160 Degree Thermostat and Car Issues.... - Page 8 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Mark Myles · 11-04-2010, 12:22 PM

M

blackonblacksls · 11-04-2010, 12:39 PM

Don't cars make more power with a cooler engine temp. Is that not one of the reasons guys like jannety make sure to match coolant temp when doing dyno comparisons.

If this holds true wouldn't a cooler stat make more power?

SlingShot · 11-04-2010, 01:05 PM

Quote:

Originally Posted by blackonblacksls

Don't cars make more power with a cooler engine temp. Is that not one of the reasons guys like jannety make sure to match coolant temp when doing dyno comparisons.

If this holds true wouldn't a cooler stat make more power?

It's the intake air temp and humidity that makes the difference. The only way to decrease the coolant temp would be by the radiator and or fan. You would have to increase the surface area of the cooling fins or increase the rate of air flow going over the fins in order to displace more heat.

2SSCAMARO · 11-04-2010, 01:20 PM

I have attached for your reading pleasure literature explaining detonation.
http://en.wikipedia.org/wiki/Engine_knocking

I suggest that one of our 6.2's fitted with long tube headers and a supercharger could easily be subjected to moderate detonation under the following conditions that could induce particle wear.
1. Ambient air temps in the 90's
2. High IAT temps of 130* or higher (common with SC)
3. City stop and go driving with a 192* thermostat allowing 220* coolant
temps
4. A tank of lets say "not the best" gas
5. Driving at low RPM's

One of the ways to keep the cylinder temps lower to minimize the possibly of undetectable mild to moderate detonation would be to keep the coolant temps lower.

JANNETTYRACING · 11-04-2010, 02:21 PM

Quote:

Originally Posted by blackonblacksls

Don't cars make more power with a cooler engine temp. Is that not one of the reasons guys like jannety make sure to match coolant temp when doing dyno comparisons.

If this holds true wouldn't a cooler stat make more power?

Matching the Coolant temps for back to back comparisons is for repeatability.

I run these cars from 175 through 205, and I always make the best most consistant power starting at 194 degrees.

Ted.

MarylandSpeed · 11-04-2010, 02:27 PM

I am confused. Normally a Camaro runs 210-230 and an SLP 160 T-stat normally drops that 20-30 degrees and it runs in the 190-200 degree range. If 194 is the right temp, what is the issue?

JustaCamaro · 11-04-2010, 03:13 PM

It gets hot in Oklahoma.

I have a supercharger and the stock thermostat-I never see coolant temps above 195.

I also tried the TR-6 plugs and went back to stock plugs-big improvement in driveability. No signs of distress after running 174 at the Texas mile with air temps of 92 degrees and humidity in the 90+ percent range.

Just my personal experience.

2SSCAMARO · 11-04-2010, 03:50 PM

Quote:

Originally Posted by JustaCamaro

It gets hot in Oklahoma.

I have a supercharger and the stock thermostat-I never see coolant temps above 195.

I also tried the TR-6 plugs and went back to stock plugs-big improvement in driveability. No signs of distress after running 174 at the Texas mile with air temps of 92 degrees and humidity in the 90+ percent range.

Just my personal experience.

I would say that if you never see higher than 195 coolant temps with a stock 192 thermostat, the thermostat is not fully closing. In that kind of heat, I think you should be seeing well over 200 even if you have your fans on earlier and longer. I had coolant temps as high as 230 degrees with the stock stat without fan setting changes.

caverman · 11-04-2010, 04:19 PM

Quote:

Originally Posted by aj2ssrs

The temp gauge is in the DIC. Switch to the diagnostics portion of the DIC and you can scroll between coolant temps, individual tire pressure, remaining oil life.

Thanks! I took a look at it when I went to go pick up the kids from school. Didn't know it was there. I'm going to start keeping an eye on that next time I'm at the track.

JustaCamaro · 11-04-2010, 04:20 PM

I have a Ted Jannetty tune, and I don't know what mods he may have made to the fan settings.
I don't constantly stare at the gauge, but looking back at some of my data logs the coolant temp is stable 192-195. A lot of this is at WOT.

aj2ssrs · 11-04-2010, 04:35 PM

Quote:

Originally Posted by MarylandSpeed

I am confused. Normally a Camaro runs 210-230 and an SLP 160 T-stat normally drops that 20-30 degrees and it runs in the 190-200 degree range. If 194 is the right temp, what is the issue?

I don't think there is any issue. This thread started with the OP having a problem overheating after installing a 160 thermostat and looking for advice. Someone later asked if a 160 thermostat is bad for his car and this is where we ended up. I have no intention of changing mine out, just trying to learn something and find out why some people are. I think most guys that have swapped also have a tune so their fans are programmed to come on sooner anyway. If that's the case, all their gaining is a few degrees cooler over someone tuned using the stock thermostat. You're saying the SLP T-stat puts you in the 190-200 range. Is that using the stock GM tune? If so, than it may make sense for someone looking to lower their coolant temps without getting tuned and possibly having warranty issues. Just trying to learn something.

2SSCAMARO · 11-04-2010, 05:10 PM

Quote:

Originally Posted by JustaCamaro

I have a Ted Jannetty tune, and I don't know what mods he may have made to the fan settings.
I don't constantly stare at the gauge, but looking back at some of my data logs the coolant temp is stable 192-195. A lot of this is at WOT.

If you can maintain those temps in city stop and go driving and in the staging lanes in hot 90+ weather, I'm impressed. Ted must have done a near perfect job with those fan settings. Obviously much better than mine.

JustaCamaro · 11-04-2010, 06:09 PM

I live in a small town-not a ton of stop and go-but it does reliably go over 100 here in the summer.

What I have seems to working. Ted has been extremely patient and helpful with my Vortech setup.
I have ordered his blower cam kit-you always need more!

Frost · 11-05-2010, 02:56 AM

The 160-stats will allow a little more resiliency against knock. These cars benefit from a cooler stat; that's a fact. I don't see the relevance of what Nascar/North team does with their SBC's; this is application specific. After seeing these in use for the last 5-6 years if was an issue it would be known. All of the OEM calibrators will tell you the same thing. They want the engines warm and they want them warm quick; it's all about emissions for them. I'm honestly pretty surprised to see ANY tuner with a solid background in this platform tell someone that a cheap mod like a stat is a waste of coin and even more surprised to see them claim the possibility of harm. There are many web-boards that cover the LS platform for even the last decade. The common issues are beat up on all of the boards. If they are an issue, where are the threads?

11-04-2010, 06:09 PM	#111
JustaCamaro Drives: 2010 Camaro SS Join Date: Feb 2010 Location: Oklahoma Posts: 247	I live in a small town-not a ton of stop and go-but it does reliably go over 100 here in the summer. What I have seems to working. Ted has been extremely patient and helpful with my Vortech setup. I have ordered his blower cam kit-you always need more! Last edited by JustaCamaro; 11-04-2010 at 06:37 PM.

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11-04-2010, 12:22 PM	#99
Mark Myles Drives: 2010 2SS/RS IBM / Silver Stripes Join Date: Mar 2010 Location: Northeast Michigan Posts: 601	M

11-04-2010, 12:39 PM	#100
blackonblacksls Drives: 2011 2ss/rs Join Date: Aug 2010 Location: houston Posts: 531	Don't cars make more power with a cooler engine temp. Is that not one of the reasons guys like jannety make sure to match coolant temp when doing dyno comparisons. If this holds true wouldn't a cooler stat make more power?

11-04-2010, 01:20 PM	#102
2SSCAMARO Drives: 2010 Camaro Auto Join Date: Mar 2010 Location: Fl Posts: 1,164	I have attached for your reading pleasure literature explaining detonation. http://en.wikipedia.org/wiki/Engine_knocking I suggest that one of our 6.2's fitted with long tube headers and a supercharger could easily be subjected to moderate detonation under the following conditions that could induce particle wear. 1. Ambient air temps in the 90's 2. High IAT temps of 130* or higher (common with SC) 3. City stop and go driving with a 192* thermostat allowing 220* coolant temps 4. A tank of lets say "not the best" gas 5. Driving at low RPM's One of the ways to keep the cylinder temps lower to minimize the possibly of undetectable mild to moderate detonation would be to keep the coolant temps lower.

11-04-2010, 02:27 PM	#104
MarylandSpeed Account Suspended Drives: 2012 ZL1 & 2010 2SS/RS Join Date: Jul 2009 Location: Maryland Posts: 3,378	I am confused. Normally a Camaro runs 210-230 and an SLP 160 T-stat normally drops that 20-30 degrees and it runs in the 190-200 degree range. If 194 is the right temp, what is the issue?

11-04-2010, 03:13 PM	#105
JustaCamaro Drives: 2010 Camaro SS Join Date: Feb 2010 Location: Oklahoma Posts: 247	It gets hot in Oklahoma. I have a supercharger and the stock thermostat-I never see coolant temps above 195. I also tried the TR-6 plugs and went back to stock plugs-big improvement in driveability. No signs of distress after running 174 at the Texas mile with air temps of 92 degrees and humidity in the 90+ percent range. Just my personal experience.

11-04-2010, 04:20 PM	#108
JustaCamaro Drives: 2010 Camaro SS Join Date: Feb 2010 Location: Oklahoma Posts: 247	I have a Ted Jannetty tune, and I don't know what mods he may have made to the fan settings. I don't constantly stare at the gauge, but looking back at some of my data logs the coolant temp is stable 192-195. A lot of this is at WOT.

11-05-2010, 02:56 AM	#112
Frost Drives: GM anything Join Date: Sep 2009 Location: Tuning GM in Richmond VA Posts: 147	The 160-stats will allow a little more resiliency against knock. These cars benefit from a cooler stat; that's a fact. I don't see the relevance of what Nascar/North team does with their SBC's; this is application specific. After seeing these in use for the last 5-6 years if was an issue it would be known. All of the OEM calibrators will tell you the same thing. They want the engines warm and they want them warm quick; it's all about emissions for them. I'm honestly pretty surprised to see ANY tuner with a solid background in this platform tell someone that a cheap mod like a stat is a waste of coin and even more surprised to see them claim the possibility of harm. There are many web-boards that cover the LS platform for even the last decade. The common issues are beat up on all of the boards. If they are an issue, where are the threads?