Vance,
Thanks, makes perfect sense. I should definitely change oil more often
based on this info.
Regards,
Vic Snively
'75 TR6 w/AC
In a message dated 4/9/2010 10:23:13 AM Eastern Daylight Time,
vance.navarrette@intel.com writes:
Vic:
It is probably not your imagination. Running a cooler than stock
thermostat is a racer's trick to increase power. Since the intake manifold is
at the
coolant temperature, installing a 160 thermostat effectively reduces the
temp of the incoming air, rendering it denser and therefore containing more
oxygen. This allows you to burn more fuel and create more power - all other
things being equal.
My hero, David Vizard (an Englishman by the way) has written many books on
engine tuning, and mentions this regularly as a tuning trick. The downside
(and there is always a downside) is that the engine oil runs cooler, and
so collects more acids that shorten engine life. Also, if taken to extremes,
the oil never warms up enough to achieve optimum lubricity - increasing
wear and reducing economy.
The downside can be partially mitigated by frequent oil changes to remove
the acids and combustion products that would otherwise be driven off at
higher temperatures.
Cheers,
Vance
Vance Navarrette
Knowledge is power.
Power corrupts.
Study hard, be evil.
http://www.triumphowners.com/832
-----Original Message-----
From: 6pack-bounces@autox.team.net [mailto:6pack-bounces@autox.team.net]
On Behalf Of Vsnively@aol.com
Sent: Friday, April 09, 2010 5:55 AM
To: trguy@cfl.rr.com; tr6taylor@webtv.net; 6pack@autox.team.net
Subject: Re: [6pack] Temp Gauge Question
Jim,
I concur Dick's findings. I run a 160 and the needle indicates typically
on
the second mark, in hot weather it will reach center. The 180 typically
indicated center to the next-higher mark. Mine seems to run better with a
160.
Regards,
Vic Snively
'75 TR6 w/AC
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