Lately while sitting in traffic or having the car in park the temp will start to rise to 220-230. I bought a Griffin 2 row aluminum radiator and it has seemed to help going down the road the temp is around 160, but if I drive the car a good distance and sit in traffic, the temp will rise still. I have a 160* thermostat, my airdam isn't exactly angle right to force air up into the motor but that won't help anyways in traffic. I have a new radiator cap. This weekend I am going to take off my small crank pulley and put the stock one back on. Has anyone had a problem w/ a small crank pulley. I am guessing this is my problem, because it is slowing the water pump down too much at idle to flow adequate water. Also I was told that I have a short in my system that is causing my alternator to squeal when I have my lights on, which drops my volts, could this be related in any way to my temp. problem.

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'86 IROC
T-TOPS, TINTED WINDOWS, BRAKE LIGHT BLACKOUTS
GM GOODWRENCH 350
EDELBROCK TES HEADERS
FLOWMASTER
EDELBROCK 600CFM CARB.
KN AIRFILTER
UNDERDRIVE PULLEY
ACCEL HEI DISTRIBUTOR
2:73 GEARS

 

is your fan working? is the air flow through the radiator blocked? is your gauge accurate? the low voltage may play a part in the fan not working or spinning fast enough.

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ICON Motorsports

1st & 3rd
MM Black Diamond 538 F&AM

 

Just because your altenator squeals when you have your lights on doesnt mean you have a short. All that means is either your belt isnt tight enough or your belt needs replaced. Underdrive pulleys will effect it to.

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We are the future, the 21st. century dislexyic, glue sniffing, cyber *****, with homicidal minds and handguns.

 

The belt is totally tight, and it is new. I have a manual fan by the way, I had put an electric 2400 cfm fan on the old radiator but that didn't help, so I just stuck w/ the manual one. There is nothing blocking the radiator, plus I have a tranny cooler.

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'86 IROC
T-TOPS, TINTED WINDOWS, BRAKE LIGHT BLACKOUTS
GM GOODWRENCH 350
EDELBROCK TES HEADERS
FLOWMASTER
EDELBROCK 600CFM CARB.
KN AIRFILTER
UNDERDRIVE PULLEY
ACCEL HEI DISTRIBUTOR
2:73 GEARS

 

Running a fan shroud?

 

aahh factory fans run at 220 degrees u obviously gotta change the fan.

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92' camaro
New 305 block TPI conversion, Flat top pistons,Bore over .30 Forged parts all around,Edelbrock intake,ported plennum,ported corvette alluminum heads, accel cam,52mm throttle bodie, SLP runners Home aid cold air induction, Air foil,ford SVO 19lb injectors,fuel regulator,cloys timing chain, comp alluminum roller rocker arms and pushrods MSD 8.5 mm wires, bosch plattinum plugs, hypertech cap & rotor and coil, Edelbrock TES headers, free flowing catalytic converter and a 3 inch force II flowmaster exhaust system, and a 3 inch cutout,Zoom multi friction clutch, T-5 tranny,billenstien shocks&struts.
Soon to come!!!
Procharger system 12lbs o boost.
New paint job(hawaiin orchid purple)Cast alluminum ZR1 rims w/ 275 tires.
Favorite quote: "where ever u go, there u are"

Other car;
1971 plymouth Duster
Mods:340,edelbrock victor jr. intake, 650 4 barrel holley, heddman headers,40 series dual flowmasters, cold air intake,4:10 gears, just got a new paint job and cragar rims with 315 tires in the back.
:Yeah its not a chevy but damn how many 71' dusters have u seen in the streets.

 

Guess, I'll update this so others can see.

I found the problem, I put a smaller crank pulley on and it didn't have a slot for one of my belts, so I guess by running with one less belt, it was putting a strain on the alt/water pump thus not allowing it to spin as fast as it should.