[DeTomaso] CR, Detonation, and water injection

[Doug Braun]

Jack,

	I had the same Spearco system on my 70 MACH1 and had the same durability
issues as you did.  The aluminum jet disintegrated and the motor gave up.
The system did as claimed though in preventing pinging.

Doug Braun
blue 73L #5505

-----Original Message-----
From: detomaso-bounces at realbig.com
[mailto:detomaso-bounces at realbig.com]On Behalf Of JDeRyke at aol.com
Sent: Wednesday, October 03, 2007 12:55 PM
To: jab at cisco.com; adin at frontier.net; detomaso at realbig.com
Subject: Re: [DeTomaso] CR, Detonation, and water injection


In a message dated 10/3/07 11:55:37 AM, jab at cisco.com writes:

> What kind of systems? :)  Got any info?
>
My well used system was made by George Spears of Spearco, meant for turbos.
Before the Pantera, I had a throughly hot-rodded Corvair- air cooled. Its
10:1
cylinder heads got hot enough to cause aluminum to turn to mush. The Spearco
had 3 problems: first, the control unit had an in-line jet made of aluminum.
CA
water corroded the aluminum jet closed in 2 months. I made a brass jet but
drilling the required .020" dia hole was no walk in the park. And adding
isopropyl alcohol as anti-freeze in the winter was always a chore, as was
remembering
to fill the water tank every other gas fill-up. Second, after 2 years, the
pump integral to the 2-gallon poly water tank literally fell apart; the
assembly
cost (at that time) $55. And finally, the 'brain' momerntarily failed during
a wine run- the tank emptied in two blocks even though we were running at
low
speed. Guys behind me said they needed windshield wipers on to clear the
vapor
coming out of my exhaust! Never did figure that one out and it only happened
once, but I was afraid of hydraulicking the engine, so it went on the shelf.
FWIW- J DeRyke