madracer402

Already did first oil change (ran it thru a 5 heat cycles ) and 10 miles and it was fine and ill do another one at 200-500 miles but at the rate i drive it it could be a year lol... waiting to hear from my tuner as to why im getting p0420 and 30 codes and it dieing at every light ..

SlowDude

iTrader: (4)

You sure you used a high volume pump? That usually doesn't mean high pressure. My KaTech high vol pump pressure runs 55-60 cold and drops to around 32-36 psi at idle when warm or at operating temps of 180 - 200 degs. ( I have a 160 deg stat.) I get a solid 41-43 psi when driving normal but the pressure doesn't really increase when I am getting on it. I also had all the oil return and oil feed ports to bearings enlarged and chamfered to help the oil get back to the pan. High volume oil pumps are useful for engines that require more volume (not necessarily with more pressure) More pressure or to much pressure rather causes heat and drag on the engine and could do more harm to bearings than good. All an all, I'm happy with that KaTech. I also run 5w30 Penzoil Ultra Platinum after I broke in the motor. What oil and weight are you using?

madracer402

Yeah it a high vol pump. I didnt want or need high pressure... im running rotella 15w-40 petroleum for the first two oil changes (next at 400-500 miles) and the going to royal purple ..

bobfig

dont go royal purple just do pennzoil platinum

SlowDude

iTrader: (4)

I wouldn't go to any full synthetic till after 3000 - 5000 miles. I did use Royal Purple from 10,000 - almost 200,000. No issues. Only thing was that the inside of the motor was coated with a weird film.. Prolly what protected the motor. With today's tight cleareces there is a reason to use 5w-whatever. js.