FP Black Q16 635hp/640tq
what about the pan you found on the website HPF. would that be better then the ams pan also on that site they stated they are willing to custom make a pan if needed as well.
Last edited by RockmanX; Nov 3, 2009 at 09:22 AM.
Well, if you are pulling that hard, you are getting some air if you run a stock oil pickup and pan. And I dont think you would see the pressure drop and flutter on a mech gauge, especially an expensive liquid filled one since the mechanical damping is pretty great. A high sampling rate electric sensor however shows it very clearly.
Moving the pickup to rear is not a good idea. Thats just gonna move the problem to hard breaking instead of high deceleration. In factory form the car is far more likley to decelerate hard to 1g than it would be to accelerate to .7g so that is likely why the placement is where it is. Plus I dont see an accumulator even helping. Its just a mechanical device like a spring loaded plate. If a mechanical gauge doesnt show the pressure loss neither is an accumulator.
dry starting is far more damaging to engine bearings. when an engine first starts there is no oil pressure for as much as 2-4 seconds, especially bad after an oil change.
Last edited by 94AWDcoupe; Nov 3, 2009 at 09:49 AM.
The pressure drop on the graph is in seconds, not micro seconds.
Your thought process on the g's and effect on oil pressure don't match mine. First off I don't hit the brakes hard enough to see 1g very often, that's a panic stop. I do however flog the hell out of the car quit often. Also, during a hard launch the engine is at high RPM or climbing in RPM, during hard braking more than likely the clutch is in at the engine rpm is close to idle, you could have 2 psi of oil pressure at that point and it would hurt nothing.
I'll give you an example. When I was building Shepherd's engines he was having a lot of rod bearing problems. We figured out that he was decelerating on the engine and pulling the chute, so 11,000 rpm, huge negative G's and 0 oil pressure. The problem was fixed by simply throwing the clutch in.
Moving the pick up the back with some baffling is in fact a huge step in fixing the problem.
Your thought process on the g's and effect on oil pressure don't match mine. First off I don't hit the brakes hard enough to see 1g very often, that's a panic stop. I do however flog the hell out of the car quit often. Also, during a hard launch the engine is at high RPM or climbing in RPM, during hard braking more than likely the clutch is in at the engine rpm is close to idle, you could have 2 psi of oil pressure at that point and it would hurt nothing.
I'll give you an example. When I was building Shepherd's engines he was having a lot of rod bearing problems. We figured out that he was decelerating on the engine and pulling the chute, so 11,000 rpm, huge negative G's and 0 oil pressure. The problem was fixed by simply throwing the clutch in.
Moving the pick up the back with some baffling is in fact a huge step in fixing the problem.
whoever needs the pan send me an email at tscompusa@gmail.com I can get them for $580 shipped im almost positive. (AMS Moroso Pan)
It is a g force thing. If your forward acceleration exceeds .6g, then you can have this problem with the stock oil pan.
You can exceed .6g during acceleration whenever your trq gets pretty high, say anyhting over about 500ftlb trq can get you into this sort of acceleration realm. Additionally, being UNDER .6g accel and hitting a bump in the road has done the same thing in my logs.
Not turbo specific, but rather power specific related problem.
You can exceed .6g during acceleration whenever your trq gets pretty high, say anyhting over about 500ftlb trq can get you into this sort of acceleration realm. Additionally, being UNDER .6g accel and hitting a bump in the road has done the same thing in my logs.
Not turbo specific, but rather power specific related problem.
oops my mistake. I read the graph wrong for sure. But even at three tenths of a second pressure dip I would question if its even an issue. I am certain my car has been at these high levels of g-force for quite some time. And I havent seen any kinda a bearing damage or turbo failure from it. Ans all the turbos on the car were fed from cylinder head. I just donnt see where a momentary dip to 50psi is a problem.
Dave if it were a problem I would think it very bad business of you to sell go fast parts full well knowing all the fast cars would suffer engine losses after buying your high priced parts. And you admittedly have no desire to sell a fix for it. very strange business indeed.
Dave if it were a problem I would think it very bad business of you to sell go fast parts full well knowing all the fast cars would suffer engine losses after buying your high priced parts. And you admittedly have no desire to sell a fix for it. very strange business indeed.
The graphs is in minutes and seconds, the oil pressure on the log drops out at about 5.9 seconds and doesn't get stable again until about 7.6 seconds. In between it tries to recover and falls off again multiple times.
94awdcoupe, our parts aren't "high priced". I don't see the point in you turning this into a pissing contest. You read the log wrong twice. I am not interested in offering a pan because I've only seen damage I can connect to oil pressure on an EVO once or twice, I said I built a few pans custom at no charge. Check the fastest EVO's times and which engines are in most of those cars, NONE of them on the list have a modified oil pan in them and they stay together just fine. IF it were an issue that I felt the engines needed to have the pan to stay together I'd certainly be all over it. I am simply in this thread backing up what Robert said that there is problems with oil pressure under high g's.
94awdcoupe, our parts aren't "high priced". I don't see the point in you turning this into a pissing contest. You read the log wrong twice. I am not interested in offering a pan because I've only seen damage I can connect to oil pressure on an EVO once or twice, I said I built a few pans custom at no charge. Check the fastest EVO's times and which engines are in most of those cars, NONE of them on the list have a modified oil pan in them and they stay together just fine. IF it were an issue that I felt the engines needed to have the pan to stay together I'd certainly be all over it. I am simply in this thread backing up what Robert said that there is problems with oil pressure under high g's.
The graphs is in minutes and seconds, the oil pressure on the log drops out at about 5.9 seconds and doesn't get stable again until about 7.6 seconds. In between it tries to recover and falls off again multiple times.
94awdcoupe, our parts aren't "high priced". I don't see the point in you turning this into a pissing contest. You read the log wrong twice. I am not interested in offering a pan because I've only seen damage I can connect to oil pressure on an EVO once or twice, I said I built a few pans custom at no charge. Check the fastest EVO's times and which engines are in most of those cars, NONE of them on the list have a modified oil pan in them and they stay together just fine. IF it were an issue that I felt the engines needed to have the pan to stay together I'd certainly be all over it. I am simply in this thread backing up what Robert said that there is problems with oil pressure under high g's.
94awdcoupe, our parts aren't "high priced". I don't see the point in you turning this into a pissing contest. You read the log wrong twice. I am not interested in offering a pan because I've only seen damage I can connect to oil pressure on an EVO once or twice, I said I built a few pans custom at no charge. Check the fastest EVO's times and which engines are in most of those cars, NONE of them on the list have a modified oil pan in them and they stay together just fine. IF it were an issue that I felt the engines needed to have the pan to stay together I'd certainly be all over it. I am simply in this thread backing up what Robert said that there is problems with oil pressure under high g's.
I get that it is aerated. But its 90 psi oil pressure that drops to 60psi because its aerated. Its still 60psi film strength. 60psi = 60 psi whether its oil, water, air , or gas.
what about this? http://www.shop.kigglyracing.com/pro...8&categoryId=1
