highgmc

how many miles is everyone here putting on their fresh ls1's before letting it rip at the track?

mti recommends 1000 miles, is that a bit much?

2001 Pewter WS6

iTrader: (43)

1000 miles... I have put that many on in 1 1/2 years. Jump on it and seat those rings.. Put standard 10w -30 oil in now. Change the oil after you get in dynoed with thge same standard oil. No synthetic and change it again after your drive home. It should be good to go by then. If you need some one to break it I mean break it in, give me a call... I would love to take that beast for a trip down the track...

highgmc

wait until I make a few runs then you can give it a run. haha

Slowverado

did you say no NO SYNTHETIC OIL? with a new motor? just curious as to why not to run synthetic if that is what you are saying.

theblur98ss

iTrader: (71)

Sounds like your getting anxious hehehe. I plan to do 500 miles, change oil then let it rip. Should be picking up my motor tomorrow.

GeorgeC

The rings should effectively be seated after 15-20 of initial run time. Change the oil, and head to the track. Make a couple of really easy passes, make sure everything's as it should be afterwards, then let it rip!

If the engine's built right (which I'm sure MTI builds them right), there should be very little break-in required. I don't think Warren Johnson puts 1000 miles on one of his Pro Stock mills before hitting the track!

highgmc

George, that sounds more like it to me!

when will yours be done Brad?


they recommend non synthetic for break-in then changing to synthetic after break-in.

2001 Pewter WS6

iTrader: (43)

The synthetic is too slippery and does not allow the rings to seat. Seating the rings is a wearing down process where the cross hatch of the cylinder walls acts like a file on the rings to make a perfect fit. The cross hatch wears down and the wall becomes smooth. Synthetics are too slippery and do not allow that rings to get seated (Filed Down). I hope this explains it. The first 20 miles are critical to seating the rings. Make some wide open bursts to build pressure and force those rings on the cylinder walls.

Coach 02 A3 Z/28

iTrader: (10)

15 to 20 minutes run time. Change the oil(I use 10w 30 and I change the oil & filter every weekend of racing). Hit the track!

Coach