Crazy Lift pump idea for a 24 valve......
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From: Garrard county, Kentucky
Crazy Lift pump idea for a 24 valve......
I know you can install a different cam with the lobe to run a 12 valve lift pump, but why couldnt you make something to belt drive a stock 12 valve lift pump. Like have a little block of steel that the pump would bolt to that had a little tiny belt driven "cam" inside of it with one lobe on it that would run the lift pump. It would be cheap other than maybe the mounting stuff to do it with. We all know the stock 12 valve lift pump will provide 60psi or better, and is very reliable for only $100. Say the mounting block with the little cam and a pulley cost you $200 or even $300, you still only have a maximum of $450 after the hoses in a bullet proof lift pump setup as long as your belt doesent break.... just my crazy idea of the week. 
Eric
Eric
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From: Belvidere, NJ
There's a system like that out there called the 'RASP' I believe. Runs a different kind of pump, but mounts under the crank dampener and is plumped in such a way that if the belt did break the stock system would provide backup.
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From: Celina, TX
I believe the RASP system used a fuel pressure sensor to detect a failure in the belt driven lift pump, at which time it would engage the stock lift pump which was still installed to provide fuel until you repaired the belt driven pump. Basically an automatic failover system. But I'd still carry the belt as insurance so I could make the repair ASAP. Plus, I like spares... 
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From: League City, TX
As far as a 12V mechanical pump, I believe Don M makes those. The camshaft requires replacement since it does not have the lobe for the pump. He modifies the pump too to bring down the pressure.
Originally Posted by From Don M's website
Helix 2: The Helix 2 is the best choice for just about all high performance applications. Single turbocharger and twin turbocharger engines will both benefit. Large reductions in maximum exhaust gas temperatures and smoke are immediately noticed. Increased throttle response and pulling power. Lift is higher and duration is extended on both the intake and exhaust lobes. This cam is ground from a new blank casting and is not a regrind. The H2 has the lobe ground for a mechanical fuel pump. Both the press on and press-on/bolted-on camshafts are available in the H2 grind. Bolted-on drive gears raise the durability of the system and allow for added piece of mind with high powered engine combinations. Cam failuers and gear walk have been indicated in even stock Cummins engines using the P7100 pumps that used the press-on gear system. Bolt-on gears fix this potential trouble in high performance applications.
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From: Streator Illinois
Perhaps a crazy idea, but what if someone built a setup to go between the Vacuum pump and the PS pump with a eccentric lobe and a pump mount? Im not sure there is room, but you wouldnt have to worry about a belt and it would be relatively cheap.
Another possibility would be to make a similar setup only combine the IP gear nut with a lobe and make a housing to hang around it.
Better yet, lose 12 valves and have more fun...... Sorry, couldnt resist.
Another possibility would be to make a similar setup only combine the IP gear nut with a lobe and make a housing to hang around it.
Better yet, lose 12 valves and have more fun...... Sorry, couldnt resist.
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From: fredericksburg, virginia
I've heard the fp is actually like 40 at idle then comes down to the high 20's with rpms.
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From: Toronto, ON
heres the link, but the site is under construction
http://www.koengineering.com
http://www.koengineering.com
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Cause there are those of us who just don't trust electric pumps. Not to mention I like the fact that pressure goes up as rpm's increase. Not down. The mechanical cummins lift pump almost never fails. My buddy has 200k+ on his stocker and it's running great.
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From: fredericksburg, virginia
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