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{{ForumImport
|op_user=dannytz28
|op_date=2006-05-25 06:44:10
|post_count=16
|archive_url=/Z31performance_archive/forum/z31-performance-upgrade-forums/engine-mechanical-aa/167-bigger-radiator.html
}}

'''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?

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'''Joe87T:''' (2006-05-25 06:59:52)

Why do you think you need a bigger radiator? :?:

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'''G-E:''' (2006-05-25 07:31:43)

maybe his car grew a size over winter and it doesn't fit anymore

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'''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

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'''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.

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'''Jason84NA2T:''' (2006-05-25 16:52:23)

{{Quote|user=|}}

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.

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'''2+2turbo:''' (2006-05-25 17:43:20)

yeah , how much power are you making at 22psi? . your dyno runs were at 16psi right?

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'''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.

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'''Andrevas:''' (2006-05-25 18:02:40)

EDM turbo radiator.

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'''Jason84NA2T:''' (2006-05-25 18:37:05)

{{Quote|user=|}}

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.

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'''Jason84NA2T:''' (2006-05-25 18:38:04)

{{Quote|user=|}}

Is this any better than the USDM turbo radiator?

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'''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

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'''Andrevas:''' (2006-05-26 02:54:06)

[quote]'''Jason84NA2T wrote:'''

{{Quote|user=Andrevas|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/merchant.mvc?Screen=PROD&Product_Code=21450-07P02&Category_Code=z31_nismo_radiator http://www.courtesyparts.com/Merchant2/ … o_radiator]

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'''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…

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'''mark86t:''' (2006-05-27 05:03:06)

{{Quote|user=|}}

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?

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'''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.

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