[1967Tempest]

Another success story. Here is the fan working. heat index over 100*. The car would get cooler if I was moving!!!


http://www.youtube.com/watch?v=a0nvSXyljGo

[Pepi]

That is impressive!

[Gary D]

I like the video!
I still have the question. Do you heat up at Hwy speeds (between 2800 & 3200 RPM's) with the fans on? Mine will kick on at 185 and they will continue to run up to 210 or so until I idle back down.

[1967Tempest]

Originally Posted by Gary D

I like the video!
I still have the question. Do you heat up at Hwy speeds (between 2800 & 3200 RPM's) with the fans on? Mine will kick on at 185 and they will continue to run up to 210 or so until I idle back down.

Well go figure, I was out there running some engine flush and I found that one of the block freeze plugs leaks now. I can't win on this wagon....

But it runs cold.....


My Tempest never gets hot on the high way under normal conditions. I am not talking about this 100* crap. It has the Mark VIII. I have the low on at 195* which is supposed to be for the high, but I have the wrong temp sensor. But on high, the car never gets over 190* at idle even in this heat. Make sure that you don't have anything in the way for air movement. Because at high way speeds you should have more than enough air through the rad to help it cool down. What do you have for set-up and your rear end ratio.

I need more information to help with your problem.

Dave

[grandville455]

Originally Posted by 1967Tempest

Another success story. Here is the fan working. heat index over 100*. The car would get cooler if I was moving!!!


http://www.youtube.com/watch?v=a0nvSXyljGo

why the hell couldn't mine do that!!

[1967Tempest]

Well I did notice one thing. It seems that not all mark VIII fans are created equal the one in the Tempest seems to run slower than the one in the Catalina. They have different part #'s!!!

More to come as I research this......

THANKS!

[grandville455]

Originally Posted by 1967Tempest

Well I did notice one thing. It seems that not all mark VIII fans are created equal the one in the Tempest seems to run slower than the one in the Catalina. They have different part #'s!!!

More to come as I research this......

THANKS!

whats your part numbers?

[1967Tempest]

Tempest 110-02
Catalina 110-03

I can get the full part numbers if you need them.

But the Tempest runs right at around 170* in this heat. BUT, I will try to find the faster one for a replacement!!!

I will take a vid of both so you can see the difference.

Dave

[grandville455]

where are those numbers at? what size pulleys u running? I have a 6 1/4 or so water pump and then the billet 6" on the bottom I know that bottom is hurting it some as it came with a 8"
Mine is F4SH 8C607 AA

[Gary D]

Originally Posted by 1967Tempest

Well go figure, I was out there running some engine flush and I found that one of the block freeze plugs leaks now. I can't win on this wagon....

But it runs cold.....


My Tempest never gets hot on the high way under normal conditions. I am not talking about this 100* crap. It has the Mark VIII. I have the low on at 195* which is supposed to be for the high, but I have the wrong temp sensor. But on high, the car never gets over 190* at idle even in this heat. Make sure that you don't have anything in the way for air movement. Because at high way speeds you should have more than enough air through the rad to help it cool down. What do you have for set-up and your rear end ratio.

I need more information to help with your problem.

Dave

You can see my car description on another thread "67 GTO 455 RAIV electric everything" - in the Heating & Cooling TECH forum. I just posted it on the 4th. Iam running 3:42 gears with 24" tall TA's

[grandville455]

I just orderd a 8" pulley from cvfracing my current setup is only .96 and this will take it back to 1.28!... has to be alot of issues!

[1967Tempest]

Originally Posted by grandville455

I just orderd a 8" pulley from cvfracing my current setup is only .96 and this will take it back to 1.28!... has to be alot of issues!

What are those numbers? 60 foot times? Revolution of under/overdrive??

I will take a picture of above part numbers.

As soon as I drive the car in the above video it almost overheats!! I think I have a sludge/rad cap problem. More to come. But it idles cold!@!!!

[grandville455]

[QUOTE=1967Tempest;4038323]What are those numbers? 60 foot times? Revolution of under/overdrive??

that is correct.It is currently being underdriven with my 6" crank pulley, with the 8" it will be like it was stock or last year, be a good test to see if in fact it does cool better By speeding up the water pump, then I may try that fan again?
Yea that is how this test went the first time it would stay at 170 in the garage ,but get it out driving it would heat up, But My 180 sensor didn't seem to come on til 195 according to my temp gauge and the laser gun. so then driving down the highway with fan on high it was still around 190! I just don't like it that hot,lol..
Question on my autometer sensor if it spins at top where u put the wire is that bad? or is that normal for that sensor? what kind do u have?

[1967Tempest]

I have the one that Hollister sold me. Not sure of the manufacturer. But the Wagon is running on 2 toggle switches.

I talked to Hollister. No need for an on-off-on switch as,you when you turn the fan from low to high, the low shuts off. This way you can turn the low when the car gets to around 150* and leave it on. When need turn it on high.

HTH,
Dave

[grandville455]

Yea, But don't u have a seperate sensor for your gauge tho?... So u are runnign two toggles and not using the sensor to kick in the fan at a set temp?

[1967Tempest]

Originally Posted by grandville455

Yea, But don't u have a seperate sensor for your gauge tho?... So u are runnign two toggles and not using the sensor to kick in the fan at a set temp?

Tempest:
Gauge is mechanical in 1 port in crossover. HIGH sensor is in other port of crossover, but hooked up to low speed. (got the wrong one) High runs off of a toggle.

Catalina:
Low off of one toggle , HIGH off of another. Mechanical gauge. Intake only has one port.

If you want serious cooling, it should be the other way around for your pulleys. 8" crank. 6" water pump. This will over drive the pump by 1.5~ish. More like an AC set-up.

HTH,
Dave

[grandville455]

Originally Posted by 1967Tempest

Tempest:
Gauge is mechanical in 1 port in crossover. HIGH sensor is in other port of crossover, but hooked up to low speed. (got the wrong one) High runs off of a toggle.

Catalina:
Low off of one toggle , HIGH off of another. Mechanical gauge. Intake only has one port.

If you want serious cooling, it should be the other way around for your pulleys. 8" crank. 6" water pump. This will over drive the pump by 1.5~ish. More like an AC set-up.

HTH,
Dave

well that is how I ran mine was low speed with sensor high with toggle, but for some reason it showed 195 on my autometer temp gauge when it kicked on.. Not sure if that sensor was funky or what? Cause the one Dave from hollister sent was tested to open at 181!.. Do U use any sealant on yours? The only reason I have the 6 " billet one is cause of my previous problems I am sure u read about late last fall with pulleys breaking which we now now was the crank harmonics! that is why I want to go back to the 8" and my 6.25 water pump to over drive it again!..

[1967Tempest]

Grandville455 has brought to my attention a test of the Mark VIII fan Vs. SPAL dual 11's.

http://forums.corvetteforum.com/c3-t...pal-duals.html

In trying to keep an honest view, it looks like the Mark VIII/Thunderbird fan only pulls 2700 CFM!!! Tom Dewitt, the tester, makes an excellent thread and an honest test. As I have had extremely great success with the Mark VIII fan, I would say that it is a toss up.

SPAL Dual 11's

PROS:
TECH support available
Company Reputation
Ease of purchase
Product WILL work and Cool

CONS:
Price ~400$ for fans and controllers
If it goes down, availability of repair parts

Mark VIII/Thunder Bird or Taurus Single 17 or 18"

PROS:
Price cheap (WHAT I PAID 30$ for fan 60$ for Controller,8$ for mounting hardware)
High availability
BIG cooling numbers for price

CONS:
Custom install
If used, reliability
NO TECH support other than forums/users

Knowing this data and using it going forward either one will cool your Poncho. Just how much you want to spend and how you want it to look. I only write this as a lot of people email me asking me the specs and how I installed this. I don't want to be biased.

HTH,
Dave

[grandville455]

EXCELLENT Dave!... Found this too on them, the true lincoln fans have a white socket on them where the plug goes in. the thunderbird/ cougar ones have a black socket and are two speed and have the same blade setup as the mark 8., just picked one up from a 93 mark 8

http://forums.corvetteforum.com/c3-t...ii-wiring.html

[Tripower455]

Well, that didn't work!

I finally got my throttle cable from Ames, and was able to put about 100 miles on the car.

After spending a bunch of cash, time and effort, I am right back where I started. Sorta.

Before, with the mech fan, HD clutch, 180 degree standard flow thermostat, AC shroud and Rodney Red, my temp when moving was 195. At stop lights, it would creep up to 210+, but as soon as I got it moving, it would go back down to 195. Always.

Now, my idle temp is 195 with the fan wide open, and my running temp creeps up to 210+. NOTHING has been changed on the engine. I have a Taurus fan, DCControls fan controller, baffling around the radiator.

I tried a high flow, 160 degree stat. No change.

I tried NO thermostat at all. No change except that it would take longer to cool off when idling!

I drive this car a lot, and this is simply getting frustrating. Heat has always been an issue. I fixed the idling issue with the electric fan, but now I have the opposite problem.


Oh, and I clearanced the water pump divider plate to touch without a gasket back when I put the engine together.