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Still to HOT help. #459185 09/04/09 04:50 PM 09/04/09 04:50 PM
Joined: Dec 2008 Posts: 55 Indiana rapid67rt OP member
rapid67rt OP member Joined: Dec 2008 Posts: 55 Indiana	A-body 493 stroker had a real bad overheating problem. Changed from a 22" to 26" aflo performance series radiator, perma cool electric fan 2950 cfm. I'm running a meziere electric waterpump. I went with the zerex o5 mixed 50/50 and waterweter. This is on the street now... 185-190 running down the road. stoplight's 200-210+. It seems to recover once I begin to move back to 185-190. I feel this is still to hot? Gottta be enough radiator? Go back to a stock water pump? 180 thermostat from napa.

Re: Still to HOT help. [Re: rapid67rt] #459186 09/04/09 04:53 PM 09/04/09 04:53 PM
Joined: Nov 2004 Posts: 843 Suffolk,VA I ireland383 super stock
ireland383 super stock I Joined: Nov 2004 Posts: 843 Suffolk,VA	You could possibly have air in the system. Did you drill a 1/8" hole in the thermostat to bleed air? Last edited by ireland383; 09/04/09 05:07 PM.

Re: Still to HOT help. [Re: rapid67rt] #459187 09/04/09 05:00 PM 09/04/09 05:00 PM
Joined: Jan 2003 Posts: 5,443 Indiana Y YO7_A66 master
YO7_A66 master Y Joined: Jan 2003 Posts: 5,443 Indiana	Do you have a fan shroud? 1970 YO7 A66 [Canadian Export] F8 Challenger 340 (Currently in shop for stroker assy.)

Re: Still to HOT help. [Re: YO7_A66] #459188 09/04/09 05:07 PM 09/04/09 05:07 PM
Joined: Jun 2004 Posts: 3,375 St. Charles, MO wingman Uncreative Title
wingman Uncreative Title Joined: Jun 2004 Posts: 3,375 St. Charles, MO	If it were mine I would suspect the electric WP. It wouldn't be too hard to swap back to the old one and try it. 1969 Dodge Coronet Super Bee 383 A4 1970 Plymouth Road Runner 440 FC7 (sold)

Re: Still to HOT help. [Re: rapid67rt] #459189 09/04/09 05:18 PM 09/04/09 05:18 PM
Joined: Dec 2008 Posts: 55 Indiana rapid67rt OP member
rapid67rt OP member Joined: Dec 2008 Posts: 55 Indiana	No shroud, never heard of drilling a 1/8 hole in thermostat but I'll give it a try. Where can i pick up a aftermarket shroud?

Re: Still to HOT help. [Re: rapid67rt] #459190 09/04/09 06:09 PM 09/04/09 06:09 PM
Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska	Quote: 185-190 running down the road. stoplight's 200-210+. It seems to recover once I begin to move back to 185-190. (At idle) either the elec pump is not moving the water fast enough or not enough airflow thru the rad or a combination of both. Unless elec WP's are inadequate at idle(never used one) I'd suspect (lack of) airflow. Need a shroud and a properly spaced thermal clutch fan live every 24 hour block of time like it's your last day on earth

Re: Still to HOT help. [Re: RapidRobert] #459191 09/04/09 06:18 PM 09/04/09 06:18 PM
Joined: Feb 2008 Posts: 992 Simi Valley, CA MoparJ super stock
MoparJ super stock Joined: Feb 2008 Posts: 992 Simi Valley, CA	All things considered, 185-190 running is perfect. 200 at speed on really hot days isnt even that bad. 200-210 on warm to hot days at idle or at a stop light isnt really considered overly hot as well. Some like to keep it cooler, but those temps are ok and not causing any damage or issues. Its when temps get over 220 that I would begin to get a tad concerned. 2016 Ram 1500 Crew Cab: 5.7, 65RFE, 4.56 gears with locker, Hemifever tuned, AFE intake, 87mm throttle body, JBA headers, 3" Flowmaster exhaust, split to dual 2.5" exits. 13.57 best ET so far. Searching for new A or B Body Project!

Re: Still to HOT help. [Re: rapid67rt] #459192 09/04/09 07:16 PM 09/04/09 07:16 PM
Joined: Sep 2005 Posts: 6,516 Santa Cruz, California L Lefty master
Lefty master L Joined: Sep 2005 Posts: 6,516 Santa Cruz, California	Quote: It seems to recover once I begin to move back to 185-190 That tells you it's an air flow problem. I had to add a pusher fan on the front side of the radiator because of the same problem. I offset the two fans to different sides of the radiator. You could try a shroud but that might not be enough. Puller - Pusher -

Re: Still to HOT help. [Re: Lefty] #459193 09/05/09 07:25 AM 09/05/09 07:25 AM
Joined: Dec 2004 Posts: 5,278 San Jose, California D DennisH Vacation
DennisH Vacation D Joined: Dec 2004 Posts: 5,278 San Jose, California	210 is OK. Forget all the fancy stuff. Run stock clutch fan, shroud etc. 180 SuperStat from Napa.

Re: Still to HOT help. [Re: DennisH ] #459194 09/05/09 07:38 AM 09/05/09 07:38 AM
Joined: Jan 2004 Posts: 3,001 Coram, NY Pool Fixer master
Pool Fixer master Joined: Jan 2004 Posts: 3,001 Coram, NY	Unless you are running an OE electric fan or a SPAL, i don't think you are getting near that cfm you posted. I'd spend a few bucks on a nice set of SPAL fans or use one of the many OE fans discussed on moparts in other threads. If you searched, you would find many options. guys are running everything from minivan fans to lincoln mark VIII fans to mercedes fans....oe's seem to be really good fans. edit...what about putting one of those square house fans in front of the car idling in your driveway to test. If it stays cool, you know you need more airflow. At worst you could eliminate airflow as the culprit Last edited by dkn1997; 09/05/09 07:39 AM.

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