If you have a tuner that tells you that your engine won't handle higher RPM or loads due to not having oil/piston squirters for cooling. He doesn't know your engine very well.
It's kind of ingenious actually, although our F22A & F22B blocks do not have those fancy little oil squirting tubes like our sister blocks do. The Honda engineers came up with a more subtle way to lubricate and cool the under sides of our pistons.
Next time you have the chance to look at a stock PT3 F22A/B rod, look at the shoulder just above the BE bore where the shaft begins. You will see a small hole that points straight up the shaft of the rod. OK it's not 100% straight it is on a slight angle....... Also our bearings reflect this small hole.
If you were to look at this hole in conjunction with the oil supply hole in the crank journal. You would see that these holes align in such a way that for just an instance, there would be a straight path for oil to follow at the given pressure for the engines RPM. The higher the RPM the greater the pressure. This straight shot of pressurized oil would flow directly from the crank journal through the bearings and connecting rod. This system has been design so that at x degree in crankshaft rotation. The oil will squirt through this hole directly into the bottom of the piston. AKA piston cooler and lubricator.
This is why it is important to install your rods in the same orientation that they came out in.
On another note; If you go to use a set of H22 rods in an F block. You will very quickly see that those rods do not have the oil ports in them. If you want the stock oil squirt you will have to use F22 rods or have the H22 rods machined. That is why I will be taking my to the machine shop to have the ports added.
There have been a a few people who have built engines while removing the oil squirters and had great success. I like the oiling design and I trust the tech behind it. That's why I will choose to pay the money
I saw some misinformation in another thread and thought that I would pass this information along.
Cheers!
It's kind of ingenious actually, although our F22A & F22B blocks do not have those fancy little oil squirting tubes like our sister blocks do. The Honda engineers came up with a more subtle way to lubricate and cool the under sides of our pistons.
Next time you have the chance to look at a stock PT3 F22A/B rod, look at the shoulder just above the BE bore where the shaft begins. You will see a small hole that points straight up the shaft of the rod. OK it's not 100% straight it is on a slight angle....... Also our bearings reflect this small hole.
If you were to look at this hole in conjunction with the oil supply hole in the crank journal. You would see that these holes align in such a way that for just an instance, there would be a straight path for oil to follow at the given pressure for the engines RPM. The higher the RPM the greater the pressure. This straight shot of pressurized oil would flow directly from the crank journal through the bearings and connecting rod. This system has been design so that at x degree in crankshaft rotation. The oil will squirt through this hole directly into the bottom of the piston. AKA piston cooler and lubricator.
This is why it is important to install your rods in the same orientation that they came out in.
On another note; If you go to use a set of H22 rods in an F block. You will very quickly see that those rods do not have the oil ports in them. If you want the stock oil squirt you will have to use F22 rods or have the H22 rods machined. That is why I will be taking my to the machine shop to have the ports added.
There have been a a few people who have built engines while removing the oil squirters and had great success. I like the oiling design and I trust the tech behind it. That's why I will choose to pay the money
I saw some misinformation in another thread and thought that I would pass this information along.
Cheers!
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