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need advice from any iron head racers #305353 05/02/09 10:25 AM 05/02/09 10:25 AM
Joined: Oct 2007 Posts: 846 Illinois moparmattkos OP mopar addict
moparmattkos OP mopar addict Joined: Oct 2007 Posts: 846 Illinois	I am lookin to see what plug you guys run in closed chamber iron 915 heads for racing. I dont think the rj12 will do the trick for what i want. I will spray a 150 shot on this sometimes also but id like to know some plug recomendations for both . Thanks for your help guys!! www.sikosracing.net Heads up Drag racing

Re: need advice from any iron head racers [Re: moparmattkos] #305354 05/02/09 10:48 AM 05/02/09 10:48 AM
Joined: Jul 2005 Posts: 8,647 ELYRIA,OH B blownzoom440
blownzoom440 B Joined: Jul 2005 Posts: 8,647 ELYRIA,OH	i am using an NGK #8.i can get the stock # to order later.sorry. edit: thye stock # is 3354 part # R5670-8 for my 346 heads. Last edited by METAL STORM; 05/02/09 11:09 AM.

Re: need advice from any iron head racers [Re: blownzoom440] #305355 05/02/09 04:37 PM 05/02/09 04:37 PM
Joined: Oct 2007 Posts: 846 Illinois moparmattkos OP mopar addict
moparmattkos OP mopar addict Joined: Oct 2007 Posts: 846 Illinois	Quote: i am using an NGK #8.i can get the stock # to order later.sorry. edit: thye stock # is 3354 part # R5670-8 for my 346 heads. What is your combo? Nos , blower , or N/a?? www.sikosracing.net Heads up Drag racing

Re: need advice from any iron head racers [Re: moparmattkos] #305356 05/02/09 04:47 PM 05/02/09 04:47 PM
Joined: Jul 2005 Posts: 8,647 ELYRIA,OH B blownzoom440
blownzoom440 B Joined: Jul 2005 Posts: 8,647 ELYRIA,OH	boosted,about 15.5to1cr total,sunoco 110,7AL-2 pro coil,firecore 50 wires.30* timing.

Re: need advice from any iron head racers [Re: blownzoom440] #305357 05/02/09 07:38 PM 05/02/09 07:38 PM
Joined: Jul 2008 Posts: 51 Cumberland, MD S Supersonic member
Supersonic member S Joined: Jul 2008 Posts: 51 Cumberland, MD	I run auto lite 75 in mine. it has shaved and ported 915 heads and runs 10.30's. I have 24 runs on this motor without changing any of the plugs yet, they seem to do the job. I know a lot of people hate auto lite's but i've always had good luck with them so i've never changed.

Re: need advice from any iron head racers [Re: moparmattkos] #305358 05/02/09 10:35 PM 05/02/09 10:35 PM
Joined: Aug 2003 Posts: 43,127 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,127 Bend,OR USA	Try a Autolite AR73 or AR72, or a Champion J63Y or J6YC and or Accel 132 Last edited by Cab_Burge; 05/02/09 10:36 PM. Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

Re: need advice from any iron head racers [Re: Cab_Burge] #305359 05/02/09 11:03 PM 05/02/09 11:03 PM
Joined: Feb 2007 Posts: 206 indy E eds dart enthusiast
eds dart enthusiast E Joined: Feb 2007 Posts: 206 indy	I,ve been using Accel 134 for a couple of years now. 906,s 14 to 1 alcohol. Never had any issues.

Re: need advice from any iron head racers [Re: moparmattkos] #305360 05/03/09 08:21 AM 05/03/09 08:21 AM
Joined: Jan 2003 Posts: 3,059 Swamps of South Jersey. W wildcargo master
wildcargo master W Joined: Jan 2003 Posts: 3,059 Swamps of South Jersey.	When the motor had 915s on it we ran AR73 gaped at .035.I like the cut back electrode on the AR plugs I think there is less chance of detonation with that style plug. Bud www.wildcar-go.itgo.com 64 DODGE 60' 1.433, 1/8 6.38 at 107.4, 1/4 10.08 at 132.02 foot brake, leaf springs

Re: need advice from any iron head racers [Re: wildcargo] #305361 05/03/09 11:31 PM 05/03/09 11:31 PM
Joined: Oct 2007 Posts: 846 Illinois moparmattkos OP mopar addict
moparmattkos OP mopar addict Joined: Oct 2007 Posts: 846 Illinois	I went to the local parts store and they crossed over the ar73 to autolite 85's will these work ok? www.sikosracing.net Heads up Drag racing

Re: need advice from any iron head racers [Re: moparmattkos] #305362 05/03/09 11:44 PM 05/03/09 11:44 PM
Joined: Aug 2003 Posts: 43,127 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,127 Bend,OR USA	Quote: I went to the local parts store and they crossed over the ar73 to autolite 85's will these work ok? Absolutely not, a 85 is a resistor plug that has the same heat range as the non resistor Autolite # 75 A 83 is the same heat range as a 73 Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

Re: need advice from any iron head racers [Re: moparmattkos] #305363 05/04/09 12:17 AM 05/04/09 12:17 AM
Joined: Mar 2008 Posts: 883 Affton MO Q qwkmopardan super stock
qwkmopardan super stock Q Joined: Mar 2008 Posts: 883 Affton MO	Champion H8C. Should be easy to get. Oreilly Auto Parts stocks them. That is what I run in Iron head big blocks. Got them in the Lebaron right now with 915 heads. Dan

Re: need advice from any iron head racers [Re: qwkmopardan] #305364 05/05/09 12:25 AM 05/05/09 12:25 AM
Joined: Oct 2007 Posts: 846 Illinois moparmattkos OP mopar addict
moparmattkos OP mopar addict Joined: Oct 2007 Posts: 846 Illinois	Quote: Champion H8C. Should be easy to get. Oreilly Auto Parts stocks them. That is what I run in Iron head big blocks. Got them in the Lebaron right now with 915 heads. Dan I went to all the local parts stores no one keeps this plug either. They told me that c this plug crosses over to a autolite 216???? Dan is your motor n/a or a power adder? will these work and what about a little 175 shot on it???

Re: need advice from any iron head racers [Re: moparmattkos] #305365 05/05/09 09:23 AM 05/05/09 09:23 AM
Joined: Oct 2007 Posts: 846 Illinois moparmattkos OP mopar addict
moparmattkos OP mopar addict Joined: Oct 2007 Posts: 846 Illinois	www.sikosracing.net Heads up Drag racing

Re: need advice from any iron head racers [Re: moparmattkos] #305366 05/05/09 09:36 AM 05/05/09 09:36 AM
Joined: May 2004 Posts: 1,151 Las Vegas A afxcoronet super stock
afxcoronet super stock A Joined: May 2004 Posts: 1,151 Las Vegas	We run the NGK 5670-9 on our Alky Injected 14-1, Iron headed 440, Use PN 3913 to order through O'Reilly's. Taking over the World one win light at a time.

Re: need advice from any iron head racers [Re: afxcoronet] #305367 08/15/09 01:00 PM 08/15/09 01:00 PM
Joined: Oct 2007 Posts: 846 Illinois moparmattkos OP mopar addict
moparmattkos OP mopar addict Joined: Oct 2007 Posts: 846 Illinois	More info The motor is a 451 stroker about 11 to 1 with a 590 cam 915 heads and a 4500 converter in a 3000lb car with a very occasinal 150 shot of nos. www.sikosracing.net Heads up Drag racing

Re: need advice from any iron head racers [Re: moparmattkos] #305368 08/15/09 01:21 PM 08/15/09 01:21 PM
Joined: Aug 2006 Posts: 1,613 Deerfield, Ohio 70dusterjohn top fuel
70dusterjohn top fuel Joined: Aug 2006 Posts: 1,613 Deerfield, Ohio	We ran Auto lite 74s in both the 915 and the Max wedge heads. We did use a 150 shot on my buddies 440 with 915s and using the 74s.. I think that they changed the number on it but they can cross it for ya.. oh his is a 496... 12.5 comp soild mop cam 590 lift single carb 1050 dom. Hope this helps ya.

Re: need advice from any iron head racers [Re: 70dusterjohn] #305369 08/16/09 03:39 PM 08/16/09 03:39 PM
Joined: Oct 2007 Posts: 846 Illinois moparmattkos OP mopar addict
moparmattkos OP mopar addict Joined: Oct 2007 Posts: 846 Illinois	Are those ar74's or just the 74's?? www.sikosracing.net Heads up Drag racing

Re: need advice from any iron head racers [Re: moparmattkos] #305370 08/16/09 03:59 PM 08/16/09 03:59 PM
Joined: Jan 2003 Posts: 2,296 NE Ohio DoubleD top fuel
DoubleD top fuel Joined: Jan 2003 Posts: 2,296 NE Ohio	Used to run autolite 75 or 74 in a 915 headed 511 ran 9.80's in a 3200 lb car - they were cheap and worked - I did try the 85 and 84's never really noticed any difference using a MSD 6Al - the resistence in the plug is negligable.

Re: need advice from any iron head racers [Re: blownzoom440] #305371 08/17/09 12:02 AM 08/17/09 12:02 AM
Joined: Nov 2004 Posts: 2,825 Sk. Canada RemCharger master
RemCharger master Joined: Nov 2004 Posts: 2,825 Sk. Canada	Quote: i am using an NGK #8.i can get the stock # to order later.sorry. edit: thye stock # is 3354 part # R5670-8 for my 346 heads. These are the plugs you need . Or the -7s,,, If you can wait since may, you can wait to order them?

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