Subject	I just put in a Koyo and have the same problem!
Posted by	Siddo (Korea) on September 10, 2002 at 6:21 PM
	This message has been viewed 188 times.
In Reply To	The car is running hotter with a new Koyo radiator! posted by PLEAZURE in CA (SD) on September 10, 2002 at 06:13 PM
Message	I also thought it would run cooler than stock, but my car is not overheating after just 45 minutes or so of driving. I was told that the Koyo was more efficient...I guess not. Siddo (Korea) 91 TT stage IV : I just got a new Koyo radiator when my radiator cracked for an unknown reason while cruising in the canyons. : I also decided to do a complete 60K service with new belts, pump, thermostat ...etc... : The shop was very good and made sure that there was no bubbles in the system, and run the car for more than an hour while adding radiator fluid with 2 bottles of redline water wetter .. till the radiator was completely full and all the air bubbles were out !! : Now the car runs hotter I can feel the heat under the car by the downpipes .. inside the car by my legs ...and in the ashtray area .. when I open the hood, I can not touch the plenum or radiator cap, because it is sooo hot !! even after 1/2 hour from starting the car when cold. In the past with the stock radiator, the car never run this hot ! and the plenum was never this hot ! Temp in San Diego never goes above 75F, I can't boost more than 9-10 psi without hearing audible detonation ! : I am thinking of replacing the Koyo, direct OEM replacement, I have now, with the high performance, all aluminum one !! : It's only $100 more ! : I really expected this one to be as good if not better than OEM ! maybe not !
Follow Ups	The car is running hotter with a new Koyo radiator! - PLEAZURE in CA (SD) 18:13:23 09/10/02 Snoguitar in 3.....2...... (n/m) - socos 18:15:34 09/10/02 lol (n/m) - Snoguitar [ABCDEFG] 18:17:59 09/10/02 Get the HOWE, $365 Shipped (n/m) - Snoguitar [ABCDEFG] 18:17:50 09/10/02 *cough*howe*cough* - HalfnHalf702[HJC] 18:21:27 09/10/02 Re: *cough*howe*cough* - Turbonium 300Zx 18:56:07 09/10/02 glad to hear it, have yet to see negative responses for them (n/m) - HalfnHalf702[HJC] 23:30:46 09/10/02 I just put in a Koyo and have the same problem! - Siddo (Korea) 18:21:57 09/10/02 vtf (n/m) - HalfnHalf702[HJC] 18:29:33 09/10/02 Ha..."maybe not"...definately not! sorry to hear. (n/m) - z rider 18:22:39 09/10/02 hmm I don't buy it that the car is running hotter - Carlos Ramirez 18:38:16 09/10/02 It's a bad thermostat...that's why (n/m) - Only1Z 18:38:45 09/10/02 So I should stop kicking mine now? Kinda scared me for a min (n/m) - NONE 18:43:29 09/10/02 want to run that truck (sled) this weekend? :-) (n/m) - Carlos Ramirez 18:45:43 09/10/02 yea thinking thats the plann. thast 10sec sled to you :P (n/m) - NONE 18:49:15 09/10/02 Sounds like he has the Koyo OE replacement, not the big one (n/m) - Snoguitar [ABCDEFG] 18:42:07 09/10/02 Yes but it should still be as good or better than OEM (n/m) - PLEAZURE in CA (SD) 01:24:14 09/11/02 All new OEM hoses, and the Koyo is not the big one It's - PLEAZURE in CA (SD) 01:35:05 09/11/02 I wouldn't blame the radiator...I'd blame the new thermostat - Only1Z 18:38:17 09/10/02 ditto (n/m) - Halo Z 18:49:36 09/10/02 maybe one of these? - Carlos Ramirez 18:57:55 09/10/02 hmmmmm tomei - Halo Z 19:03:56 09/10/02 Those Tomei cam gears are so badass... (n/m) - kZtt (zedparts.com) 19:22:56 09/10/02 hmmmmm can i get a gear or two kuah? pretty please...... (n/m) - Halo Z 19:33:34 09/10/02 Sure you can, but you need 95+ cams :) (n/m) - kZtt (zedparts.com) 19:52:30 09/10/02 WHAT? damn i guess i need to get the cam kit then. =\ (n/m) - Halo Z 20:13:45 09/10/02 JUN cam gears are more badass! - B-Ster 19:43:40 09/10/02 try uploading a smaller pic so it don't get cut off - Halo Z 19:48:55 09/10/02 Yes Sensai. (n/m) - B-Ster 19:59:55 09/10/02 B-Ster pal. they are the same thing.. All them come from - Carlos Ramirez 20:06:00 09/10/02 i.c. (n/m) - B-Ster 20:29:01 09/10/02 Carlos, I just looked them up, the design IS different. - B-Ster 21:02:47 09/10/02 whats the difference? (n/m) - Carlos Ramirez 21:54:49 09/10/02 Here: - B-Ster 07:26:51 09/11/02 wait a minute... - sbsTT(MD) 18:52:46 09/10/02 With the stock radiator I could leave my hand on the plenum - PLEAZURE in CA (SD) 01:27:16 09/11/02 either that or it wasn;t running hot enough before. - sbsTT(MD) 07:21:54 09/11/02 aux fan cutting on? you know what temp its reaching? (n/m) - 3 double-0 ZX (Va Bch) 19:00:12 09/10/02 No the aux fan does not come unless the car is really hot - PLEAZURE in CA (SD) 01:38:29 09/11/02 Radiator is just a vented tank, I take it stock gauge? - ZBlacktt 19:01:18 09/10/02 Thanks for the advice, I'll check all that! - PLEAZURE in CA (SD) 01:33:08 09/11/02 maybe they screwed something up while doing the 60k? - Seb 19:26:27 09/10/02 KaZ is having the exact same problem, hotter w/ Koyo... (n/m) - 3 double-0 ZX (Va Bch) 19:29:07 09/10/02 You need like 1/2 a bottle of WW for this, 2 is too much. (n/m) - YugoBernie (NoVA) 22:19:38 09/10/02 More hot is too subjective. IF you didn't had a gauge or - Arturo C. 08:36:15 09/11/02
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