SoCal Jet Boats

Tech Talk => Engine Mechanical / Electrical => Topic started by: Nick on January 23, 2009, 10:44:01 AM

Title: Cutting Long Tube Bassetts to make them Sort Tube?
Post by: Nick on January 23, 2009, 10:44:01 AM

Guys,

I am looking for some OT's for my Hallett and am finding a lot of 'Long Tube' models :banghead:....but I want short ones....so can I cut them?

If so what are the repercussions if any?

Thanks.

Title: Re: Cutting Long Tube Bassetts to make them Sort Tube?
Post by: SLCKREG on January 23, 2009, 10:54:58 AM

I've heard cutting them will make less power not more. I assume you plan on running them dry.

Title: Re: Cutting Long Tube Bassetts to make them Sort Tube?
Post by: Ralph Brunt on January 23, 2009, 11:07:24 AM

yes you can cut them, and old school method of telling how long they need to be is take a tire crayon and mark them along the colector. then run the boat where the crayon is not melted is where you make the cut.

Title: Re: Cutting Long Tube Bassetts to make them Sort Tube?
Post by: beerjet on January 23, 2009, 11:35:43 AM

DAAAAAANG Ralph !
I kept having to fight my crew chief and his crayon off of my boat .  ;D

-beerjet-

Title: Re: Cutting Long Tube Bassetts to make them Sort Tube?
Post by: Nick on January 23, 2009, 11:51:05 AM

Ok, I got it, so you take the crayon and run a long line along the collector and at the first point that the line is not melted is where it's safe to make your cut? I like the idea...seems pretty simple.

Dumb question time...the "collector" is the large 4"+/- tube that is that part that acutally goes out and over the transom right?

Title: Re: Cutting Long Tube Bassetts to make them Sort Tube?
Post by: pw_Tony on January 23, 2009, 11:52:27 AM

Quote from: Ralph Brunt on January 23, 2009, 11:07:24 AM

yes you can cut them, and old school method of telling how long they need to be is take a tire crayon and mark them along the colector. then run the boat where the crayon is not melted is where you make the cut.

That's what I've done as well. Or if the headers have a few seasons on them you can see where the collector on the header stops getting hot, and cut there

Title: Re: Cutting Long Tube Bassetts to make them Sort Tube?
Post by: Nick on January 23, 2009, 11:53:49 AM

Quote from: SLCKREG on January 23, 2009, 10:54:58 AM

I've heard cutting them will make less power not more. I assume you plan on running them dry.

Are you asking the question about running them dry because of the black/hot water that will be dripping on transom or is their some other reason that I dont know of?

Title: Re: Cutting Long Tube Bassetts to make them Sort Tube?
Post by: LBsuperjet on January 23, 2009, 12:39:24 PM

Quote from: Nick on January 23, 2009, 11:51:05 AM

Ok, I got it, so you take the crayon and run a long line along the collector and at the first point that the line is not melted is where it's safe to make your cut? I like the idea...seems pretty simple.

Dumb question time...the "collector" is the large 4"+/- tube that is that part that acutally goes out and over the transom right?

yes sir...thats the part...

Title: Re: Cutting Long Tube Bassetts to make them Sort Tube?
Post by: SLCKREG on January 23, 2009, 12:42:48 PM

Yep, sounds like your aware, I've seen some cut so short, it looks like they'd be draining into the boat.

Title: Re: Cutting Long Tube Bassetts to make them Sort Tube?
Post by: jim brock on January 23, 2009, 01:06:21 PM

water is not suppose to comes out of the header till 16 - 1800 rpm and it will blow past your boat, if you get water you are runnig to much thru your headers,

Title: Re: Cutting Long Tube Bassetts to make them Sort Tube?
Post by: SLCKREG on January 23, 2009, 01:25:59 PM

Just avoid a tail wind and your good to go.lol  To each his own I've never been able to figure out why you'd want to cut em.....but what the heck do I know :screwy:

Title: Re: Cutting Long Tube Bassetts to make them Sort Tube?
Post by: Nick on January 23, 2009, 01:44:57 PM

I got it, thanks guys, I will just have to put them on and see what they look like before I make any major mods. Hey Ralph, can you shed some light on my collector question above when you get a chance?

Title: Re: Cutting Long Tube Bassetts to make them Sort Tube?
Post by: Nick on January 23, 2009, 01:48:01 PM

Nevermind Ralph looks like my question was already answered, sorry, shoulda read the whole thing.

Thanks guys, I know I need to get some pics up.