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Old 04-28-2005, 11:52 AM   #12
Scooby Specialist
Member#: 11932
Join Date: Nov 2001
Chapter/Region: Tri-State
Location: NY
1998 CW ITR
2006 NBP SI


Originally Posted by Parsons
How about my radiator?
I don't have any radiator at all, so what should I buy for the swap? the 2004 WRX radiator, an RS radiator, or some aftermarket radiator?
if they'll all work, which one requires the least amount of mods to fit?
stock RS: it will work, bu there have been peopel who have had problems with over heating at the track and stuff

Koyo GC8: i have this one, it fits into all teh stock mounts, but i had to swap the upper mounts with a 99 RS because the 98 mounts are different. the radiator fits perfectly, but the upper hose needs to be trimmed and u need low profile fans(i have flex a lite fans)

stock WRX: they will fit in the lower mounts, but the upper ones will need custom brackets made up, the subaru fans should fit fine, the upper hose should have decent clearence

Koyo GDA: this will fit, BUT there will be loads of issues, not only will teh fans be very close even with FAL fans, but the upper radiator hose could start to rub on the altinator pully.

legacy turbo into 98RS: this should be a drop in, i have yet to see it done, but after having looked at both radiators i am 75% sure that it will bolt on no problem.

when choosing the radiator you have to remember that the upper hose on teh GD cars is in the center and i have a feeling that the support on the GC bodys are closer than the GDs

Another note:
on the GC radiators they are missing one of the coolant line nipples, what i did was run teh over flow from the uppper tank directly to the over flow, the extra coolant feed i sent to the radiator and hooked up where the over flow is normally hooked up on a radiator. then i used a 93-95 Mazda RX7 radiator cap post # 16

if you go to mazda its the cap for the RX7 thats on the motor by the water pump
KF01-15-205 Cap,Radiat
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