| Author | Message | ||
     Fullpower  |
I am getting conflicting application data for iridium spark plugs in Buell XB series. the stock spark plug (10R12) is dead on for heat range, would like to duplicate its heat range in an Iridium plug. it is variously crossed to IXU22.IXU24,IXU27, KR8AI. and several others. so who has the correct cross reference? the spark plug manufacturers charts have not caught up with the 2004 model year yet, so do not list the XB12. the ones listing the xb9 are in conflict. thanks for the help. and have a good thanksgiving all, regards, dean | ||
| Fullpower |
update: direct from Denso site, for 2003 XB9R they recommend the IXU24. is anyone here running this exact spark plug- that is IXU24 ?? status report please. thanks. dean | ||
| Xbolt12 |
See my other post "spark plugs" xbolt12 | ||
| Dcmortalcoil |
Yes, I'm currently using Denso IXU24. Ridden for about 4000 miles with no problem. I have inspected and it appears to be running slighly hot - that was before Techlusion. I am going to try IXU27 (it should arrive next week) if my IXU24 still looks running hot (about 1000 miles on with Techlusion). | ||
| Ezblast  |
DCPR8EVX is what IXU24 corresponds to in NGK - a hotter plug - just one step hotter - shouldn't be too bad, the NGK equivalent for the IXU27 is both DCPR9EVX and BL6H - which makes me wonder just how hot that plug is - wierd - I was running the old equivalent to the 6R12 - very hot - lol - IX27B will cross reference back to a 10R12 through the NGK equivalent DPR9EA-9, however the racing class plug IXU01-27 is still considered too hot for the street - see its specks to see why - and one of the priciest plugs out there. GT - JBOTDS! EZ  (Message edited by ezblast on November 25, 2004) | ||
| Fullpower |
the more information i gather, the less i know. | ||
| Fullpower |
in reference to the IXU24, the I means Iridium center electrode, XU refers to a 12mm thread, 3/4" reach, gasket seat with 5/8" hex wrench size. the heat range 24 is equivalent to the NGK "8" range, and the IXU24 also crosses to the champion RA6HC. this is the plug recommended on the denso website for the xb9. still, with a cross ref to an ngk 8 heat range, it makes me wonder if this is too hot for the XB. confused. | ||
| Xbolt12 |
I am trying the NGK 9's. No worries as this is a cooler heat range plug and the worst that can happen is plug fouling if it's too cold a heat range. I seriously doubt I'll have a problem though. xbolt12 | ||
| Fullpower |
talked to a Denso technician. the direct cross ref for the 10R12A is IXU24. | ||
| Ezblast |
and that is incorrect - to hot - references back to the 6R12 heat range if you do a reverse search on their site - lol GT - JBOTDS! EZ | ||
| Xbolt12 |
After reading the Buell technical bulletin recommending switching from 6r12's to 10r12a's, I noticed it said Sportsters still use the 6r12. So... I went back to the NGK website and verified that they recommend a 7 heat range plug on all Sportsters and and 8 heat range for all Buells. This leads me to believe that for NGK an 8 heat range plug is in fact the correct new heat range that coincides with the hd 10r12a plug. Still I am personally going to run the cooler NGK DCPR9EIX as a precaution against detonation since I flog my bike and it has some mods (intake,fuel,exhaust). xbolt12 |
