Running-in /Maintaining B20VTEC motor

thats good advice..rep ya!

i work on trucks but its basically same concept, we do heaps of engine rebuilds probably 50 every 6 months, how we can it it is,,,, we actually complete building the motor, its still on the stand, have a test bay hook everything up, run it in around 1500 revs for 45 minutes, and change the oil, engine rebuilders should have warranty on them, the myth of running it in for 1000 odd kms is a load of bullshit, unless your engine rebuilders are dodgy,

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Originally Posted by JasonGilholme

ask your engine builder. If they're good they will be able to tell you all of this information easily.

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Originally Posted by GSi_PSi

i want to knoe what other people have done, so i can find the best information.

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Originally Posted by JasonGilholme

The reason i say ask your builder is because then if anything happens you can just say i was doing what you told me to do. :thumbsup:

It is a big question though, with two prominant answers. I do believe in the low RPM + WOT approach is the best.

Everyone knows the two known "running in" process, but..............if you wish to have some sort of warranty, just ask the builder as said.

Its very well to ask a forum for ideas but when the shit hits the fan, no one will care. Sorry but it has to be said!

Id say drive it normally and hit WOT occasionally and change oil at 500km and at 2500km. But thats me!

"Ask the builder"!