A couple of pipes tested but still feel the OS to give the best results
APlus pipe cheaper than OS pipe no change of performance but less decibel sound
Hipex pipe set med header felt good
Nova 2015 with OS header less runtime improved mid range

Collari I believe is running a massaged version of the R2101 - my motor.

Need help with an header for a 18tz modified engine and pipe. Also what is a good filter To run with it. Going in a natrix 748.

Really want to match that motor up with an ERCm small block pipe

Rody is working on the OS motors now too, offering up a massaged version of the R2101 with includes breaking in if you so desire.

I am not sure what ZAC project is doing with their verions of the R2101 given that they have worked over the 12XZ

APlus EFRA 2110 Tuned pipe set.

anyone know what the stock clearance is between button head and piston on the r2101

thanks

According to the "Destruction Sheet":
"The engine is installed with a 0.1mm thick and a 0.15mm thick gasket for 25% nitro fuel when it leaves the factory".

Thanks but was looking to see if anyone used solder to see the clearance inside

+1, Piqued my interest but perhaps some putty would be more pliable and cause less strain on the con rod. As they do with full size cylinder heads.

Whats the bearing sizes for this engine? Is Avid bearings a good replacement bearings?

Anyone?

The bearing size is as follows.

Rear: 14x25.4x6
Front: 7x19x6

I like to use Novarossi, OS, or Picco bearings in the engine.

Thanks Grinder.

I make a really mean version of this engine...really good gains on the dyno over stock !