Cheap Allow Class "A" Namba

[ALLAN YUEN]

:unsure: I heard that Someone use NovaRossi .21 change fit into .25 piston/ sleeve it is more powerful than .21 for Hydro or Outboard Is it illeage or permit???? Because cant see in engine???

 

[Ron Olson]

Yes, that would be illegal. A lot of the R/C Monster trucks are coming out with .24's that are made in .21 cases. The K&B 7.5 engine will take the airplane version .48 piston and sleeve. It's a wonder that somebody hasn't done this but I wouldn't doubt it. There isn't any Tech inspection at races unless someone files a protest and that rarely happens but now they'll be keeping an eye on you!

 

[Mike Hughes]

This is the hot set up for the C mod tunnel. Take you B mod and run the higher displacement to be in the motor range. The B mods are typically faster than a 67 sized tunnel. I believe Nelson also make a P/S that fits their 45 motor.

Mike

 

[TimD]

We had a tech inspection on 67 inboard engines at our nat's as some of the new 80's look identical to the 67's.

 

[ALLAN YUEN]

Big Problem: Tech inspection never check any engines at Race or Nats . The size .67 as same .80 case .Example: Picco EXR 67 between Picco EXR.80, CMB .67 HR betwwen CMB.80 HR, MAC.67 between MAC.84 and K-.67 between K-.82