So I need a new radiator and opted for Koyo, just curious if anyone else has had to or opted to change the radiator and if so what did you get and other than looking pretty and keeping my engine cooled more eficently, is there anyother advantage compared to OEM? I cant imagine it would effect power but is it lighter or anything? Basically Im about to spend more than $600 and am grasping for somthing to be excited about, I mean radiators just arent that exciting.......or are they?

 

They're exciting in the desert!
Actually, the Koyo is going to be heavier than stock. It's (thinner) twice as big as the stock.

 

I have the thinner Koyo and it works great, also my car runs a lot cooler then it did with the stock one.

 

u can go with out the radiator and wait for the engine to explode. that's exciting. lol j/k

i got the koyo 3 core and it costs A LOT less than 600. only gains you'll get is a cooler engine.

 

They are chargin like $650 installed, I believe labor is atleast $200 of that or more.

 

where in socal are you? i got a quote for 100 installed in san diego but i didn't trust that shop too much so i did the install with a friend who owns a shop. Concept Z Performance gave me a good deal on the radiator and my friend should be able to install at his shop for you at a decent rate.

 

Its already at the dealer being done. I checked prices on line and they beat everyone. As far as labor, I trust them and Tim Lange @ West Covina Nissan always hooks me up.

 

Now that I think of it, my Z definitely felt slower for the last month or so, do you think maybe the fact that the radiator was clogged and it was running hot was robbing me of power that will be restored via the new radiator? Also, will the 30% more cooling efficiency result in a little extra power, the same way cold morning air gives you more power than hot afternoon air? I mean I dont actually expect gains but there is an obvious difference in response on a cold morning, compared to a hot afternoon, and when you do a dyno run, they go through great lengths to get the engine as cool as possible in order to obtain the highest #s. After all you can do 3 pulls in a row and get 3 different results based on the temp of the engine. So with this in mind, is it possible to feel some miniscule difference in engine performance when going from a failing OEM radiator to a brand new Koyo that is literally 3.5 times thicker than the OEM?(OEM approx 5/8" or 15mm Koyo 2 3/16" or 54mm) Remember, I am grasping for some excitement here

 

the radiators job is not to regulate the temperature...that's the thermostat's job (opens and closes per the ecu guidelines)

the larger radiator will net you less swings in temp, from high to low, even with a stock thermostat

it also wil be more durable, as the stock one uses plastic end tanks as I recall

No, your stock radiator was not robbing you power, nor is the new one going to give you any power - it will give ou something new to polish though

 

Something to keep in mind...certain larger radiators will no longer fit if you decide to go FI in the future.

 

Thanx man.