Introduction
Selecting a camshaft is a difficult decision for even the
most veteran enthusiast. We all want to get that perfect cam
which meets our goals for peak horsepower, broad torque, smooth
idle quality, or a variety of other criteria. So how does
one ensure he selects the right cam? Perhaps you're tempted
to consult the friend of a friend. You know the one. The self-proclaimed
cam guru that everyone seems to go to for cam suggestions,
yet no one is quite comfortable actually going with his choice
for their motor. Many of us opt to make our own decisions
by trial and error. We read the catalog descriptions, ponder
the marketing hype, and make our best educated guess before
ordering up the perfect grind. If it turns out to idle a bit
too rough, or not pull as hard as we expected, well we run
with it for a while and then go through the process again.
Most of us don't get too distraught over this practice, after
all, weekend cam swaps are the essence of this hobby. However,
sooner or later the time comes when you don't want to screw
around pretending to understand intake centerlines and lobe
separation. This time you'd rather take comfort knowing your
cam was selected by guys who do cams for a living. That is
when you pick up the phone and spend the afternoon dialing
the cam manufacturer's tech lines.
FordMuscle Undercover
Just about all of the major camshaft companies offer technical
support via telephone. Most of the companies very well realize
that the tech line can be a great sales tool for their camshaft
lines because of the difficulties people have in selecting
the proper cam. Call a tech line, tell them your combination
and goals, and get the part number for a recommended cam.
Seems like a win-win situation for the company and the gearhead.
FordMuscle went incognito to find out
just how well the tech lines operate. We called up the tech
lines for six major camshaft companies. All calls were anonymous,
we did not reveal that we were a publication. All tech lines
were called twice, once during their peak hours and then again
on a different day during off-peak times. To mix things up
a bit and to eliminate bias we created two different hypothetical
engines. On one day we asked for a cam recommendation for
a small block Ford stroker. On day two the same cam companies
were asked to help us pick a cam for a 460 Ford.
Hypothetical
Engine & Car Combinations
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SBF 347 Stroker:
1989 302 roller block, AFR 165cc Comp Heads,
10:1 Compression, Weiand Stealth intake, 750cfm
Holley with mechanical secondaries, full-length
headers and dual 3" exhaust. 6500 RPM
max.
Car: 3200lbs, 4-spd manual transmission, 3.79:1
Axle Ratio, 26" Tire |
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BBF 460: 1979
460 flat-tappet block, Edelbrock RPM Heads, 9.5:1
Compression, Weiand Stealth intake, 850cfm Holley
with mechanical secondaries, full-length headers
and dual 3" exhaust. 5500 RPM max.
Car: 4000lbs, C6 automatic transmission,
2500 RPM stall converter, 3.55:1 Axle Ratio,
26" Tire |
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While this methodology is in no way scientific,
we figured by calling on two different days, at different
times, with different engines, would reduce the chance of
getting a tech operator who perhaps hates small block Fords
or loves big block Fords. Of course, we can't do anything
about the tech operator who may hate all Fords equally.
Standardizing the Calls
With the test case laid out we started making calls. We obtained
the tech line phone numbers from the company websites, catalogs
or ads. We called Crane Cams, Competition Cams, Lunati (Holley),
Crower, Ultradyne, and Isky. As you can see these are bonifide
camshaft and valvetrain companies with a full line-up of camshafts.
We deliberatly pick big guns, mid-sized companies, and smaller
names. For each call we started with the same statement...
"Hi, I am building a 347 Ford
stroker (or 460 Ford) and would like a camshaft recommendation."
In order not to lead the responses we did not offer up
additional information until asked by the tech line operator.
When asked for information on the engine or vehicle we would
answer with the appropriate specifications as listed above.
Our objective would be to not just obtain a cam recommendation,
but more so to see what the overall experience is like. We
evaluated hold time, technician hospitality, and the overall
experience of dealing with that companies cam tech line. So
let's see what we encountered.
Crane Cams
It
is fitting that first up should be legendary Crane Cams in
Daytona Beach, Florida. The company founded in the 1950's
by Harvey Crane (see side bar) actually supplies the steel
cores to many of the other companies mentioned here. We called
them on a Monday afternoon as well as Tuesday morning. For
a big cam company, Crane had the best phone response time.
That is good because without a toll-free number our call to
Florida from California would get costly. We also appreciate
the 12-hour operating time, as nothing is more irritating
than calling an east coast company at 2pm Pacific time to
find they are gone for the day.
Crane Cams
Tech Line Evaluation
Tech Line Number: (386) 258-6174 Hours:
M-F 8am-8pm EST |
Hypothetical Engine |
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Time of Call |
Monday, 1:46pm PST |
Tuesday, 9:05am PST |
On Hold Duration |
4 min |
< 1 min |
Tech Operator
Hospitality Rank* |
2 |
2 |
Camshafts
Recommended |
PN: 449651
Type: Hyd. Roller.
[email protected]: 226/232
valve lift: .544/.559*
LSA: 114 deg.
(*with 1.7:1 rocker)
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PN: 354551
Type: Hyd. Flat Tappet
[email protected]: 226/230
valve lift: .522/.530
LSA: 112
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Remarks |
Quick response time. Good information
on website.
Rushed feeling. Single cam recommendation, no other
valve train advise offered. |
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*Hospitality Scale: Junkyard Dog 1 -
2 - 3 - 4 - 5 Good 'ol Boy
Unfortunately the pleasantries of calling
Crane end when the phone is answered by the tech operator.
If Crane Cams were a hospital, then we'd have to say the cam
doctors there have no bedside manner. Neither of the two techs
we dealt with introduced themselves, gave us their names,
or seemed thrilled about talking cams. The process was like
getting a physical, except rather than asking you to turn
your head and cough, we were asked in rapid fire succession
"what gear? what weight? what rpm? what transmission?
and what tire height?" After answering the questions
we were given a part number for a single catalog cam, followed
by awkward silence as if we were supposed to magically know
the cam specs. We had to ask the tech to read us the specs
on both calls. We assume the techs at Crane are plugging our
answers into Cranes cam selector software, rather than really
listening to our specs and trying to use their presumed experience
to select a cam. As a manufacturer of a complete line up of
valvetrain products we would also expect Crane's top brass
to have trained tech line operators in suggesting matching
springs, lifters, and retainers. We got no such advice. Overall,
talk time with the Crane techs was the shortest of any of
the companies we surveyed.
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