WUSSUP Everyone, i have a question regarding which radiator to go for? My 93 FD3S leaked coolant yesterday and the dealer told me i need a new radiator and new water pump> if anyone has any suggestion https://www.nopistons.com/forums/pub...#>/biggrin.png THANKS....

I plan on getting a Fluidyne myself. But they're mostly the same.. You could try a KOYO rad. or the SRMotorsports' competetion rad.

I've got the Fluidyne and I'm real happy with it.

Get the one on E-Bay for $299....same thing with out the name. I have

checked them all in person....NO DIFFERENCE!!

Get a fluidyne Ive heard good things about them,and ask the people that have them what they think of them.

I've got the Koyo Radiator...cheapest aluminum one they had...and thick as ****. You'll probably have some fittiment problems with it, but nothing out of the ordinary.

i was going to go with the fluidyne due to i believe it is an american product (supporting our economy) but the fluidyne has a 30mm core, where-as the koyo has a 50mm core. both are huge but i feel now the koyo is better...

Go with a Koyo radiator for the simple fact that Fluidyne is super great but its more based for trace comditions... where KOYO IS STREET RACE DESIGN AND YOU SAVE YOURSELF ABOUT 100 DOLLARS. second you want to be the man when it comes to water pump get the Meziere electronic h2o pump with adaptor block from summit racing more horse power and the price is $250 for street app. and $265 for race app. plus adaptor block is $90 bucks but man it looks sweet!!!!

www.summitsportcompact.com

I like koyo better because its thicker and becuase it looks better IMO.

koyo

Will the Koyo fit fine in the stock V-mount position with my GReddy 3-row stock mount intercooler?

There maybe some fitment issues like most Koyos, but it should clear fine. Koyos are nice for the price, but I wish they were not so thick, thats what is nice about the PWR, Mazda Comp, and Fluidyne.



I am actually working on a triple pass radiator for myself, mainly for the the sole reason of running a FMIC. Alot of Japanese tuners use triplae pass radiators w/fmics with no over heating issues.

http://www.radiatorworld.com



CSF Aluminum (As large as a Koyo) for $279 shipped.

Just bought the "competition" radiator from SRmotorsports. Both it, and their "ultimate" radiator have a larger core than both the Koyo and the Fluidyne. Bigger is always better when it comes to radiators.

Bigger is not always better when it comes to radiators.



You need a good balance of internal and external flow. There are many characteristics that effect each core, whether it be the overall thickness, number of tubes, number of passes, fin count and fin design. The most versitale radiator would be a single row core in the 1.250-1.50" range. This is a vast improvemnet over the OE core size, yet you still achieve adaquate airflow through the core to cool the water/coolant. A larger core is best if being used for racing purpose where the radiator is seeing clean air from the noise, due to the added thickness and the slowing of the ambient air thru the core.



You really cannot compare one radiator to another, mainly because thickness, number of tubes, fin count and fin design are different for all, even within the same manufacturer. Each radiator is designed for a different application, and each setup may require a different radiator to be most effiecient.

Its an FD, bigger is better.