Formula 1 HELIX Two
Camshaft: The Helix 2 is the best choice for just about all high
performance applications. Single turbocharger and twin
turbocharger engines will both benefit. Large reductions in
maximum exhaust gas temperatures and smoke are immediately
noticed. Increased throttle response and pulling power. Lift
is higher and duration is extended on both the intake and exhaust
lobes. This cam is ground from a new blank casting and is not
a regrind. The H2 has the lobe ground for a mechanical fuel
pump. Both the press on and press-on/bolted-on camshafts are
available in the H2 grind. Bolted-on drive gears raise the
durability of the system and allow for added piece of mind with
high powered engine combinations. Cam failuers and gear walk have
been indicated in even stock Cummins engines using the P7100 pumps
that used the press-on gear system. Bolt-on gears fix this
potential trouble in high performance applications.
RPM range of the Helix 2 is from idle to 4000
RPM
Formula 1 HELIX Three
Camshaft: The best camshaft for the Nitrous assisted and maximum
effort Diesel only twin turbo applications. The H3
grind is specifically for the maximum top end power output and
airflow improvements. Lift and duration is higher than the
Helix 2 on both the intake and exhaust sides. Upgraded valve
springs are not a choice. Coil bind up of the stock valve
springs will occur even before the cam comes to complete
lift. The H3 will lower the maximum exhaust gas temperatures
and smoke output tremendously. Nitrous users will see they
now need half the nitrous they used previously to obtain the same
power output. This cam was used for lasts year sled pulling season
in Ray Gullets Street Diesel pulling truck. Ray placed 2nd in the
overall year after nearly 15 events and won first place in the
Mooreland Indiana pull. Doug Smith recently dyno tested
at 832 rear wheel HP using the H3 camshaft. This truck is the
highest HP 24 Valve truck on the road to date with much more to
come in the near future. Like the H2, the H3 has the lobe to
use the mechanical fuel pump for a bullet proof low pressure fuel
delivery system and is ground from a brand new casting. Not a
regrind. Press-on and press-on/bolted-on gears are available in the
H3 grind. Bolted on gears are highly recommended for the H3 cam
system and in the 12 valve Helix camshafts are only ground on the
bolt-on gear blanks.
RPM range
of the Helix 3 is 1500 to 5000 RPM. In the 24 Valve application it
pulls hard past 3500 RPM
