Author Topic: Cooling temperatures  (Read 2914 times)

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Falcon67

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Re: Cooling temperatures
« Reply #30 on: September 01, 2022, 02:11:02 PM »
The LT1 fan unit I use moves a lot of air.  And the fans are individual single speed units, 12V.  They draw some current but it is handled by 14 ga wire as I use a trailer plug/socket to connect the fan unit to the car.  Makes for easy removal.  The motors are OEM Delco units, should be available at any parts store.  This specific fan assembly was a gimme from a friend and one of the motors was dead.  $45 fixed it up. 

MRadke

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Re: Cooling temperatures
« Reply #31 on: September 01, 2022, 05:05:04 PM »
Is it safe to assume that upgrading the alternator is a requirement for the electric fans?

GerryP

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Re: Cooling temperatures
« Reply #32 on: September 01, 2022, 05:33:58 PM »
Yes, you must upgrade to at least a 100amp alternator.  Unless one is building a restoration, everyone should do the 3G alternator upgrade.  It is very easy, not very expensive, and puts out enough power that there are no more dimming headlights, sagging blower fan, or unusual stereo performance.  Everything electrical benefits from the upgrade.

Falcon67

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Re: Cooling temperatures
« Reply #33 on: September 02, 2022, 02:15:17 PM »
The car uses a small case 3G, so yes - you'd want a stouter replacement alternator.  I would not try to run all that with an old 50A external regulator setup. 

The OEM for that fan assembly seems to be "93-97 Camaro Firebird V8 LT1 5.7L Dual Cooling Fan Assembly".  Rockauto lists several aftermarket units.  The OEM looks like the best IMHO is you have the space.  The Four Seasons unit might be worth a look.  It's listed at $142 for the 97 Camaro 5.7L.

https://www.hawksmotorsports.com/93-97-camaro-firebird-lt1-electric-dual-fans-used/
https://www.rockauto.com/en/moreinfo.php?pk=3577956&cc=1035964&pt=2181&jsn=1490

Stangman

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Re: Cooling temperatures
« Reply #34 on: September 02, 2022, 07:39:49 PM »
hey Falcon you going to the reunion

427LX

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Re: Cooling temperatures
« Reply #35 on: September 03, 2022, 09:37:45 PM »
Does today's pump gas cause engines to run hotter than the leaded gas of 60's thru 1970? 

Stangman

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Re: Cooling temperatures
« Reply #36 on: September 03, 2022, 10:17:50 PM »
One thing I can say is when my car came off the road  the ethanol count around here in New York was 5 percent now it’s 10 percent. We will see what that does to the driving situation. I guess I could throw like a couple of gallons of race fuel in it. I got five gallons of c-12 a couple of days ago it was 125 bucks. Total robbery. Does anybody know how much fuel is at the track.

Falcon67

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Re: Cooling temperatures
« Reply #37 on: September 04, 2022, 11:31:53 AM »
>hey Falcon you going to the reunion
No, haven't made any travel plans other than the balloon festival in Albuquerque and some races this fall.

Yes, modern cars run hotter.  Keeps the oil clean, less emissions, makes the aluminum radiators work better.  Higher temps have also been tested and shown to reduce wear.

Fuel - everything here has been 10% for about 20 years.  I put Sta-bil in my 5 gallon jugs and haven't seen any issues.  I park the small engine stuff over winter and do nothing.  I have a 6500w generator for sale and it sat unused for 8 months, started on the 4th pull.  The Falcon uses about 60/40 VP110/91 pump.  No problems there lol.  If I put the 427W in it, it'd run either straight VP110 or methanol. That's a 12.5:1 motor so right on the edge for 110.

The drum of VP110 I bought this spring was $440.  So that's about $8.15/gallon.  Methanol was up around $220.  I could get that a little cheaper by driving 100 miles or so.

427LX

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Re: Cooling temperatures
« Reply #38 on: September 05, 2022, 10:07:55 AM »
Running a 427W in the tight compartment of a 1985 Mustang I found that adding hood louvers made a huge difference in maintaining engine and underhood temps.
I used to run the big electric fan deal but went back to the factory type clutch fan with a slightly more aggressive clutch. With 180 stat it stays in the 170-180 range.
Giving the hot airflow from radiator a path to escape helps greatly.

Stangman

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Re: Cooling temperatures
« Reply #39 on: September 05, 2022, 06:47:11 PM »
427lx I do agree with the louvers. They have the 67 GT 500 hood that fits the regular mustangs and some of them have louvers, but I think even having the scoop to let air out has to be good. I think I remember Ross saying the same thing.

galaxiex

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Re: Cooling temperatures
« Reply #40 on: September 05, 2022, 08:13:28 PM »
I ran a 68 Mustang with a 428 and stock cooling system.

Car had a repro Shelby hood with the louvers.

Never had any overheat problems.
Every 20 minute job is 1 broken bolt away from becoming a 3 day ordeal.