Whats the fastest pipe for a scale with a CMB 67?

[Duck899]

Kind of a poll to see what others have found to be the best pipe for any scale hydro running a CMB 67 and at what length and altitude.....

AB 67 pipe at 12" at 2200'....?????

International products nitro pipe (not available)...???

CMB pipe...????

Parabolic...????

 

[SayMikey]

Ab 12 1/2 at 600 ft pulling a x457x3 tongueless 13 pound boat

 

[chris thornton]

Cmb pipe 12 in. @600 ft using a p250 14 lb boat

 

[jwo]

Muck at 10 1/4 w/ Prather 255. From about 200' to 1600' No change in pipe or Needle. 55% nitro in a 15lbs. hull.

 

[Bill Brandt]

Muck at 10 1/4 w/ Prather 255. From about 200' to 1600' No change in pipe or Needle. 55% nitro in a 15lbs. hull.

John,

No givy away trade secrets, lol.

Mikey, I WANT YOU...lol

Bill

 

[jwo]

Good one Bill, Hows the leg? It takes alot of other tuning to get a hull to run with that short of pipe and prop. There is more to it than just pipe and needle and prop.