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  #161  
Old 12-07-2017, 05:57 PM
Red77 Red77 is offline
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I'm watching this closely. I need to sort out the cooling on my big block too and the Mk VIII fans are getting harder to come by. The Impala fans look like they were made for it. Great idea!
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  #162  
Old 12-08-2017, 05:22 AM
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spent more time working on my shop stove, but did touch this
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  #163  
Old 12-08-2017, 05:24 AM
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Quote:
Originally Posted by Red77 View Post
I'm watching this closely. I need to sort out the cooling on my big block too and the Mk VIII fans are getting harder to come by. The Impala fans look like they were made for it. Great idea!

Each fan flows 1864 cfm at low speed and up to 2500 cfm at full song, it uses 14.5 or 20 amps depending on the speed. not just that but the GM fan is capable of being run at 24 volts. That's not all, they're a curved blade so they're quieter and if you get the plugs and relays - they're waterproof.

best of all? they're $88.00 for 2 fans and the shroud brand new. With that said, I'd try to find a wrecking yard version first since GM has far better quality.
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  #164  
Old 12-08-2017, 03:12 PM
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whats the advantage of being able to run at 24v? just a better motor?
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  #165  
Old 12-09-2017, 09:42 PM
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mostly more efficient and it spins faster - it's like hooking 12v up to a 6v starter... in this case, it's designed for it so it doesn't let the smoke out
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  #166  
Old 12-10-2017, 03:10 AM
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bobs77vet bobs77vet is offline
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so are you going to supply 24v to them? to do that do you have a step up transformer that does that in the circuit or is the transformer an integral part of the fan?


guys put all sorts of bilge fans in the MG engine bays to keep the SUs cool
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  #167  
Old 12-10-2017, 02:59 PM
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at this point, I don't think I need to...
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  #168  
Old 12-11-2017, 05:43 AM
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I should be further along, I'm not but at least the plumbing is fixed in my house.....edited

worked a bit on a bunch of things
fuel system
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I don't know if it's a good idea or not.edited I hate the fuel smell of ss braided lines, so I'm using PTFE line.... which is great except the tank needs a vent.edited All I've found are either direct-open-to-atmosphere or are designed for 100 hp.edited So I've done it but I'm not convinced it's a good idea.editededited
In the roll-over valve I put a light spring to hold the ball against the vent.edited It can outgas under pressure from the cap, and draw through the vented (and filtered) roll over valve...edited

Got the tank out of the car
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and pulled the metal shield out
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so I could access the inner fenders and start cutting the fenders off
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which lead me to an admirable ADD-level distraction when I found that heat did a wonderful job of lifting the paint enough to scrape off
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then started working on fuel line and came to the conclusion that full -8 PTFE line would be a better choice so I ordered that
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and the bend that caused the issues
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  #169  
Old 12-12-2017, 05:35 AM
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I really do like these.... it's a hydramat from Holley. I run one in my FJ40 as well...
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these things really do work slick for getting fuel to the pickup and letting you completely, and utterly run out of gas.... I'm pretty sure it even sucks up the fumes.
Here's why I say that - my gas gauge, well, fixing it is just too much work in my FJ40 (what with the removing of the seat and pulling the lid off... too much work), but I've found that it'll start sputtering a couple miles before it is completely and truly out of gas (bet you no longer wonder why I always carry spare fuel). The last time, 16 gallon tank, 16.1 gallons to fill and it drove to the gas station. These things are pretty sweet - plus, while expensive, buying a new fuel tank with a sump, building surge canisters or filling your tank with foam is not cheap either, this is simply drop into the bottom with magnets on the corner and it's done.... best of all, it's also a pre-filter so you save the $50-$120 cost of a pre-filter.
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  #170  
Old 12-12-2017, 12:40 PM
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BBShark BBShark is offline
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Good idea. Never heard of a Hydramat before. I'm doing this now (fuel system), thanks for the tip.
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