Questions About Mantaining And Driving A Forged Motor

[32vspec2gtr]

For bedding an engine in have a look at what the top fuel guys do. They build the car, roll it out of the work area, put it on stands and then crank it till oil pressure is there, then start it and nail the engine about 3 times to full throttle (enough to lift both you, the rest of the crew and the car while trying to stop it from rolling on its side, truely awesome experience to do) then quickly check gears and stall it. then its shut down, oil drained and taken to the strip.

As for what we do at work (diesel fitter) its run shit mono oil, throw the truck straight onto the dyno and run it at full noise, full load at different rpm and get it really hot. Then drop the oil and tell the customer to get a trailer loaded with as much wieght as possible and haul shit out of it. Change the oil at 10000km and filters and should be good to go.

Hope this helps Matt

[r33_racer]

Im not saying to do a burnout as a breaking in method, its just what I did very shortly after building the motor. I wasnt exactly caring about it during the break in proceedure. As I said, if done right the break in is always over very quick. The burnouts werent big arse bouncing off rev limiter ones either. More like a mild 50m line lock up the street trying my hardest not to touch the limiter. Im not a fan of limiter hitting with std pumps and short drive snouts.

Anyway my point is, best way to break in a new motor if its built right is pretty well just to give it shit straight off. If you baby it for too long you will never get a good ring seal and it will always use a little oil and never be as good as it should have.

[TiTAN]

N1GTR, i downloaded it off the internet. im sure you can find them if you look.

National.Geographic.Megafactories.Lamborghini.HDTV.XviD-YT

National.Geographic.Megafactories.Audi.HDTV.XviD-YT

there are probably others but i am not sure of the exact names.

[N1GTR]

Sweet as, thanks

[Harey]

Cool.

I found the article I was thinking of too.

http://www.mototuneusa.com/break_in_secrets.htm

Thanks for the link! Very interesting.

[KiwiRS4T]

Doný know about "modern materials" - I was given similar advice by a very well qualified motor engineer about 30 years ago after he recond my engine. He said to go wind it out in third gear (pref uphill) and then take foot off til it slows down and repeat. He said it wold be run in in half an hour. Only warning was to watch oil pressure and temps and if OK give it heaps ...Ive done that ever since with motors I've built.

[Duncan]

haha I don't think I'll take running in tips from a sport where a 60 second engine life is considered good

personally I start it, warm up the water, then take it for a hard drive a low but not no boost. revs up to about 5000 and as much load as possible without labouring it. 50klm then drop the oil.

new mineral oil in then either 2-300klm of road driving (as above, medium revs, low boost, as much load as possible) or on a dyno 100klm. dyno is much more repeatable than having to deal with traffic/speed limits/road conditions.

then tune it. drop the oil and race it. I've never had a problem with ring sealing (plenty of other problems lol)