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email: chris@cjsracing.co.uk tel: 07594 342279
Back the Flow Bench & Why We Use It
This is a flow bench for testing and
optimising cylinder heads. It basically measures airflow through the ports
and is capable of pulling 28inch h20 via its powerful motors installed under
the bench.
Being able to
flow cylinder heads at 28inch of pressure or more, enables us to see much more
of what's actually happening with the heads than flowing at 10 inch of
pressure or less. At the higher test pressures we can approach flow
separation amongst other things with more understanding and caution. Every
new or re-designed cylinder head takes around 1 month to fully optimise. The
shape of the valve, seat combination and port size are all closely related.
Once the desired shape has been made we can replicate it to your
cylinder heads with a short turn around time.
748 Airflow Graph The cylinder heads are measured before, during and after testing. The software is able to produce airflow and velocity graphs to enable the operator to clearly see the improvements or losses made.
The peg fm1 is a precision piece of machinery that can cut any seat angle you want to any depth in a short amount of time. CJS cuts each angle separately for development work and when the optimum angle for each type of head and valve combo is found, a special 3-5 angle profile blade is then manufactured saving labour costs to the customer. The peg is also used to remove worn seat inserts and install larger higher performance ones.
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