pump brace

[tahitijet]

anyone have any pics they can share of there pump braces? also i can't get to the front intake bolts has anyone bolted it to the loader bolts?
thanks

[BrendellaJet]

I've got a similar problem. I can get to the front bolts on the intake, problem is that when I had my hull blueprinted the bolts were covered up and I dont want to mess with the body work below. Im planning to use the loader bolts.

[LGCDEVIL]

Are you guys trying to use the bolts where the suction housing bolts to the intake? This area should be pretty wide open, right below the drive shaft.

[BrendellaJet]

No.I am trying to use the bolts where the intake attaches to the hull, however they are not available(too short and I dont want to pull them out to put longer ones in). Next closest back is the loader bolts. Seems like the farther forward you go, the more effective the brace will be?

[LGCDEVIL]

I suppose that logic is correct, unless the torsional force on the pump is where the driveshaft and the pump connect? (not to mention that the front of the intake is usually under the oil pan). Maybe steelcomp can jump in here and use some really big words to explain this:D All I know is what I've seen, and that is that most of the pump braces connect where the S.H. and intake bolt together, or mid-way on the intake to hull connection. How much HP you gonna throw at it, anyway?
BTW, I kinda dumb, so I would hit up somebody a little sharper than I am to give you an answer on this.

[LGCDEVIL]

Or you could set your motor forward about 2 feet and do both:
http://www.***boat.com/image_center/data/521/123_2342.JPG

[BrendellaJet]

I suppose that logic is correct, unless the torsional force on the pump is where the driveshaft and the pump connect? (not to mention that the front of the intake is usually under the oil pan). Maybe steelcomp can jump in here and use some really big words to explain this:D All I know is what I've seen, and that is that most of the pump braces connect where the S.H. and intake bolt together, or mid-way on the intake to hull connection. How much HP you gonna throw at it, anyway?
BTW, I kinda dumb, so I would hit up somebody a little sharper than I am to give you an answer on this.
LOL. HP is 800. I think the force is where the end of the pump meets the hull. The intake is mounted rigid so it seems the brace @ mid intake is less effective than something mounted at the end of it...Who knows, I bet anything is better than nothing if installed correctly.

[fleetimus]

http://www.hotboatpics.com/pics/data/3150/4155HPIM0455.JPG
Mine is mounted on the suction housing. I want to rig one that hooks to the jet-a-way. I lost a pump a couple of years ago. It broke around the suction housing, the intake did not move. The driveshaft came apart, that is what caused the break.
http://www.hotboatpics.com/pics/data/3150/4155HPIM0398-med.JPG

[BrendellaJet]

http://www.hotboatpics.com/pics/data/3150/4155HPIM0455.JPG
Mine is mounted on the suction housing. I want to rig one that hooks to the jet-a-way. I lost a pump a couple of years ago. It broke around the suction housing, the intake did not move. The driveshaft came apart, that is what caused the break.
http://www.hotboatpics.com/pics/data/3150/4155HPIM0398-med.JPG
We are talking about two differnt problems now though(drive shaft vs boat flexing where the hull meets the intake).
I have seen some pix of a boat that had several braces, including one that supported the nose of the intake where the shaft comes out...

[LGCDEVIL]

http://www.hotboatpics.com/pics/data/3150/4155HPIM0455.JPG
Mine is mounted on the suction housing. I want to rig one that hooks to the jet-a-way. I lost a pump a couple of years ago. It broke around the suction housing, the intake did not move. The driveshaft came apart, that is what caused the break.
http://www.hotboatpics.com/pics/data/3150/4155HPIM0398-med.JPG
Rust may have been a factor in this failure.:D

[fleetimus]

No rust, CFW mud!!!!!

[fleetimus]

No rust, CFW mud!!!!! They go down fast when the suction housing breaks:sqeyes:

[LGCDEVIL]

I recall. That's the one that went down a couple winters ago?

[HBjet]

Why do you need a pump brace?
If you do not have a race or super light weight hull, why would you need a brace? I think the amount of movement (if any) a typical river/lake hull will make is not going to be noticable with/without the brace. I could be wrong, but I believe a brace is effective when there is intake movement due to a light hull layup while running in ideal water conditions (the track).
HBjet

[Ken F]

http://www.hotboatpics.com/pics/data/3084/878DCP_4101cr.jpg

[BrendellaJet]

Why do you need a pump brace?
If you do not have a race or super light weight hull, why would you need a brace? I think the amount of movement (if any) a typical river/lake hull will make is not going to be noticable with/without the brace. I could be wrong, but I believe a brace is effective when there is intake movement due to a light hull layup while running in ideal water conditions (the track).
HBjet
Jack said it would be a good idea on my boat. Not a light lay up.
Im going to incorporate the brace into a support bracket that I need to add to strengthen the roof of the intake, just above where the loader bolts to. Its a Jacuzzi pump and the area the loader bolts to is smaller than on a berk. So the idea here is to spread the load of the loader and prevent the bottom from flexing.

[tahitijet]

I suppose that logic is correct, unless the torsional force on the pump is where the driveshaft and the pump connect? (not to mention that the front of the intake is usually under the oil pan). Maybe steelcomp can jump in here and use some really big words to explain this:D All I know is what I've seen, and that is that most of the pump braces connect where the S.H. and intake bolt together, or mid-way on the intake to hull connection. How much HP you gonna throw at it, anyway?
BTW, I kinda dumb, so I would hit up somebody a little sharper than I am to give you an answer on this.
it was my understanding most tied in to the front most bolts that held the intake into the hull. i can't access those as my oil pan is right on them. next best place is the loader bolts.
i have a set back so The purpose for the brace at least in my case is to redistrubute the weight of the boat back into the stringers instead of all the extra leverage pulling on the bottom of the boat. I would think the further back you go the less effective it would be which is why i was wondering if the loader bolts are to far back to be a good spot.

[tahitijet]

Why do you need a pump brace?
If you do not have a race or super light weight hull, why would you need a brace? I think the amount of movement (if any) a typical river/lake hull will make is not going to be noticable with/without the brace. I could be wrong, but I believe a brace is effective when there is intake movement due to a light hull layup while running in ideal water conditions (the track).
HBjet
with the setback as the boat gets up out of the water your putting alot more stress and preasure on the boat especially where the intake meets the floor although my hull isn't light wieght by anymeans it does flex and we do run some fairly rough water so i can't see it as being a bad idea.
at least in my case i'm not looking at it as a performance upgrade but more so to keep from tearing up the boat over the time i plan to have it.

[Duane HTP]

Look on the nineth line of pictures from the top, on this page,
http://www.hi-techperformance.com/Gallery1.htm. There are some pump braces there.

[steelcomp]

I suppose that logic is correct, unless the torsional force on the pump is where the driveshaft and the pump connect? (not to mention that the front of the intake is usually under the oil pan). Maybe steelcomp can jump in here and use some really big words to explain this:D All I know is what I've seen, and that is that most of the pump braces connect where the S.H. and intake bolt together, or mid-way on the intake to hull connection. How much HP you gonna throw at it, anyway?
BTW, I kinda dumb, so I would hit up somebody a little sharper than I am to give you an answer on this.
Uh, ummm, brace it so it don't flex. Kinda in the middle, or on the end, somewhere like that. It don't matter.
Seriously... tahitijet, in your deal, brace it wherever you can. It's harder to make something that's going to attach to the loader bolts, but if you can, that's probably the best place.
LCG...wattup?? :D