What is the stock size of a vtec radiator? - Honda Prelude Forum

blacklude4k · 08-22-2005, 12:19 PM

How big should the radiator in a 4th gen vtec be?

Sonik_Fury · 08-22-2005, 02:54 PM

Are you asking for exact dimensions or just a general idea. Here is a pic of my engine bay and you can almost make out the whole radiator??

blacklude4k · 08-22-2005, 08:31 PM

im not real sure mine just looks real thin and i have been having over heating problems and i have pretty much narrowed it down to the radiator. So if anyone can give me anyway o tell if my radiator is to small or any info would help

Sonik_Fury · 08-23-2005, 04:11 AM

It's only like 1"-1.5" thick. So you've already checked or replaced the cap, thermostat, fan, and flushed the system. If you definitely need a new radiator it's only like $130-$140 shipped.

blacklude4k · 08-23-2005, 10:57 AM

Ya ive done all that so it leads me to believe its the radiator. I could have a bad radiator and the exterior still look fine correct?

Sonik_Fury · 08-23-2005, 04:06 PM

Yeah you can have small corrosion blockages that greatly reduce the flow and effectiveness of the radiator.

TruNinja619 · 08-26-2005, 09:33 AM

VTEC radiator seems like the same size as the Si....

j_t_heilbrun · 08-26-2005, 10:27 AM

they are really close in size, the vtec radiator is slightly smaller but it is a dual core instead of a single core

blacklude4k · 08-26-2005, 12:48 PM

how can i tell the difference?

j_t_heilbrun · 08-26-2005, 01:11 PM

If you have an Si the fans won't bolt on to the vtec radiator and vice versa. Also the vtec radiator is thicker.

blacklude4k · 08-26-2005, 01:13 PM

i mean the radiator is already in the car and it was a swap so im not sure if the current radiator is a vtec or not so what can i look for to tell if it is dual core?

TruNinja619 · 08-26-2005, 01:27 PM

Quote:

Originally Posted by j_t_heilbrun

If you have an Si the fans won't bolt on to the vtec radiator and vice versa. Also the vtec radiator is thicker.

but its okay to use a VTEC radiator (w/ the VTEC fans) on a H23A1 motor?

I was curious of this b/c Im thinking of getting a Koyo radiator....

j_t_heilbrun · 08-26-2005, 01:30 PM

si = core is 5/8" thick

vtec = core is 1-1/4" thick

j_t_heilbrun · 08-26-2005, 01:31 PM

Quote:

Originally Posted by TruNinja619

but its okay to use a VTEC radiator (w/ the VTEC fans) on a H23A1 motor?

I was curious of this b/c Im thinking of getting a Koyo radiator....

I don't see any reason it wouldn't work. I'm running modified Si fans on a vtec radiator. with no problems.

TruNinja619 · 08-26-2005, 01:33 PM

Quote:

Originally Posted by j_t_heilbrun

I don't see any reason it wouldn't work. I'm running modified Si fans on a vtec radiator. with no problems.

yea.. I thought so too...

thanks..

blacklude4k · 08-26-2005, 01:40 PM

So it looks like i have a si radiator with a h22a engine, so i guess this is what is causing my overheating problems? Ive already checked all the other normal things that cause you to over heat.

blacklude4k · 08-27-2005, 01:25 PM

Well im getting the radiator replaced today. I know that i am running an si radiator at the moment and i have replaced or fixed every other problem or possiblility so im hoping this will fix my overheating once and for all. I will keep yall posted.

blacklude4k · 08-30-2005, 05:25 PM

Replaced the radiator and it hasnt over heated since, i think the dual core is really doing its job where the single core couldnt

TruNinja619 · 08-31-2005, 02:31 AM

Quote:

Originally Posted by blacklude4k

Replaced the radiator and it hasnt over heated since, i think the dual core is really doing its job where the single core couldnt

thats good to hear..

I think I'll buy a VTEC radiator as well...