Pipe for .91 VAC

[Glenn Gates]

What's the best pipes for the .91 Vac in a Mono???

Thanks,

Glenn

 

[FloridaScaleBoater]

What's the best pipes for the .91 Vac in a Mono???

Thanks,

Glenn

CMB's version of the AB 67 muffled pipe, Al Hobbs also sells a version of the pipe

 

[Glenn Gates]

What's the best pipes for the .91 Vac in a Mono???

Thanks,

Glenn

CMB's version of the AB 67 muffled pipe, Al Hobbs also sells a version of the pipe

Thanks Rick, Got a couple AB pipes-somewhere :huh: .

 

[dwilfong]

MAC 1385 13cc pipe will pull more prop in a mono. It also Rev's real nice.

Tried both pipes and the macs hands down will pull a bigger prop in a heavy boat.

David

 

[Glenn Gates]

MAC 1385 13cc pipe will pull more prop in a mono. It also Rev's real nice.

Tried both pipes and the macs hands down will pull a bigger prop in a heavy boat.

David

Thanks David, What kind of prop are you pulling@ sea level??Glenn

 

[dwilfong]

ABC 2614/3 chopper.

 

[Michael Costanzo]

MAC 1385 13cc pipe will pull more prop in a mono. It also Rev's real nice.

Tried both pipes and the macs hands down will pull a bigger prop in a heavy boat.

David

Thanks David, What kind of prop are you pulling@ sea level??Glenn

hi glen,the a/b pipe makes crazy rpm's but like dave said,we put a 13cc pipe on it and pulled a 2614/3 no sweat!

 

[ALLAN YUEN]

Best one use AA84/90 Sliver Parabolic pipe drilled open into stinger and new CMB header 22 mm O.D small bore than 25mm big bore wont fit tapped to pipe

 

[Glenn Gates]

MAC 1385 13cc pipe will pull more prop in a mono. It also Rev's real nice.

Tried both pipes and the macs hands down will pull a bigger prop in a heavy boat.

David

Thanks David, What kind of prop are you pulling@ sea level??Glenn

hi glen,the a/b pipe makes crazy rpm's but like dave said,we put a 13cc pipe on it and pulled a 2614/3 no sweat!

Thanks Mike and Alan, Anyone tried the 15cc Macs??

 

[Michael Costanzo]

MAC 1385 13cc pipe will pull more prop in a mono. It also Rev's real nice.

Tried both pipes and the macs hands down will pull a bigger prop in a heavy boat.

David

Thanks David, What kind of prop are you pulling@ sea level??Glenn

hi glen,the a/b pipe makes crazy rpm's but like dave said,we put a 13cc pipe on it and pulled a 2614/3 no sweat!

Thanks Mike and Alan, Anyone tried the 15cc Macs??

waiting on some props from mark s.and then i am going to try a 15cc pipe.i will let you know.mike.

 

[Glenn Gates]

Thanks Mike, Let me know how it works. Appreciate the help everyone.

Glenn

 

[Joe Warren]

VAC 91 DOES Not need a lot of pipe Volume. it breaths very good on the intake side.

 

[Glenn Gates]

VAC 91 DOES Not need a lot of pipe Volume. it breaths very good on the intake side.

Thanks Joe, I can try a couple smaller volume pipes first(AB 67/80 quiet and Irwin quiet) but it might be a moot point as I just read the Utah club(gas sniffers) do not want to mix the nitro and gas classes anymore and theres no X mono in Nor Cal. I think this is the second or third boat I've built that was obsolete before it got wet.

Thanks,

Glenn

 

[Joe Warren]

Glenn we race together here in a Umlimited Class & Open classes. Todays Big Block CMB`s can Easily out run a Modified Z engine or Quickdraw. Maybe why they dont want to play anymore??????? It is about having Fun anyways.......

 

[Glenn Gates]

Glenn we race together here in a Umlimited Class & Open classes. Todays Big Block CMB`s can Easily out run a Modified Z engine or Quickdraw. Maybe why they dont want to play anymore??????? It is about having Fun anyways.......

id say thats why

Got in touch with the Club Prez in UT it's going to a vote but no 3rd ch needle control- it might happen. All the guys are leaning to OPEN classes which would include gassers to ??? CC's any fuel.