which dewitt radiator?????
Thread Starter
Instructor
Joined: Aug 2012
Posts: 208
Likes: 0
which dewitt radiator?????
I have an 08z51 auto swapped to a 402stroker with an ecs kit. Car has been running hot ever since the install. Temps were chilling at 230 degrees which is too high for me. And then my fans stopped working for me lol. So im Looking on the dewitt site for a radiator and dual fam combo, which combo or model number should i be looking at.
Team Owner
Joined: Nov 2007
Posts: 24,035
Likes: 2,342
From: Gilbert AZ
Whatever fits your needs. If you have a car with built in tranny cooler and oil cooler, and want to keep those, order that one. If you want to remove the tranny cooler or dont have one, but want to keep oil cooler in radiator, order that one. If you want no coolers, or to swap to external coolers, order that. Basically the one that fits what you want.
Race Director
Joined: Jan 2006
Posts: 18,396
Likes: 169
MHO..... get the full size DeWitts w/o any of the additional,built in coolers. Then, get a BIG oil cooler. My EOC is 112 sq inches and mounted behind the left headlight. Any radiator with an internal EOC is a waste of money on a boosted engine.
I have three Dewitts radiators. The full size w/ EOC and the shorty w/o any cooler. Neither cooled to my satisfaction. Also use a 30% Dexcool and 70% distilled water as a coolant. Also, get the biggest fan/shroud combo you can afford.
Good luck
I have three Dewitts radiators. The full size w/ EOC and the shorty w/o any cooler. Neither cooled to my satisfaction. Also use a 30% Dexcool and 70% distilled water as a coolant. Also, get the biggest fan/shroud combo you can afford.
Good luck
Drifting
Joined: Apr 2013
Posts: 1,501
Likes: 185
From: Erie PA
I had the same temp issue after my A&A install, 220-230 degrees while cursing slow on 90 degree day and cooling fan ran constantly! I have 2006 base convertible with LS2 (non Z51). I got a deal on a cut down Dewitts with Transmission and oil cooler that came with Oil lines. Just installed it yesterday and will be confirming how it works driving. I can definitely tell a difference while just running in the garage so far. let it run for 35 minutes after up to temp and it never went over 203 degrees (coolant temp) and 170 degrees (oil temp). I think Adding the oil cooler will be a benefit. I will find out this week when I actually get to RUN it on the street. on stock radiator I would get to 220 while sitting at idle. I'm still using stock fan and shroud, but may keep my eyes out for better one later.
A friend of mine installed a COLD CASE radiator and it seems to work great for half the price.
good luck - just remember just about anything will be better than stock
A friend of mine installed a COLD CASE radiator and it seems to work great for half the price.
good luck - just remember just about anything will be better than stock
Melting Slicks
Joined: Jul 2014
Posts: 2,134
Likes: 204
MHO..... get the full size DeWitts w/o any of the additional,built in coolers. Then, get a BIG oil cooler. My EOC is 112 sq inches and mounted behind the left headlight. Any radiator with an internal EOC is a waste of money on a boosted engine.
I have three Dewitts radiators. The full size w/ EOC and the shorty w/o any cooler. Neither cooled to my satisfaction. Also use a 30% Dexcool and 70% distilled water as a coolant. Also, get the biggest fan/shroud combo you can afford.
Good luck
I have three Dewitts radiators. The full size w/ EOC and the shorty w/o any cooler. Neither cooled to my satisfaction. Also use a 30% Dexcool and 70% distilled water as a coolant. Also, get the biggest fan/shroud combo you can afford.
Good luck
Race Director
Joined: Jan 2006
Posts: 18,396
Likes: 169
A shorty DeWitts is a waste of money, I know I have an almost new one that, although a great piece, just will not cool a supercharged car with an intercooler up front. Don't have any pics. My EOC is behind my front fender inner liner, so you can't see it. I did have to sacrifice the brake cooling duct. My DeWitts shroud and 17" brushjess fan is another fine product, but I am currently looking for a much larger CFM setup.
Where I live it gets HOT. 95-100 most summer days and I can't run the AC or the coolant temps get into my uncomfortable zone 220*+.
Where I live it gets HOT. 95-100 most summer days and I can't run the AC or the coolant temps get into my uncomfortable zone 220*+.
Race Director
Joined: May 2004
Posts: 16,667
Likes: 1,209
From: Raleigh, NC
St. Jude Donor '15
Agreed. No point in using the cut down one on a SC setup. And it’s def better to separate out the oil coolers. You want all the capacity/surface area you can get for cooling coolant and nothing else
Melting Slicks
Joined: Jul 2014
Posts: 2,134
Likes: 204
Last edited by JetstreamGS; Aug 21, 2020 at 12:40 AM.
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Drifting
Joined: Apr 2013
Posts: 1,501
Likes: 185
From: Erie PA
Installed the shorty DeWitts w/ trans & oil cooler, ran out lines from block to radiator. Now it stays around 205. I'd say its definitely a huge upgrade from stock for normal driving.
Drifting
Joined: May 2006
Posts: 1,398
Likes: 220
.....be sure to check the size of the internal radiator tubes...you need at least 1 1/4 in tubes....1 1/2 tubes if possible....2 row radiator...cross flow...180 degree thermostat....high pressure radiator cap of your liking. Full shroud...puller fans....high flow water pump.
Team Owner
Joined: Nov 2007
Posts: 24,035
Likes: 2,342
From: Gilbert AZ
I had stock radiator w (auto) trans cooler on mine (no oilcooler) . After SC install, it ran too warm for my comfort level (230 ish) unless cruising highway...and fan was running constantly.
Installed the shorty DeWitts w/ trans & oil cooler, ran out lines from block to radiator. Now it stays around 205. I'd say its definitely a huge upgrade from stock for normal driving.
Installed the shorty DeWitts w/ trans & oil cooler, ran out lines from block to radiator. Now it stays around 205. I'd say its definitely a huge upgrade from stock for normal driving.
Team Owner
Joined: Nov 2007
Posts: 24,035
Likes: 2,342
From: Gilbert AZ
Yes, less load on the radiator, the better. Run just engine coolant through radiator, then ditch the other coolers and check their temps. Most people have zero issue with keeping oil/trans cool unless you are road racing or doing 20+ minute race sessions.
Drifting
Joined: Apr 2013
Posts: 1,501
Likes: 185
From: Erie PA
but way better than stock lol for the price I got it for ($450 w/ oil cooler lines includingshipping) ..money well spent and dropped my Temps 25 degrees. I may eventually upgrade fan, but it fits my needs for now. Plenty of room when installed. Although, curious How tight full size would be with my pro charger set up.