anyone seen rods like this?
06-30-2005, 06:01 PM
#23
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Re: anyone seen rods like this?
Originally Posted by cstraub
Notice anything about the rod bolt placement on the Jager rod?
They appear splayed inward......aimed inwards,
towards the pin.
06-30-2005, 07:58 PM
#24
MarineKinetics
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Re: anyone seen rods like this?
Originally Posted by David
Merc 800SC came with rods that look like that.
They are both manufactured by Manley.
Bob
06-30-2005, 09:17 PM
#26
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Re: anyone seen rods like this?
Originally Posted by cstraub
According to the Dept of Energy in Oakridge, TN they will survive at least 100K miles. Several gas and diesel OEMs are talking to Jager about this technology. You don't need bearings with these either.
Chris
Chris
07-01-2005, 08:22 AM
#27
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Re: anyone seen rods like this?
Smitty,
These in the pic have pins for the old school guys. Sometimes with new technology you have to take baby steps, so Jagers rods can run either way. Due to the lubricity that the surface has bearing clearance of .0005" can be run on rod journals. Before the nay sayers start, these rods were outlawed in NHRA where they were being run in Pro Stock very, very, very successfully. The actual rods in the Pro Stock engines I saw had 150 passes on them and all rods as far as stretch goes were within .0001" of spec.
Pin bores in the pistons in Cup cars and other high rpm engine applications are oblong horizontally. What has been found is the pin bore if left perfectly round distorts due to the higher rpm and the loads that are put on the pin support area. Pin flex is also an area they have been working on. It would be my guess the beveled little end has something to do with pin flex and reducing it during high rpm.
Chris
These in the pic have pins for the old school guys. Sometimes with new technology you have to take baby steps, so Jagers rods can run either way. Due to the lubricity that the surface has bearing clearance of .0005" can be run on rod journals. Before the nay sayers start, these rods were outlawed in NHRA where they were being run in Pro Stock very, very, very successfully. The actual rods in the Pro Stock engines I saw had 150 passes on them and all rods as far as stretch goes were within .0001" of spec.
Pin bores in the pistons in Cup cars and other high rpm engine applications are oblong horizontally. What has been found is the pin bore if left perfectly round distorts due to the higher rpm and the loads that are put on the pin support area. Pin flex is also an area they have been working on. It would be my guess the beveled little end has something to do with pin flex and reducing it during high rpm.
Chris
07-02-2005, 12:25 PM
#28
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Re: anyone seen rods like this?
Smitty,good way to take some weight out of the reciprocating piston end. Most of the pin load is down where this pin end journal is still bigger. Chris, interesting idea there on those rod bolts, angled off the vertical axis. Guess this would possibly add strength by shifting the axis loading?What is the idea on the bearings, I assume some sort of material treatment on the surface or coating?
I love this out of the box rocket science stuff!
Ray @ Raylar
I love this out of the box rocket science stuff!
Ray @ Raylar
Last edited by Raylar; 07-02-2005 at 12:28 PM. Reason: stupid spelling
07-02-2005, 12:44 PM
#29
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Re: anyone seen rods like this?
07-02-2005, 01:37 PM
#30
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Re: anyone seen rods like this?
Originally Posted by Dave_N
