ANDY B TWIN BEST COWL INDUCTION PLACEMENT?

[rbarile]

Got my A B twin almost ready to paint. Wondering what the best air induction placement would

be on the cowl. I've done left and rt side vents on some S G s ive had. Never gave the performance

aspect a thought. I have noticed some vents in the middle and some on the side.

Any suggestions? . rich b. thanks

 

[JeremyEdge]

I run and ran no vents, since i run close to other boats and on the inside water always got in thru the vents. so if you run like me leave it closed up.

 

[charles siler]

I run flaps on my outside vents and it works well . I also have one of Jeremys cowls and it works very well.

 

[ALLAN YUEN]

Look at cowl outside vents I had sold my 2 x SGX 80 twin w/ MAC84s to West Coast USA last few year ago

 

[ALLAN YUEN]

Another Sold my SGX 45 Twin w/ MAC45s to Europe

 

[rbarile]

It seems like front opening is top of the carb intake, wouldn't that cause a water problem if your behind and cross a prop wash?

rich b.

In the past i've run them on the side and below the carb. This my first twin and double screws put out a lot of water.

 

[rbarile]

The flap, is it on the inside . and is it spring loaded of sorts. got a pic.??

Rich b.

 

[rbarile]

Al what length are you running your pipes at.?? I have AA parabolics with headers and at the end of the header I get

12''. Running 1667s 5.8 full blade and 9b carbs. With rear sponses type behind the struts.

Rich b.

 

[Kevin Krogness]

Look at cowl outside vents I had sold my 2 x SGX 80 twin w/ MAC84s to West Coast USA last few year ago

Allen you have nice legs

 

[dwilfong]

NONE needed..........................Will make no difference one way or the other.........................Gust some where for water to get in to the carb when running threw the tails................

 

[ALLAN YUEN]

Al what length are you running your pipes at.?? I have AA parabolics with headers and at the end of the header I get

12''. Running 1667s 5.8 full blade and 9b carbs. With rear sponses type behind the struts.

Rich b.

Yes set up 12" will you play down - 1/4" to 1/2" or more will find perfect high speed !! Best one use ABC H-48 cup 5.5" for MAC84

Look at my pictures and I bought it from Don Ferrette . Have you learn and will you run enjoy with Twin rigger

 

[JeremyEdge]

run 5.0 or 5.1's and have pipes set at 10-3/4"-11" let the engines spin up and stay on the insides. eagles love hugging the buoys.

 

[LarryBeals]

Rudder don't look right pushed to inside