Location: lincoln ca
Posts: 248
My VIN: nov 81 6900-
finished this project.. I jumped otterstat and did decibel test before and after. they are not any quieter. just higher pitch. both registered 75 dec.
the best part about them is they have no where near the draw of the old ones... when they kicked in on first warm up you would not know it other than the fan noise. They don't drag down everything else inside the car like the old ones did.. If that makes sense..
Location: Renton, WA
Posts: 142
My VIN: 10332
Club(s): (PNDC)
Looks nice. Toby's fans? I did those this year. night and day difference
Posts: 608
Less power - less cooling.
Location: lincoln ca
Posts: 248
My VIN: nov 81 6900-
Originally Posted by Elvis
Ive now driven the car a few times and when they kick on they dont seem as loud as the old ones. I think the engine noise drowns out the higher pitch they have. idk. Checking decibel level without engine running was not a good test. when they kicked on the first drive in traffic i barely noticed. They actually cool the car quicker so they dont stay on near as long. Overall I think a good upgrade.
Location: Renton, WA
Posts: 142
My VIN: 10332
Club(s): (PNDC)
um - wrong.
Location: Leonardtown, MD
Posts: 9,117
My VIN: 03572
You can get fans that draw 30 amps each. But what you want is enough cooling to keep you from overheating. There were a few in the EU that were using fans drawing less then 3 amps each and they were happy.
Posts: 608
and I heard from a guy kicking out that low power joke and replaced it with similar to original with 2 speeds.
BTW - he is a customer from you.
With 3A (~40W) fans you won't be able to cool the engine in summer traffic.
but hey - what do I know about fans
Location: Renton, WA
Posts: 142
My VIN: 10332
Club(s): (PNDC)
Well. I'm running Toby's fans and they cool my delorean sitting in summer traffic.
But what do I know about my own experience?
Posts: 608
My offer ist still open - to have the fans with radiators professionally measured in our test system in the company.
Location: Leonardtown, MD
Posts: 9,117
My VIN: 03572
I agree the more power the motor draws will equal more air flow. My work with the stock wiring makes me believe 25 amps for total fan power is the limit. Now if you change to two fan relays (no fan fail) you can increase that current a little but then the separate fan wiring and connectors limit is about 15 amps each. I've seen some stock fans draw around 15 amps each.
The stock relay pins will get hot above 25 amps. I've seen some of those relays rated at 60 amps (no way unless they mean a few seconds at the current).
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Dave M vin 03572