Automotive Engineering - September 2024 - 17
TECHNOLOGY REPORT
Smith explained the development process of the plate and
how Mazda determined that this was a weak point for this
chassis. " We had an Achilles heel in the NC differential from
the OE standpoint and wanted to fix that, " he explained. " Our
sprint racers did not want to justify the cost of an entire differential
cooling system with fans and other components. So,
we were trying to find an elegant solution that added minimal
cost to the car, but reduced the operating temperature of the
fluid and allowed an upgrade path for the future. "
Smith continued, " There's no expensive fluid you can use to fix
the issue because there's no airflow and the exhaust is also located
right next to the unit. So additional capacity and a heat
sink was the logical solution. " Smith said that during testing of
the unit, vehicles using just the plate saw max operating temperatures
of 300 degrees versus the factory configuration.
" With just the plate, it took two hours of constant use to
reach that temperature. That's a 30-50-degree delta from the
factory setup, which would reach those temperatures in just
20 minutes, " he said. " If you're sprint racing for an hour or
less, the spacer is all you need. If you're running for over an
hour, you'll want the spacer with a pump and other components
because it will eventually heat soak out. "
Smith estimates that there are between 25-30 examples
of the plates currently in circulation. Mazda Motorsports is
Mazda's
differential
plate features
strategically
positioned
ports for fluid
circulation and
fins on all sides
serving as heat
sinks.
currently developing a comprehensive kit featuring a cooler,
pump and filter. The system will be designed for ease of installation
and maintenance and will mount on a removable
plate in the trunk.
Matt Wolfe
AUTOMOTIVE ENGINEERING
September 2024 17
MAZDA MOTORSPORTS
http://info.hotims.com/86276-712
Automotive Engineering - September 2024
Table of Contents for the Digital Edition of Automotive Engineering - September 2024
Automotive Engineering - September 2024 - INTRO
Automotive Engineering - September 2024 - SPONSOR
Automotive Engineering - September 2024 - CVR1
Automotive Engineering - September 2024 - CVR2
Automotive Engineering - September 2024 - 1
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Automotive Engineering - September 2024 - CVR3
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