Jake Raby, (Raby’s Aircooled Technology)
was looking for a means to increase the reliability, performance and
overall longevity in both street and professional racing applications, he
found his answer when he teamed up with Performance Cryogenics Custom
Thermal Cycling to process one of his most demanding applications, his 2.2
liter "Powerstroke" bus engine. The composition of the V W
engine makes it a prime candidate for noticeable improvements from the
"C T C" process. The aircooled V W engine expands and contracts
at a higher rate than their watercooled counterparts. In conventional,
untreated V W engines the expansion and contraction rates are extremely
irregular and attribute to abnormal head leakage, excessive wear,
premature fatigue and ultimately, failure. These abnormal rates of
expansion and contraction result in more frequent service intervals and
shorter lives, especially with higher performance applications. To prove
the effects of this process Jake has put his bus thru the routine of
carrying up to 2,000 pounds of engines/parts to shows across the South
Eastern US, including the Appalachian Mountain regions of North Carolina
and Tennessee. Not noted for a light foot, Jake has admittedly pushed his
Type IV powered bus to new heights and pushed "the limits". He
has even successfully completed a 7,000 R PM, 2nd gear burnout
(not loaded with cargo) for over 30 seconds with no adverse effects to the
engine with a modified stock "Cryoed" valvetrain (which is
something previously unachievable without the Custom Thermal Cycling).
Jake also notes that in his 1,000 mile valve clearance inspections, the
valve clearances are "perfect" and have not needed adjustments
in 15,000 HARD MILES, and counting. The cylinder head temperatures are
read with multiple gauges and are "impressively consistent". He
is now convinced with these findings and others similar to them, enough
so, to endorse and offer the "C T C" process for his customers.
Raby’s Aircooled
Technology is the only V W Specialty Engine Facility
that is an authorized representative of
Performance Cryogenics Custom Thermal Cycling
Please take a moment to sign our
