Guest nevarmore Posted June 17, 2004 Report Share Posted June 17, 2004 Felt this was a new topic, so here we are. Originally posted by Desperado: I am trying to figure out why the idea of painting the inside of the motor is a wiseass idea. It IS done, alot. It is sujested that the interior of high perf motors be cleaned up, the casting flach all be removed and the drainback holes enlarged then the interior be painted with a couple of coats to smooth the surfaces to assist in the drainback of oil into the pan.Really? I was being a wiseass, I was going to use that as a lead in to another lame joke about interior and exterior paint being different. How high performance are you talking; "I'm building my own motor and this is something to do while I'm waiting for a part to come in" OR "I just spend $50,000 on a motor that could get me $500,000 in sponsorships and painting the inside is worth it."? Quote Link to comment Share on other sites More sharing options...
still2hi Posted June 18, 2004 Report Share Posted June 18, 2004 graemlins/popcorn.gif Quote Link to comment Share on other sites More sharing options...
recklessOP Posted June 18, 2004 Report Share Posted June 18, 2004 every little bit helps... Quote Link to comment Share on other sites More sharing options...
Tinman Posted June 18, 2004 Report Share Posted June 18, 2004 One thing to consider, painting the lifter valley of a v configured engine is often done to decrease oil drainback time. The smooth surface of the paint allows oil to flow back to the pan much faster. But what most people don't think about is how the lifter valley acts as a oil cooler, As the oil flows down the lifter valley heat is extracted from the oil to the block and then to the coolant in the water jackets. Decreasing the time the oil is in contact with the lifter valley increases the oil's temp. Acceptable in a drag racing engine but not in a street or road race engine. Quote Link to comment Share on other sites More sharing options...
nurkvinny Posted June 18, 2004 Report Share Posted June 18, 2004 I've painted several of my own, and helped with a few people's. I considered the increase in oil temp, but since I have always used 2-3 qt. larger-than-stock oil pans, I think the increase in volume more than makes up for it. Plus, it looks so damn sexy. tongue.gif Quote Link to comment Share on other sites More sharing options...
Doug1647545489 Posted June 18, 2004 Report Share Posted June 18, 2004 Originally posted by NurkVinny: Plus, it looks so damn sexy. tongue.gif uhh how do you see it? Quote Link to comment Share on other sites More sharing options...
Mensan Posted June 18, 2004 Report Share Posted June 18, 2004 The inside of cast iron blocks have historically had alot of problems with pieces faling off, and into the oil. Not sure about more modern engines, but I know almost all old school racers used to paint the inside to keep debrit from making its way off of the metal and into the oil. Quote Link to comment Share on other sites More sharing options...
Guest nevarmore Posted June 18, 2004 Report Share Posted June 18, 2004 So would sanding it smooth serve the same as painting it? Originally posted by Doug: uhh how do you see it?If you have to ask you aren't cool enough to look at it. Quote Link to comment Share on other sites More sharing options...
nurkvinny Posted June 18, 2004 Report Share Posted June 18, 2004 Originally posted by Doug: uhh how do you see it?Everytime I have the engine apart... which has been very often recently smile.gif BTW, nice sig. Dick. smile.gif Quote Link to comment Share on other sites More sharing options...
iwishiwascool Posted June 19, 2004 Report Share Posted June 19, 2004 http://www.columbusdsm.com/resources/show_n_tell/red_crank/Dscn6192_200x150.jpg cuts through the oil like butter Quote Link to comment Share on other sites More sharing options...
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