[DeTomaso] fluidyne radiator question

Ken Green kenn_green at yahoo.com
Sat Jun 16 01:41:47 EDT 2012


Usually, you use a Pulse Width Modulation (PWM) power supply for a DC motor.  I guess you could use a stepper motor to adjust a potentiometer (a pot), but that would be like using a club to dice onions.
 
Ken

From: Will Kooiman <will.kooiman at gmail.com>
To: Justin Greisberg <justingreisberg at hotmail.com> 
Cc: detomaso at realbig.com 
Sent: Friday, June 15, 2012 5:01 PM
Subject: Re: [DeTomaso] fluidyne radiator question

I haven't started my car with it yet, but I have Jon Haas's fan controller.  It has a stepper motor to control fan speeds.  I hope I'm saying that right.  I'm not an EE.

At any rate, it pulses to both fans to run them as fast as necessary to keep the temps down.  Pretty cool.

Like I said, I haven't tried it yet, so I don't know how well it work.  If it is like the rest of his stuff, it works perfectly.

On Jun 15, 2012, at 6:01 AM, Justin Greisberg wrote:

> 
> I am pretty sure I got the sensors based on the info on sean korb's site, as references in Will's message.
> 
> I may have gotten my radiator from absolute radiator - it was closer to $500 and that was a few years ago.  But it came just fine.
> 
> 
>> Subject: Re: [DeTomaso] fluidyne radiator question
>> From: chance.dorsey at yahoo.com
>> Date: Thu, 14 Jun 2012 23:44:05 -0500
>> To: justingreisberg at hotmail.com
>> 
>> Hey Justin,
>> 
>> Thanks for posting this. I would love to see the pictures you have. Also, do you happen to have the part numbers for the sensors that you used? Any other info you have would be awesome.
>> 
>> Thanks, Chance
>> 
>> On Jun 14, 2012, at 6:14 PM, Justin Greisberg <justingreisberg at hotmail.com> wrote:
>> 
>>> 
>>> I got my fluidyne radiator from a cheap online source - saved a ton of moneyI searched the internet and found a racing supply shop that carried right angle rubber hoses that made the turns for me, so no special metal fittings needed. I searched the internet and found a pantera guy who told the story of some chrysler/jeep sensors that will fit in the radiator holes. They were cheap at auto parts store, but they never seem to get hot enough to turn on the fan. I ended up putting a temp sender in the upper thermostat metal pipe hole that then activates my fans when that temp reaches 190. I got a couple of electric fans, i think from Spal or something, not too fancy, straight blades, and I took some strips of aluminum and made thin long brackets that have right angle bends and mount the fans to rivets I put in the top and bottom of the radiator - the top and bottom are just metal plates. just be sure not to drill into the cooling tubes below the plates
 (easy to be careful here). I use no other shroud and my car never overheats. Although I did lots of my own designing for the pantera, not all of my ideas worked out (see my fuel injection frustrations last year). But this was not too expensive and looks great!!! way cheaper than $1000 for whole setup pre made, and I did it myself! justin
>>> i can forward pics to anyone interested. 
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