What pipe for Nova .21DD

[vision race boats]

Just wondering what pipe you guys have found to work the best with a Nova .21DD that is available for heat racing, I am now running a CMB nitro pipe at 7 7/8 with decent results but would like to hear what has been found to work best with that engine. Thanks for the help.

 

[Marty Davis]

I ran the pipe that Brian Buaas builds that I designed for him (ask for the Marty Pipe

). It an excellent race pipe. That is also the pipe that Stan Simpson was running on his 20 boat. I have just gotten a SPP pipe from Australia that ran well in a first test. just didn't have enough shake down time with it to race with yet. Warren Tremblay and Rod Hendricks were running the S Pipe but it is a little "switchy" (doesn't go on an off the pipe very well). If I had to decide right now which pipe for racing, I would choose the Buaas pipe at 11 1/8" from center of engine to seam.

 

[vision race boats]

Hi Marty. I saw that pipe that Buaas had listed as the Marty pipe and thought that must be one you designed, what is the correct length, you wrote 11 1/8"

Thank you for the info and good seeing you this past weekend.

 

[Marty Davis]

Hi Marty. I saw that pipe that Buaas had listed as the Marty pipe and thought that must be one you designed, what is the correct length, you wrote 11 1/8"

Thank you for the info and good seeing you this past weekend.

I have 67 boats on my mind and missed that. It is 8 1/8" - Sorry...

 

[vision race boats]

Hi Marty. I saw that pipe that Buaas had listed as the Marty pipe and thought that must be one you designed, what is the correct length, you wrote 11 1/8"

Thank you for the info and good seeing you this past weekend.

I have 67 boats on my mind and missed that. It is 8 1/8" - Sorry...

Sounds good,Thanks again Marty

 

[dave roach]

The CMB pipe is that the new CMB nitro pipe from Stu.I know that It works very will.

Dave

 

[chuck st romain]

I don't mean to jack ur thead but what is the advantage/disadvantages to the "dd". Is it just the rear exhaust? Thanks

 

[vision race boats]

The CMB pipe is that the new CMB nitro pipe from Stu.I know that It works very will.

Dave

Hi Dave. As far as i know it is the newest 21 nitro pipe, i have had it for about a year, do you know when the latest pipe came out. Thanks

 

[vision race boats]

I don't mean to jack ur thead but what is the advantage/disadvantages to the "dd". Is it just the rear exhaust? Thanks

Hi Chuck. From what i understand the DD has a different sleeve with different timing numbers, and i personally like the rear exhaust over the wrap around header, i haven't had mine long but so far i can tell it is a powerhouse, and the workmanship inside the engine is a work of art.

 

[dave roach]

If the pipe is a year old and it should be the new pipe.

Dave

 

[Warren Tremblay]

Switchy yes, but when it hit, holy shizzat hold on lol

 

[stan simpson iv]

The question is what is a "GOOD" Pipe for the N.R. D/D...I hear that the Bouchie pipe is a VERY good addition to the D/D and is performing well for several people I know. Yes I ran the Carbon pipe (Marty's)and ran well,"BUT" I run the rear ex. engine in my rigger. My 21 rigger is Brand New and I am still playing around with pipes...with my setup the MAC Airplane pipe has been the best combo so far.

Junker is asking about the D/D,I guess it is personal preference. If I had a D/D I would get the Bouchie pipe. I have the 45 Bouchie pipe...she is Very Strong. JMO

 

[shoboat]

Rich,

If you can find one? try an OPS 4280 which is a 29/40 pipe.

7.5" and it will rev quite well. I just found one in steel on EBay

and I think it is going to be wicked. Are you running Punch fuel?

Have Fun Testing,

Mark Sholund

 

[Tom Foley]

The carbon Buaass pipe is great , pulls like a tractor and revs great . mine is still set long . Great pipe .

 

[Warren Tremblay]

Just got mine In yesterdays mail tom, what length are you running yours at

 

[vision race boats]

Thanks for all the input, when you guy's mention the Buaas pipe do you mean the Marty designed pipe, i see he has a few different pipes so i just wanted to make sure. Mark i am running Technology fuel from John 60%. Thanks again for all the help.

 

[shoboat]

Rich,

Yes, they are talking about the Marty pipe from Brian.

The 35,000 pipe from Scott is a great pipe also.

Lots Of Options,

Mark Sholund