twisted mentality

Anyone else had a problem with Ultradyne camshafts rounding off the lobes on a flat tappet camshaft ?

birdog

Everybody is having this problem. My engine builder wont warranty them AT ALL. Made me switch to rollers

jpclear

The EPA made the oil manufacturers take all the best anti-wear stuff out of street oils recently. You need to use a "not street legal" oil in your flat tap marine engine that is loaded with ZDDP. NASCAR runs flat tap engines for over 500 miles at around 9000 rpm and they live cause they have the right oil blends. (among other things, but it is the oil that saves the cams.) --- Jer

formula31

I visited nearly all the "auto" stores around me yesterday and didnt find one oil I could define as having the good stuff in it. I ask and no one seemed to know. Is getting oil for our flat tappets gonna be special order now?

jpclear

Any NAPA store will order Valvoline 20W/50 Full Synthetic Racing "Not For Street Use", pt.# V V-855 for you. (use pt.# V V-851 for the less expensive semi-synthetic) They don't want people picking it up for their cars cause it messes up the cat. converter; so you don't see it on the shelves. My local guy keeps a few cases in the back room for us boaters. But for the very best stuff go to www.joegibbsracingoil.com and focus on their 10W/30 or 5W/20 for our application. And yeah; I expect that oil for HP flat tap motors with higher spring pressures is pretty much gonna be a special order situation. --- Jer

US1 Fountain

iTrader: (1)

wow, I did not know this.

Would this oil work for the roller cam motors, or is it to 'slippery'?

jpclear

Roller cams LOVE it! --- Jer

rmbuilder

Here is the product on the Valvoline website. Be careful that when you purchase it they don't give you the (more common) VR-1 20/50 in it's place. Many sales personnel are not aware that Valvoline even offers the full racing synthetic. NAPA seems to be the most likely place to find it.
http://www.valvoline.com/pages/produ...asp?Product=95

No matter what oil used I have always used this product for the initial startup of every engine.
http://www.sdpc2000.com/catalog/1016...oz-Bottle-.htm

Combine the EOS with a quality motor oil, pre time the engine, keep the run in speed @ 2000 RPM and watch your pushrods to be sure they are turning. This will greatly reduce the chances of cam/lifter failure due to lubrication issues. This will not insure against failures related to materials, the only way to control that is by core/lifter selection.
Bob

formula31

How about dyno oils? Id prefer them since I have increased my cooling capacity this year.

rmbuilder

For dino
http://www.valvoline.com/products/Sp...ing%20Oils.pdf
For synthetics
http://www.valvoline.com/products/Sp...ing%20Oils.pdf