2017 gt350 engine failure

[TDC]

That higher pitched tick sound sounds like it is coming from the accessories because I could be wrong here but it has a higher frequency than the motor rpm. Then again maybe valve train.

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[HoosierDaddy]

I'm not going to search, you are the one making the assertion that its likely the OPGs, not me, and are saying there are other documented cases.

I'm not going to do the legwork to back up the claim you are making, lol. I will simply call it what it is, speculation until proven otherwise.

Unless you do the legwork, your are only speculating that he is speculating.

 

[Zombo]

In the video below, at ~18:40n Eric Ladner (sp?) states that "We have a new oil pump, with a higher pressure than we conventionally run to deal with the higher engine speeds."

Question: If the OPGs are the same between the 5.0 and 5.2, how is the higher pressure Eric mentions generated?

[ame]

 

[Hack]

Question: If the OPGs are the same between the 5.0 and 5.2, how is the higher pressure Eric mentions generated?

A positive displacement pump pushes a fixed volume of oil. The resultant pressure is created by the viscosity of the fluid, the bypass or pressure relief valves and the restrictions in the system (engine). To get higher pressure you could change any of those three things. I would assume the pressure relief valve would be the most likely thing to change between the Coyote and Voodoo.

 

[Varekai]

That higher pitched tick sound sounds like it is coming from the accessories because I could be wrong here but it has a higher frequency than the motor rpm. Then again maybe valve train.

I didn't have the AC running

 

[Varekai]

Amen!
I have a Primo ceramic grill. Best grill I ever had! Man I need a steak!

I was looking at a Komodo ceramic grill, Sams club has them on sale. Honestly tho, I make my best steaks on a cast iron skillet and then finish in the oven. Can't beat a good bone in Ribeye.

 

[mustang1]

A positive displacement pump pushes a fixed volume of oil. The resultant pressure is created by the viscosity of the fluid, the bypass or pressure relief valves and the restrictions in the system (engine). To get higher pressure you could change any of those three things. I would assume the pressure relief valve would be the most likely thing to change between the Coyote and Voodoo.

the pressure relief valve spring appears to be a heavier gauge steel

 

[Hack]

the pressure relief valve spring appears to be a heavier gauge steel

Interesting.

It's probably the main difference that impacts pressure in the system.

 

[mustang1]

I read that an oil pump should make about 10 psi for every 1000 RPM. I don't have an oil pressure gauge on my car to know what it is doing. Voodoo has heavier oil and and a much higher red line. So the heavy duty spring would make sense. Some of the S/C GT engines are tuned to almost the same red line and making more heat. On (potentially) lower oil volumes, and thinner oil.

 

[Voodooo]

I was looking at a Komodo ceramic grill, Sams club has them on sale. Honestly tho, I make my best steaks on a cast iron skillet and then finish in the oven. Can't beat a good bone in Ribeye.

Ok wtf.
Post your address. I'm coming over!

 

[Hack]

I read that an oil pump should make about 10 psi for every 1000 RPM. I don't have an oil pressure gauge on my car to know what it is doing. Voodoo has heavier oil and and a much higher red line. So the heavy duty spring would make sense. Some of the S/C GT engines are tuned to almost the same red line and making more heat. On (potentially) lower oil volumes, and thinner oil.

That rule of thumb applies to older engines. The modern Fords have a lot higher oil pressure. I think it's because the TiVcT system uses high pressure oil to advance and retard the cams.

 

[AceOne]

OEM 5.0 and OEM 5.2 OPG are the same!

Interesting.

It's probably the main difference that impacts pressure in the system.

The OPG are the same in both pumps. They have different housings and the pressure relief spring is the difference in the pump pressure. I have built the 5.2L CPC engine with the stock Voodoo internals. I have both a Coyote 2nd Gen from my 16 GTPP that I run in the Optima USCA events and other events. I have the OPG from the 5.2L Voodoo on my bench. I installed 4340 steel opg in mine just for possible increased reliability since I want the motor to last under full Road Racing conditions and possibly turn 9K rpm when needed. I have "mic'ed" the gears and I have talked extensively with FRPP and one of the Ford Engineers that worked on the Voodoo/ Coyote 5.2XS motor development.

Following is just food for thought:
The other difference you need to account for the difference in pressure is the oil viscosity difference in the two engines (mostly at cold temps). One is 5W20 and the other is 5W50. Both are 5W for cold temps but it could effect the pressure on the pump gears while the motor oil is still cold.

One other difference in the pressure is due to the oiling of the top of the motor. 5.2L heads have oil restrictors in them for each cam bank. Ford has you install different oil restrictors based on which Oil Pump you are running since they have different operating pressures because of the relief springs being different in order to run higher oil pressure in the higher revving Voodoo motors.

The Ford Performance 5.2XS CPC motor does come with the CJ Oil pump Gear set which is stronger than the OEM OPG. If it ever becomes available. I do not know who make the CJ OPG or the material used though but I am assuming 4340 but it could be 9310. I have not followed up on that since I have already bought my OPG.

 

[superman07]

I like how in the beginning you imply that you don't "rag" on your car like that's how engines fail.

Ive redlined all my cars from day one and never had a single motor problem. Hope your issue gets resolved

then you apparently have never tried to pump this thick ass oil at 40 degrees with a piece of crap sintered OPG.

I NEVER, EVER, EVER go above 4 k until i am at 160-180 or higher. At 40 degrees and 6k plus your oil pressure was probably over 150 psi. When I get the TSS gears I will breath easier.

 

[superman07]

GT350 cold testing

I guarantee you they didn't start that motor cold and wrap it out.

 

[superman07]

I wouldn't be terribly surprised if they put out a TSB with a tune that brings the limiter down from 8000rpm to something more sane like 5000rpm when the oil isn't up to temperature. I think this is, what, at least the second if not third report on this forum of a likely OPG failure from not being warmed up.

I thought the stock tune cut power and until warm, but it was just some crap on the internet.

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