Here we go again? Roush

[greg schroeder]

Originally Posted by 209

Someone needs to explain to me why Roush 427w crate engines eat so much oil? Mine is #795 and up to 4000 miles used 2 qts per 1000. The last 500 used 2 qts. Back to the installer for warranty work and he discovered #7 and 8 with verticle scoring in those two cylinders only. Back to Roush and it's been about two months(guessing). I'm no expert but it seems these motors aren't highly stressed even though it's over 500 hp. How hard is it to build a motor and have the rings seat? Apparently kinda tough. Has anyone heard of Craft's motors puking oil? Seems Craft will get my money next time! 209

I think if you put enough engines out there with enough people abusing things you'll get some failures. Not sure why yours would do this, but generally improper break in and pushing the engine cold cause issues. How many people pick up their car and drive off cold and hammer on it? Plenty. You see guys claiming it's fine to run 91 octane fuel all the time too. We read about brand new engines going right to the chassis dynos from installers or even at the installers. I just don't get it, but hey? if Roush wants to pay for foolish use I give them the thumbs up.



The 427R I had used little to no oil and it made about 75 to 100 more wheel HP more than most other installs of the same engine. I sold the car with 10,000 miles and it's still fine at 13,000. The trick is to break the engine in properly and warm the engine and oil after break in before any spirited driving as well as to run the appropriate fuel for the build.