gapping dual tip spark plugs

General discussion forum about the 240sx, and a great place to introduce yourself to the board!
User avatar
nismofly
Posts: 12505
Joined: Sat Sep 04, 2004 3:16 pm
Car: 89 Nissan 240SX Hatch

Post

just wondering got a set of bosch dual tip spark plugs and wondering how to gap them...like differences from single tip plugs

thanks everyone


TheOne
Posts: 1836
Joined: Mon Aug 09, 2004 4:28 pm
Car: 93 240sx FB
Location: Arlington, TX

Post

is it bosch platium plugs? i heard those will make your car hesitate and run like crap.

User avatar
nismofly
Posts: 12505
Joined: Sat Sep 04, 2004 3:16 pm
Car: 89 Nissan 240SX Hatch

Post

yeah...aw crap

napa was sold out of ngk

User avatar
AZhitman
Administrator
Posts: 54542
Joined: Mon Apr 29, 2002 2:04 am
Car: 58 L210, 63 Bluebird RHD, 64 NL320, 65 SPL310, 66 411 RHD, 67 WRL411, 68 510 SR20, 75 280Z RB25, 77 620 SR20, 79 B310, 90 Z32, 91 GTi-R, 92 Silvia Qs, 98 S14, 23 Z.
Location: Surprise, Arizona
Contact:

Post

Bleh.

Take them back.

Basic electrical knowledge will tell you that the number of tips is irrelevant, electricity follows the path of least resistance, which means it will fir in the same place every time for most of the life of the plug.

Also, steer clear of the "+4" crap out there - documented cases of electrodes coming apart - not a good place for this to happen.

User avatar
nismofly
Posts: 12505
Joined: Sat Sep 04, 2004 3:16 pm
Car: 89 Nissan 240SX Hatch

Post

well ive heard the multi tip thing wouldnt make it any better, but i didnt think it would be worse

will it be that bad? ill only have them for a short time, 9 months or so at most

574-240sx
Posts: 9432
Joined: Sun Dec 01, 2002 6:27 pm
Car: Nissans, Toyotas, Subaru

Post

Go to advance auto, autozone, or pepboys and pick up some NGks. If they don't have them in stock ask if any of their other local stores have them in stock.

User avatar
nismofly
Posts: 12505
Joined: Sat Sep 04, 2004 3:16 pm
Car: 89 Nissan 240SX Hatch

Post

well i was at napa and asked for ngk's and they were out of the ones i needed, so i said i guess the boschs would be ok...

User avatar
sparkplugs.com
Posts: 239
Joined: Mon Dec 13, 2004 11:13 am
Contact:

Post

from our website:"Some combustion chamber designs (such as a rotary motor) require that the spark plugs have the ground electrode placed to the side of the center electrode rather than below as on a traditional plug (see photo). This firing tip design tends to erode the tip of the ground electrode faster than a traditional plug, erosion at these points creates a larger gap between the center and ground electrodes causing plug misfire. Thus by having more ground electrodes you extend plug life. It is important to note that multi-ground does not mean multi-spark, there will still only be one spark at a time. Therefore a multi-ground plug will not perform any better and may actually perform worse than a traditional plug, unless the engine is designed for a multiple ground plug."

Its also not recommended to gap multi-ground plugs


Return to “240sx General Discussion”