Facility

Endyn's machine shop and dyno test cell overwhelm a dedicated 4000 square foot building. Parts storage occupies a separate 4000 square foot building.

Our inventory of Roller-Wave pistons awaiting finishing is extensive allowing us to provide customers with same-day shipping for most applications. We also maintain a large stock of Crower and Eagle rods, rod bolts, ARP head and main studs, ClutchMaster products, Cometic head gaskets, intake manifolds, HyTech headers, Quaife differentials, Fluidampr harmonic balancers, Moroso oil pans, breather kits, and genuine Honda parts.

 

Cylinder Head Machining

Our machining area is climate-controlled, well-lighted, and meticulously maintained. All of our machinery was purchased new to do limited numbers of high-tolerance custom jobs. These machines have never seen the wear associated with high-volume general automotive machine work 

Cylinder head squaring / milling is accomplished using custom fixturing and the most accurate machinery in the industry.

Combustion chambers and ports from our best performing heads are digitized by Bob Butler of Reher-Morrison Racing Engines for replication on one of their 5-axis machining centers.

Combustion chambers and quench pads are machined using a 3-axis Bridgeport CNC mill after the heads are squared. This allows us to stagger the heights of the intake and exhaust quench pads, creating the optimal combustion space for controlled mixture burning efficiency.

High-accuracy valve seat machining is accomplished using the latest Serdi equipment designed specifically for small-valve heads.

Adjusting set-ups and cutters continuously for a variety of heads improves the chances for errors. We use separate cutting tool holders for each cylinder head / valve size and fixturing that locates heads with dowels insuring each head we machine is done to the highest standards. We have also invested in custom pilots sized to .005mm to insure valve seat concentricity measures .0002" or less.

Our lathe is used for machining valve guides, and re-contouring valves, and "adjusting" piston land diameters and dome heights.

We use a Serdi centerless valve grinding machine for facing valves. Dedicated measuring fixtures assure that valve face  run-out is held to less than .0001".

Fabrication

Welding and  fabrication take place in this area, which is segregated from the machining and assembly areas to avoid the possibility of abrasive contamination. 

 

Component Cleaning

When building engines, the saying "cleanliness is next to godliness" applies. Our commitment to building the cleanest possible engine assemblies includes a cold vat containing hydrocarbon-eating microbes, a Peterson high-pressure blasting cabinet using soap and hot water, and an ultrasonic cleaning system large enough for an entire Honda engine. We use no environmentally-harmful chemicals in our facility.

 

Engine/Head Assembly

Cleaned components are taken to our engine assembly room, which is well insulated from the machine areas. This area is very well-lighted and temperature-controlled at 73 -75 degrees continuously. Our measuring equipment reads accurately to .000001". All  head CCing, valve spring pressure measurements, head assembly, engine assembly takes place in this room.

 

Flow Testing

Our 1000cfm flow bench uses a laminar flow element to analyze flow quality, a digital flow transducer for measurement of bulk-flow in pulsing tests, and computerized orifice measuring system for readily comparing flow numbers with other mainstream commercially-available flow benches. 

 

Camshaft Analysis

 Our camshaft measuring and analyzing equipment also shares space in our assembly room. We can compute valve timing directly from the cam lobes using radius pads, and we can also measure it directly from the  valves on head assemblies with custom fixtures we've engineered.

 

Dyno Testing

 As you can see, our investment to insure that our customers receive the very finest engine componentry is substantial and it doesn't stop here. With our in-house engine dyno facility, we have the ability to measure and quantify the performance of each and every part of the engine, and then access their performance as assembled engine combinations.

No expense was spared in the construction of our spacious stand-alone dyno facility, which meets or exceeds all SAE certification standards. An axial-flow fan in specialized ducting are used to vent 28,000 cfm through the room to eliminate any possibility of exhaust contamination. Separate fans and air-conditioning in the inlet plenum allow us to precisely control air temperature and barometric pressure, assuring accurate testing that's not affected by outside weather conditions. Engine water temperature is accurately maintained via a 1300 gallon coolant reservoir inside the building.

We measure engine air consumption via the ceiling-mounted air flow transducer that's inline with the secondary intake plenum-box visible at the rear of the dyno.   

Exhaust gas temperature is measured in each header primary pipe to insure that both fuel and air flow/distribution is correct from cylinder to cylinder.

Fuel flow and consumption are measured using flow meters combined with a float-chamber on our stand-alone fuel system that's linked to the dyno's data acquisition system. We also use three independent wide-band O2 sensors to monitor real-time air/fuel ratios.

 

  Endyn's commitment to providing our customers with the finest componentry available at any price is the same today as it was in 1974 when we first opened our doors.  Our ability to engineer components that "affect" combustion efficiency are well-known to long-time racing enthusiasts. Over the years, we've assembled the equipment and personal necessary to conduct complex research and development programs completely in-house, saving customers time and money. Recognizing that quality and quantity are two entities that can not coexist in this business, so we're out to serve the discerning few rather than the masses.

Endyn is my "hobby shop", where each and every piece produced is treated just like those I build for myself. We have no time allotments for any machine-operations like other shops. We take the necessary time to insure that the job is done to perfection.  I won't have it any other way............

Larry Widmer (The Old One)