Boost detection

[sdbartho at cca.rockwell.com]

lusky at knuth.etc... writes:
>Seems like a lot of trouble when all you need is a hobbs switchs.

I wanted to try to use something that was already there. The aftermarket
kits use a hobbs switch, but it requires cutting a tube and installing a
fitting, and I really didn't want to hack anything up. Maybe I can find a
test guage plug somewhere.

>> Anyone have any pump recommendations? I need pump capable of at least 80 psi,
>> and I would prefer a high volume unit as well.
 
>80 psi at what volume?

All I can get. :)  Actually, I'm still trying to find out the specs from the
Syclone guys. There is an aftermarket kit out that basically parallels two
stock units, with the second pump being activated at 14 psi by the hobbs.
I want more volume capability and I think I can find a stock pump from some
other vehicle much cheaper. The only question I have is finding a pump that
can keep up with 19 psi boost.

>O2 sensors are pretty much useless except at idle and cruise.
They can give you at least a binary rich/lean indication, which is better 
than nothing. As far as telling you "how rich", I can't say I really care.
Sure, it would be nice to have a perfectly linear device that would allow
you to have some sort of an accurate tuning equation, but I can live without
it. 

I heard the 4-wire heated sensors were closer to being linear. Comments?

Dig
sdbartho at hwking.cca.rockwell.com