Quote:
Originally Posted by Tom Vaught
Just My Opinion. Take a look at the Plumbing on the Butler/Quillen 63 Tempest engine.
Might be hard to see but what you have going on is:
There are LARGE braided lines coming from the oil pan and going to the rear of the valve covers. On the other end of the valve coves are lines going to a large Puke Can with multiple air filters.
This is the way that it works, IMO.
Oil and methanol are mixed by the combustion process/ windage from the crankshaft.
The oil and methanol mix is under pressure in the crankcase and needs to get out of the engine.
The large lines from the pan to the rear of the valve covers transports the oil and methanol mix up to the valve covers.
The oil (being heavier) falls out of suspension in the air flow passing thru the valve covers and collects in the valve covers.
The methanol and air being lighter continues out of the valve covers to the puke tank.
The methanol falls out of suspension in the puke tank and the air then exits through the air filters to atmosphere.
This whole process keeps most of the oil in the engine, collects and removes the methanol from the oil and stores it for disposal, and relieves the pressure in the crankcase/ heads. ALL GOOD THINGS.
Tom Vaught
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Thanks for the info, I was looking at pictures of that engine the other day but couldnt see the lines coming from the oil pan. Makes sense now.
These turbo's should still be able to produce 1800-2000hp. If I built new headers to re-locate my waste gate what problems would excess back pressure cause? They have the .96ar housings on them.
I took the engine apart tonight and found a torched head. Looks like it cut a small hole into coolant passage on the #6 piston. I believe that has been repaired in the past so I'm guessing it hadnt been heat treated. I'll fix it and put them back on a N/A engine. They held 1300hp so I'm sure they will be fine with a good tune in a N/A application.
One thing I noticed was a discolored ring about 3/8" around the top of the cylinder wall. It feels like there is some texture to it and its orange in color. Is that from the copper head gaskets? All the plugs looked good before the damage happened. Today I went through them with a magnifying glass and couldnt see any spec's of metal like what is in the cylinders. I looked at the pistons really closely and they look fine, no damage showing on the tops.
Pistons are .005" out the hole with a .081" head gasket.