- Joined
- Oct 24, 2002
- Messages
- 4,510
Got a new boater that wants to go faster.
Anyone messing with the dynamite .15 motor? What head clearance can you run? One I checked with a .008 shim had .019 head clearance. Can you run these tighter? can you use higher than 20% nitro fuel? What about any exhaust port timming mods?
What is a better tuned pipe?
Ordered a new Grim racer turn fin for the boat Had to redrill the mount so we could align the fin 90 degrees to the table or it would be bent out way too far. the angled sponson back made the mount sit at an angle like the stock one but you cant run the grim fin that way. It should be at 90 degrees.
Anyone messing with the dynamite .15 motor? What head clearance can you run? One I checked with a .008 shim had .019 head clearance. Can you run these tighter? can you use higher than 20% nitro fuel? What about any exhaust port timming mods?
What is a better tuned pipe?
Ordered a new Grim racer turn fin for the boat Had to redrill the mount so we could align the fin 90 degrees to the table or it would be bent out way too far. the angled sponson back made the mount sit at an angle like the stock one but you cant run the grim fin that way. It should be at 90 degrees.
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