rotzilla

been alot of talk about glow plugs lately so i thought it might post this i hope it helps....
http://osengines.com/accys/glow-plug-chart.gif
http://osengines.com/accys/choosing-glowplugs.html
#6
Hot
OSMG2690
A long-lasting plug for most .10-.60 2-strokes
P3
Ultra Hot
OSMG2699
For 21VZ-B V-Spec and most .18-.28 off-road racing Turbo head engines
P4
Super Hot
OSMG2697
For 21VZ-B V-Spec and most .18-.28 off-road racing Turbo head engines
P5
Very Hot
OSMG2711
For 21VZ-B V-Spec and most .18-.28 off-road racing Turbo head engines, especially when the temperature is high or for leaner needle settings and high-nitro/high-rpm running
LC3
Hot
OSMG2700
Long reach, for 1/10 scale off-road engines such as O.S. 21TMs and Traxxas® peak needle settings and punchy throttle response
#7
Medium Hot
OSMG2713
For 2-stroke airplane, helicopter and car (except Turbo head) engines. Offers stable idling, broad peak needle settings and punchy throttle response
RP6
Medium
OSMG2703
For most .12-.21 on-road racing Turbo head engines
LC4
Medium
OSMG2708
Long reach, for 1/10 scale off-road engines such as O.S. 21TMs and the Traxxas TRX2.5 & 3.3™ engines
#8
Medium
OSMG2691
A favorite for most 2-stroke engines
RP7
Cold
OSMG2704
For most .12-.21 on-road racing Turbo head engines
RP8
Cold
OSMG2698
Outlast the hottest heats with Turbo head engines
#10
Cold
OSMG2693
Ideal for aircraft engines .60-size and up
R5
Cold
OSMG2694
For leaner needle settings and high-nitro/high-rpm scale racing
F
4-Stroke
OSMG2692
Long reach and long life for 4-stroke engines

3-172IN MTN

Hey man that is some useful information that you posted there. If I used anything besides a OFN51007 or 51006 I would need to know this information.

I know someone with a new O.S. 28 that might be looking into some plug info becasuse the sender did not send a book with the motor.

BudBud

OS P4 is what I am going to try on my new OS28ZX. The chart though, is for OS engines. Going by that, you should run a hot plug in your Axial/K4.6/K5.9 and I tried that with poor results. The cold plug on those engines, prior to modification, gave me the best performance. Other than the OS30VG, which they do not even bother to mention in that chart, most OS engines have pretty aggressive timing. Oh well, off to fix a Savage, it seems to be rear wheel drive only. I blew out my final front CVD. Back to bones!

pitbull14218

I thought i read somewhere that Big Blocks should use a colder plug, but i really dont know. I think i have a hot or medium in my Mach 427. But i too am also out to fix some type of drivetrain problem i have from the power of that motor

rotzilla

i use an o.s.#8 its been good so far. i have an odonnells to try and i picked up a o.s, a3 cold plug to try off a recommendation from glen to earl. what to hell its worth a try, but man there not cheap can buy 2 8's for 1 3....