thoughts on removing oil injectors?
I am having an engine built by Ocean @ Chikara right now and he suggested removing the oil injectors and that he does this on nearly every build he does. I am going FI (Rotrex) and just wanted a second opinion or some input. I trust him with basically anything Miata related but he builds a lot of N/A engines where it would make sense to remove but what about an FI engine? He said his 1.9L N/A is running extremely high cyl head and egt temps (higher than most FI engines, the way he tuned it) and said if his car is fine mine will be as well.
Any thoughts? |
Why would you want to INTENTIONALLY remove something that makes your car run safer and cooler helping it stay safe?
Sounds stupid to me. |
That's kind of what I'm asking. But thanks for the input! :P
Remember that there are many boosted engines out there that do not have oil injectors. |
subscribed, I want to hear this
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Originally Posted by falcon
(Post 630611)
Remember that there are many boosted engines out there that do not have oil injectors. I want to hear what he claims woudl be the BENEFIT of removing them. |
He said the benefit is lower oil temps and less fuel dilution in the oil. Do you know who Ocean is?
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one of the main points of oil is for cooling the internals! oil squirters = better cooling, not sure why you'd remove them.
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Originally Posted by falcon
(Post 630621)
He said the benefit is lower oil temps and less fuel dilution in the oil. Do you know who Ocean is?
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if you want cooler oil, get an oil cooler. do you know who BRAINEACK is?
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Originally Posted by falcon
(Post 630606)
I am having an engine built by Ocean @ Chikara right now and he suggested removing the oil injectors and that he does this on nearly every build he does. I am going FI (Rotrex) and just wanted a second opinion or some input. I trust him with basically anything Miata related but he builds a lot of N/A engines where it would make sense to remove but what about an FI engine? He said his 1.9L N/A is running extremely high cyl head and egt temps (higher than most FI engines, the way he tuned it) and said if his car is fine mine will be as well.
Any thoughts? |
His engine sees 9000RPM's and has 2000* EGT's.
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FM mentions on their site that their pistons are designed to be able to remove the oil squirters too.... apparently it is a common thing.... that was all that i could find out though.
Maybe call FM and ask them why you would do it, and what their pistons do to offer the ability to remove them. Im not an FM part whore, but i noticed this when flipping through their catalog. |
oil cooler = more cooling of oil than removing the squirters could ever imagine to achieve.
Plus as brainey said: isn't the whole POINT of oil to COOL the engine by transfering its heat into itself? |
If you have forged pistons, you will be fine if you remove them. The mitsubishi 4g63-T came with oil squirters from the factory, however many rebuilders omit them when building motors with forged bottom ends with no negative side effects. This also allows for the use of non-turbo cores (no oil squirters) for building new motors as factory turbo motors can sometimes be hard to find for a decent price depending on where you are.
*EDIT* I'm not saying you SHOULD remove them, I'm just relaying what I've seen on other platforms. |
Originally Posted by 18psi
(Post 630641)
I think whereas he could spin to 9k and get 1600* egt's.
And he chooses to run more dangerous. Sounds kinda dumb to me |
Originally Posted by 18psi
(Post 630641)
I think whereas he could spin to 9k and get 1600* egt's.
And he chooses to run more dangerous. Sounds kinda dumb to me Here, have a read. http://clubroadster.net/vb_forum/showthread.php?t=18582 |
Here is the paragraph where FM talks about not needing Oil Squirters.
The skirts are given a moly coating for low friction, and there`s a ceramic coating on top of the piston to protect it from the heat of high power. This keeps the heat in the combustion chamber where it makes horses, not in the oil where it makes the baby dinosaurs cry. We also designed them to run without the factory oil squirters, which gives higher oil pressure, lower oil consumption and higher power levels due to a drop in pumping losses. |
Originally Posted by Jeff_Ciesielski
(Post 630643)
If you have forged pistons, you will be fine if you remove them. The mitsubishi 4g63-T came with oil squirters from the factory, however many rebuilders omit them when building motors with forged bottom ends with no negative side effects. This also allows for the use of non-turbo cores (no oil squirters) for building new motors as factory turbo motors can sometimes be hard to find for a decent price depending on where you are.
*EDIT* I'm not saying you SHOULD remove them, I'm just relaying what I've seen on other platforms. |
Originally Posted by falcon
(Post 630648)
You're negativity is kind of irritating me. Do some research on who this guy is, and then tell me he is dumb after. He chooses to run "dangerous" that's fine. AFAIK he also has build the highest HP 1.9L N/A in N. America just chooses not to flog it all over the internet. :jerkit:
Here, have a read. http://clubroadster.net/vb_forum/showthread.php?t=18582 |
That's not a 1.9L, that's a 1.7L ;). The 1.9L is in his personal car and is running 13:1 compression pistons. And that 150whp is on a dynapack.
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