Re: turbos

Rick Johnson

2009-02-25

Technically a turbo can accurately be thought of as a centrifugal
muffler (although that is not its primary purpose). And it does have
bearings.



But seriously, as someone with experience building racing turbo charged
engines my opinion is that turbo warm up requirements are no different
than that of the rest of the engine. If the turbo oil system is
properly designed in the first place there is no reason prolonged
idling is going to make any difference.

Rick Johnson

Bend, Oregon

"I'd rather eat domestic salmonella than Chinese melamine."






Brian Mitchell wrote:
One of my friends also told me that the muffler bearings
need to warm up a bit so that they don't seize up.  Considering the
large aftermarket muffler, I would assume that it contains more muffler
bearings, so would need to warm up longer.


On Feb 25, 2009, at 6:20 PM, Like toPedal wrote:






a friend of
mine builds drag racing Subaru WRXs and Toyota Supras. i asked him and
he said

"The primary reason
you want to let the car warm up is so that you make sure you have
sufficient oil in the turbo.  Its not really a requirement, but I never
drive any of my turbo cars without letting them get up to operating
temperature.  Oil starvation can lead to premature wear of the bearings
and shorten the life of the turbo.  You don't really "have" to warm it
up, but its a good thing for people who actually care about their cars."




so your neighbor might drive his drag WRX to work everyday....and he
needs that turbo to last






_______________________________________________

OBRA mailing list

obra@list.obra.org

http://list.obra.org/mailman/listinfo/obra

Unsubscribe: obra-unsubscribe@list.obra.org









_______________________________________________
OBRA mailing list
obra@list.obra.org
http://list.obra.org/mailman/listinfo/obra
Unsubscribe: obra-unsubscribe@list.obra.org