Cooling Issue
#498772
10/16/09 04:58 PM
10/16/09 04:58 PM
|
Joined: Aug 2009
Posts: 16
New Zealand
vs2
OP
member
|
OP
member
Joined: Aug 2009
Posts: 16
New Zealand
|
Hi. Pretty new here but need some help. I'm just getting my car on the road but have a cooling issue. Has a 4 core, triple flow rad with twin SPAL 1780cfm fans and shrouding. Engine is a new KB588ci with Stage V heads. Problem: Just idling (as have yet to do roadtest) the car sometimes maintains a 190F temp, then other times it climbs to 205-210+ then I shut it off. Thermostat is a 180F one. Belts are not slipping and alternator is 180amp and charging circuit is good. One strange thing I do notice is that the outlet side of the rad is a lot cooler than the inlet side which make sense but then why am I overheating. It is almost like the water flow through the block is been restricted and flowing too slowly through the cooling system. There are no air blocks. Cheers. 
|
|
|
Re: Cooling Issue
[Re: stumpy]
#498774
10/16/09 06:01 PM
10/16/09 06:01 PM
|
Joined: Jan 2003
Posts: 5,907
Athens, Greece
Pyper70
master
|
master
Joined: Jan 2003
Posts: 5,907
Athens, Greece
|
Try some Royal Purple / Water Wetter. It drops the surface tension of your cooling system so the coolant flows better. It dropped my system 10 degrees. What size thermostat do you have? perhaps its a small throat and the water is restricted? What water pump do you have? If its the Non-AC then it has less fins and that will reduce your flow as well. With dual SPAL fans and a 4 core radiator that should not be happening.
I know its a lame question but you do have a spring installed on the lower radiator hose right?
How about jetting on the carb (or is it fuel injected) if its running lean you could be heating up from that
Family owned 1969 Charger R/T DualQuad 440/727/GVO/3.55s
|
|
|
Re: Cooling Issue
[Re: vs2]
#498775
10/16/09 06:34 PM
10/16/09 06:34 PM
|
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
RapidRobert
Circle Track
|
Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
|
Welcome to the site. Though 215 isn't a dealbreaker I too would be concerned about a 25+ temp change with no other changes. I'd take out the stat for a day & see what you get as it might be sticking slightly at different times just enough to slow the flow a bit (if so it wont fix itself & will possibly stick shut & you have way too much into your eng to risk it). Holler back when you find something.
live every 24 hour block of time like it's your last day on earth
|
|
|
Re: Cooling Issue
[Re: ireland383]
#498777
10/16/09 08:45 PM
10/16/09 08:45 PM
|
Joined: Oct 2003
Posts: 7,506
Az
Crizila
master
|
master
Joined: Oct 2003
Posts: 7,506
Az
|
All good suggestions and things to check / try, but keep in mind - just because you have a 4 core rad doesn't necessarily mean you have enough rad to handle that motor. Heat transfer efficiency drops way off with the 3rd core and less than 20% by the 4th core. Thats why aluminum rads with 2 large cores transfer more heat than 3/4 core brass rads. Just something to keep in mind after you have gone through all the other scenerios.
Fastest 300
|
|
|
Re: Cooling Issue
[Re: vs2]
#498785
10/21/09 10:07 AM
10/21/09 10:07 AM
|
Joined: Jan 2003
Posts: 1,938
Sonora CA
Mopar_Rich
top fuel
|
top fuel
Joined: Jan 2003
Posts: 1,938
Sonora CA
|
Quote:
Thanks and really appreciate all your input. I'm running F.A.S.T. EFI and the temps read within 3F of the cars Autometer (Cobalt) so we think its pretty accurate.
The FAST tune can have a dramatic effect on temp. This is what I do and I see this all the time. Make sure the A/F ratios are in the correct range and that you are running enough timing (retarded timing will cause heat). Obviously you have to make sure that the crankshaft ref angle in the software is correct, etc.
Download "setting up the fast XFI system" from my web site.
Good luck.
|
|
|
Re: Cooling Issue
[Re: RapidRobert]
#498788
10/22/09 02:12 AM
10/22/09 02:12 AM
|
Joined: Jan 2003
Posts: 27,471
So Cal
autoxcuda
Too Many Posts
|
Too Many Posts
Joined: Jan 2003
Posts: 27,471
So Cal
|
Quote:
Quote:
don't wast your money on water wetter or ice as once you put antifreeze in it does not help! works only in pure water!!
Can I use a can of water pump lube/antirust along with water wetter/ice for rust protection?
Yes, I have racers and customers that used Justice Brothers Super Radiator Cooler with Justice Brothers Cooling System Protector.
Real life test:
http://www.turbomagazine.com/features/0703_turp_cooling_system_additives/test_results.html
The Justice Brothers Cooling System Protector fights electrolysis, anti-rust, neutralizes acids, lubricates water pumps, and contains Supplemental Coolant Additives (SCA's)
|
|
|
Re: Cooling Issue
[Re: Mopar_Rich]
#498789
10/22/09 01:56 PM
10/22/09 01:56 PM
|
Joined: Aug 2009
Posts: 16
New Zealand
vs2
OP
member
|
OP
member
Joined: Aug 2009
Posts: 16
New Zealand
|
Quote:
Quote:
Thanks and really appreciate all your input. I'm running F.A.S.T. EFI and the temps read within 3F of the cars Autometer (Cobalt) so we think its pretty accurate.
The FAST tune can have a dramatic effect on temp. This is what I do and I see this all the time. Make sure the A/F ratios are in the correct range and that you are running enough timing (retarded timing will cause heat). Obviously you have to make sure that the crankshaft ref angle in the software is correct, etc.
Download "setting up the fast XFI system" from my web site.
Good luck.
Thanks for that. I have printed out your document and will give to tuner next week. Will post back the results.
http://www.candmperformance.co.nz/index.htm
|
|
|
|
|
and never have a problem when driven, I really wouldn't panic until it is driven.. Take it for drive and see what happens. If youhave a prolem then lookand see what it is, but really those temps are nothing to get a whole bunch of concerned about. The new vehicles run at those temps all the time. 
