Forums/Z31P/z31-performance-upgrade-forums engine-mechanical-aa/bigger radiator
Imported from Z31Performance.com Forums{{#if:dannytz28| — original post by dannytz28}}{{#if:2006-05-25 06:44:10|, posted 2006-05-25 06:44:10}}{{#if:16| · 16 post{{#ifeq:16|1||s}}}}{{#if:/Z31performance_archive/forum/z31-performance-upgrade-forums/engine-mechanical-aa/167-bigger-radiator.html|
Local archive: view archived thread on dev.z31library.com}}
dannytz28: (2006-05-25 06:44:10)
I need a bigger radiator. Does any one know where can a I find a larger than stock radiator or know the dimensions to have one custom made?
Joe87T: (2006-05-25 06:59:52)
Why do you think you need a bigger radiator? :?:
G-E: (2006-05-25 07:31:43)
maybe his car grew a size over winter and it doesn't fit anymore
Jason84NA2T: (2006-05-25 15:07:09)
I would see it as being quite hard to make something fit that's any larger than a stock dual core. Maybe if you made it a little shorter and an inch or so thicker?
Here are the stock radiator specs. Compare it to other units, you may have to get one custom made; I know Afco does this for a reasonable price.
Radiator Dimensions:
Core Size: 16 1/8" x 25 3/8" x 1 1/4"
Top header: 1 1/2" x 25 5/8"
Bottom header: 1 1/2" x 25 5/8"
Inlet kneck diameter: 1 3/16"
Outlet kneck diameter: 1 3/16"
Rows: 2
Mount type: Bracket/Pin Mount
Distance between transmission oil cooler fittings: 11 3/4"
Construction: Copper/Brass
2+2turbo: (2006-05-25 15:54:32)
my rad is out of a 5-speed so it doesnt have the tranny oil cooler fittings on it , sooo it doesnt use some of the core for oil cooling , making it better by any margin???
and if you are having troubles with your car overheating then there may be sopmething wrong with the cooling system . unless you are running high rpms for long periods of time i dont see why you should have an issue.
Jason84NA2T: (2006-05-25 16:52:23)
The trans cooler is just a little dinky thing that sits in the bottom endtank of the radiator… it's more or less a tiny heat exchanger between engine coolant and trans fluid.
I've run my car at WOT with 22PSI for over 30 seconds… a new "stock replacement" turbo radiator. I never saw the temp move much more than a couple MM of the needle.
2+2turbo: (2006-05-25 17:43:20)
yeah , how much power are you making at 22psi? . your dyno runs were at 16psi right?
MikeZ: (2006-05-25 17:48:33)
I believe Mark86T on this site had an all aluminium radiator made with the stock or possibly slightly larger than stock dimensions. It installs the same as the stock unit.
Andrevas: (2006-05-25 18:02:40)
EDM turbo radiator.
Jason84NA2T: (2006-05-25 18:37:05)
Who knows… the dyno runs were with 15.8PSI. So much has changed since then. It was slipping the 6 puck at 24 PSI and 19-20 degrees on race gas, so probably somewhere around 440-460rwhp and similar torque. Considering I am running stock ignition, and stock cooling (less e-fan) I think I can say Nissan likes to over-build some of their systems from the factory. If only they had been so kind with the fuel system.
Jason84NA2T: (2006-05-25 18:38:04)
Is this any better than the USDM turbo radiator?
dannytz28: (2006-05-25 18:45:49)
the car is going to be used for road racing and it will need a bigger radiator. the car didn' grow
Andrevas: (2006-05-26 02:54:06)
[quote]Jason84NA2T wrote:
EDM turbo radiator.
Is this any better than the USDM turbo radiator?
it's supposed to be something like 10% more efficient because of high speed autobahn use
http://www.courtesyparts.com/Merchant2/ … o_radiator
Jason84NA2T: (2006-05-26 04:38:47)
only $400! :shock: I think most people would sooner go for a custom made unit that would probably outperform it…
mark86t: (2006-05-27 05:03:06)
I do indeed have a custom made radiator. About twice as thick as stock, same overall width & length. All aluminum. Crossflow. Spal fan cools it. Here in Vegas I autocross and do track days. Temp gauge never goes over 190. Normal driving it never goes above 180. Then fan kicks on & drops temp to 165. The whole set up runs about $400-$500 for radiator, Spal fan, all wiring, relay, temp switch to mount in radiator, and pipe to cross over radiator. I got mine for free (can you say FREEBIE!!) as I was the development car. Can't beat free. I can get info. on it if anyone is interested. There is a downside to using it. If you are using the Spearco I/C or run your piping under front bumper/over radiator this radiator won't work for you. I had to cut the bumper mounting bracket/hood latch half off to get the piping to run. PITA. It works though. It also made me remove my A/C so I could adjust the I/C piping. No need for A/C on the track, right?
dannytz28: (2006-05-27 05:46:55)
if you could give the dimension on the radiator i would appreciate it. so i can have mine made to the same spec.