Another old message from the Cd.

Avail from: J&S Electronics   voice/fax   714-534-6975
         13925 Parkway Drive
          Garden Grove, CA  92843
and this review from the author of the Sport Compact Car rx7 articles:
Subject: (rx7) [3] J&S Knock sensor (plug)

Quick spoiler (won't be in the mags for another 3 months):

J&S Electronics has visually redesigned their knock sensor for the 3rd
gen RX-7.  It now looks like a pretty anodized box now and far more
presentable than the previous plastic units.  For those who don't know,
Adam and Abel both use this unit (although they don't like to tell
anyone.)  It has saved more than one motor, from what I've been told.

Both Adam and Abel drag race Mazda rotary powered cars.
Able Ibara is getting over 700 HP out of a 13B.
See the dyno chart below.

For a engine that can be destroyed by one knock, it looks like a good
precautionary measure since the stock knock sensor doesn't seem to have
the necessary authority range to prevent knock on a modified engine.
John Pizzuto as J&S told me that Mostly Mazda (925-686-9055) is the
exclusive dealer on the West Coast.

The kit includes a electronic control unit (with sensativity
adjustments) and a microphone.  Installation is simple and requires very
little wiring.  Costs $425.  An optional plug-in a/f ratiometer and
ignition retard monitor is a $150 option.

Blatant plug, I know, but I've heard and seen good things about this
product.  The guys at MM consider it a highly recommended upgrade for
those with a free flowing and higher boosting rx7.  A good idea for the
track too.  I used one on my 330hp turbo Miata will good results-- stock
bottom end for 50k miles before the car was totalled.

FWIW, the product will be covered in Part III of SCC's Project RX-7
(Feb. issue)

Shiv

Thanks for the report.

Paul Lamar

 
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