Did the V8s have the same radiators as the V6s?

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palmerwmd
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Did the V8s have the same radiators as the V6s?

Postby palmerwmd » Fri Jun 05, 2020 8:08 am

Did the V8s have the same radiators as the V6s?

And if they did,... does mean mean the V6 radiator was oversized from the factory or that the V8 radiator was undersized?


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smj999smj
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Re: Did the V8s have the same radiators as the V6s?

Postby smj999smj » Sat Jun 06, 2020 12:48 am

V6 and V8 used the same radiators.

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palmerwmd
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Re: Did the V8s have the same radiators as the V6s?

Postby palmerwmd » Sat Jun 06, 2020 1:14 am

So SMJ would you say then that our V6s have unusually good cooling capacity if the same rads are also used to support a V8?
Or would you say the V8 is a bit under supported by its size radiator?

Looking at the ad of a 2008 V8 LE 4x4, FS.
Its higher miles but looks great in the pics..

It has lift (nothing crazy) and is shod with Michelin LT rated tires.. (one size up)
That last part especially is a good sign.. people who buy Michelin tires dont scrimp on other maintenance..

I asked the dealer to send me a hi res pic of the parts number sticker...

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ShipFixer
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Re: Did the V8s have the same radiators as the V6s?

Postby ShipFixer » Sat Jun 06, 2020 12:16 pm

Somewhere I have a book from grad school on heat exchanger design... Exchanger performance depends on many, many things and there are trades. I wouldn't say the V-6 is "unusually good" as I could overwhelm it in unusual conditions, but it's also not unusually bad for the V-8 either. They're both going to disippate about the same amount of heat in most conditions as they're about the same weight and identical for drag.

I'd buy it, and if you do experience overheating, I have yet to see the CSF overwhelmed :-D

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Re: Did the V8s have the same radiators as the V6s?

Postby smj999smj » Sat Jun 06, 2020 5:50 pm

Yes, ShipFixer has mentioned the key points as it all depends on a lot of things. We don't (thankfully) have a lot of issues of overheating with this vehicles, so I think it's a moot point. The stock Nissan radiator is a 2-1/4" single-row core. When you get into the stock-replacement, aftermarket radiators, you usually find two options, the single-row as mentioned and a 2-1/8" double-row core, which is what I have in my 2006 (my 2008 has the single-row Koyorad). I don't notice any difference in performance between the two and unless one is towing heavy under some adverse conditions, i.e. steep hills, 100+ degree F. heat, etc., I would expect the stock radiator to hold-up just fine. As far as the CSF all-aluminum, I'm not sure if that is still available for purchase. Stillen and Offroad Gorilla no longer sell it because of problems with them. Griffin radiators has an all-aluminum rad for our vehicles, but it's around $680 if my memory is correct.

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Re: Did the V8s have the same radiators as the V6s?

Postby WestMIPath » Thu Aug 13, 2020 6:58 pm

I have an '08 with the V8 and have had no issues with overheating, and frequently pull up to 7000lbs. It is still prone to the SMOD, as we discovered while on a 5000 mile trip with a 3500lb camper. Limped it home, replaced the radiator, flushed the transmission 3x and haven't had any major issues with it for 20000 miles. Currently have 127,000 miles on it.


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