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Old 08-11-2012, 09:19 AM   #1
JDMFLCL
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Location: Super Eurobeat Vol 193..Denver
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Looka Bomba! 99 JDM GM8

Default Which GMS radiator works?

1999 2.5rs with EJ20G (1995)

Do i get the one without the rad. cap or the one with? I'm currently running a stock RS radiator with the jdm coolant tank

Thanks for your time.
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Old 08-11-2012, 11:08 PM   #2
JDMFLCL
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Default

bump.
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Old 08-12-2012, 11:37 AM   #3
JDMFLCL
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I guess more specifically - Can I run the 93-98 GMS radiator as opposed to the GMS swap radiator? I really want to retain factory fans.
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Old 08-12-2012, 11:50 AM   #4
beaviscih
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Default

I looked at these but went with the stock dimension Koyo. While I liked the potential cooling benefits of the GMS it wouldn't clear my GT Spec Header (passenger side). If you are using an aftermarket header, you may want to double check fitment.

Specific to your question, I believe either would work (with or without a filler neck). Personally I like the filler neck even though you have to cut the radiator cap; makes burping the system easier. As for the stoker Koyo I never had a cooling issue while living in Texas.
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Old 08-12-2012, 11:58 AM   #5
JDMFLCL
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Default

I do have Gruppe-S headers. I once test fitted an Ebay radiator (which i presume is almost identical in size) and the radiator had no issues clearing the headers.

I presume the 93-98 GC8 radiator isn't quite as thick as the swap one? Not being able to use the stock fans (granted I'd be willing to shave the shrouds) is a deal breaker for me.
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Old 08-12-2012, 03:28 PM   #6
sti_95imp
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Just use your stock radiator. I have a '95 L model with a EJ20G and used my stock radiator for 2 years. The only reason I changed it was because it cracked. And my car was used for racing almost exclusively.

Stock radiators work just fine. Don't let anyone tell you different.
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Old 08-12-2012, 10:22 PM   #7
JDMFLCL
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For track days?
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Old 08-14-2012, 01:53 PM   #8
Bookem74
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Quote:
Originally Posted by JDMFLCL View Post
Not being able to use the stock fans is a deal breaker for me.
Is there a particular reason for needing the stock fans? Is it price of slim fans?
I have two good 10" spal I'd sell fairly cheap, I probably have ends I could wire in and be plug and play for you.
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Old 08-14-2012, 08:46 PM   #9
sti_95imp
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Quote:
Originally Posted by JDMFLCL View Post
For track days?

Almost exclusively rallycross. High revs, low speed, and high ambient temps. Never had an overheating issue. Even the day it cracked, it didn't get hot. I would stay stock until you see a need for upgrade.
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Old 08-15-2012, 02:01 AM   #10
i_c_the_light
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Quote:
Originally Posted by sti_95imp

Almost exclusively rallycross. High revs, low speed, and high ambient temps. Never had an overheating issue. Even the day it cracked, it didn't get hot. I would stay stock until you see a need for upgrade.
Do run the thermostat?
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