Dry Stacking, How I Do It. [Archive] - Scream And Fly Powerboat and High Performance Powerboating Discussion Forums

us1

10-22-2002, 08:37 PM

This is how to run your exhaust 90% dry. This will decrease a little low end and will gain some top end. It sounds great. This is for midsections with the liner removed and exhaust relief holes installed. It is also only for one piece exhaust plates. The first picture is pretty much self-explanatory. Either weld up all four dump holes or tap with a 5/16 18 and put in stainless or brass threaded set screws. If your plate only has two dump holes then plug both of them. Drill a 1/16 hole pointed right at the water pump to cool the pump housing. Drill both sides of the exhaust plate and tap with 1/4 pipe thread then install two 90-degree 3/8 hose barb fittings.

us1

10-22-2002, 08:39 PM

Here is what the right side and hose should look like.

us1

10-22-2002, 08:42 PM

As the picture says use 1/8 stainless fender washers in the heads and run a 3/8 hose off the popet. Water pressure is fine tunable by blocking the popet dump or using smaller orifices to control flow.

LaserModVee

10-22-2002, 08:49 PM

HELL YEAH!!!!

Thanks US1!!!

H2Onut

10-22-2002, 09:01 PM

US1, thanks, from ALL of US.

ShorePounder

10-22-2002, 09:25 PM

Thank you. :D

175checkmate

10-22-2002, 09:42 PM

Thanks us1, That helps alot.

Rickracer

10-22-2002, 09:47 PM

Oh Great, now I gotta find me a one piece adapter for my black motor to do that to. :D :D :D

P.S. Don't be alarmed Bobby, I've had a black motor a long time, it's just broke.

CompKing

10-22-2002, 10:02 PM

Thanks us-1:cool: :cool:

Talon2.5

10-23-2002, 04:34 AM

alright!!!!! he did it :D thanks US-1!!!!:D

MTCM

10-23-2002, 07:47 AM

Thanks John...........

H2Onut

10-23-2002, 07:47 AM

It seems the syndicate followers have to vote on a new member...

Need a West Coast Chapter.... I motion to induct US1, need a second vote and GodFatha approval.

Rickracer

10-23-2002, 07:57 AM

mercrazy

10-23-2002, 08:55 AM

how can i be sure i'm lined up right to hit the water pump with the cooling spray? is there a way to test my aim?

us1

10-23-2002, 09:17 AM

Just do the best you can at judging the angle. It’s not hard because the water sprays into a wide fan with all the water pressure and exhaust gases. Watch the water coming out of you popet dump tube when you are going fast and you will see how it disperses.

AnthonySS

10-23-2002, 09:18 AM

...that is an excellent article and effective use of the message board...THANKS for sharing that information with us. It is most valuable

I would like to see more articles like this form other experts!!!

Question ...How did you put the words on the pictures???

175checkmate

10-23-2002, 09:19 AM

I third.....

us1

10-23-2002, 09:19 AM

Originally posted by H2Onut
It seems the syndicate followers have to vote on a new member...

Need a West Coast Chapter.... I motion to induct US1, need a second vote and GodFatha approval.

Thats cool. I can be "Doc" as in motor doctor.

175checkmate

10-23-2002, 09:21 AM

He is never around when ya need him.

us1

10-23-2002, 09:29 AM

I just used paint in Windows. It comes with Windows.

Greg Moss

10-23-2002, 09:32 AM

I sent an article to Greg a while back how to do that with a dozen pictures on how to do it to 1 and 2 piece tuner bases and some other things I do to my cooling he wouldn't post it don't know why? He may still have it to send to some of you guy's.

Rickracer

10-23-2002, 09:35 AM

Hey Virus Can we get Greg Moss's article published? :D :eek:

H2Onut

10-23-2002, 10:00 AM

What about running a tube down a few inches and then crimpin end a bit to get the fan effect, would this work also or un a line down side of mid and direst it right at the pump from inch or so away so that pump gets max spray ?

LaserModVee

10-23-2002, 10:16 AM

Send me a copy!

I want to see the two piece done.

Clint

10-23-2002, 10:32 AM

VIRUS!
VIRUS!
VIRUS!
VIRUS!
VIRUS!

(hey it worked last time :D :D :D )

AlaskaStreamin

10-23-2002, 10:36 AM

John,
What are the chances of us "salt water users" plugging up that 1/16" hole? We have alot of kelp, and fine gravel around here. Our harbor boat's Optimax is always gettin crap in the thermostats and holding them open.

Could you glue a domed screen over the hole to help protect it? There would be no way of telling if you plugged up until you melted your waterpump right??

Thanks for the write-up!! I love it!!

us1

10-23-2002, 11:14 AM

Originally posted by H2Onut
What about running a tube down a few inches and then crimpin end a bit to get the fan effect, would this work also or un a line down side of mid and direst it right at the pump from inch or so away so that pump gets max spray ?

Mine work fine just the way they are.

us1

10-23-2002, 11:16 AM

Originally posted by AlaskaStreamin
John,
What are the chances of us "salt water users" plugging up that 1/16" hole? We have alot of kelp, and fine gravel around here. Our harbor boat's Optimax is always gettin crap in the thermostats and holding them open.

Could you glue a domed screen over the hole to help protect it? There would be no way of telling if you plugged up until you melted your waterpump right??

Thanks for the write-up!! I love it!!

I have never have one plug. All 260s have 1/16 drain holes in the cyclinder water jackets and I havent heard of a problem with those.

Talon2.5

10-23-2002, 02:00 PM

well it seems ole US-1 has 3 votes to be our west coast representative of the syndicate

john put this in your signature brother!!

the "doc" of the Sunshine Syndicate
(west coast chapter)

:D

175checkmate

10-23-2002, 02:53 PM

Way to go Skip..

US1.....Let me be the first to welcome you to the sunshine syndicate.

H2Onut

10-23-2002, 03:32 PM

VIRUS
VIRUS
VIRUS

WE WANT MOSS
WE WANT MOSS

VIRUS
VIRUS
VIRUS

Talon2.5

10-23-2002, 03:41 PM

175checkmate, you da man!! i still think about the cooking you did at the end of summer blowout and your family, great folks!!

god that was great!! and thanks again to wildhare for my hat!! and shorepounder for my merc coolie!!

VIRUS
VIRUS
VIRUS

WE WANT MOSS
WE WANT MOSS

VIRUS
VIRUS
VIRUS

CompKing

10-23-2002, 04:39 PM

Originally posted by us1
This will decrease a little low end and will gain some top end.

us-1
I uderstand the gain on the top end but what causes the loss of bottom end?

I to would like to see a 2 peice done.
Here we go again.
VIRUS
VIRUS
VIRUS

WE WANT MOSS
WE WANT MOSS

VIRUS
VIRUS
VIRUS

us1

10-23-2002, 04:45 PM

The reduction of back pressure.

H2Onut

10-23-2002, 06:48 PM

I LOVE YOUR TAG LINE !!!!!!

Time to let go of some of them 2.4 secrets you PROMICED me, but please do it private, dont want any of the White mota guys to know whats going on :eek:

CompKing

10-23-2002, 06:59 PM

Originally posted by H2Onut
I LOVE YOUR TAG LINE !!!!!!

Time to let go of some of them 2.4 secrets you PROMICED me, but please do it private, dont want any of the White mota guys to know whats going on :eek:
Do you know of any that do!!:eek: :D :D :D

175checkmate

10-23-2002, 08:00 PM

We will do it again, OH Yes we will do it again.

jag

10-28-2002, 07:00 AM

so are we gonna see the two piece how too's?

Techno

10-28-2002, 07:50 PM

Whats a 2 peice or a one piece?

Is there a reason I should dry stack? Everythings apart so that isn't an issue just wondering if the trade offs are worth it.

O/B Dude

10-28-2002, 08:20 PM

US1, as you recall, my 260 came with one of them aftermarket exhaust plates on it. Do I need to do anything to it? I have a blockoff plate on the poppet valve.---- No dump hose coming off of the poppet cover. Thx

PS Hey Virus, I too Would like to see Moss's article.

:D

us1

10-29-2002, 12:08 AM

This will decrease a little low end and will gain some top end.

us1

10-29-2002, 12:09 AM

You don't have to do anything to it. But you could drystack that plate with my instructions if you like.

Greg Moss

10-29-2002, 08:50 AM

I can send it to Jay Smith and have him put his name on it, He can send it to Greg then it will get posted for sure!:D

Talon2.5

10-29-2002, 12:23 PM

hey moss,

is it e-mailable?? if so send it to mee and i'll post the damn thing brother!! [email protected]

Greg Moss

10-29-2002, 12:30 PM

I got all those pictures and an article together sent them to greg twice and he won't post it. If I have time I will try and get it together again.

Talon2.5

10-29-2002, 01:19 PM

is there a reason is there someone it may cause trouble with like mercury marine or affiliates or any copywrite stuff? or just your homegrown kickbutt own way of a cooling system?

Greg Moss

10-29-2002, 03:54 PM

My own homegrown way of doing the cooling. Don't have a clue why he didn't post it was supposed to be done like his lower unit test but he didn't want it I guess. Wish I wouldn't of wasted the time twice to send it to him. Oh well! If I get around to finding it all again maybe I'll post it on havasu barney .com
:D

Talon2.5

10-29-2002, 06:23 PM

hell send it to me i'll write it up in all your words and post pics as a greg moss cooling tutorial :D whatcha think!!

Techno

10-29-2002, 09:42 PM

I guess since top end is my main goal I'll do it. This doesn't seem like a very hard mod to do.

Now how about a solnoid or cable valve to dump water at the low end but seal it on the top?

I like cake, so wet system on the low end and dry on the high?

us1

10-29-2002, 10:58 PM

That is a good racer trick and it works.

Techno

10-30-2002, 05:32 PM

Then with all winter to do this I'll have my cake and eat it too!

DaveR

10-30-2002, 05:54 PM

John,
Is the loss of some low end the only down side? What about tuner life?

us1

10-30-2002, 06:22 PM

I have never had a problem with the 1/16 hole method. It still sprays all over the inside of the mid section.

DaveR

10-30-2002, 10:13 PM

So that method is a compromise? Not truely "DRY", but close to the same advantage at the big end, and yet still life from the tunner and no melting of the pump? Sounds too good not to do it. I'll make it one of the winter projects! Thanks.

us1

10-30-2002, 11:10 PM

You always have to run some water or everthing melts.

LakeRacer99

10-31-2002, 03:30 PM

John:
Will this affect the paint on the midsection by running hotter? Will the water "Bake" on there. Seems like when you remove the can from a stock motor, you are cleaning the outside of the housing more. How will dry stacking affect this?
Thanks

us1

10-31-2002, 06:44 PM

It does not hurt the paint but it will, as you put it, bake on the water. Nothing a little pool acid and water wont wash off though.

Kathleen Michelle

11-05-2002, 09:24 PM

was done. Is it going to be on the Homepage?

Thanks.

Raceman

11-05-2002, 09:48 PM

Guys, several weeks ago, I woke up about 4 AM and couldn't go back to sleep. I turned on S & F and noticed that Greg (Virus) was on the website. I sent him a PM: Up early aren't you? He said he'd been up all night workin' on the website. I've seen him on at odd hours a couple of times since. I'm sure he probably has a backlog of stuff to put on the site. Greg (Moss), I hope you don't take it personally that he hasn't posted your article. I'm sure it's just buried in the backlog. He does all this stuff by himself without help. I'm pretty sure he doesn't take time to read every thread and probably hasn't seen this one since it's more of a technical nature.

I personally think he needs some help.

ken medendorp

11-13-2002, 03:51 PM

should you aim the hose barb's down the mid section so it won't get hot and discolor?

pirogue

11-14-2002, 12:24 PM

Detoit Diesel has a check valve on the 92 series engines that let air box press. through and after i think about 25psi it closes to increas air box press. it's a 3/8 opening. perhaps you can plumb that into the water sys. it will dump water from idle to about 5000 then close for top end.