Tips on cooling

jwboner · 08-12-2001, 03:59 PM

I still have cooling problems down here in the houston heat. I have a 160 thermo, aluminum radiator, 2 electric fans, edelbrock water pump, and even use 40 below in the radiator. With 4.11 gears I run up to 210 on the freeway. Now is my problem the gears keeping the revs up too high for the radiator to keep up with? Do any of you guys have any tips of what works to keep these cars running cool? Thanks for any help

------------------
65 fastback
347 DFI injected, TFS heads, T5, 4.11 9", tc subframe conns, torq thrust D's
A little history lesson using today's tech.

Gearhead999 · 08-12-2001, 10:21 PM

Wow, sounds like you have everything you need. What pressure cap are you running?? Might be the best you can get in that darn heat. I run up to 200 on the highway here in Orlando when it is HOT out too. I run 3 row rad, elect. fan, shroud 160 thermostate and 15 lb cap.

thunderbolt · 08-12-2001, 10:28 PM

How about adding an oil cooler. Engine oil also works to cool the engine, so an oil cooler might help. That looks like a pretty hot set up you have and maybe you already have an oil cooler.

jwboner · 08-12-2001, 11:03 PM

Oh yeah I do have a 6 pass oil cooler, but it's not in the airflow due to clearance problems. I have it bolted near the driver side fender hoping there is enough air turbulence going down the road that it cools it a little bit. I have a 12lb cap now, should I go with a 15. I have heard that when you go with a higher cap that you increase the risk of coolant leaks due to the extra pressure. Thanks for the input.

gp001 · 08-12-2001, 11:48 PM

What trans do you have????
If you have an automatic it may be your problem, especially running the 4.11's. You may want to add a deep pan or a separate trans cooler. If you don't have an auto, it may just be the temp your car runs at with it's setup.

------------------
347 (Coast High short block), 279/284, TFS TW heads, Stealth, 750 Holley, Flowtech hdrs, Dr. Gas X, 2 Chmbr Flowmaster, MSD 6AL-Dist.& SS coil, March serpentine pulley system, Art Carr C-4 (Soon to be a Richmond 6 spd), Currie 9" w/3.50, alum Drv Shft, susp mods, Total Control subframes & tower braces, Trans Am Racing power dual master, 4 wheel disc, 17x8 Torqthrust II's
Something up my sleeve

In a 66 coupe

Brian Browning · 08-13-2001, 09:32 AM

I've never tried it myself. But some of the guys over on the corvette forum have said that Water Wetter has dropped their temps as much as 30 degrees. I don't know if this is the same stuff as 40 below? I'm not familiar with that???

------------------
65 convertible, bench seat, '66 289 Hi Po motor, 351 heads, headers, duals, shelby intake, petronix,
4 speed top loader, 389 rear, road demon

zach0 · 08-13-2001, 09:36 AM

what setting do you have your fan kicking on at

------------------
66 Mustang Black W/ Black
289 Hi-Po 65'heads, MSD
Lunati High lift Cam
750CFM Carb Heddman Headers, Hurst Shifter

Tom351 · 08-13-2001, 11:08 AM

Edited my post because I overlooked your radiator the first time.

------------------
67 Fastback - Arctic White Pearl paint
351W ,Trick Flow Aluminum Heads, Edelbrock TorkerII, Carter 750 CFM, Comp. Cam 477/510 219/233@.050, Performance Automatic C-4 Trans, 3.55 gears, Front Disc Brakes, 1-1/8" Fr. 3/4" rear sway bars.

My 351W Fastback

[This message has been edited by Tom351 (edited 08-13-2001).]

Rev · 08-13-2001, 10:03 PM

Not sure if my experience relates or not. When I first had my new set up, it acted the same as yours. I tried almost everythig it seemed like. my problem was that my machine shop did a poor job of cleaning out the cooling passages in the block. my new engine, with supposedly clean internals quickly clogged up my new radiator.

When I finally figured out the problem after water wetter, 40 blelow, electric fans, auxillary air intakes to the radiator, high capacity water pumps, etc., etc........it was a clogged up, brand new radiator. A new one fxed it. The "old" new one was 70% occluded.

I had that one "rodded out" but finally just sprang for a new one. No problems since. Check out the top of your radiator.

Rev

------------------
'66 Coupe, 306, 300 HP, C-4, 13.97 e.t., 100.3 mph
1/4 mi.

thunderbolt · 08-13-2001, 10:13 PM

Got to agree with Rev on this one, check to see if you had a clean engine. On your oil cooler, I would add an auxillary fan for it as well since it isn't in the air stream. Or could you mount it like the power steering coolers on 69 and later cars?

jwboner · 08-14-2001, 12:29 PM

I have a BW T-10 4spd right now and have a T5 ready to drop in, just hope it holds up. I used to use water wetter but switched to 40 below. Some people say to use 2 cans of 40 Below but I'm only using one(that stuff's expensive for such a small can), I've also heard of Purple Ice in Jegs catalog but don't know what works best. Both fans are set to turn on @ 160, but hard to tell when they both turn on b/c if one is on they both turn even if only one is pulling/pushing. I'm putting an inline coolant filter in the upper hose to clean it out. I've had my old 4 row brass radiator rodded out about 3 different times but never really helped so I turned to alum. How is 69 power steering coolers mounted? I've already modified the gravel shield to accomodate an a/c condenser and the front fan, but don't have the a/c in yet. I've been waiting to cure the problem at hand first. You are all giving good advise and will try them this weekend.

------------------
65 fastback
347 DFI injected, TFS heads, T5, 4.11 9", tc subframe conns, torq thrust D's
A little history lesson using today's tech.

jwboner · 08-14-2001, 12:58 PM

One more thing I forgot is that I bought an electrolysis protection cap. Part #C5ZZ-8100-RC-C from Scott Drake. It has some numbers on the top "14" on one side and "R-12" on the other. Is the cap a 14lb cap or do they mean anything at all? Also it doesn't have the gasket relief valve for a coolant return, can I just put one on it(if possible without tearing it up) or is it a different design that won't work with one no matter.
Thanks

thunderbolt · 08-14-2001, 10:22 PM

On that oil cooler mounting, I'll see if I can describe it. They mount the ps cooler vertically from the ac compressor if ac equipped or vertically where the ac compressor would be so that it sticks into the airstream from the radiator fan. It sits about 6 inches behind the fan. Not nearly as good as an aux fan in my opinion, but does get it into an area of airflow.

08-12-2001, 03:59 PM	#1
jwboner Registered Member Join Date: Jun 2001 Location: Under the hood Posts: 164	Tips on cooling I still have cooling problems down here in the houston heat. I have a 160 thermo, aluminum radiator, 2 electric fans, edelbrock water pump, and even use 40 below in the radiator. With 4.11 gears I run up to 210 on the freeway. Now is my problem the gears keeping the revs up too high for the radiator to keep up with? Do any of you guys have any tips of what works to keep these cars running cool? Thanks for any help ------------------ 65 fastback 347 DFI injected, TFS heads, T5, 4.11 9", tc subframe conns, torq thrust D's A little history lesson using today's tech.

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08-12-2001, 10:21 PM	#2
Gearhead999 Registered Member Join Date: Sep 1998 Location: Oviedo, FL Posts: 992	Wow, sounds like you have everything you need. What pressure cap are you running?? Might be the best you can get in that darn heat. I run up to 200 on the highway here in Orlando when it is HOT out too. I run 3 row rad, elect. fan, shroud 160 thermostate and 15 lb cap.

08-12-2001, 10:28 PM	#3
thunderbolt Registered Member Join Date: Oct 1998 Location: Houston, TX, USA Posts: 380	How about adding an oil cooler. Engine oil also works to cool the engine, so an oil cooler might help. That looks like a pretty hot set up you have and maybe you already have an oil cooler.

08-12-2001, 11:03 PM	#4
jwboner Registered Member Join Date: Jun 2001 Location: Under the hood Posts: 164	Oh yeah I do have a 6 pass oil cooler, but it's not in the airflow due to clearance problems. I have it bolted near the driver side fender hoping there is enough air turbulence going down the road that it cools it a little bit. I have a 12lb cap now, should I go with a 15. I have heard that when you go with a higher cap that you increase the risk of coolant leaks due to the extra pressure. Thanks for the input.

08-12-2001, 11:48 PM	#5
gp001 Registered Member Join Date: Nov 2000 Location: So. Cal. Posts: 244	What trans do you have???? If you have an automatic it may be your problem, especially running the 4.11's. You may want to add a deep pan or a separate trans cooler. If you don't have an auto, it may just be the temp your car runs at with it's setup. ------------------ 347 (Coast High short block), 279/284, TFS TW heads, Stealth, 750 Holley, Flowtech hdrs, Dr. Gas X, 2 Chmbr Flowmaster, MSD 6AL-Dist.& SS coil, March serpentine pulley system, Art Carr C-4 (Soon to be a Richmond 6 spd), Currie 9" w/3.50, alum Drv Shft, susp mods, Total Control subframes & tower braces, Trans Am Racing power dual master, 4 wheel disc, 17x8 Torqthrust II's Something up my sleeve In a 66 coupe

08-13-2001, 09:32 AM	#6
Brian Browning Registered Member Join Date: Sep 2000 Location: Hattiesburg, MS, USA Posts: 86	I've never tried it myself. But some of the guys over on the corvette forum have said that Water Wetter has dropped their temps as much as 30 degrees. I don't know if this is the same stuff as 40 below? I'm not familiar with that??? ------------------ 65 convertible, bench seat, '66 289 Hi Po motor, 351 heads, headers, duals, shelby intake, petronix, 4 speed top loader, 389 rear, road demon

08-13-2001, 09:36 AM	#7
zach0 Registered Member Join Date: Apr 2001 Location: Hampton, Virginia Posts: 227	what setting do you have your fan kicking on at ------------------ 66 Mustang Black W/ Black 289 Hi-Po 65'heads, MSD Lunati High lift Cam 750CFM Carb Heddman Headers, Hurst Shifter

08-13-2001, 11:08 AM	#8
Tom351 Registered Member Join Date: Oct 2000 Location: Atlanta,GA,USA Posts: 278	Edited my post because I overlooked your radiator the first time. ------------------ 67 Fastback - Arctic White Pearl paint 351W ,Trick Flow Aluminum Heads, Edelbrock TorkerII, Carter 750 CFM, Comp. Cam 477/510 219/233@.050, Performance Automatic C-4 Trans, 3.55 gears, Front Disc Brakes, 1-1/8" Fr. 3/4" rear sway bars. My 351W Fastback [This message has been edited by Tom351 (edited 08-13-2001).]

08-13-2001, 10:03 PM	#9
Rev Registered Member Join Date: Nov 1998 Location: Houston, Tx. Posts: 3,887	Not sure if my experience relates or not. When I first had my new set up, it acted the same as yours. I tried almost everythig it seemed like. my problem was that my machine shop did a poor job of cleaning out the cooling passages in the block. my new engine, with supposedly clean internals quickly clogged up my new radiator. When I finally figured out the problem after water wetter, 40 blelow, electric fans, auxillary air intakes to the radiator, high capacity water pumps, etc., etc........it was a clogged up, brand new radiator. A new one fxed it. The "old" new one was 70% occluded. I had that one "rodded out" but finally just sprang for a new one. No problems since. Check out the top of your radiator. Rev ------------------ '66 Coupe, 306, 300 HP, C-4, 13.97 e.t., 100.3 mph 1/4 mi.

08-13-2001, 10:13 PM	#10
thunderbolt Registered Member Join Date: Oct 1998 Location: Houston, TX, USA Posts: 380	Got to agree with Rev on this one, check to see if you had a clean engine. On your oil cooler, I would add an auxillary fan for it as well since it isn't in the air stream. Or could you mount it like the power steering coolers on 69 and later cars?

08-14-2001, 12:29 PM	#11
jwboner Registered Member Join Date: Jun 2001 Location: Under the hood Posts: 164	I have a BW T-10 4spd right now and have a T5 ready to drop in, just hope it holds up. I used to use water wetter but switched to 40 below. Some people say to use 2 cans of 40 Below but I'm only using one(that stuff's expensive for such a small can), I've also heard of Purple Ice in Jegs catalog but don't know what works best. Both fans are set to turn on @ 160, but hard to tell when they both turn on b/c if one is on they both turn even if only one is pulling/pushing. I'm putting an inline coolant filter in the upper hose to clean it out. I've had my old 4 row brass radiator rodded out about 3 different times but never really helped so I turned to alum. How is 69 power steering coolers mounted? I've already modified the gravel shield to accomodate an a/c condenser and the front fan, but don't have the a/c in yet. I've been waiting to cure the problem at hand first. You are all giving good advise and will try them this weekend. ------------------ 65 fastback 347 DFI injected, TFS heads, T5, 4.11 9", tc subframe conns, torq thrust D's A little history lesson using today's tech.

08-14-2001, 12:58 PM	#12
jwboner Registered Member Join Date: Jun 2001 Location: Under the hood Posts: 164	One more thing I forgot is that I bought an electrolysis protection cap. Part #C5ZZ-8100-RC-C from Scott Drake. It has some numbers on the top "14" on one side and "R-12" on the other. Is the cap a 14lb cap or do they mean anything at all? Also it doesn't have the gasket relief valve for a coolant return, can I just put one on it(if possible without tearing it up) or is it a different design that won't work with one no matter. Thanks

08-14-2001, 10:22 PM	#13
thunderbolt Registered Member Join Date: Oct 1998 Location: Houston, TX, USA Posts: 380	On that oil cooler mounting, I'll see if I can describe it. They mount the ps cooler vertically from the ac compressor if ac equipped or vertically where the ac compressor would be so that it sticks into the airstream from the radiator fan. It sits about 6 inches behind the fan. Not nearly as good as an aux fan in my opinion, but does get it into an area of airflow.