Electric fan recommendations - Foxbody with modmotor

[1BAD92LX]

Decided to go with a Contour fan (with Bosch motor) and an 80 amp relay. All installed and running great. Operating both fans together via the Ron Francis controller

Seeing significant improvement in operating temperatures since completing the install, but have only had moderate driving. Will be interested to see how the next track day goes with it

So your track temps were ok? Mine were not, looking into new rad fan set up

[Gabe]

Hey Brad,
good to meet you yesterday.

My answer is not quite so simple

I am using electric gauges in the car, I have had some concern that the water temp gauge/ sending unit is not reading accurately once the car starts getting pushed (ie track days) as the temperature has been increasing dramatically (90-100 degrees C on the street, (110 - 120 C) on the track, sometimes only after 2 laps. Oil temperature on the street is 75-80C, 85-90 track. To validate the theory, I installed a mechanical gauge and attached the capillary tube to the outside of the crossover tube that the sending unit is located on.
Obviously there will be some losses in thermal conductivity of the metal tube, so I took measurements during regular street use to get a baseline for how much lower the mechanical gauge was reading, was around 8-10 degrees. when on the track, it was reading lower by 20 degrees. this leads me to believe the electric gauge is not reading properly. I also confirmed via a infrared thermal gun on the crossover tube.

So, long story short, yes I believe my track temps were excellent yesterday

[RedSN]

So your track temps were ok? Mine were not, looking into new rad fan set up

Same here.

My temps stay at 190. The second I run at higher RPMs the temp jumps to 200-210. Yesterday my temps were climbing past 215 and kissing 220. My setup includes a new water pump, new Northern rad, and Mocal oil cooler.

[1BAD92LX]

New water pump, new 3 row fluidyne rad and mishimoto oil cooler here. temps were approaching 230 when driving it hard.
Temp read from autometer mechanical gauge

[1BAD92LX]

Currently have a flexalite black magic fan. Says it’s good for 3300 cfm.
Maybe the 10 year old electric motor is worn out?
Contour fans do 3500 cfm.
https://lmr.com/item/SVE-8607K/musta...sion-kit-79-93
Pricey kit but pretty complete

[ZR]

You'll find many of the less powerful fans see the ratings based on zero restriction meaning being held up in the air with no rad to pull through. Typically, if it draws big amps it moves big air.

[1BAD92LX]

Off their website shows my fan draws constant 18 amps

[ZR]

Compared to a Taurus or similar, moves very little air.

[Zippy]

I linked this post to Gabe, but I'll share to everyone. Someone off FB shared this info
Not really sure what the 'mods' were but looks pretty good on there.

"2020 Dodge Challenger 18” 3100+ CFM fan fit perfect on my Ron Davis and the factory overflow fits great with a few mods. These are only 3.5” thick, 25 amps and best of all $58 on Rock Auto"

115968988_1239312233080635_763161885615694120_n.jpg

115896366_1239312256413966_7194947181518558752_n.jpg

109907066_1239312286413963_8970873049043798297_n.jpg

[USAWIT2]

I linked this post to Gabe, but I'll share to everyone. Someone off FB shared this info
Not really sure what the 'mods' were but looks pretty good on there.

"2020 Dodge Challenger 18” 3100+ CFM fan fit perfect on my Ron Davis and the factory overflow fits great with a few mods. These are only 3.5” thick, 25 amps and best of all $58 on Rock Auto"

115968988_1239312233080635_763161885615694120_n.jpg

115896366_1239312256413966_7194947181518558752_n.jpg

109907066_1239312286413963_8970873049043798297_n.jpg

Looks a lot like the Mark Viii fan, looks like a cheap replacement if mine take a crap