[FC] Re: <VV> A Rampside Trip

[Diane Galli]

As you may guess, us UltraVan owners are somewhat watchful of Cyl head 
temps. I have a spyder dash in our Ultra, with the boost gauge replaced with 
another Cyl head gauge. The heads have been aggressively cleaned of flash. 
The lower shrouds are removed, and replaced with a flat piece of sheet 
aluminum bridging the gap from the engine case to the exhaust manifolds, 
with the air exiting to the rear, and through the gap between the manifold 
and the cyl head. Our temps run from 300-325 on 75-80 deg days, with 375-400 
on 100+ days. Our rig grosses at 5800 lbs. We have traveled 25,000 miles 
back and forth across the country in the past three years with this setup. 
Highest we have ever seen it was a few minutes at 410.
    There is no substitute for proper preparation for the removal of heat.
     The "spikes" you are experiencing sounds like an electrical problem.

      Bob
----- Original Message ----- 
From: "J R Read_HML" <hmlinc at sbcglobal.net>
To: "The Corvanatics list" <corvanatics at corvair.org>
Sent: Monday, June 06, 2005 10:44 AM
Subject: Re: [FC] Re: <VV> A Rampside Trip


> Well, yes I realize that and maybe I'm going to get used to seeing it at 
> 400.  But once it got past 400, I was getting needle bounce - sort of like 
> you get on a speedometer just before a speedo cable lets go.  THAT made me 
> uncomfortable as some of the swings were close to 50 degrees (of temp) and 
> I decided not to push quite so hard on the throttle.  I was mentally 
> averaging the swings when I reported "spikes" to 425.  The needle actually 
> momentarily (fraction of a second) touched 450 a few times.
>
> Now, the dash and the thermister have been in there less than a year and I 
> typically have only driven the Rampside on cooler days - when it was too 
> cool to be comfortable in a topless convertible.  So, I don't yet have a 
> great deal of experience with the current arrangement - especially not on 
> warm, humid days.
>
> I guess I'm just used to seeing more like 375 on the gauge and I began to 
> wonder if something was going on.  It is hard to hear the engine in a 
> Rampside even with the windows down.  But, I did not detect any ping or 
> other strange sounds, so drove on.
>
> Attachments (if any) are scanned with anti-virus software.
>
> Later, JR
>
> ----- Original Message ----- 
> From: "Ron" <ronh at owt.com>
> To: "J R Read_HML" <hmlinc at sbcglobal.net>; "VirtualVairs AA" 
> <VirtualVairs at corvair.org>
> Cc: "Corvanatics AB" <corvanatics at corvair.org>
> Sent: Monday, June 06, 2005 11:40 AM
> Subject: [FC] Re: <VV> A Rampside Trip
>
>
>> Don't forget that the temperature indication doesn't mean much in an 
>> absolute sense.
>> RonH
>>
>
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