Originally Posted by
asaraneta
How about the choice of pipes? I have the stock pipe that comes with the engines? Our track has a loose surface (sands), very bumpy, 70% technical (curves) and 30% straights.
The EFRA 2072 that comes with the GX motors is the best pipe for these motors as far as overall performance. IMO
Check out the GO USA thread. We were just discussing pipes on there over the last page or so.
The GX motors were designed to work with the 2072, so that is what I would use. As far as track conditions go, just change clutch and venturi, maybe clutch bell gearing as well to get the smoothness you want on the loose surface