Carpenter Racing is the most experienced cylinder head porting company for all-out motorcycle performance in the world. Our racing championships, record-setting land speed efforts and 45 years at the forefront of cylinder head technology back up that claim. Carpenter Racing was started by Bob Carpenter as an outgrowth of his successful racing career in the formative days of Pro Stock Motorcycle drag racing.
In the late 1970s Carpenter began competing on a Kawasaki H2, eventually moving up to Kawasaki Z1s, and then the legendary Suzuki GS1100. An independent racer competing against well-financed teams, Carpenter was successful by relying on ingenuity, insight and hard work. By the early 1980's he had won four Pro Stock Motorcycle championships in the NHRA/NMRA, AMDRA and DRAGBIKE!
Since that time Carpenter Racing has produced the highest-output motorcycle cylinder heads and engines for various disciplines of all-out performance. Our products have led our customer teams to at long list of land speed and drag racing records and championships.
In the late 1970s Carpenter began competing on a Kawasaki H2, eventually moving up to Kawasaki Z1s, and then the legendary Suzuki GS1100. An independent racer competing against well-financed teams, Carpenter was successful by relying on ingenuity, insight and hard work. By the early 1980's he had won four Pro Stock Motorcycle championships in the NHRA/NMRA, AMDRA and DRAGBIKE!
Since that time Carpenter Racing has produced the highest-output motorcycle cylinder heads and engines for various disciplines of all-out performance. Our products have led our customer teams to at long list of land speed and drag racing records and championships.
Services
2 Porting - In the very competitive world of performance, the manufacturers have made ports more efficient.
Because they have other parameters to consider, the engine becomes a restricted package that adds some negative shapes to the ports.
Correcting and keeping port volume on target, we do not cut certain areas of the port.
Maybe not as pretty as a "polished" head, but definitely faster.
3 Components - We offer a full line of valves and valves seats for optional larger ports.
Other components include larger tappets and larger valves with options of titanium, stainless, DLC coatings etc.
Because they have other parameters to consider, the engine becomes a restricted package that adds some negative shapes to the ports.
Correcting and keeping port volume on target, we do not cut certain areas of the port.
Maybe not as pretty as a "polished" head, but definitely faster.
3 Components - We offer a full line of valves and valves seats for optional larger ports.
Other components include larger tappets and larger valves with options of titanium, stainless, DLC coatings etc.
When your head has this on it, it has this in it.
Countless hours of testing, research, development, dyno testing, track testing, and 54 years of port designing.
What happens inside of an engine at 10,000 RPM? 10,000 RPM sounds relatively moderate for a race engine.
Yet at 10,000 RPM your valves open and close 83 times per second.
Not much time for your intake and exhaust ports to fill and empty your cylinder (about.01 of a second to be exact).
We take a very serious and methodical approach to cylinder head porting.
Countless hours of testing, research, development, dyno testing, track testing, and 54 years of port designing.
What happens inside of an engine at 10,000 RPM? 10,000 RPM sounds relatively moderate for a race engine.
Yet at 10,000 RPM your valves open and close 83 times per second.
Not much time for your intake and exhaust ports to fill and empty your cylinder (about.01 of a second to be exact).
We take a very serious and methodical approach to cylinder head porting.
Ralph Hudson with Carpenter Racing now has the fastest sit on motorcycle on the salt at 297mph!
The Castrol Rocket land speed machine hits the salt with a pair of turbocharged Rocket III engines built by Carpenter Racing.
Cecil Towner, Ryan Schnitz and the HTP Performance Racing team smash the six second barrier for street bikes with Carpenter Racing.
The Forstall/DeLuca/Knecum team sets the Land Speed record for a normally-aspirated motorcycle at Bonneville with a Carpenter Racing-equipped Hayabusa.
The Castrol Rocket land speed machine hits the salt with a pair of turbocharged Rocket III engines built by Carpenter Racing.
Cecil Towner, Ryan Schnitz and the HTP Performance Racing team smash the six second barrier for street bikes with Carpenter Racing.
The Forstall/DeLuca/Knecum team sets the Land Speed record for a normally-aspirated motorcycle at Bonneville with a Carpenter Racing-equipped Hayabusa.
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