I stopped by the hobby shop this afternoon and ask for 2 OS 8 glow plugs when i got home i found they had handed me OS a3 plugs. Whats the difference in the 2? Will the work as well as he 8s?

tfarmer, that depends upon what engine you are putting the a3 plug into, so can you enlighten us what engine you are using ?

evolution .46 trainer

tfarmer96,

The A3 is a hotter plug than the standard A8. I use both in my sport engines with great
success.

Andy

tfarmer96, The Evolution 46 should work OK with the A3 plug, If you are having a problem with them , then put in 5%nitro into the fuel , and it will work OK
Bill

Tfarmer,
I fly A3 plugs in all of my 2-stroke engines. Go ahead and use them, you won't have any problems with them at all.

Ken

Tfarmer, dont no if it matters, but the plug that came in my Twist RTF,
which has a evolution .46 is longer than either of the o.s plugs
by about a 16th of inch
manual calls for a hanger 9 super plug (han3011)
maybe the O.S LC3 plug would work better

The OS plugs will work just fine in that Evo 46. It's what I use in my evo .46...

The A3 will work perfectly well -- however, the A3 is also cheaper -- did you pay for #8's, or did you pay for A3's?

you just asked what I was about to ask... he asked the LHS person for #8's, what did he pay for? good question.

i ask for 8s and was charded 5.50 for the 3as.

have you called them up and asked them why they sold you something you didnt ask for? not saying that it wont work, but I hate it when someone "sells" you something you didnt ask for.

I think they overcharged you 3 bucks total. Tower charges 3.99 for the A3 and 5.49 for the #8.

Which hobby shop? I live in Garland so I'm curious.

Here's a good page to answer some glow plug questions.
http://www.maxxtraxxusa.com/Page.cfm?InfoID=3607