| Author | Message | ||
     Swordsman |
Does anyone know if Bosch makes a Platinum +4 plug that will work with the XB's? I'm not having any luck finding technical info on them. thanks, ~SM | ||
| Trac95ker |
I'd like to know also. I haven't had any luck either. | ||
| Lorazepam |
The plus 4 plug is a gimmick just like the splitfire plugs. Electricity follows the path of least resistance, and makes just one spark, not 4 like bosch would like you to believe. | ||
| Swordsman |
Yes, but if all paths are equal, it would spark all the way around. Like one of those plasma globes... it's doing the exact same thing. Since the glass sphere is equidistant from the electrode at it's center, it arcs to multiple points along the globe. If you offer it a better single path (your finger), sure, it'll choose that path over the others. Also, I would imagine that if the voltage was high enough (no idea what numbers would be relevant), and there were multiple outlets for it to traverse, the electricity would follow as many as possible, like a waterhose full of holes. The open end will definitely release the most water, but you'll be getting some squirts out the sides as well. I'm not saying it DOES work, I'm saying that it's quite possible, theoretically. Never poked my head in the chamber to see for myself...  I'm not looking for more power or anything, I just want my combustion to be as efficient as possible... trying to fix a random engine "hiccup" that many have related to spark plugs. ~SM | ||
| Bob_thompson |
Just some food for thought. This (pictured) is a trick we used to do when all these fancy plugs were not available. Its a regular plug, any brand and any heat range. We called it clipping the plugs. It originated from racers with very high compression ratios in race engines. It puts the spark flame out from under the electrode and in the open for faster flame travel, propagation and more complete combustion. You want sharp edges on both anode and electrode to allow best and easiest spark transmission. Maybe not needed in all circumstances but when things get iffy they really do help and best of all they are inexpensive and something I do myself.  | ||
| Trac95ker |
Thats a pretty neat trick. I was mainly interested in the spark going the path of least resistance. The prong that just arced should be hotter than the rest. Next spark should go to a cooler prong, and so on. | ||
| Swordsman |
Bob, doesn't that trick cause problems with setting the gap properly? Looks like a mighty hefty breach you've got there... don't think they make a gapper big enough to even measure it.  ~SM | ||
| Bob_thompson |
Swordsman, I may have taken the picture before precisely gapping it but with a flat feeler guage I go with exactly .032 thousanths inch between the two sharp points. A little closer than factory but that also guarantees me a spark should the coil get hot and deplenish the voltage from high resistance. I also replace when the sharp points get rounded but they last many thousands of miles before that happends. | ||
| Cmm213 |
I run the denso iridium ones that daves sells- almost impossible to foul! | ||
| Cyclonecharlie |
Bob, Good piece of knowledge, we would do just that when we had a race bike(dirt track) going thru alot of plugs. Was usually a sign of a magneto going or ign. coil. Good stuff..........Charlie | ||
| Rocketman |
Whatever a fancy spark plug might do, it won't give you anymore power. That's a fact. What they will do is cost you more money. My advice is use an NGK that's recommended by Buell. You will not do better in your engine, in your pocket and for reliability. Rocket | ||
| Djkaplan |
I used to side-gap and index the sparkplugs in my car, chasing down those last elusive 100ths of a second at the dragstrip. Can't do it with platinum plugs, but that's probably a good thing. | ||
| Ctyxrnr |
i just installed the Iridium tipped NGK's last Fri. love them!! actually got 5mph more top end than before. not typing actual speeds since i will get bashed. |
