SoCal Jet Boats
Classifieds => WTB => Topic started by: riptide84 on October 24, 2014, 11:58:35 AM
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Thinking about changing scoops... Anybody have this scoop they want to sell? Hopefully set up for dual carbs.
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I want that style too.. 👍
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if anyone has one.....i can easily make a copy. will not damage the original.
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if anyone has one.....i can easily make a copy. will not damage the original.
if that could happen I would be so pumped
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hell yeah....now we just need someone to pony up an original....
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I want one too!!!
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anyone know how to get a scoop like this?? new...
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Summit
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There like 350 new
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tree fiddy......whooooaaa doggie....
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Yeah tree giddy without a tray...That there is a kick in the trouser snake
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I can make the trays
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Collaboration!
I'll do the scoop, lifted can punch out the tray....
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Collaboration!
I'll do the scoop, lifted can punch out the tray....
sounds good to me! now we just gotta find a scoop to use for a mold.
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i got my peepers peeled
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What would the donor get out of this deal?
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What would the donor get out of this deal?
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Word on the street is a movie theater slob job
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I'm in, if I can pick the Chick....
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What would the donor get out of this deal?
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while i cant disregard the slob job.....
what would be worth it for the donor. keep in mind they'd have nothing to lose. if for some reason donor part is damaged....it would be repaired/replaced....(damage risk is extremely low to nil )
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bUmP
::)
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Anything
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theres this one on CL... different style obviously...
http://sandiego.craigslist.org/esd/pts/4715760178.html (http://sandiego.craigslist.org/esd/pts/4715760178.html)
(https://www.socaljetboats.com/proxy.php?request=http%3A%2F%2Fimages.craigslist.org%2F00h0h_9zqpXtSWG8U_600x450.jpg&hash=8041edd68edcdf2138637cbe0c763c406d2a6fac)
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I can Copy it as well.... I would cover cost of mold.
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He wants 175 for that 1
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I have this style now
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Doable..... if anyone wanted that style....
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I have this style now
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This one could be cool, since single carb set ups are becoming a little more legit the last few years
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If any 1 wants to copy it they can I can make the trays
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Any interest in that style?
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What are your thoughts about shaping your own unique style from foam? Foam blocks compatible with polyester resin are available from fiberglast.com or you can cast your own from 2-part foam, shaped, coated with latex, and laminated.
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What are your thoughts about shaping your own unique style from foam? Foam blocks compatible with polyester resin are available from fiberglast.com or you can cast your own from 2-part foam, shaped, coated with latex, and laminated.
Kind of dig that idea, put something new out. Maybe go a little crazy multiple inlet holes, mold some skulls or faces in too? Get nuts with it.
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My pants just got tight >:D
I'm totally down! Is there some science behind the scoop? Meaning does it ram air in Carb at speed...but more so for looks?
I'll see about sketching something. However, I'd need tray dimensions... I don't have a scoop so it would be a guess for me to come up with tray size....for dual or single carbs.
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Make the scoop and I can make the tray to what ever size u need
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Those scoops are all pretty cool. I personally am only looking for the Comp 1 drag scoop style. I also have a formula 5000 style scoop if someone wants that style. This is my scoop I have now (https://www.socaljetboats.com/proxy.php?request=http%3A%2F%2Fi1242.photobucket.com%2Falbums%2Fgg536%2Frriptide84%2Fphoto_zpsc1d83989.jpg&hash=88c1054a56a8de4b72ae44889d86d790723da2db) (http://s1242.photobucket.com/user/rriptide84/media/photo_zpsc1d83989.jpg.html)
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Those scoops are all pretty cool. I personally am only looking for the Comp 1 drag scoop style. I also have a formula 5000 style scoop if someone wants that style. This is my scoop I have now (https://www.socaljetboats.com/proxy.php?request=http%3A%2F%2Fi1242.photobucket.com%2Falbums%2Fgg536%2Frriptide84%2Fphoto_zpsc1d83989.jpg&hash=88c1054a56a8de4b72ae44889d86d790723da2db) (http://s1242.photobucket.com/user/rriptide84/media/photo_zpsc1d83989.jpg.html)
I like that style best
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I like that style best
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I like it too. I'm just not sure if my current scoop will look good on the new deal I'm building. I want to color match the scoop to the boat and I have a feeling the shape of the scoop will distort the design..
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U can get the formula 5000 scoop for $119 off line take 2 weeks to make
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U can get the formula 5000 scoop for $119 off line take 2 weeks to make
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I have that scoop right now.
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Scoop
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My pants just got tight >:D
I'm totally down! Is there some science behind the scoop? Meaning does it ram air in Carb at speed...but more so for looks?
Yes, there is a lot of science and development that goes into a properly functioning scoop.
According to Bauman; Chrysler induction expert who developed the Pro Stock style scoop (of which there have been very few changes), back in the early 1970s:
1. One basic function of a scoop is to have air forced into the carburetor without restriction.
1.1A forward facing opening measuring 30 square inches is an important consideration.
1.1.1 A larger opening area helps at low speed.
1.1.2 A smaller opening helps at high speed.
2. Location of the scoop relative to the carburetors
2.1 It is very important that the carbs be depressed .50 to .75 inches below the scoop opening
2.2 The front carb should be located 4.5 to 5.0 inches behind the opening.
3. Functioning and testing of a scoop.
3.1 A drag car with a properly functioning scoop should be 1 to 1.5 MPH faster.
3.2 Adding a scoop to a carburetor system leans out the carburetor approximately 3 jet sizes.
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From Mopar Chassis: Speed Secrets & Performance Modifications for Chrysler-Plymouth-Dodge RWD Racing Cars 9th Edition
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According to Carroll Smith, author of Prepare To Win, Tune To Win, and Engineer To Win:
A properly designed air box (scoop) can do several things:
1. Increase engine power by increasing the flow of air through the engine and by providing the coolest available air to the engine.
2. Even out the distribution of air to the intake stacks.
Functional air boxes of the early Formula One Teams all had very large intakes, complete with generous radii. The intakes invariably lived well up in the breeze -- just behind and over the driver’s head. The inlets fed large diffusers which also served as plenums, and bases of the diffusers were sealed to the intake stacks. The outside shape was carefully sculpted to reduce drag.
So what is actually required to make an air box work -- and why do so many of them not work?
First, the intake must have enough area to get a sufficient volume of air to the engine at low speed when the ram doesn’t work. Remember that airflow into the box varies with speed while air required by the engine varies with RPM. We’re not trying to ram at low speeds -- we are merely trying to avoid choking the engine. A large enough inlet for low speeds probably means that we will over ram at high speed. The most common method of dealing with this situation is to depend upon leakage between the plenum base and intake stacks or on small bleed holes in the plenum. Along these lines, it is absolutely necessary, if you are using carbs, to make sure that the float chambers are seeing the plenum pressure. Otherwise your mixture strength is going to be off. If the air box is really working it will also be necessary to supply more fuel to the engine or you will run lean -- maybe even enough to burn a piston.
Next the edges of the intake opening must be well radiused to avoid partially stalling the inlet air. The intake must be so located that it cannot be blanked out by some other part of the vehicle (or driver). It must also be served by high energy air which means out in the free airstreem for a ram duct.
The purpose of the diffuser/plenum is to persuade the airflow to turn ninety degrees as smoothly as possible and to provide an expanding chamber in which the velocity component of the airstream energy will be converted to pressure which will be equal at each intake stack. We also have to avoid turbulence at any of the intakes (venturi).
Theoretically the plenum should clear all of the intake stacks (venturi) by at least 1/2 diameter and a full diameter would be better. This is sometimes a bit difficult to achieve. It is probably more important to get the shape right and to keep the last six to eight inches of the vertical walls vertical. There is a theory that the stacks should extend into the plenum chamber to minimize turbulence but it doesn’t seem to make any practical difference.
Speaking of inlet stacks, any basic air conditioning book informs us that for maximum undisturbed flow the lip of an inlet stack should have a full radius.
The outside shape of the air box is a question of minimizing drag. You should make certain that the whole thing is securely enough attached that there is no possibility at all of its coming off.
Assigning some basic numbers to the features under discussion:
Intake Ram (PSI) = (Air Density (lb/ft^3) * (Air Velocity in FPS) ^2) / 288g
At 80 MPH
Intake Ram = (.076 * (118)^2) / (288 * 32.2) = .11 lb/in^2
At 160 MPH
Intake Ram = (.076 * (235)^2) / (288 * 32.2) = .45 lb/in^2
In both cases we have assumed a 100% efficient duct, which is not possible -- 75% efficient would be a good one. So the figures become .083 and .34 respectively. They don’t sound like much -- and they aren’t -- in the quantitative sense. But a gain of .34PSI inlet pressure is a percentage gain of 2.3% over standard atmospheric pressure -- which is worth talking about.
The largest gain in engine performance, however, will come from the even distribution of inlet air to the individual intake stacks (venturi) that is provided by a well designed and efficient plenum.
My last work in airboxes is that they work. They work on any type of race car and they work with either carburetors or fuel injection. They only work if they are correctly designed. It is worth taking the time and trouble to make a good one.
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Yes, there is a lot of science and development that goes into a properly functioning scoop.
According to Bauman; Chrysler induction expert who developed the Pro Stock style scoop (of which there have been very few changes), back in the early 1970s:
1. One basic function of a scoop is to have air forced into the carburetor without restriction.
1.1A forward facing opening measuring 30 square inches is an important consideration.
1.1.1 A larger opening area helps at low speed.
1.1.2 A smaller opening helps at high speed.
2. Location of the scoop relative to the carburetors
2.1 It is very important that the carbs be depressed .50 to .75 inches below the scoop opening
2.2 The front carb should be located 4.5 to 5.0 inches behind the opening.
3. Functioning and testing of a scoop.
3.1 A drag car with a properly functioning scoop should be 1 to 1.5 MPH faster.
3.2 Adding a scoop to a carburetor system leans out the carburetor approximately 3 jet sizes.
right.... :-\ thats why duplicating existing is simpler. i can make a custom scoop....but it may not be performance beneficial.
these measurements help narrow things down...im sure there more to it than this....hmmm.....pants are loose again....
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Tune To Win
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Tune To Win
i can understand those drawings. well....if anyone is looking to have performance suffer, but have a kick ass scoop..... :screwy: ::)
seriously....some engineering required....or i can maybe make a cover that attaches to your current scoop...so it looks different....but functions as usual.
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I pretty sure if cuppa the existing scoop it will work just fine
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I pretty sure if cuppa the existing scoop it will work just fine
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i take it you meant cover*....or copied?
hmm....
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Yes copy
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then true....the copied version would work as good as its original.
has anyone noticed any improvements when first installing their scoop? did they have to jet accordingly? or plug n play?
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Ebay item 141452594822 .... 150$ already body work done and painted
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Ridetide84 how much would are u looking for the red formula 5000 scoop?
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Ridetide84 how much would are u looking for the red formula 5000 scoop?
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I'd take $80 for it. It has a couple spots where the gel coat has cracked and one chip on the top. Comes with a tray that was set up for dual dominators but converted to standard size dual carbs. Also comes with rope deflector.. This scoop originally was on an old drag boat
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I'd take $80 for it. It has a couple spots where the gel coat has cracked and one chip on the top. Comes with a tray that was set up for dual dominators but converted to standard size dual carbs. Also comes with rope deflector.. This scoop originally was on an old drag boat
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Dont want to jump in front of anyone that has first dibs on it but if there not interested in it I am!!!
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Dont want to jump in front of anyone that has first dibs on it but if there not interested in it I am!!!
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funny, i was thinking the same thing....this would be a good candidate to make copies from. definitely not cutting in line....
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funny, i was thinking the same thing....this would be a good candidate to make copies from. definitely not cutting in line....
well if no one wants it and if you or I pick it up we will make a mold I do that stuff to
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roger that!
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I've sent a PM to the dude who has first dibs. I'll keep you two posted
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hey, whats fair is fair.... 8)
i hope you guys come to an agreement :thumbup:
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Pm sent
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My scoop sold
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I want to make a scoop that like a tall top fuel injector. If to know what I mean ? It would have about 3
3" hole across the front. And about 4"tall and 11"12" wide
at the opening. The base would be lust larger than cab opening around 1-1/2 and be an oval shape. The leading edge of the face would be about 8"-10" in front of carb opening. The lower face of front opening would about 8"-10" a above the top if carb. The upper face would end up about 10"-14" total hight. So then the top would slope on a gradual curve in to the base of the mount. The sides would taper in from max width to base mount. Then the lower front would slope on the same curve as the top one does. All rounded edges.
I'll try and draw one of find a photo.
Thanks for the rant any interest let me know.
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Something similar to this
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interesting. what material were you thinking? (besides carbon, unless you just want the look of carbon)?
also, did you have a price range or budget in mind? PM me if you'd like....
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I like that scoop
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$3500 :sly:
wow....
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How much is that scoop
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its 3500 dollars bro....a spicy meatball!
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Holly chit
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That's the injector hat for 3500. I want a copy of a fiberglass version if it. It would be a little different but I like the look!!
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interesting. what material were you thinking? (besides carbon, unless you just want the look of carbon)?
also, did you have a price range or budget in mind? PM me if you'd like....
I'm just kinda thinking out loud right now. This motor build is killing every dollar I come across!!!
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ill chew on this one....try to come up with a model and make a mold of it....while being cost effective. one offs are pretty expensive, not 3500...., but pricey. if others are interested we could maybe set up a pool......could lower the cost per person by sharing the load, you know.
now, there are other ways to ....simulate....this set up. which are much cheaper.....thoughts?
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I am game I like the look
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I need a scoop too
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ill chew on this one....try to come up with a model and make a mold of it....while being cost effective. one offs are pretty expensive, not 3500...., but pricey. if others are interested we could maybe set up a pool......could lower the cost per person by sharing the load, you know.
now, there are other ways to ....simulate....this set up. which are much cheaper.....thoughts?
I'm interested.....start up project SCJB style!!
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ill chew on this one....try to come up with a model and make a mold of it....while being cost effective. one offs are pretty expensive, not 3500...., but pricey. if others are interested we could maybe set up a pool......could lower the cost per person by sharing the load, you know.
now, there are other ways to ....simulate....this set up. which are much cheaper.....thoughts?
I'm thinking carving and shaping out of foam to start with????
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Yes. Carving foam to get desired shape. Among other methods.
I like the scjb style concept....
so, 3 people interested. Sounds good. I'll work up some details....get back to you guys soon as I get some info.
I'll start a new thread; Scoop project scjb style! I'll post the info there. Anyone else looking to get one can post in this thread until 'scjb style' is up.
Everyone OK with that?
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Id like to get ahold
Of one too!
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Yes. Carving foam to get desired shape. Among other methods.
I like the scjb style concept....
so, 3 people interested. Sounds good. I'll work up some details....get back to you guys soon as I get some info.
I'll start a new thread; Scoop project scjb style! I'll post the info there. Anyone else looking to get one can post in this thread until 'scjb style' is up.
Everyone OK with that?
I'm in!!
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I'm thinking I want one also. Let me know what you need from me.
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sounds good. i count 5 guys interested so far....ill get details for you all soon as i can. :beer:
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I have the scoop I want already but just a suggestion to use larger pvc in your mock up. Might make it a bit easier.
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sounds good. i count 5 guys interested so far....ill get details for you all soon as i can. :beer:
6
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Copy, 6!
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I can make the trays
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How much to make a tray? Thinking about getting the unlimited products et112 seen below. Let me know 3103440404. Thx
Travis Wilson
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Pm sent
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Pm sent
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Pm sent back
Travis Wilson
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Copy, 6!
Anything on the scoop we talked about?
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Hey Man. It's still in progress.
Work picked up for me, so....haven't had much time for play-side work. I've got foam and I'll be carving into it soon as my last job clears. I'll keep y'all posted.
I'm gonna hustle on it as boating season is near....Might as well be tomorrow. Haha. Thanks for the post!
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Hey Man. It's still in progress.
Work picked up for me, so....haven't had much time for play-side work. I've got foam and I'll be carving into it soon as my last job clears. I'll keep y'all posted.
I'm gonna hustle on it as boating season is near....Might as well be tomorrow. Haha. Thanks for the post!
Don't rush on my account with my wife s illness my boat is on the burner behind the back burner if you know what I mean thanks Tad
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i hear ya man....i wish you guys the best