Should be easy to find any 4400 cars running his stuff. Might harder to see if just fans or complete systems.
CK5
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There is no way one of his fans would hold up to a 4400 car. The first big hit and that flimsy support would flex and destroy either the blade or the radiator.
Our tentant is building a 4400 car atm. Nect time I see him I'll ask his opinion about deltapag
I didn't read the complete email exchange, but he obviously didn't care or believe you that this was a new problem, as in after the fan swap, with his statement of "obviously you have been having issues for a long time".
He needs to figure out his problems or get out of business, IMO.
Thanks for letting us know where to avoid, if we are ever looking into different electric fans.
He needs to figure out his problems or get out of business, IMO.
Thanks for letting us know where to avoid, if we are ever looking into different electric fans.
Wow. How did I get 15 pages behind?
The fan emails would be frustrating. I would have had to type a reply to him, then sit on it a day to cool off. Edit and send it.
We did testing with hand held wind speed meters. It was crazy with how different the same CFM rated fans were. There was a 70% variance from the best to last. None were what was rated. Some did better if we held the meter to the side at a 45* angle to the fan. That showed they were spinning air, not moving it. Holding the meter in front of the fan was about 50% drop in air flow on average. All mounted to the same shroud, 1" from the radiator core.
The fan emails would be frustrating. I would have had to type a reply to him, then sit on it a day to cool off. Edit and send it.
We did testing with hand held wind speed meters. It was crazy with how different the same CFM rated fans were. There was a 70% variance from the best to last. None were what was rated. Some did better if we held the meter to the side at a 45* angle to the fan. That showed they were spinning air, not moving it. Holding the meter in front of the fan was about 50% drop in air flow on average. All mounted to the same shroud, 1" from the radiator core.
I'm going to be the contrarian here, just to add a different perspective. I'm trying to be as charitable as possible to his position (Even if I disagree).
First, I don't think either of you were being assholes in the email, although 25% restocking fee seems a bit high. He did seem willing to help troubleshoot the problem with you, at least initially, but I think basically his position came down to "I can't guarantee it will work with anything other than MY complete setup", so suggested going that route.
Your position is, that's stupid, why would I spend the money, when what I have works. Obviously this is a perfectly reasonable position to have.
There is no bridging that gap, so returning the fans is the only option, and other than the restocking fee, he's willing to do that.
What it comes down to imo is you want him to admit that CFM ratings are BS and he's just not going to do that.
As @ktmoutfront pointed out, NO fan matched the rating. It's all voodoo, which sucks, but isn't surprising. Unfortunately, that leaves all of us out here with trial and error.
First, I don't think either of you were being assholes in the email, although 25% restocking fee seems a bit high. He did seem willing to help troubleshoot the problem with you, at least initially, but I think basically his position came down to "I can't guarantee it will work with anything other than MY complete setup", so suggested going that route.
Your position is, that's stupid, why would I spend the money, when what I have works. Obviously this is a perfectly reasonable position to have.
There is no bridging that gap, so returning the fans is the only option, and other than the restocking fee, he's willing to do that.
What it comes down to imo is you want him to admit that CFM ratings are BS and he's just not going to do that.
As @ktmoutfront pointed out, NO fan matched the rating. It's all voodoo, which sucks, but isn't surprising. Unfortunately, that leaves all of us out here with trial and error.
I went with the Camaro PWM fan. I figured if it kept this same or better engine cool in the confined space of a camaro, it should be good in ReTonkulous. The crazy thing is, engine temp goes from 208* to 221* in an 1/8 mile. Back to 208 before the time slip booth.
