The Ford Barn

nkaminar · 10-11-2022, 05:28 PM

It is recommended to leave the tray in the Burtz engine because the big end of the rods create an oil fog that helps lubricate some of the engine parts. I am not sure that is true but I left mine in. I am considering drilling small holes (1/16 inch) in the bottom of each tray so that the oil completely drains out during an oil change. Don't do that with a stock engine as the oil in the tray provides instant lubrication for the rod bearings on startup.

Lawrie · 10-11-2022, 06:51 PM

Dont drill any holes, take it from me
Lawrie

SonicRaT · 10-11-2022, 07:21 PM

Quote:

Originally Posted by Synchro909

Lawrie, I considered a 3.54 gear set with my Burtz engine and decided to wait. I'm happy I did. In fact, I am beginning to question whether I need the O/D at all with the new engine. It revs so freely and smoothly that if I were cruising at say, 55 mph in O/D, the car is now happy in ordinary 3rd gear and "singing" in a higher key at that speed. I have a virtually new 3.54 set on the shelf and if I don't use them in another of my cars, they will likely sit there for who knows how long.
How strong an engine? There have been a couple of times when I have forgotten to take the car out of O/D when I stopped and taken off in high first with the camper behind. Sure, it didn't make my cheeks go baggy when I pressed the accelerator but it did it. That engine was not as powerful as the one in your P/U but might have had more grunt t the bottom end.
A 3.54 diff and O/D is a pretty high ratio - about the same as using 5.25X21 tyres on the rear of a 3.78 diff. I run that on my tourer and it gallops along. Your engine will handle it easily.

I ordered the O/D before I ended up with a Burtz Block. I've put about 1600 miles on the Block now and the O/D just arrived. If I had the block first, I most likely would not have gone the O/D route. The vast majority of the time I'm under 55, and the Burtz easily runs the higher speeds when I need it. I also run a synchronized v8 transmission with a CLING's adapter, so my 2nd gear is already just about perfect, making the O/D even less useful to me now.

It's here now though, so in it goes.

updraught · 10-11-2022, 09:13 PM

If I remember right the Burtz is engineered for a sustained 112 mph.
If you have some of the Comp V tyres they are good for 149 mph so I guess you need to be careful.
A lot of the oiling in an engine is done by spash.

10-11-2022, 05:28 PM	#21
nkaminar Senior Member Join Date: Jan 2012 Location: Western North Carolina Posts: 3,906	Re: Mitchell overdrive It is recommended to leave the tray in the Burtz engine because the big end of the rods create an oil fog that helps lubricate some of the engine parts. I am not sure that is true but I left mine in. I am considering drilling small holes (1/16 inch) in the bottom of each tray so that the oil completely drains out during an oil change. Don't do that with a stock engine as the oil in the tray provides instant lubrication for the rod bearings on startup. __________________ A is for apple, green as the sky. Step on the gas, for tomorrow I die. Forget the brakes, they really don't work. The clutch always sticks, and starts with a jerk. My car grows red hair, and flies through the air. Driving's a blast, a blast from the past.

10-11-2022, 06:51 PM	#22
Lawrie Senior Member Join Date: May 2010 Location: Qld, Australia Posts: 4,223	Re: Mitchell overdrive Dont drill any holes, take it from me Lawrie

10-11-2022, 09:13 PM	#24
updraught Senior Member Join Date: Feb 2015 Location: Australia Posts: 1,972	Re: Mitchell overdrive If I remember right the Burtz is engineered for a sustained 112 mph. If you have some of the Comp V tyres they are good for 149 mph so I guess you need to be careful. A lot of the oiling in an engine is done by spash.