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Re: cut oil squirter holes?


EMX5636
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Galant VR-4 org Post #: 1220981 posted 11/26/15 02:25 PM     Remind Me!  Send Private Message   Edit Post      
I don't see that working very effectively in a vertical stroke engine. Remember Porsche is flat like a Scooby/airplane etc.



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tektic
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Galant VR-4 org Post #: 1220983 posted 11/26/15 04:22 PM     Remind Me!  Send Private Message   Edit Post      
That's just one of the places I saw it being done.

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prove_it
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Galant VR-4 org Post #: 1221011 posted 11/27/15 10:54 AM     Remind Me!  Send Private Message   Edit Post      
I don't see why it wouldn't work. The idea is that your making a channel from the bearing for oil to be "leaked". With enough oil pressure I'd imagine that the oil would squirt far enough the piston.

Now, I don't like the idea because your adding a possibly large loss of oil at the crank. Could see oiling issues with our already weak oiling system in the 4g63.



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Galant VR-4 org Post #: 1221059 posted 11/28/15 07:31 PM     Remind Me!  Send Private Message   Edit Post      
I agree some oil will leak/spray towards the piston. Problem is, it's parallel with the rod, so most of the oil will just hit the pin area of the piston, and never make it to the crown, where the cooling really should be directed.

I do however, completely agree with your statement about losing valuable oil pressure to the crank/rod bearings. Even though it's the last place the oil goes in the bottom end, I don't know if I would like the "metered leak" that would likely drop pressure, especially at idle. The factory squirters have check valves that only open at higher pressures, conserving oil at idle/low RPM.



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Edited by EMX5636 (11/28/15 07:35 PM)

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tektic
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Galant VR-4 org Post #: 1221060 posted 11/28/15 08:23 PM     Remind Me!  Send Private Message   Edit Post      
So with no balance shaft and stock size or only slightly enlarged pressure relief valve opening, does this sound like a better option?

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donniekak
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Galant VR-4 org Post #: 1221067 posted 11/29/15 02:27 AM     Remind Me!  Send Private Message   Edit Post      
Depends on the rod side clearance. A mod like this depending on how large the cuts are can effectively triple or more the rod side clearance pressure loss. It could at least cause a localized pressure loss at the worst possible place in the engine, at the worst possible time. The upper rod bearing at peak cylinder pressure.

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tektic
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Galant VR-4 org Post #: 1221069 posted 11/29/15 07:55 AM     Remind Me!  Send Private Message   Edit Post      
The oiling hole in the center of the stock rod doesn't have any of thesee effects because its centralized?

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donniekak
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Galant VR-4 org Post #: 1221074 posted 11/29/15 10:57 AM     Remind Me!  Send Private Message   Edit Post      
It does bleed off some pressure, but you can only bleed off so much before you have an issue. If you take a bucket with a couple small holes in it you can still fill it with a hose, as long as the hose is constantly running. Keep adding holes and eventually it won't hold any water.

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tektic
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Galant VR-4 org Post #: 1221080 posted 11/29/15 06:40 PM     Remind Me!  Send Private Message   Edit Post      
I was just asking if your opinion was that having the grooves on both sides made a difference than the the hole in the center.

If you have more pressure to begin with because the relief valve isn't ported and dumping as much oil back to the pan I don't see the issue

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prove_it
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Galant VR-4 org Post #: 1221100 posted 11/30/15 09:05 AM     Remind Me!  Send Private Message   Edit Post      
The issue with that is your building an engine with the hope that it will be ok. There is no precedent on this and your fully experimenting. Now if your pockets are deep and can afford to redo all the work if it fails, then I say go for it. Now if your on a tight budget, I'd say you may want to re-think your ideas and goals, because your talking about a mod that could cause total engine failure, that is not un-doable, and completely experimental.

It could work, or it won't. No one on here will be able to make you feel better about doing this and give you the comfort you might need to move forward and do this.



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tektic
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Galant VR-4 org Post #: 1221108 posted 11/30/15 12:34 PM     Remind Me!  Send Private Message   Edit Post      
I agree totally.

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EMX5636
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Galant VR-4 org Post #: 1221148 posted 12/01/15 08:21 AM     Remind Me!  Send Private Message   Edit Post      
I agree with Prove_it. But you are better off adding the factory turbo squirters as long as you have provisions in the wide block for them if you really insist on having them. Much less trial and error than the rod idea, just might be a bit more money up front.



91 #108/2000- link
97 Kawi ZX7R Street / 03 ZX6R Track
03 Kawi KLX400R Supermoto
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prove_it
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Galant VR-4 org Post #: 1221173 posted 12/01/15 05:34 PM     Remind Me!  Send Private Message   Edit Post   
Adding some interesting info. Was re-ringing a Honda V6 today and I never noticed this, but the factory rods have 2 slots on each side of the rod that will channel oil to the wrist pin. It looks like its an oil bath that hits the wrist pin and slashes all over.

So if the factory does this, then it must work. Now with that said, it's hard to say how much oil volume is needed for this "leak".



#1284/2K NB, Totaled
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