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Author
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Topic: Is 195 to hot ?
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Fastymz
Moderator Posts: 19583
From: Reno Nv USA MEM#1240
Registered: Apr 2001
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posted 06-16-2004 08:04 PM
   
For the first time today after doing alittle hard driving. My car got to about 195-200 and then would cool right back when I would drive it. I did change the cap from a 12lbs to a 13lbs because the other cap keep filling up the overful and the new one doesn't. Not sure if thats good or bad. Other wise the motor as always stayed at 180-185 until today. Now keep in mind it's high humidity and about 90 degrees out. ------------------
SCOOP oddly obsessed with big scoops on little Mustangs 65 coupe,351w,C4,Big Boss 429 hood scoop,8" 3.40 TracLoc. My Pics
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Moneymaker
Administrator Posts: 26513
From: Lyons, IL, USA
Registered: May 99
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posted 06-16-2004 08:40 PM
Up to 200 is "safe" Ron.------------------
Alex Denysenko
Co-Administrator and Moderator NHRA/IHRA/SRA member and licensed Superstock driver
MCA member# 53321
NHRA and IHRA SS/LA & SS/MA National Record Holder '00,'01,'02,'03,& '04
First SS/MA in the TENS!
IHRA division 5 Superstock Champion
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28 The Barry of BarrysGrrl Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com
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smallblockcoupe
Journeyman Posts: 35
From: danville, ca, usa
Registered: Jun 2004
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posted 06-16-2004 09:23 PM
If up to 200 is safe, would it be better if it was cooler then 200? I was discussing it wiht a co worker and I was saying colder is better, he said hotter. I dont mean to steel your thread, but could you help me out?
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Fastymz
Moderator Posts: 19583
From: Reno Nv USA MEM#1240
Registered: Apr 2001
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posted 06-17-2004 02:15 AM
What rated cap should I run, is 13lbs ok.Thanks Alex, but if 200 is safe I'd like stay around 160-180. I'm now running a 180 stat will a 160 help to keep it from getting over 180 ? ------------------
SCOOP oddly obsessed with big scoops on little Mustangs 65 coupe,351w,C4,Big Boss 429 hood scoop,8" 3.40 TracLoc. My Pics
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indyphil
Gearhead Posts: 2516
From: Senoia, G.A. USA
Registered: Jul 2002
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posted 06-17-2004 07:10 AM
I think 13 lbs is fine, the spring on the 12lb cap was probably just old and tired.160 water would probably make a little more power, if the engine is hot it heats the air up as it tries to breath it in, so the engine gets less dense air+fuel and hence less power. Someone probably has a rule of thumb for %Hp per degree? Phil ------------------
'68 coupe, '66 289 C code
engine, edel 600cfm carb, performer intake, dual exhaust http://www.geocities.com/ottouk_77/68mustang.htm
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bluestreek
Gearhead Posts: 1724
From: Athens,GA
Registered: Jul 2001
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posted 06-17-2004 11:09 AM
I use 14 lbs cap myself. But If 13's not leaking you're fine. Rebuilds sometimes run a little warm for 500 miles or so and then calmed down. Mine stays around the "E" on the stock TEMP guage mostly but can go up about midway while in the staging lanes on 90-100 deg days. I have no idea what degrees that really is but it never spits up. When you tune a carb lean it tends to run warmer. ------------------
1966 Mustang Coupe: Custom glass hood and BIG scoop sits atop a 289 stroked to 331 c.i., Steel crank, rods and girdle, TFS alum. heads, Stealth 8020 intake, Xtreme 268 Solid Roller, Holley 750 HP, long tubes, 4speed, 9" 3.50 posi.
11.86 @ 116 mph (7.62 @ 93 mph)daily driver!
DanH
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72convertible
Gearhead Posts: 122
From: Ft. Myers , Florida
Registered: May 2004
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posted 06-17-2004 12:58 PM
Scoop,Just a thought. I cant really tell but in your pictures it looks like you have an electric fan. Make sure you didnt somehow turn the thermostat switch on the fan higher. Maybe your fan isnt kicking on early enough.
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SteveLaRiviere
Administrator Posts: 43791
From: Saco, Maine
Registered: May 99
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posted 06-17-2004 05:09 PM
quote:
Originally posted by Fastymz:
Thanks Alex, but if 200 is safe I'd like stay around 160-180. I'm now running a 180 stat will a 160 help to keep it from getting over 180 ?
Thermostats only regulate how quickly an engine gets up to a certain temperature, they don't have any control how high the terperature gets. The fact that your coolant gets back down to normal temperature after driving it hard tells you your cooling system is working well. ------------------
'70 Mustang Mach 1 351C 4V/FMX/3.25 Open
'70 Mustang Convertible 250 I6/3 speed/2.79 Open
'72 Mustang Sprint Hardtop 351C 4V/FMX/4.30 Trac Loc
'94 F-150 XL 5.8L/E4OD/3.55 Limited Slip
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Fastymz
Moderator Posts: 19583
From: Reno Nv USA MEM#1240
Registered: Apr 2001
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posted 06-17-2004 05:27 PM
Steve it was only at idle yesterday that it heated up. Once I took it back on the road taking it easy it came right back down to 180-185.
I just hate the idle of having to buy yet another radiator.If what I have now doesn't workout. So I was reaching for an easy sulotion. I just replaced the radiator,water pump,heater core and all the hoses. I have a 4 row now, so I guess the next step would be an alum model. I just can't see paying $500 for one. 
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SCOOPoddly obsessed with big scoops on little Mustangs 65 coupe,351w,C4,Big Boss 429 hood scoop,8" 3.40 TracLoc. My Pics [This message has been edited by Fastymz (edited 06-17-2004).]
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SteveLaRiviere
Administrator Posts: 43791
From: Saco, Maine
Registered: May 99
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posted 06-17-2004 06:07 PM
No, you are all set the way you are. 90 degrees and humid are extreme conditions to being idling around in. ------------------
'70 Mustang Mach 1 351C 4V/FMX/3.25 Open
'70 Mustang Convertible 250 I6/3 speed/2.79 Open
'72 Mustang Sprint Hardtop 351C 4V/FMX/4.30 Trac Loc
'94 F-150 XL 5.8L/E4OD/3.55 Limited Slip
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smallblockcoupe
Journeyman Posts: 35
From: danville, ca, usa
Registered: Jun 2004
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posted 06-17-2004 06:23 PM
Fastymz, I have an aluminum radiator that I got from summit for under $200. It's the summit brand but it works awesome. If you end up needing a new radiator I would highly recomend the summit brand aluminum radiators.
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Fastymz
Moderator Posts: 19583
From: Reno Nv USA MEM#1240
Registered: Apr 2001
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posted 06-17-2004 06:31 PM
But I don't think they have both the inlet and outlet on the passenger sides. If I'm wrong about that it would be worth looking into if needed.------------------
SCOOP oddly obsessed with big scoops on little Mustangs 65 coupe,351w,C4,Big Boss 429 hood scoop,8" 3.40 TracLoc. My Pics [This message has been edited by Fastymz (edited 06-17-2004).]
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Fordwiser
Gearhead Posts: 408
From: Metamora, Illinois
Registered: Dec 2000
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posted 06-17-2004 06:41 PM
Do you have any kind of shroud on it? At slow speeds, will help alot.Roger
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Fastymz
Moderator Posts: 19583
From: Reno Nv USA MEM#1240
Registered: Apr 2001
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posted 06-17-2004 06:45 PM
I use the black magic electric fan with a built in shroud. It pulls a lot of air too. ------------------
SCOOP oddly obsessed with big scoops on little Mustangs 65 coupe,351w,C4,Big Boss 429 hood scoop,8" 3.40 TracLoc. My Pics
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smallblockcoupe
Journeyman Posts: 35
From: danville, ca, usa
Registered: Jun 2004
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posted 06-17-2004 06:52 PM
Fastymz, you are correct. The top inlet is on the passenger side and the bottom inlet is on the drivers side. I ended up buying a water pump for a 70 351w which has the drivers side outlet. mike.
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Fastymz
Moderator Posts: 19583
From: Reno Nv USA MEM#1240
Registered: Apr 2001
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posted 06-17-2004 06:53 PM
quote:
Originally posted by smallblockcoupe:
Fastymz, you are correct. The top inlet is on the passenger side and the bottom inlet is on the drivers side. I ended up buying a water pump for a 70 351w which has the drivers side outlet. mike.
I could do that, but then I'd have to change my balancer too and my timing pointer.
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SCOOP oddly obsessed with big scoops on little Mustangs 65 coupe,351w,C4,Big Boss 429 hood scoop,8" 3.40 TracLoc. My Pics
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Fordwiser
Gearhead Posts: 408
From: Metamora, Illinois
Registered: Dec 2000
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posted 06-17-2004 07:48 PM
Ok, does the built in shroud seal up well to the back of the radiator? Air will leak through gaps alot easier then being pulled through the radiator, can cut down the efficiency of the fan alot.Roger
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Fastymz
Moderator Posts: 19583
From: Reno Nv USA MEM#1240
Registered: Apr 2001
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posted 06-17-2004 07:57 PM
Yeah it has a nice rubber seal all around it. So no air will get past it. Also the radiator has no openning around it either. Thanks for the help and tips.  ------------------
SCOOP oddly obsessed with big scoops on little Mustangs 65 coupe,351w,C4,Big Boss 429 hood scoop,8" 3.40 TracLoc. My Pics
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gunrocker
Gearhead Posts: 476
From: Colliers, WV,USA
Registered: Mar 2004
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posted 06-17-2004 10:26 PM
Scoop...Sounds to me what Steve said...90 degrees and sitting at idle is a pretty extreme temp to be sitting still in. That's like sitting in traffic...not enough air moving through the system. Once you get moving you have more of an air current passing through to cool things off.I think you'll be fine! ...gr P.S.- I thought it was DRY and no humidity in Nevada!  I went to school at UNLV in Vegas for a short while...LOVED the weather...NEVER sweat at all! [This message has been edited by gunrocker (edited 06-17-2004).]
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TomP
Gearhead Posts: 5822
From: Delta BC Canada
Registered: Dec 99
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posted 06-18-2004 02:47 AM
Scooper , sounds like it's fine to me. The 180 thermostat could be swapped for 160 but it won't have a big effect. High humidity for that area is what... 10% ? LOL I am planning to hit Reno for H.A.N again, i'll have to meet up with you and go for a ride.
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Fastymz
Moderator Posts: 19583
From: Reno Nv USA MEM#1240
Registered: Apr 2001
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posted 06-18-2004 11:13 AM
quote:
Originally posted by TomP:
Scooper , sounds like it's fine to me. The 180 thermostat could be swapped for 160 but it won't have a big effect. High humidity for that area is what... 10% ? LOL I am planning to hit Reno for H.A.N again, i'll have to meet up with you and go for a ride.
No we have had some thunder stroms over the last few days which always brings more humidity around 50-60% thats high for Reno. Cool let me know for sure and where your staying.
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SCOOP oddly obsessed with big scoops on little Mustangs 65 coupe,351w,C4,Big Boss 429 hood scoop,8" 3.40 TracLoc. My Pics
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