tigers
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Re: Hot Tigers

To: JEFF_CARTER@hp-cupertino-om5.om.hp.com
Subject: Re: Hot Tigers
From: brockctella@juno.com (Brock C Tella)
Date: Wed, 3 Sep 1997 18:00:48 -0700
Filter is a Gano that filters out all the junk in the cooling system.
They work but don' use the plastic ones, they crack. Its amazing all the
stuff they filter.
On Wed, 3 Sep 97 10:15:23 -0700 JEFF_CARTER@hp-cupertino-om5.om.hp.com
writes:
>     I was over a friends house this weekend and was asking him about 
>a new 
>     radiator that he put in his Mustang.  He said it helped but was 
>still 
>     overheating.  He opened the hood and the first thing I noticed 
>was the 
>     absence of a shroud, but was really curious to me and I had never 
>seen 
>     before was filter installed in the upper radiator hose.
>     
>     Told him about the slow flow vs. fast discussions we've been 
>having.  
>     Has anyone ever seen one of these items?  And why would a 
>"filter" be 
>     necessary?  Geez, until I owned the Tiger, the only cooling 
>advise I 
>     ever heard was flush the system and 50% antifreeze/50% water!
>     
>     JCarter
>
>
>______________________________ Reply Separator 
>_________________________________
>Subject: Re: Hot Tigers
>Author:  Non-HP-rpalmer (rpalmer@ames.ucsd.edu) at 
>HP-ColSprings,mimegw5
>Date:    9/3/97 8:59 AM
>
>
>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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