first of all, why are they so expensive.

they seem to be 2000 bucks or more (generally much more).

I cant imagine it's that hard to build your own.

it seems all it needs is a custom low profile oil pan, some fittings, some hose, an oil reservoir, the pump and a few other bits and pieces.

discuss.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mr.E.G. &raquo;</TD></TR><TR><TD CLASS="quote">first of all, why are they so expensive.

they seem to be 2000 bucks or more (generally much more).

I cant imagine it's that hard to build your own.

it seems all it needs is a custom low profile oil pan, some fittings, some hose, an oil reservoir, the pump and a few other bits and pieces.

discuss.
</TD></TR></TABLE>

Right there skippy.

Decent pumps run around at least $650 and good 3 stage pump are upwards of $1000. Add in 4-$500 more for lines, fittings, custom pan, brackets, pulley, custom crank pulley, etc.

Adds up.

EDIT: Also, can't use V pulleys for oil pumps. MUST use toothed belts for reliability. Can't have the pump slip at high rpms. That would be detrimental.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MADMAX_zero &raquo;</TD></TR><TR><TD CLASS="quote">

Right there skippy.

Decent pumps run around at least $650 and good 3 stage pump are upwards of $1000. Add in 4-$500 more for lines, fittings, custom pan, brackets, pulley, custom crank pulley, etc.

Adds up.

EDIT: Also, can't use V pulleys for oil pumps. MUST use toothed belts for reliability. Can't have the pump slip at high rpms. That would be detrimental.

</TD></TR></TABLE>

what is so special about the pumps. i've observed that all of the dry sump kits have a similar looking pump. it looks like a rotary engine.

are these pumps specifically made for this purpose? do the kits you buy all use the same type of pump?

like, is this something like a damper where there are tons of companies that make them, but by design they are all fairly similar, or is this like a wiggins clamp where they are a patented thing and only come from one source?

also, i understand the concept of the single stage dry sump system, but what's the purpose of a multi stage system?

 

The pumps are purpose built.The multi stage are designed to scavenge oil from different places in the engine and also pull more of a vacuum.There are used pumps out there but because the Hondas turn the opposite direction they are not a bolt on.You could use them but you need to run them with the body on the frame with the pulley end facing towards the tranny.And used pumps have usually had metal run through them from blown motors. An external wetsump pump is much cheaper and helps eliminate the stock pump failure.

 

precision machined components cost alot of money, gerotor pumps are high precision components. You could pretty easily build a cheap dry sump system. Use piggy backed stock pumps, home depot fittings, and dishwasher drain hose. Of course your engine would be forever blowing up, but hey, it was a cheap dry sump system right?

Anyways I guess my point is that the cost adds up, and you wouldn't want low quality components on the most critical system on your engine.

 

Maybe OBX will sell one that's built like crap, yet you disassemble and rebuild like their LSD's . Their diff's hold up though for real

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Niles &raquo;</TD></TR><TR><TD CLASS="quote">precision machined components cost alot of money, gerotor pumps are high precision components. You could pretty easily build a cheap dry sump system. Use piggy backed stock pumps, home depot fittings, and dishwasher drain hose. Of course your engine would be forever blowing up, but hey, it was a cheap dry sump system right?

Anyways I guess my point is that the cost adds up, and you wouldn't want low quality components on the most critical system on your engine. </TD></TR></TABLE>

you didnt used to be so sarcastic. is there something you need to talk about?

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by NJIN BUILDR &raquo;</TD></TR><TR><TD CLASS="quote">The pumps are purpose built.The multi stage are designed to scavenge oil from different places in the engine and also pull more of a vacuum.There are used pumps out there but because the Hondas turn the opposite direction they are not a bolt on.You could use them but you need to run them with the body on the frame with the pulley end facing towards the tranny.And used pumps have usually had metal run through them from blown motors. An external wetsump pump is much cheaper and helps eliminate the stock pump failure.</TD></TR></TABLE>

i actually dont own a honda (anymore), but you brought up an interesting point. i didnt even consider the way the engine turned as a factor in selecting a dry sump pump.

is there a reason there is no electric oil pump option?

 

Hahah, I think that's what happens when you post at work at a job that is relentlessly irritating.

Anyways, you wouldn't want an electric pump. Like I mentioned above the oil system is probably the most critical one on the car. If something else doesn't work your engine might not run, but if your oil isn't flowing you could fubar alot of things. :D An electric motor is just something that could fail. It's true that the oil pump drive belt could go as well, but that's just one part. In a electric system you would have all the same fittings and hoses, plus wiring, plus a motor, plus the alternator belt, plus the alternator, plus a fuse...
Really the best way to drive down the cost of a dry sump system is buy all the parts used, and have a simple (something like three stage) used pump rebuilt. Of course re-building pumps isn't cheap either, because doing it correctly requires some high dollar equipment. I'm sure howitt knows alot better than I do what kind of machinery is needed to clean up a worn oil pump.

This is why accusumps and baffled pans are popular. Dry sumps are complicted by nature, and so they end up pricey.