Axial .28RR

[flm_savage]

Well i have heard alot of great and not so great things about this motor. I broke it in via the heat cycle method and its starting to come alive. Basically i tune by performance and smoke trail. If i run it at 240-250, its got no power at all. Rarely hits peak rpm. So now i leaned it out and i am pushing 280-300 but its got a full smoke trail and lotsa power. I am gonna run it like this and hopefully i get a full life out of it. If not, an OS .30 will replace it.

Basically its a strong motor but runs hot and only time will tell if it lasts.

 

[Scrogg]

Cold plugs, 30% fuel with low oil will cool it down. It did wonders for my Axial, all my BB engines actually. Mine was the same way...280 was where it would perform. It ran great with the above changes around 230-240F.

 

[flm_savage]

running odonell 30% with an LC4 plug

 

[Scrogg]

LC4 as in an O.S. plug? Too hot. Try a MC-8 or the Axial #4.

 

[flm_savage]

its a medium plug. i'll grab some cooler ones to try them out

 

[frickenjoey]

I run OS A5 with 30% in all my BBs and they do great. My Axial would pre-detonate and end up running backwards with a medium plug running 30%.

 

[flm_savage]

they said the A5 wasn't long enough
i have some here i guess i could try

 

[Scrogg]

There is no industry standard for plug temps...I just know from experience that the LC4 is a hotter plug than the others. The Axial #4 plugs are very durable as well. They hold up to race tune settings much better than McCoy or O.S. plugs.