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  #16  
Old 06-24-2013, 08:10 PM
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bigblok86ranger bigblok86ranger is offline
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Quote:
Originally Posted by twekd1 View Post
Its a standard pump. The pressure acts like the engine has 150k miles. Hopefully i will start to pull the motor tonight and get it to the machine shop where I can have it diagnosed and figure out where my problem is.


In my theory if i am pushing all the oil in the top of the motor, and running the pump dry at high rpms it would tear out all the bearings pritty quickly and cause the problem i am having, but its all just a guess until i can get it apart and see what is getting tore up.

has anyone here had to open up any oil passages or anything like that to get the flow of oil to the pan quicker.
You should have checked the level of oil in the heads to see if you may need some restrictors.

Quote:
Originally Posted by A70Maverick View Post
I find it hard to believe your sucking a rear sump pan dry at 5,600 rpm with a stock pump. I'm guessing there's another issue here.
X2! I ran that same oilpan for over 8 years on my 466 and wound that thing to 7500rpm's more than a few times with zero issues, matter of fact when I sold the engine I pulled the pan and checked the bearings and they were good as new with well over 2000 quarter mile passes and probably 50,000 street miles.

I used a M84DHV oil pump also with that pan the entire time I raced it.

Quote:
Originally Posted by twekd1 View Post
I have a feeling this is why the original motor blew up also (same pan)

Still waiting for an answer from the machine shop. To my knowledge the machine shop is the best guy around MPD performance. Its is an honor to have the master Fred Mandoline work on my scrap, he is usually working on blown alcohol funny car engines tho, I hope he can help with my junk.

What is a good pan to use that will fit in a fox body mustang?
(I am thinking already I will have to cut my k member and weld in something new to clear the new pan)
The Moroso 20625 is a nice piece and what I am using on my 523.
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  #17  
Old 06-27-2013, 04:12 PM
twekd1 twekd1 is offline
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well it looks like my motor was a mess.
to start i had closer to 12.5:1 compression
the cam was causing too much cylinder pressure
something happned with the pushrods and the guide plates and they were all chewed up.
also from the motor sitting for so long somehow water got in 1 cylinder rusting the bore and sticking up the rings.


The motor is getting redone, new bearings, rings, solid roller cam,
hopefully it holds tougher this time
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  #18  
Old 06-27-2013, 04:14 PM
twekd1 twekd1 is offline
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its also getting dyno tuned before i get it back
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  #19  
Old 08-23-2013, 09:32 AM
twekd1 twekd1 is offline
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Well here ya go. It blew up because I am an idiot and the pushrods were not hardened and the guide plates ate them up also i used cheep oil.

here is what all the pushrods look like:
http://www.flickr.com/photos/13359133@N05/9577627670/

it took out a lobe on the cam too:
http://www.flickr.com/photos/13359133@N05/9574826229/
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  #20  
Old 08-23-2013, 09:57 AM
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Ah bummer man. Thats quite unfortunate! Lesson learned tho right lol

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  #21  
Old 03-29-2014, 09:50 PM
Anquia Anquia is offline
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It all has to do with the fuel injection system, actually. THe more throttle, the more fuel and higher RPM's. Therefore, if you jerk the throttle too hard foward, You're putting in too much fuel at low RPM's, thus causing a fire in your engine. If you jerk the throttle too hard backward, you're not letting in enough fuel at High RPM's, causing a flameout.
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