C5 Overheat Problems???
Thread Starter
Le Mans Master
Joined: Aug 2001
Posts: 6,071
Likes: 296
From: Savannah GA
Cruise-In IV Veteran
C5 Overheat Problems???
Coming back from the Nopi event in Atlanta the last weekend made me wonder if my car has overheat problems. The reason I have not noticed is b/c I have not sat in stop n go traffic for an hour or longer.
Outside temp was about 80 degrees. Sitting in traffic after about 20 or 30 minutes I noticed my temp was around 230 degrees. When I could get up to 30+ mph the temp would go down to about 210 or less. Is this normal? My car is stock minus exhaust and filter.
It seems like more of a fan problem than a lower degree thermostat b/c once I was moving my temp went down.
Any help???
Outside temp was about 80 degrees. Sitting in traffic after about 20 or 30 minutes I noticed my temp was around 230 degrees. When I could get up to 30+ mph the temp would go down to about 210 or less. Is this normal? My car is stock minus exhaust and filter.
It seems like more of a fan problem than a lower degree thermostat b/c once I was moving my temp went down.
Any help???
Melting Slicks
Joined: Mar 2001
Posts: 2,117
Likes: 1
From: El Paso TX
Re: C5 Overheat Problems??? (vetterdstr)
I significantly lowered my temps. by going with a tstat/fan control combo from Nate at Xtreme. The fan kicks on at 172. My coolant temps rarely go over 185 in normal driving and in stop and go/hard driving usually no more than 199. Hope this helps. :yesnod:
Team Owner
Joined: Mar 2001
Posts: 21,325
Likes: 3,841
From: small town in S.E Pa. PA
St. Jude Donor '03-'04
Re: C5 Overheat Problems??? (C5-VERT)
If you notice the red line on the temp is above 230 F . if your stuck in traffic bumper to bumper.. there is very little cooling from your air intake, which is about 6 in off the ground... even with 80 temps.. the road surface gets up to 120 F.. I lazer tested road temps at 95 F... black top can get to 160 degrees.. cement surface 140 F. There is very little cooling from temps like this.. a fan controller will help.. a lower thermostat will help but it will not help by itself..
Instructor
Joined: Jul 2001
Posts: 231
Likes: 0
Re: C5 Overheat Problems??? (C5-VERT)
You might want to check to see if you have some trash that has blown up in between the shroud and the radiator. When I changed to a ram air setup, I had to change the shroud. I found a bunch of trash at the top of the radiator. Enough for a bird to have a nest.
Pro
Joined: Oct 2000
Posts: 714
Likes: 0
From: Hollywood Park
Re: C5 Overheat Problems??? (sandbagger)
If your in traffic ...turn on your A/C and it will kick the fans on and keep your Coolant Temps. around 210..... I see temps of 172 on the freeway and 180 in traffic with my mods...
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Thread Starter
Le Mans Master
Joined: Aug 2001
Posts: 6,071
Likes: 296
From: Savannah GA
Cruise-In IV Veteran
Re: C5 Overheat Problems??? (CLAYSREDVERT)
Thanks guys, I did notice with the AC on the temp would drop. But it's kind of an oxymoron with the top down and AC on...
Oh well, I guess it didn't hurt to think I was overheating. Alteast that kept me from the temptation of racing all of those rice-burners on the way home from the NOPI event. ;)
[Modified by C5-VERT, 12:43 AM 9/24/2001]
Oh well, I guess it didn't hurt to think I was overheating. Alteast that kept me from the temptation of racing all of those rice-burners on the way home from the NOPI event. ;)
[Modified by C5-VERT, 12:43 AM 9/24/2001]
Team Owner
Joined: May 2001
Posts: 36,836
Likes: 244
From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
Re: C5 Overheat Problems??? (C5-VERT)
Ditto what Viprklr said. The unit does a good job of keeping temps lower. One drawback that I see though is that it increases the duty cycle of the fans and therefore will probably shorten their lifespan somewhat. Also, I haven't had this mod installed over the winter months yet. I'll be keeping a close eye on this. Don't want too much of a good thing! 
Pro
Joined: Feb 2001
Posts: 685
Likes: 0
From: Somewhere in the Mid West
Re: C5 Overheat Problems??? (C5-VERT)
Hey C5-Vert,
Did you see my vette at the show? I had the Pewter hardtop with the BPP hood and nitrous setup.... I didn't see yours unless you didn't enter... What did you think of the show? :chevy :seeya
Did you see my vette at the show? I had the Pewter hardtop with the BPP hood and nitrous setup.... I didn't see yours unless you didn't enter... What did you think of the show? :chevy :seeya
Thread Starter
Le Mans Master
Joined: Aug 2001
Posts: 6,071
Likes: 296
From: Savannah GA
Cruise-In IV Veteran
Re: C5 Overheat Problems??? (hrdtopv8)
Sure did! I think you may have walked off when I saw it. I was with my friends 300zx TT, which was right across from you. Definately liked your setup!
Actually I parked outside. I didn't even think about entering my car in there until it was too late. I honestly thought it was more of a foreign car event. Go figure...
Actually I parked outside. I didn't even think about entering my car in there until it was too late. I honestly thought it was more of a foreign car event. Go figure...
