DRM C500/RSR

I almost crazy to trying to find the cure for my overheating trouble.

The thing is the I have all the best of the best cooling system in my DRM stroker engine (DRM big radiator, oil cooler, 160 stat, fans).

When I recently got the car the temp was running fine. In 105 day, the car with traffic and A/C on, the temp just go up to 200.

Now I'm confronting trouble that in the same condition, the coolant temp is up to like 220 and still going up until I turn of the A/C or go high speed to refresh the radiator...

I flushed the radiator with AC Delco flusher 2 times. I don't know if the AC Delco flusher is good or not but I did it.
The second time (last time) I flushed the car, I filled with 3 bottle of Red Line water wetter and a quater of Prestone coolant and 2 gallons of normal water.
I thought that my overheating problem with finish at this time, but still continue after I drove the car 30 minutes ago in a traffic and low speed area with A/C on...

What opinion, advice or recomendation you can give me?

My mistake when I get the car from DRM, I filled the radiator with a normal water without any coolant and I run with just water for around a year with the engine without any overheating problem until 3 months ago...
I think that I have a corrosion problem in the radiator and need to fix that problem....

I change the stat already and check the fan and everything seems ok.

Any input for help would be fine...

Thanks!!

<small>[ December 09, 2002, 10:50 PM: Message edited by: DRM C500/RSR ]</small>

DRM C500/RSR

The car is a 2000 C5 with a 415 cid DRM stroker engine!!

DONAIMIAN

iTrader: (18)

what kind of water did you run in your radiator <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />

DRM C500/RSR

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by stang killer:
<strong>what kind of water did you run in your radiator <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Normal water, not destilled water!!

Does it makes a difference?

haole_boySS

iTrader: (1)

It would be my guess that you have corroded the radiator. Distilled water is ok for short periods of time and also in a place where it never freezes. If your car ever sees temps below 32 deg and if it sees more pavement other than the track you should run 50/50 or 60 water/40 coolant.

If you can get some kind of fiberoptic scope to look down in the radiator, that is probably your best bet. The prestone radiator flush is the best I have seen. It comes in a 2 part paper can and is a powder. It cleans everything out. ONly problem is that no cleaner or flush I have found will remove rust. They just are not made to do that.

hope this helps....

Andy

Tom L. Busby

Check the Manifold Air Temperature sensor and the wire too. If it it not working or the wire has a short the car will run lean and hot.

Pro Stock John

iTrader: (34)

1) Check the radiator

2) Make sure all the fans come on

3) Make sure you don't have a blown headgasket will the car cool off if you drive at a constant speed on the highway?

DRM C500/RSR

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Pro Stock John:
<strong>1) Check the radiator

2) Make sure all the fans come on

3) Make sure you don't have a blown headgasket will the car cool off if you drive at a constant speed on the highway?</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Radiator not leak...
I make a mistake that I use for almost one year the car with just regular water in the radiator and I think that is the problem... But need solution!!

The fans are ok...
In a high speed the coolant temp drop dramatically...

My problem is in traffic and the car in idle the temp go up to 220 and still going up if I decide to let the car in idle...

But a 6 months before, the car was in idle 24 hrs with no more than 200 in the coolant temp...

So, what do you think? I'm thinking to flush the car again, but wich is the best flusher in the market??

Thanks!!

strokedls1

iTrader: (1)

You could also reset the fan turn ons to a lower temp. I have dropped the temp down 15 degrees F by simply lowering the fan turn on. You may have diminished your flow rate with rust build up by running the car for a year with just water. No way to solve that except buying another radiator. The lt1 radiator works great on an ls1 after you block off the heater core outlet. Good luck.

Ragtop 99

iTrader: (7)

Did you mess with the wiring and reverse a connection? If one fan is pushing and the other pulling, cooling efficency drops.

DRM C500/RSR

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Ragtop 99:
<strong>Did you mess with the wiring and reverse a connection? If one fan is pushing and the other pulling, cooling efficency drops.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Thanks for all your recomendation about my trouble...
The things is the engine coolant's temp was running excellent by a year with no more than 200F in a high traffic and 105F day!!!
Then suddenly one day the coolant temp appear with 225F in a same condition day...
The mistake I did is I used the car for almost a year with just water in the radiator...
So I think I need to flush the car for correct the problem...
What do you think?

Which is the best flusher to do??

What coolant?

Which is the best coolant aditive??
Thanks for any input because I want to do this in the weekend!!
<img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />
Thanks!!

Pro Stock John

iTrader: (34)

Perhaps go somewhere to have it professionally flushed if you overheat the motor you can hurt the motor and so you don't want to be too thrifty on something like this.