6G Celicas Forums

im gonna be tackling this mod in the weekend......got the radiator & the tranny cooler...any things i should be looking out for?.....i know i need new hoses n clamps, ive ordered a thermostat too. any other parts u guys/girls recommend? which hose on the transmission is the return line & pressure?

ps - did koyo changed their logo? mines look different, but teh part #s teh same...heres where i bought it from:

http://cgi.ebay.com/ebaymotors/ws/eBayISAP...em=300139759836

in the ebay link thats teh new version logo, and teh one on mines is totally different...it says: KOYORAD "boxes"









This post has been edited by DeW_H0e_GT: Sep 9, 2007 - 11:23 PM

ive just confirmed that logo on my radiator is the newest 2007 logo chnage...*whew*

any1 kno the siz eof the auto transmission hose diameter?...3/8"???

looking forwards to seeing this mod, looking to do similar.

What are the 2 threaded holes on the bottom right? Are they linked to the rest of the cooler or are they a separate cooling area. (Check the manual for that one) They could be used for the trans cooler.


The Trans cooler hoses I think are 1/2 ID but I am not sure. You will need to check what they are once you take them off your car or check with toyota.

Now, I am guessing your trans cooler is threaded input output. You will need to get 2 90* brass fittings from home depot/lowes, or you can use Earls fittings. Brass will be cheaper by a long shot.

2 of these but 90* or 45* bends



then you will slip the hydraulic hose over the nipple side and clamp it down. Make sure you take the trans cooler with you so you have the proper threads matched up. Dont forget to use Teflon tape on them as well.

This post has been edited by Harold_Fastwaker: Aug 30, 2007 - 11:34 PM

thanks for the info, ill tackle it tomorrow...

the 2 bottom holes you're talking about is:

1. A threaded hole for a sensor (not sure what but ill find out tomorrow.....)
2. outlet for the radiator hose

What is the main benefit to upgrading to a Koyo radiator?

theres been many mixed sayin when it coems to this mod, but personally after installin this i felt quiicker throttle response, and about 30% cooling capability.....

BEFORE:



AFTER:




i jus did a little how-to but i accidently closed the browser... ill make anotehr one tomorrow when i wake up.....

is your temp gauge actually lower at operating temperature? cause mine wasn't. I didn't feel anything different with mine

whats that white cover thing called?

Nice menthols! lol
looks good. How much did this cost you?

yea mine did....


a radiator cooling plate or as the jdm folks call it air diversion plate

well, u kno..gotta have the menthols in between breaks.....i should quit tho

all the parts came up to :
koyo radiator $335
transmission cooler $70
fittings n teflon tape $11
radiator hoses n clamps $24
2 gallon of coolant $18
tranny fluid $5 (i didnt change out the auto tranny fluid which i think i should)
thermostat $7
stant radiator cap $8
3/8" transmission hoses $4

u do the math....

This post has been edited by DeW_H0e_GT: Sep 4, 2007 - 6:16 PM

Thanks man. Looks great tho.

Total = $482

i noticed there is another radiator for the ac. Has anybody changed this?

u must mean the ac condenser...i dont have a clue how to install one...maybe check out the chiltons manual...

you forgot to add pack of smokes to your list and wheres the how to?

this may be a stupid question but i havent looked yet....to replace the radiator in a 94 gt m/t does it drop down or pull up and out?

you have to pull up and out because of the way the mounts are on the bottom.

Looks good bro. Where did you end up mounting the trans cooler at?