>When Al was here, I measured his timing and found it at 50 deg. We
>thought we were crazy so did not change anything just did not talk
>about it.
>
>gene
>
Al and I had also advanced his distributor by hand while climbing up
a steep hill at about 5500 feet above sea level just before he left
for your place, but we didn't put a timing light on it afterward. We
just knew that it worked very well and that Al's Caspro EKE also
worked very well to prevent knocking, just as it did on my GMC. I
know that Al had told me that he had some knocking when he got down
to lower elevations.
Wondering out loud -- since Al and I both use a TBI system, perhaps
with the use of a TBI system the fuel mixture is kept at the proper
ratio; so, with the lesser amount of O2 at high elevations, perhaps
we are getting a lesser fuel charge than would be experienced with a
carb system at higher elevations. This might allow quite a bit more
advanced timing, together with increased performance at altitude. I
think that those using a carb system just expect it is normal that
performance suffers a lot when up at a 7000 foot elevation, as I did
before setting the timing this way.
A lesser fuel charge might also account for the high miles per gallon
that I experienced. I don't think that I ever got such good gas
mileage when towing a car, even when I owned the GMC in Michigan or
California and used it on level ground.
The point of my last message was not that the EKE didn't work, as it
certainly did work extremely well in preventing knocking. My point
was to comment on the great performance I got when using high
advanced timing at high elevations and that it was not possible for
me to get the same performance at lower elevations without retarding
the distributor down to the level recommended by Caspro with their
EKE instructions (12 to 14 degrees).
It appears that Al's experience is similar to mine.
If Jim Anstett is reading this, you might want to give us some info
on your setup. If I recall correctly from you at the Durango rally,
you are using a knock sensor which allows you to "dial in" your
timing and that you also are set at somewhere around 30 degrees BTDC.
Since you drive in the mountains of Colorado, perhaps we are on to
something here re high altitude operation.
Emery Stora
77 Kingsley
Santa Fe, NM
>thought we were crazy so did not change anything just did not talk
>about it.
>
>gene
>
Al and I had also advanced his distributor by hand while climbing up
a steep hill at about 5500 feet above sea level just before he left
for your place, but we didn't put a timing light on it afterward. We
just knew that it worked very well and that Al's Caspro EKE also
worked very well to prevent knocking, just as it did on my GMC. I
know that Al had told me that he had some knocking when he got down
to lower elevations.
Wondering out loud -- since Al and I both use a TBI system, perhaps
with the use of a TBI system the fuel mixture is kept at the proper
ratio; so, with the lesser amount of O2 at high elevations, perhaps
we are getting a lesser fuel charge than would be experienced with a
carb system at higher elevations. This might allow quite a bit more
advanced timing, together with increased performance at altitude. I
think that those using a carb system just expect it is normal that
performance suffers a lot when up at a 7000 foot elevation, as I did
before setting the timing this way.
A lesser fuel charge might also account for the high miles per gallon
that I experienced. I don't think that I ever got such good gas
mileage when towing a car, even when I owned the GMC in Michigan or
California and used it on level ground.
The point of my last message was not that the EKE didn't work, as it
certainly did work extremely well in preventing knocking. My point
was to comment on the great performance I got when using high
advanced timing at high elevations and that it was not possible for
me to get the same performance at lower elevations without retarding
the distributor down to the level recommended by Caspro with their
EKE instructions (12 to 14 degrees).
It appears that Al's experience is similar to mine.
If Jim Anstett is reading this, you might want to give us some info
on your setup. If I recall correctly from you at the Durango rally,
you are using a knock sensor which allows you to "dial in" your
timing and that you also are set at somewhere around 30 degrees BTDC.
Since you drive in the mountains of Colorado, perhaps we are on to
something here re high altitude operation.
Emery Stora
77 Kingsley
Santa Fe, NM
