I have a Pantera with 351C. It is gopel that we use 351C thermostat that
is different than 351W. The Cleaveland needs the thermostat "hat" we call
it to slow down the circulation we believe. All I know is if we don"t use
this correct thermostat our cars tend to overheat,any explanations?
On Wed, 3 Sep 97 08:59:03 PDT rpalmer@ames.ucsd.edu (Bob Palmer) writes:
>Nice to hear a little more about this monster 351C Tiger. Obviously,
>there's more than one way to skin this cat. I presume you are giving
>your
>engine temperatures in Celsius. Few of us are really going to believe
>an
>operating temperature between 85 and 120 F. If your talking
>centigrade (or
>Celsius to be more correct) this would be a range of to 185F to 248F,
>and
>halfway between is 216F. I, and a lot of other Tiger owners have
>basically
>the same experience, each with very different equipment and motors. I
>guess
>it's natural that most of the people discussing this issue have some
>kind of
>problem. Diagnosing each individual problem is the challenge.
>
>The only small thing, but significant I think, I would take issue with
>is
>referring to the "copper washer to restrict water flow". Reducing
>water
>flow per se never improves cooling. The value of a restriction is
>that it
>builds pressure inside the engine, albeit at the cost of water flow.
>As
>long as the reduction in water flow is not excessive, then there's a
>net
>benefit. The trick is to add just the right amount of restriction, I
>guess
>only trial and error will work here.
>
>Bob
>
>>Tigers,
>> I am having a few chuckles with all the "Cooling of hot
>Tigers"
>>mail. I have a 4 barrel head 351 Cleveland in my tiger which I drive
>
>>to work every week day. The 351 gets 14 mph on a good week and
>normally
>>around 13 mpg. Needless to say I am burning more gas per minute than
>>most 260 or 289 Tigers; yet I don't have an overheating problem. I
>>do admit that when I spend 15 minutes in traffic the temperature
>gauge
>>goes up to about 1/2 way between the 85 and 120 degree mark. In
>normal
>>driving the gauge sets just slightly above the 85 degree mark. I
>have
>>a generic " Do Not Open while Hot Coolent Recovery" cap on the
>expansion
>>tank (which is completely full) and a plastic recovery bottle.
>Apparently
>>the cap has not opened this summer as there is green antifreeze in
>the
>>radiator, but the plain water half filling the recovery bottle is
>still clear.
>> I do have a wider and longer engine compartment than stock,
>but
>>then again I have a bigger motor filling it up. I assume some of the
>air
>>can get around the motor and out under the Tiger.
>> The radiator is 4" wider than stock and it has a modern
>copper core in
>>it ( which weighs a lot less than the stock English core).
>> Inlet and outlets were added to the lower left and upper
>right
>>to match the Clevland I/O. The original Radiator I/O are capped by
>>"Jones Plugs" ( these are rubber caps used by the plumbing industry
>>when they pressure test their plumbing). Probably need to replace
>them
>>as they are now 6 or 7 years old.
>> I have a 6 blade 14" steel fan that orginally supplied by
>Sears
>>for an aftermarket air-conditioner for a Rambler.
>> The thermostate is unmodified. The Cleveland has the stock
>OEM
>>copper washer under the thermostat to slow the water flow.
>> When running the Tiger for long periods of time parked in the
>>driveway ( say to charge a battery or when I am doing work that
>requires
>>the motor to run for a long time such as breaking in a new camshaft)
>the
>>Temperature gauge gets on up there towards 120. At that point I
>either
>> shut it off or set up an electric fan to blow air in the grill.
>>Sometimes I use a hose to provide a small water spray on the radiator
>
>>in these cases.
>> The Tiger has the stock Tiger II dual pipe oil cooler on it.
>> The Thermo-Tec that I wrapped the headers in has caused the
>>running temperature to increase 8 to 10 degrees. I did not rejet the
>
>>carb after wrapping the headers and it seems that I may have lost
>>1/2 to 1 mpg due to the wrap. Maby due to excess cylinder scavaging?
>> I have a reversed hood scoop but that is mainly for air
>filter
>>clearance. Some air comes out of the rear of the scoop below 35 mph
>but
>>air enters above 35 mph.
>> Most of my driving is in town at 30 to 60 mph; however I
>>don't waste any time starting from lights unless I am blocked by
>>traffic. I also don't have temperature problems at 90+ on the
>>highway. That is in Florida where the air temperature is 85 to
>>90 degrees with 85 to 100 percent humidity most of the year.
>>(when It is not raining)
>> My recommendation to Tiger Owners is to have your radiator
>>recored with a modern core. I have had a couple done for around
>>$130 at the local radiator repair shops. I truely believe that
>>the state of the art in radiators has improved in the last 30 years.
>>Lighter and more efficient. ( Air has a chance to get through the
>core
>>compared to the very dense fins of the original Tiger core.)
>>Jim Barrett Tiger II 351C and others
>>
>>
>>
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