cyl leakdown results
11-16-2010, 01:16 AM
#21
it will never be settled in a place where anybody can chime in...
theres no good way to separate people who know from facts vs people who know from somebody else telling them something that may or may not be correct.
and this goes for any debate that is multi sided for different reasons...
people think you should baby a new motor, but all the top engine builders and race teams all beat the living **** out if their engines from the first startup...
an engine may only last a season, but some of them turn 9000 rpm's for 6 hours at a time all season long...putting on way more revolutions than our cars see in 100,000 miles of daily driving. and the tear-downs at the end of the season are for research and study, not because they are broken engines... and they are usually super clean compared to almost any car out there....seems like the pro's have the right ideas and for some reason people still try to believe that you have to baby an engine?
11-16-2010, 01:24 AM
#22
I have ALOt of experience with this too. Years and years of it...cleanest engines i've ever seen were using Mobil 1, Dirtiest ring lands always on regular oil. Now I'm talking everyday driven street engine........not some fancy high dollar engine. I'm sure your results are good for you situation. But mine are from YEARS lots of um at dealerships and shops.
Synthetics don't coke up as quick or at all like regular oil can under extreme conditions like the tops of the pistons and ring lands go through. Its another reason turbo manufacturers reccomend sythetics so the bearing in the hot turbos don't coke and get full of carbon then fail.
Synthetics don't coke up as quick or at all like regular oil can under extreme conditions like the tops of the pistons and ring lands go through. Its another reason turbo manufacturers reccomend sythetics so the bearing in the hot turbos don't coke and get full of carbon then fail.
11-16-2010, 01:40 AM
#23
Pssst i don't use synthetic oil in my cars...I use regular yellow bottle Pennzoil. BUTT I also need to decarbon the pistons and cylinders every 10k miles. My experience using synthetics in the past has led me to stay away from them. BUTT I still have to say they keep a engine much cleaner in every day driving situations over years of service. One reason is the don't absorb moisture like regular oil does so engines that don't get run often can sit alot longer with out condensation being as severe a problem.
11-16-2010, 08:22 AM
#24
Very good info here. I appreciate all the advise. I will be pulling the heads and swapping lifters aswell as cam and was actually going to flush the oil a.few times aswell. The engine has 78k with prc springs so was planning on keeping them.
11-16-2010, 12:27 PM
#29
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yeah im sure its overkill. i was gonna say if the springs were high miles you could have had some float and slapped the cam with a lifter but if theyre new i cant imagine that would be the problem.
