Go .21 Engine Question
#1
Member
Thread Starter
Join Date: Apr 2006
Location: Roma, TX
Posts: 86
Likes: 0
Received 0 Likes
on
0 Posts
Go .21 Engine Question
I have the Go .21 5 ports engine, and so far it runs great. i just have a question about shims. i am running 30% nitro fuel, and i dont know if i should remove or add any shims. i took apart the engine and i notice that it has 2 copper shims from factory. should i remove one?
#2
Senior Member
Join Date: Jan 2007
Location: , PA
Posts: 5,382
Likes: 0
Received 0 Likes
on
0 Posts
RE: Go .21 Engine Question
No just leave them. If you were to run 20% then you could take a shim out to raise the compression but running 30% keep the 2 shims. Thats why they come with 2 shims so you can adjust with % of nitro.