h4nd Posted Wednesday at 07:36 Report Share Posted Wednesday at 07:36 If only there was a convenient source of smoke on the vehicle, so you could video and watch the airflow 1 1 2 Quote Link to comment Share on other sites More sharing options...
Stu Posted Wednesday at 09:08 Report Share Posted Wednesday at 09:08 ^ This test will need to repeated several times so we have an adequate data pool to draw conclusions from. Just saying @Roman can be on graph duty 4 1 Quote Link to comment Share on other sites More sharing options...
KKtrips Posted Wednesday at 10:06 Report Share Posted Wednesday at 10:06 Joining the helpful suggestion team, whats the AFR like at idle? can you fatten it up a bit? Lean equals HOT water temps. If that is not an issue, then if you are looking for a fan that moves MUCHO air, then go to Pickapart and look at the Volvo's grab their fan, the wiring and relays. They are super simple to figure out and they have 2 speeds fucking fast, and even faster again, sounds like a fuckin Fokker Friendship taxi-ing for take off. https://www.therangerstation.com/tech_library/volvo_electric_fan.shtml 3 Quote Link to comment Share on other sites More sharing options...
KKtrips Posted Wednesday at 10:12 Report Share Posted Wednesday at 10:12 The fan unit look like this - all the wiring a direct positive and negative feed to the battery and a pair of wires back to a 2 stage toggle switch in dash (With my new motor I am going to wire one side to a thermo switch so stage 1 will turn on automatically and put stage 2 to an override for when I notice it getting a bit scorchy) 3 Quote Link to comment Share on other sites More sharing options...
cletus Posted Wednesday at 10:16 Report Share Posted Wednesday at 10:16 Do you know how thick the fan is at the motor? That's the reason I haven't fitted a big electric fan, the rad is fairly close to the water pump pulley Quote Link to comment Share on other sites More sharing options...
cletus Posted Wednesday at 10:18 Report Share Posted Wednesday at 10:18 5 hours ago, RUNAMUCK said: Possibly a derp question, But are you 100% certain your 1960s guage is reading correctly? I've had issues in the past with ancient factory guages. Is the sender a proper match to the guage as well? Yeah, it's a new auto meter gauge, and it boils over at the temp you would expect 1 Quote Link to comment Share on other sites More sharing options...
KKtrips Posted Wednesday at 10:26 Report Share Posted Wednesday at 10:26 2 minutes ago, cletus said: Do you know how thick the fan is at the motor? That's the reason I haven't fitted a big electric fan, the rad is fairly close to the water pump pulley My guess is that it is thinner than that shroud looks in the photos, but they are a bit thicker than I'd like, but only at the fan motor, however I did have to change the bolts holding my water pump on to countersunk jobbies to give me enough clearance. But I also have a dumb front crossmember that gets in the way and had to make a weird shaped fan shroud which spaced the fan blades an inch away from the radiator fins. TLDR - the fan blades and housing are not crazy thick, bu the motor is chunky, I can measure on Friday day and give you some actual measurements. They are actually a huge diameter though and if I mount it flat against my radiator, an inch of fan blade would sit above or below the radiator fins. 2 1 Quote Link to comment Share on other sites More sharing options...
KKtrips Posted Wednesday at 10:34 Report Share Posted Wednesday at 10:34 Just got the dimensions from the internet. Please excuse the freedom units. Once removed from the shroud, this fan is about 4 inches deep from the end of the motor to the furthest point on the front of the fan. After it is removed, you'll find that the OUTER RING is about 17.5 inches across. The actual fan blade portion diameter on this fan is 388 mm (15.27 inches) 1 1 Quote Link to comment Share on other sites More sharing options...
cletus Posted Wednesday at 10:40 Report Share Posted Wednesday at 10:40 I think I found the same 1998 spec website, haha Thanks. Its quite neat that the fan unbolts from the rest of the shroud Quote Link to comment Share on other sites More sharing options...
MaxPower Posted Thursday at 08:32 Report Share Posted Thursday at 08:32 Have you tried going for a drive with the hood off? Does it still boil over at idle with the bonnet up? Is it worth going to an electric water pump so you can run a big fuck off electric fan? Quote Link to comment Share on other sites More sharing options...
cletus Posted Thursday at 09:55 Report Share Posted Thursday at 09:55 Still gets hot with the hood up, I haven't removed it. Driving around it's not too bad, it's more an idling and not moving issue Hadn't really considered an EWP yet Quote Link to comment Share on other sites More sharing options...
KKtrips Posted Friday at 11:50 Report Share Posted Friday at 11:50 There are some thoroughly hairy mopars running around without an EWP and not overheating, so it has to be either a water to air-flow issue or tuning issue. I'm leaning towards air-flow cos Clint ain't no dummy and the tuning issues should be within a range that it won't fuck with the temps, so either there isn't enough cool air passing over the rad or the water is not in the rad long enough to cool down. When you pulled t-stat out, did you leave a restrictor in place? Quote Link to comment Share on other sites More sharing options...
Hemi Posted Friday at 13:01 Report Share Posted Friday at 13:01 I've only skim read, but you mentioned something about the intercooler could you add side thingies to it so the fan is pulling straight through the "assembly" instead of just the rad being the one with the pull. I'm Wondering if there's turbulence of pull through the intercooler vs pull going around/ under it. Prob not, don't have wind tunnel. Do you have oil temp and coolant gauges, can tell you heaps as the oil is usually way.more stable so if both are xx and then coolant jumps up but the oil stays the same after half and hour then maybe it is a flow issue? Iunno too many beers deep now. Oh, and are you sure you don't have a rag in one of the rad fittings. Don't laugh, it has happened. 2 Quote Link to comment Share on other sites More sharing options...
Hemi Posted Friday at 13:02 Report Share Posted Friday at 13:02 1 hour ago, KKtrips said: There are some thoroughly hairy mopars running around without an EWP and not overheating, so it has to be either a water to air-flow issue or tuning issue. I'm leaning towards air-flow cos Clint ain't no dummy and the tuning issues should be within a range that it won't fuck with the temps, so either there isn't enough cool air passing over the rad or the water is not in the rad long enough to cool down. When you pulled t-stat out, did you leave a restrictor in place? This s is a good point, don't you have a ir thermometer? Check the in vs out temp Quote Link to comment Share on other sites More sharing options...
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