Tom Dewitts Dual Spals really suck.....
Thread Starter
Team Owner
Joined: Jul 1999
Posts: 65,492
Likes: 230
From: Orange Park Florida
Tom Dewitts Dual Spals really suck.....
and I mean HARD!!!!
run this car in hell up to 150f road temps, and still cool this 350.....
course they do sound sorta cool, full power and all, whine like a banshee....maybe confusing to another motorist/kid/hotrodder/etc....
run this car in hell up to 150f road temps, and still cool this 350.....
course they do sound sorta cool, full power and all, whine like a banshee....maybe confusing to another motorist/kid/hotrodder/etc....
Melting Slicks
Joined: Nov 2001
Posts: 2,668
Likes: 43
From: Eastern US XX
Best fans I have ever installed.
Now, if they could only build a reasonable controller with a decent warranty.... I was an early adopter of theirs and am now faced with having to remove and replace it at my expense....
Thread Starter
Team Owner
Joined: Jul 1999
Posts: 65,492
Likes: 230
From: Orange Park Florida
Thread Starter
Team Owner
Joined: Jul 1999
Posts: 65,492
Likes: 230
From: Orange Park Florida
two ways to cool, smaller stockish radiator, and a weaker/stockish fan, OR a much larger rad and MORE AIR.....
since I do not have a super large/turbo/charged engine, it only makes an optimistic 375 hp or so from 355 cubes....I suspect the cheep rad with Tom's fans is quite enough....
I like the sound though....it's a neat setup....all around...
I am using the ON/OFF relay controlled by computer a la stockish though...nice heavy wires feeding the supplied connections...there is a fuse link in the harness, so to controll the surges....
come much hotter weather in summer IE +30f off today at 70f...I can still see it much better cooling....the air coming off the rad is cool as a moose, vs with stockish fan from '87 vette in originalish shroud was hotter then hell....that right there tells me something...just a hand feely touchy type thing, but it's not rocket science either...
even the 17SI alternator seems happy enough....lights on, congested traffic and all, course it's not hot enuff to get an accurate opinion yet, but the on time to off time curve is much greatly in favor of the dual Spal setup....by a fair margin....
the rad is a '89? firebird T/A meant to cool a 350 chebby and the core is similar size, so I figgered it would cool my vette just fine....
but am finding it WAS marginal to the Florida requirements....ie 200f off the pavement in summer....defined at 7 months of the year.....
Burning Brakes
Joined: Jun 2004
Posts: 936
Likes: 0
From: Tulsa OK
My controller went out after only a couple of weeks. But Tom replaced it no problem.
If it goes out again, I'll just replace it with a second relay and be done with it.
