[tcb] Re: Average head temps
- From: James Dwan <james_dwan_2000@xxxxxxxxx>
- To: tcb@xxxxxxxxxxxxx
- Date: Tue, 19 May 2009 18:14:27 -0700 (PDT)
Yep, I've noticed that the difference in temperature is an extra 50 degrees for
5 mph after 60. So 75 mph would probably be 450-500 in the afternoon. Might
have to move over to the middle lane...
--- On Tue, 5/19/09, w.wood <evil.scientist.boo@xxxxxxxxx> wrote:
From: w.wood <evil.scientist.boo@xxxxxxxxx>
Subject: [tcb] Re: Average head temps
To: tcb@xxxxxxxxxxxxx
Date: Tuesday, May 19, 2009, 4:52 PM
ha ha
just consider how much aluminum expands.. Valve seats, stellite or hardend
steel, are pressed into the head.
Aluminum melts at 1220F so you're still a way away from melting but that's one
of the main causes of dropped valve seats....
Also remember that the valve guides, bronze/silicone, also have different
expansion properties so if you run
your head at a high temp for a sustained period expect things to fall off.
To Chuck's point though, just drive it but also develop a profile of what your
engine's characteristics are
so that when you see it jump to 500F you can then say "this isn't right."
On Mon, May 18, 2009 at 9:13 PM, James Dwan <james_dwan_2000@xxxxxxxxx> wrote:
yep, I already had the "Woah 450 degrees!" on the way home and I was only doing
70. But it reminds me not to stay on the pedal as much.
--- On Mon, 5/18/09, chuck <sukchew@xxxxxxxxxxxxxx> wrote:
From: chuck <sukchew@xxxxxxxxxxxxxx>
Subject: [tcb] Re: Average head temps
To: tcb@xxxxxxxxxxxxx
Date: Monday, May 18, 2009, 7:16 PM
When Denis "built"Murray he wanted a cht gauge .I
told him to forget it because it would scare him to death.The oil temp is
enough.
oleblue
----- Original Message -----
From:
w.wood
To: tcb@xxxxxxxxxxxxx
Sent: Monday, May 18, 2009 4:04 PM
Subject: [tcb] Re: Average head
temps
I picked up a quad analog aircraft cht gauge a few months
ago. I'm still looking for the senders for it. Ratwell.com as
mentioned does have some info on CHT.
Here's a table I've referenced
recently. It sounds like you're in comparable range.
http://www.type2.com/rvanness/1600saga.htm#11
On Mon, May 18, 2009 at 10:08 AM, James Dwan <james_dwan_2000@xxxxxxxxx>
wrote:
Nope, I'll check it out. Thanks!
James
--- On Mon, 5/18/09, 71Westy@xxxxxxxxxxx <71Westy@xxxxxxxxxxx> wrote:
From:
71Westy@xxxxxxxxxxx <71Westy@xxxxxxxxxxx>
Subject: [tcb] Re: Average head temps
To: tcb@xxxxxxxxxxxxx
Date: Monday, May 18,
2009, 8:19 AM
Have you looked at ratwell.com? He has some notes about the DD CHT
there. One day I'm going to get one.
----- Original Message
-----
From: "James Dwan" <james_dwan_2000@xxxxxxxxx>
To: tcb@xxxxxxxxxxxxx
Sent: Monday, May 18, 2009
8:11:29 AM GMT -06:00 US/Canada Central
Subject: [tcb] Average head temps
So I got the DD CHT gauge wired up yesterday. I
couldn't get it to go to the "set up" mode. Does anyone
have
a Dakota Digital CHT gauge on the list?
Anyway it appears to be working fine, yanked out the
VDO gauges if anyone is interested in them lemme know. They
are the gauges only for oil temp and oil pressure.
Average temp was about 350 when about 60 mph but got up
to 404 in 4th going 80 with it floored. Are these average?
I
have never had a CHT gauge before.
James
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