the AR 3911 and the NGK 7173 both extended tip only change was plug in my case car ran same et but with the AR 3911 I gained 1 mph and the car idles much better this was back to back test same day 30 minutes apart.
This was replacing and old set with new AR's & new NGK's? or were you replacing the NGK's with AR's?
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Re: NGK Plugs ?
[Re: dusturbd340W5]
#944352
03/07/11 05:07 PM
03/07/11 05:07 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
I have ran both the AR 3911 and the NGK 7173 both extended tip only change was plug in my case car ran same et but with the AR 3911 I gained 1 mph and the car idles much better this was back to back test same day 30 minutes apart.
Woody... whats the compression on your engine... was
that with the W-5s
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Re: NGK Plugs ?
[Re: moderncylinder]
#944355
03/07/11 06:58 PM
03/07/11 06:58 PM
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Joined: Oct 2005
Posts: 976
ontario canada
mac56
super stock
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super stock
Joined: Oct 2005
Posts: 976
ontario canada
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Quote:
it works for me,,, i have my own dyno,, it repeats.... party on guys
Thanks for the info Jeff. 
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Re: NGK Plugs ?
[Re: dusturbd340W5]
#944357
03/07/11 07:39 PM
03/07/11 07:39 PM
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Joined: Feb 2004
Posts: 6,257
acworth / N. georgia - south e...
cheapstreetdustr
master
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master
Joined: Feb 2004
Posts: 6,257
acworth / N. georgia - south e...
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i have bbeen running the NGK R5671A-9's for yrs..
if Jeff says they are worth an improvement..thats good enough for me..
i agree the chrome/nickle base is easier to read then the black phosfate.
i think they have a nickle version fwiw...i just dont know the part number..
what # Autolite plug is a direct cross match from the NGK R5671A-9 plug?
365" Iron J heads,,3480lbs best 1.39 60ft on SS springs.10.54,124 mph ...6.67 1/8th et.average 60fts 1.46 w/ small cam &.063 no2 pill tagged & insured
[image][/image]
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Re: NGK Plugs ?
[Re: dusturbd340W5]
#944358
03/07/11 07:47 PM
03/07/11 07:47 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Quote:
Quote:
I have ran both the AR 3911 and the NGK 7173 both extended tip only change was plug in my case car ran same et but with the AR 3911 I gained 1 mph and the car idles much better this was back to back test same day 30 minutes apart.
Woody... whats the compression on your engine... was
that with the W-5s
no this was with the Indybrocks with the motor at 12.5-1 and that was install brand new NGK's made 1 pass then installed brand new AR 3911.
The test was done because my machinist swears by the Ar's
I'm trying to figure out what plug to run in my W-5s
for my drag week car, 11:1 ... I've been using Champion
race plugs for my W-9 but they are pretty pricey
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