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Roadog
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« on: May 31, 2013, 07:19:05 PM » |
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Anyone use plugs other than OEM ? Iridium plugs, anyone try those ?
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R J
Member
Posts: 13380
DS-0009 ...... # 173
Des Moines, IA
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« Reply #1 on: May 31, 2013, 07:20:29 PM » |
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I've had the best luck with OEM's.
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44 Harley ServiCar   |
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salty1
Member
Posts: 2359
"Flyka"
Spokane, WA or Tucson, AZ
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« Reply #2 on: May 31, 2013, 08:13:35 PM » |
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I like OEMs. Iridiums work fine but expensive. I don't think they offer any real "percs" . FWIW
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My rides: 1998 GL1500C, 2000 GL 1500CF,2006 GL 1800 3A   |
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Cotton Mouth
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« Reply #3 on: May 31, 2013, 08:37:56 PM » |
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Have never used any other than oem, but have seen many problems in autos caused by using other than oem plugs.
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1999 I/S SOLD BUT NOT FORGOTTEN Jan 2015
1998 HD Road King Classic
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98valk
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« Reply #4 on: June 01, 2013, 04:04:51 AM » |
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I use Autolite #4164 which has a necked down center electrode. Then I round the corners and cut back the side electrode so that a 1/4 of the center electrode is exposed. gapped on the low range at .030. http://www.sparkplugs.com/product.aspx?zpid=7776 |
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1998 Std/Tourer, 2007 DR200SE, 1981 CB900C 10speed
1973 Duster 340 4-speed rare A/C, 2001 F250 4x4 7.3L, 6sp
"Our Constitution was made only for a Moral and Religious people. It is wholly inadequate to the goverment of any other."
John Adams 10/11/1798
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Garry 2r's
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« Reply #5 on: June 01, 2013, 04:11:40 AM » |
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Just replaced my Iridium plugs after over 30,000 miles and looked great and my bike always ran well and have gotten up to 42 mpg on trips just replaced them with the new E3 plugs but not made any trips to check mileage yet picked them up at advance auto on sale for 6 bucks each. http://www.e3sparkplugs.com/
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98valk
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« Reply #6 on: June 01, 2013, 08:00:52 AM » |
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E3 over priced. even video shows same amount of spark. a spark will always jump to the shortess easiest path. all based same as split fire on the time proven racers trick of cutting back the side electrode. suggested reading is Dr Jacobs org book on spark plugs and wires, even though its bias towards his products at the time, still some valuable technical info on plugs. and one wants to read info at www.magnacor.com |
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1998 Std/Tourer, 2007 DR200SE, 1981 CB900C 10speed
1973 Duster 340 4-speed rare A/C, 2001 F250 4x4 7.3L, 6sp
"Our Constitution was made only for a Moral and Religious people. It is wholly inadequate to the goverment of any other."
John Adams 10/11/1798
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Farther
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« Reply #7 on: June 01, 2013, 08:53:47 AM » |
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A follow up video on the E3's showed back to back dyno runs on a 400 hp street engine. The was a seven horse power gain with the E3's. I don't know if this is significant or within testing error on this dyno.
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Thanks,
~Farther
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98valk
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« Reply #8 on: June 01, 2013, 03:05:43 PM » |
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A follow up video on the E3's showed back to back dyno runs on a 400 hp street engine. The was a seven horse power gain with the E3's. I don't know if this is significant or within testing error on this dyno.
a knowledgable dyno operator can make one run look better than the other, little tricks of when the throttle is applied is one of them. a cut back side electrode will also provide more HP it is a drag racer trick for decades. |
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1998 Std/Tourer, 2007 DR200SE, 1981 CB900C 10speed
1973 Duster 340 4-speed rare A/C, 2001 F250 4x4 7.3L, 6sp
"Our Constitution was made only for a Moral and Religious people. It is wholly inadequate to the goverment of any other."
John Adams 10/11/1798
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Farther
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« Reply #9 on: June 01, 2013, 04:27:19 PM » |
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Ok, so what is the down side to the cut back side electrode? Seem that if it is so good that all plugs would come that way.
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Thanks,
~Farther
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Xtracho
Member
Posts: 1303
The Bosses
Florida's Emerald Coast
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« Reply #10 on: June 01, 2013, 04:35:01 PM » |
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Swapped out the stock plugs in my 'Wing for Iridiums and immediately picked up 2-4 mpg. depending on how I ride her. Cold starts are much easier also. But that's just me. Pulled the plugs on the Phat Gurl the other day and they look fine. When it's time to swap them I'll try the Iridiums in her as well.
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Mark
"To live you must be willing to die" - Amir Vahedi
My father gets smarter each day he is gone.
In the stable:
'84 GW Aspencade
'47 Indian Chief
'98 Valkyrie
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Rio Wil
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« Reply #11 on: June 01, 2013, 07:37:44 PM » |
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Anyone use plugs other than OEM ? Iridium plugs, anyone try those ?
Just run stock plugs, gapped at .032, for 100K miles, replace them with another set of stock plugs (from a auto store), run another 100K miles.....rinse and repeat for another 100K miles. Unless your engine has a issue that is fouling plugs, changing from the stock plugs is simply an exercise that has no discernible results. |
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98valk
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« Reply #12 on: June 01, 2013, 08:21:21 PM » |
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David Vizard.... http://www.musclemustangfastfords.com/tech/0207mmff_tech/Rounding off the end of the side electrode as shown here reduces the peak temperature seen by the electrode so moving away from the possibility of detonation from this source. Also, in the relatively swirl-free conditions that exist at low rpm, this form gets the charge burning more effectively. Be sure to cut the electrode so the end of the tip is no further than half way over the center electrode. If plug life is not an issue cut it so it is between a 1/5 and 1/3 of the way over the center electrode Read more: http://www.musclemustangfastfords.com/tech/0207mmff_tech/#ixzz2V1W9UXsI |
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1998 Std/Tourer, 2007 DR200SE, 1981 CB900C 10speed
1973 Duster 340 4-speed rare A/C, 2001 F250 4x4 7.3L, 6sp
"Our Constitution was made only for a Moral and Religious people. It is wholly inadequate to the goverment of any other."
John Adams 10/11/1798
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