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The Shop Truck

1971 Chevy C20 with a custom flat bed.
Overview Gallery Discussion
Today, we didn't work on the Shop Truck, it was weird.
In other news, the rebuilt turbo is back on the motor home and the Silverado has a couple new hoses for the ram (one was leaking). It was nice to work on something else, but none of my other vehicles are as clean to work on as the Shop Truck, especially not the SIlverado.
 
I heard back from Ron Davis, he has some better fans in stock that will bolt in, $405 each.
I also heard back from DeltaPAG, after a few e-mails back and forth and a bunch of pictures, he still hasn't answered why the fans don't work in my system but has offered to build me a custom radiator and shroud for $1950... That would replace the intercooler heat exchanger and the radiator, but still.
 
I would try the fans first. So I have read the post with the fan pictures a few times, I’m blind and can’t read I’m confused. I don’t get it.
 
Babaganoosh said:
I would try the fans first. So I have read the post with the fan pictures a few times, I’m blind and can’t read I’m confused. I don’t get it.
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I don't get it either, that's what I'm trying to get Mr DeltaPAG to explain. He corrected me on the flow rating for them, they're supposedly 3200CFM each compared to the Spals rating of 1918CFM.
 
r3dd0g said:
I don't get it either, that's what I'm trying to get Mr DeltaPAG to explain. He corrected me on the flow rating for them, they're supposedly 3200CFM each compared to the Spals rating of 1918CFM.
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They are probably measuring the cfm in some type of airflow device that is a best case scenario. I’m betting in a real world situation like you have with a huge cooling package in front of them. The other blade design has more power/torque to pull actual air better that’s my guess.

It’s one of those situations that would take Gail Banks to go down a rabbit hole to prove which one’s better in real world situation like he does with the air intakes and stuff
 
Fastereddie said:
They are probably measuring the cfm in some type of airflow device that is a best case scenario. I’m betting in a real world situation like you have with a huge cooling package in front of them. The other blade design has more power/torque to pull actual air better that’s my guess.

It’s one of those situations that would take Gail Banks to go down a rabbit hole to prove which one’s better in real world situation like he does with the air intakes and stuff
Click to expand...
Right, that's my point, it's a bullshit number. I don't care what you say, if you advertise a fan to move 3200cfm it should out perform a fan that is advertised to move 1918CFM in every situation.
 
One probably measures in a tube fit for that fan, and the other is just a meter in open air 2' in front of it or something lol.
 
Not sure which is which. But the straight blade one actually looks like it'd move more air to me.
Curve blade may be more efficient and quiet, but just doesn't seem like it'd have the azz to pull air through a radiator core
 
Fastereddie said:
They are probably measuring the cfm in some type of airflow device that is a best case scenario. I’m betting in a real world situation like you have with a huge cooling package in front of them. The other blade design has more power/torque to pull actual air better that’s my guess.

It’s one of those situations that would take Gail Banks to go down a rabbit hole to prove which one’s better in real world situation like he does with the air intakes and stuff
Click to expand...
Don't forget, I removed the rest of the cooling stack and had the two fans on full speed while it sat idling in my driveway. Even when it was only pulling through the radiator, it couldn't keep up.
 
There are a lot of good OEM options now for brushless fans, but the Spal 16" brushless fans will bolt right into my fan shroud so I'll probably go with those.
Mr. DeltaPAG stopped responding to my e-mails, looking online it seems like my experience with his customer support is on par for how he deals with the public.
 
Babaganoosh said:
I have two of these, so far I have been impressed and hope they work with the future intercooler. Engine sits at about 203 with the factory temp thermostat.

https://www.summitracing.com/parts/...2WbFcVePwSSVENp6G5MaHXRTyQiH3evXP1pjG6oUv1RGU
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Those would be an upgrade to the ones I have, but I think I'm going to just get the brushless version from Ron Davis. He quoted me a good price on them ($405 each). I'm going to pick them up next week and ship the DeltaPAGs back.
I got Mr DeltaPAG to start replying again and he's getting mad :D.
 
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