*Sealing Stock Hood Using CAPLUGS* instructions, pics, 100% free install mod

[2006superjet]

so i decided to do this project so far it cost me about 10 min filling out the form online to order my free kit.

step 1
go to www.caplugs.com-under search youll need BPF-1 3/16
BPF-1 1/2 one of each. 2 come per size. you will need 2 big one small.
then wait for shipping it took me 4-5 days to get it. freeeeeee:birthday:

step 2
just put in the two large center it then press in middle it will pop in. and in they are i tried to get it out to put glue no way you will have to cut it out thus wrecking the caplug. but you can order more!!!:Banane25:

step 3
3 shave off tapper flap off the small one if you mess up the you have another isnt this great. the shove it in i will be testing superglue fiberglass/paint/hood but i doubt it will work, so i just gorilla taped over it. works fine.

step 4 ride it :brap::brap::brap::brap::brap::brap::brap::brap::brap::brap::brap::brap:::


ps. if you dont like this idea dont do it dont even read this post. only questions about install should be asked. i may add tap to cover cap incase of water pressure or somthing. but that impossible.

 

[stanton]

dont forget to enlarge the holes on back, they dont pass enough air with the holes blocked. main difference i notice with the holes blocked is water doesnt pour in when the ski is laying on the right side.

 

[2006superjet]

i

have yet to do this it has been breathing fine maybe on wot runs it could get a lil less air. do you have proof that there is a dif. please explain. id rather cut it only if absolutly needed. also thinking if i just leave the top little hole uncoverd this will let more air in and a lil water in subs/ stabs but water comes in no matter what
let me know what you think

 

[oxnard111]

dont forget to enlarge the holes on back, they dont pass enough air with the holes blocked. main difference i notice with the holes blocked is water doesnt pour in when the ski is laying on the right side.

I never did this mod, but I would imagine that it would be optimal to enlarge the holes in the back, but I don't think it is necessary. Ross C told me to just put duct tape on the holes. I asked "don't you have to enlarge the back ones?".

He said, "I never have."

So if its good enough for him, its good enough for me.

 

[2006superjet]

ya

i have been running duct tape for a long time now and havent had a prob.
only thing i think was one time after and extended wot for about 20 sec it bogged down and it sputted but lots of explanations for this.

will the boat go better with more air or is it a simple work/ wont work system.?

i have now started to run my hood straps like this
b 4 the cover the holes so now i am in the clear 100%

here is the pics the cross is my new way

the strait is the old way look as you can see the holes are almost covered up but it ran fine. unless you think it can run better.

 

[stanton]

i noticed a loss in throttle responce in and out of the water, major power loss after (literally) a second or two on the power. my hood sucks down when i hit the throttle, even after the enlarged holes. i made them about 75% bigger, and they still need to be larger.
if i have my ski on the side to where one of the holes is underwater and im using the motor to pull me up i only have half power for the first two seconds then it bogs and i have to stop and board from the rear.
just not enough air.

 

[Mark44]

o

i noticed a loss in throttle responce in and out of the water, major power loss after (literally) a second or two on the power. my hood sucks down when i hit the throttle, even after the enlarged holes. i made them about 75% bigger, and they still need to be larger.
if i have my ski on the side to where one of the holes is underwater and im using the motor to pull me up i only have half power for the first two seconds then it bogs and i have to stop and board from the rear.
just not enough air.

Sounds like you may have other issues mine are barely opened up running duel 44 and have no issues like this.

Mark44

 

[stanton]

like theres something wrong with my hood?

 

[Matt_E]

His hoodseal and pole bracket/breather may be in better shape than yours. :biggthumpup:

:haha:

 

[Matt_E]

like theres something wrong with my hood?

No, yours may be sealed right, Mark's probably isn't.

You're using a stock pole with the stock rubber plug in the hole for the cables, so no air entry there.

 

[SXIPro]

like theres something wrong with my hood?

What are you running for flame arrestors?

 

[Matt_E]

What are you running for flame arrestors?

Does it matter, if symptoms started showing up after sealing the front holes?

 

[SXIPro]

Sure it matters. Say you got 2 skis. One, due to it's choice of flame arrestor breathes a little more freely than the other.

You plug off the vents on both. The free breathing ski is still ok, but the other one that may have been borderline to begin with(more restricted air flow)now chokes out so to speak.

 

[Matt_E]

No.

Whatever will be more restrictive (hood or flame arrestor) is the determining factor.
If the F/A was marginal before, it isn't going to be worse by a hood that would be fine on another ski.

The hood flows x amount of air into the bilge.
The flame arrestor flows y amount of air into the engine.

As long as x =< y, no problems, regardless of y.

 

[SXIPro]

Walk me through this. I am just trying to learn....

You have a stock hood on a ski that has a rather restrictive flame arrestor. In the current state it runs fine.

You take that same ski, block off 40-60% off it's air passageways on that same hood. This couldn't possibly make it run crappy?

 

[Matt_E]

All air that goes into the engine, through the flame arrestors, has to go through the hood intakes.

If you restrict those intakes, you ultimately restrict the air flow into the engine - reducing the available air to go into the arrestors and into the engine.
Yes, it will run crappy, but not because of the Flame Arrrestor, but because you severly restricted air supply to the flame arrestor.
The f/a can feed the engine only what's available, and the flow capability of the f/a has nothing to do with the supply.

Put another way, seal of 40%-50% of your mouth and nose and run. Not very good, eh? :haha:

Now, do it with a gas mask on you, mouth & nose otherwise unrestricted. Your performance will still be limited by the most restrictive element, regardless of whether your mouth & nose are not restricted themselves.

What's downstream from a restrictive hood intake (good or bad f/a) has no influence on the airflow upstream.

 

[SXIPro]

I figured it would be more like a cumulative effect I guess.

You block off the hood holes, but still have a free flowing air system(flame arrestors/screens/etc) you may get away with it.

You block off the holes on something that's already having trouble breathing, and crapola.

I'm in good shape, partially block off my nose and mouth and I could probably handle a decent run.

My brother is overweight and has asthma, partially block off his nose and mouth and he may drop dead after a short sprint.

 

[Matt_E]

Eh, what do I know. I am just pulling this from a dark spot. :haha:
I might be wrong.

But IMHO it is not cumulative.

 

[SXIPro]

There is really only one way to find out. I am seeing my overweight asthmatic brother tomorrow. I'll bring the gas mask and duct tape. :lmao:

 

[Matt_E]

:crutches:

:haha:

:bigok: