Oil stravtion problems 1st and 2nd gear
#1
Oil stravtion problems 1st and 2nd gear
Ok well i started to ride around on my mickey thompson ET street around town. Normally the oil pressure will fall over to shy of 80 psi at 6k rpms. But under hard acceleration in first and second it will fall back to around 40 psi. I am thinking that the oil is being slammed to the back of the pan starving the pick to a little extent. Because no pressure issue in 3rd or 4th. If you lightly accelerate in 1st and 2nd the problem is not there. Is anyone else having this issue. If so what are you doing to correct it?
2000 LS1
Thanks
2000 LS1
Thanks
#3
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it did something similar on my old camaro. I always thought the oil was accumulating under the valvecover not draining to the oil pan fast enough.
When the oil was fresh it was never an issue. But as it got older and dirtier the oil pressure would drop as u described.
When the oil was fresh it was never an issue. But as it got older and dirtier the oil pressure would drop as u described.
#5
When I built my 383 I took the oil pump pickup cut it and extended it to the back of the pan. I had to modify the bottom of the pan but no more problem. I also drilled four small holes in each lifter tray to drain the oil out faster.
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Drilling holes in the lifter trays does absolutely nothing. Here's why, when you drill the hole, the oil fills to that point then starts dumping out of the hole as the level tries to increase over the hole. If there is no hole then the oil will fill the whole lifter cup, then as the level reaches the top of the cup, it will overflow out the top. I mean the cup can only be so full. Drilling holes in the cups doesnt help it drain any quicker obviously draining through 8 holes isnt quicker then 8 cups overflowing is it? It would start the drain process a tiny bit sooner, but really that would be determined by how full the lifter cup stays during normal operation.
#7
Not to start another huge debate, but, there is @ least one thread on here where guys had been debating the point, "internet myth....etc.," when a professional engine builder jumped in & made this statement. It roughly said, "before I started drilling the lifter cups, we were re-building one engine per road race, (road course), after drilling cups, the engines would last for three races before requiring a re-build."
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Im still curious as to whats going on and how to fix it besides running an extra quart of oil
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Not to start another huge debate, but, there is @ least one thread on here where guys had been debating the point, "internet myth....etc.," when a professional engine builder jumped in & made this statement. It roughly said, "before I started drilling the lifter cups, we were re-building one engine per road race, (road course), after drilling cups, the engines would last for three races before requiring a re-build."
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sounds like a pump or an o ring issue with his cam install? what oil are you running
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A long time ago I read an article in SAE about the corvette ls1 engine. In the article they mentioned that at high rpms oil would accumulate in the topend of the motor, which lower the level of oil in the oilpan. I think this also contributes to the oil consumption issues with the pcv.
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as far as drilling the cups goes i'm not reallly sure what 01ssreda4 is saying. you can't believe that 8 little cups holding oil on the top of the motor does nothing to the level in the pan itself. if you have the holes in the cups common sense says you will have slightly more oil in the pan. am i missing something?