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Section A - Cooling System, continued.....

Subject: OEM water valve Date: Fri, 19 Jul 1996 18:54:22 -0400 From: CMeinel464@aol.com To: tigers@autox.team.net CC: alpines@autox.team.net

Guys,
About a week ago someone posted a want add for a Series V water valve. Some responded that one was available from Tiger Technologies. I'm not sure if that's a OEM or a repro. If anyone is interested I have found five OEM ones in England. These are original Smiths #FHW 1306/02, they fit Alpine V, Tiger Ia, Tiger II. If your intrested E-Mail me.
Curt Classic Sunbeam
Subject: Re: Swirl Pots and Hot Tigers Date: Mon, 22 Jul 1996 12:17:48 +0100 (BST) From: "G.S.Sutherland" To: av342@lafn.org (Steven Laifman)

Hi Steve,
I got the fix of DG Motorsport, and since I don't own a car yet, I don't know how to implement it. I've got their address here:
DG MOTORSPORT (INTERNATIONAL) LTD., The Raceshop, Green Lane, Studley, Warwickshire, B80 7EY.
Tel: 01527 854514 Fax: 01527 852983
I guess that pressure may be maintained by the momentum of the liquid in the pot, but I'm afraid that I'm not a physics or engineering type, so I cannot say exactly.
Graeme
Subject: RE: The Hot Motor Bit Again Date: Tue, 05 Aug 97 11:06:00 MST From: "Bennett, Cullen" To: "'tigers'"

Allan,
>1) Cullen Bennet (or is it Bennet Cullen?? either way, I appologize....) >has suggested that he gets good results from a custom Aluminium radiator >built by a friend of his....anyone had a similar experience? And Cullen, >if I order one of these $480 beauties from this guy, will it fit?? Current >radiator is three row (I think) with two tubes followed by one, and then >two again. The current radiator fits fight up next to the rack and ?pinion....there just ain't no more room!
It is Cullen Bennett and Tigers can run cool. The fellow that I bought my radiator from is Ron Davis, and he makes and sells lots of them. I was told that he also makes them for a guy in California by the name of Dale A?????ski (I have trouble with names too). When I had mine built, I took Ron my old unit as a template. He said that it was the first one that he had seen first hand. He was building them for Dale from a set of drawings. As it worked out, I still had to cut a wedge out of the bottom hose tube, bend it over and have him re-weld the aluminum to clear the frame on the passenger side. There is no joking.... it IS a press fit all the way, AND it is up against the rack housing. I even cut out notches in the lower radiator frame to clear the bolt heads on the rack. The overall thickness is more than the stock radiator. The new one is a two row aluminum. Each tube is 1"x 1/16" and run horizontally. My feeling is that the key to making them work is making a full fan shroud around the radiator. The Tiger never came with a lower half and I believe this is why it has historically run hot. All I can attest to is that I even put an air conditioner condenser core out in front of it and it STILL only runs 205 degrees on a 109 degree ambient, in traffic. When Bobbie and I came back from TU XXII, we came around the edge of Death Valley Nevada in the middle of the afternoon with no problems. I don't think there's anything magic about my Tiger, its just that I stumbled onto a radiator/shroud/fan combination that works and works well. The fan is a six blade rigid fan that I cut down to clear the rack and reset the pitch to clear the radiator with about 3/4". Before you spring for the big bucks and buy an aluminum radiator, try fabricating (fitted cardboard cutout template transferred to sheet metal) a full shroud with a six blade fan. I bet it will get the temperature down to something reasonable. Going back to the 2.88's will also help keep the rpm's down. Check your ignition timing too, a few degrees can make a big difference on heat output (efficiency). That's my two cents worth from the soap-box.
Cullen Bennett in Tempe AZ (B9472658).
Subject: Re: cooling recommendations Date: Wed, 6 Aug 1997 19:42:09 -0700 From: ritchie@mcn.org (Armand & Lorie Ritchie) To: Steve Laifman

>Armand, > >How big in diameter is the electric pusher fan you're using? (blade >diameter and housing size). How does it mount to the body/radiator? Dou >you have a thermostat control? Do you know the make/model/CFM rating?
I don't have this setup in my tiger yet. I was referring to a setup that was in my TR7. But I will be doing it soon. I will use two small fans and I will make brackets that attach to the sheet metal shroud around the radiator. Either on the sides or top and bottom I'm not sure yet. I will be purchasing the fans soon and will advise make model and cfm rating and diameter to the list. I will use a switch for turning them on, not a thermostat
>I have an electric fan in my own design custom sports car. The radiator >and fan are in the front steeply raked back, and the 2.8L V6 is in the >rear. The fan only comes on with thermostatic sensor exceeeds 200 deg. >The temperature drops right down. But then this has a 100 amp >alternator, not a 20 amp generator.
I would like to see a picture of your car, do you have any available. When I was a teenager a friend of mine's dad built a sports car out of wood over a metal frame. It was like an up side down boat with ship lap sides. It was kind of neat. sort of looked like fred flintstones car.
>My new four row, hi-density radiator with the cut-down Canadian Ford 6 >blade works fine. It was 115 degrees in the Valley yesterday, and I was >running about 203 (95C) in 35-40 mph tooling around at noon. (Only mad >Dogs and English (cars)men go out in the mid-day sun) > >But, I was thinking about a back-up, in case I get stalled in traffic. >Didn't really want the back-up fan to restrict the normal flow.
I think the plan is to keep the fans a couple of inches away from the radiator, that way the air flow won't be restricted when the fans aren't working. I think putting them right up against the radiator is a mistake. Thats why I will make brackets to hold them a little forward of the rad. when I get It all done I'll take pictures and write it up properly and maybe post it to the tiger page. I'll make sure I send you a copy.
Regards Armand
ritchie@mcn.org Armand & Lorie Ritchie

Subject: Re: cooling hot tigers Date: Fri, 29 Aug 1997 14:32:47 -0500 From: mmeswarb@huntel.net Organization: http://www.huntel.net/mmeswarb To: Tiger List References: 1

This thermostat drilling thing had me scratching my head for minute, too. When I picked up some other parts at my Ford dealer, I suggested to my parts guy that I would pick up the thermostat somewhere else, to avoid paying for that expensive Ford box. He said it was worth buying the Ford one, because it has a built in check valve. It looks like a slightly high tech drill hole. The thermostat is to be istalled with this rotated to the top. Anyway, he said it was important because it allows air to escape. Could this have something to do with this solution?
Food for your thoughts,
Mark
STUART_BRENNAN@HP-Andover-om3.om.hp.com wrote: > > > Something's a bit off in this explanation. > > The guy's pump is running slower, so he gets higher temperatures. Makes sense > so far. But drilling holes in the thermostat cures the problem, by allowing > some flow when it's closed? Wrong explanation. If he's too hot, the thing > should be wide open, and the additional holes serve to decrease the restriction > at the thermostat, increasing the flow. Without knowing how many holes, and how > big the stock opening is, it's hard to say how much of a difference it makes, > but it must make some. And the car will take longer to warm up. > > Remember the discussions of a few weeks back. This result adds to the evidence > against those folks who want to slow the flow to improve the cooling.


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