What does regrinding a cam do?
Regrinding a cam is making the circle smaller, in order to make the bump bigger so it can be reshaped. David Hemi Joel and silent rick like this. Yeah...your basicly grinding down the radius of the ass end of the lobe to effectively give more lift without adding metal.
Can I regrind my existing camshafts?
If your camshaft is not available as an aftermarket product, regrinding your existing camshaft could be a great option. Our performance regrind service can also be a cost effective alternative to purchasing new camshafts. Simply send your camshaft/s and we will modify them and send them back to you.
What does Oregon cam grinding do?
Oregon Cam Grinding specializes in grinding and remanufacturing camshafts for automotive and industrial uses. We also sell new cams and lifters for almost any engine. We also distribute camshafts, cranks, pistons and related engine parts for racing and high performance engines.
How long have we been grinding camshafts for?
With more than 45 years of camshaft grinding experience, you can trust us to know what to do to each type of camshaft to extract the ultimate performance and reliability. We have performance profiles for a range of Japanese, English, American and European engines, such as:
What is the purpose of a cam swap?
This allows you to remove and replace the camshaft without having to remove the cylinder heads. So let's quickly run through a cam swap on an LS engine. The first step is to drain the coolant from the block and remove the water pump and harmonic balancer.
How do they grind camshafts?
Camshafts for heavy-duty diesel engines are typically made of hardened steel. Their final dimensions are produced on high-precision, million-dollar-plus CNC grinding machines using wheels made of CBN, a man-made abrasive that was first synthesized in the 1950s and is second in hardness only to diamond.
How long does it take to grind a camshaft?
It will take roughly 3-5 days to get your cam grind completed.
Does a cam swap increase horsepower?
If you're wondering whether a camshaft heightens horsepower, the simple answer is yes. To ensure a high-performance stock cam increases horsepower, you'll have to make other adjustments such as swapping out the air intake, the exhaust manifold, injectors, and more we will discuss below.
How do I know if my camshaft is advanced at the factory?
There is a very easy way to tell if the camshaft has been advanced by the cam company when the cam was machined. Look at the cam timing card and compare the lobe separation angle (LSA) with the intake centerline number. If the numbers are the same, then the camshaft has not been advanced.
What does a high performance cam do?
With that said, aftermarket cams are designed for high-end performance, so you can typically expect to experience faster speeds after camming a truck. Are Bigger Cams More Powerful? Yes. A bigger cam will open the intake valve wider, allowing more fuel and air into the cylinder.
How much does a custom camshaft cost?
The average cost for camshaft replacement is between $1,384 and $1,614. Labor costs are estimated between $880 and $1,111 while parts are priced at $504. This range does not include taxes and fees, and does not factor in your specific vehicle or unique location.
What is a custom grind cam?
COMP Cams will custom grind a camshaft for your specific application without adding additional fees or custom service upcharges. With the largest cam lobe library in the industry, COMP Cams is set up and ready to grind the custom camshaft that you need for almost any engine.
How do I order a cam?
1:064:56COMP Cams: How to Order a Custom Camshaft - YouTubeYouTubeStart of suggested clipEnd of suggested clipThe tech representatives will walk you through your engine's performance requirements. And help youMoreThe tech representatives will walk you through your engine's performance requirements. And help you decide whether you need a custom made camshaft at all comp.
Does camming a car make it less fuel efficient?
A cam, or an good Heads and cam package really won't affect your highway mileage much IF it is properly tuned after the install, and IF you don't hammer it all the time! You will notice a significant drop in your stop and go traffic mileage.
What is a Stage 3 cam?
The Stage 3 LS1 camshaft is the largest camshaft that we recommend with the stock torque converter. This Cam Motion hydraulic roller cam delivers mild performance idle, excellent low end torque, and extended RPM capabilities over the stock camshaft.
How long does a cam swap take?
6-8 hours is a pretty good estimate.
What is a good camshaft duration?
Measuring duration at 0.050-inch tappet lift has become standard with most high-performance cams. Most engine builders feel that 0.050 duration is closely related to the rpm range where the engine makes its best power.
Why should I degree My camshaft?
The purpose of checking or degreeing-in the camshaft in the engine block is to determine whether or not the camshaft is installed in the correct relationship or phasing with the crankshaft. However, the most important step in phasing a camshaft is finding absolute T.D.C. of the #1 cylinder piston.
What happens if you advance cam timing?
Advancing or retarding a camshaft's timing from its original "zero" position causes the valve events to happen either earlier or later in the engine's cycle. A camshaft that is advanced four degrees will cause each opening and closing event to occur four degrees of rotation sooner than before.
Are cams hardened?
The 5150 cams are induction hardened, with the induction coils wrapped around each of the lobes and journals, selectively hardening them and not the entire core. Rockwell testing puts loads on a diamond tip that makes indentations in the surface.
What does it mean to regrind a cam?
When we regrind a cam, we just put the same profile (or a different one if you're changing something) back on it, only at a slightly smaller size . We have to check the cam for hardness when we're finished to make sure we didn't grind through the hardness layer. There are some pictures of the regrinding equipment at this website: Kams, Inc. camshaft and cam follower manufacture and regrinding .
How to grind a cam core?
if you're searching for a good core to grind from, look at the nose high point of cam, if that's close to level to the cam journal height, use that. then cut the base circle/heel down to the minimum it can go, and that's all there is to gain there.
What is a cam on a bike?
A cam is a bump on a circle. When the lifter is riding on the circle, it's at zero lift. as the cam rotates, the lifter sides over the bump. Regrinding a cam is making the circle smaller, in order to make the bump bigger so it can be reshaped. David. four-thirteen, Dec 1, 2004.
How did Isky make their cams?
Isky used to make "hard face" cams by grinding a groove in the cam and filling it in by arc welding with a harder material. This gave a hardened surface where the lifter rode. Cams can be built up larger by the same welding process then ground down. But most of the time they would grind down the cam a little smaller but with a different lift and duration profile.
How to increase lift on cam?
Just to restate what others have said, lift and duration are increased by grinding away the "base circle" of the cam. The lobe doesn't have material added to it, but the non-lobe part is ground away making the difference between highest part of the lobe and the lowest part of the base circle a greater distance. If you grind away enough of the base circle, you can flatten the top of the lobe and still increase the lift while changing the duration profile substantially. There is a bit more to it than that, but I hope you get the idea. Some extreme flathead cams actually grind the base circle right down to the shaft.
Is the cam bearing reground?
Something I'll add, the lift on the lobe is limited by the diameter if the cam bearing.so yes it is reground as others have commented.
Does regrinding a camshaft work?
REgrinding reduces the overall size of the lobe and while it will work, you are better off if you can locate a new camshaft that has full size lobes. Lots of people use them in lower performance engines with no problems, but lots of times regrinds don't work as well as their new counterparts. You have to remember that the interface between a flat tappet lifter and the camshaft is critical to longivity and working with a smaller lobe isn't bestus............Unless you can't get a new one, I wouldn't consider a regrind. I also would not consider a welded camshaft.....ever.
