i remember reading a while back that the optimum operating temperature for an ls1 was in the 170s, with a 160 tstat your not all the way there but your a hell of a lot close than with the stock tstat

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by really slow truck:
<strong>i remember reading a while back that the optimum operating temperature for an ls1 was in the 170s, with a 160 tstat your not all the way there but your a hell of a lot close than with the stock tstat</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">You are confusing two things;

For Performance purposes running it at 170-178 degrees is optimum.

For Emissions purposes running it at 210-215 degrees is optimum.

Most of us here are less concerned with emissions and more concerned with performance, which is why we go with cooler thermostats.

 

uhh.... nope, i think you misunderstood me <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

it should automatically be assumed that anything i say is going to be for performance and not for helping me get cleaner emmissions, as with most other people on this site like you said

thats why i said optimum temperature is in the 170s. Which is exactly what you said for the optimum temperature for performance gain.

my reply wasnt directly related to the post above. I just saying what the REAL optimum temp was, not the optimum temp for best emmissions.

bryan

<small>[ April 30, 2002, 10:41 AM: Message edited by: really slow truck ]</small>

 

Gotcha Bryan, just wanted to clarify. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

Trust me, I could care less about emissions myself. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

 

right now i am running around 180 with cruising. but in traffic it goes back up to stock around 195. has anybody tried that Royal Purple Coolant treatment and does it actually lower your temps?

 

hey ryan did yours go back up to that during the winter or just now that its hot as hell outside?

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by graygmc:
<strong>right now i am running around 180 with cruising. but in traffic it goes back up to stock around 195. has anybody tried that Royal Purple Coolant treatment and does it actually lower your temps?</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">If that's the same as the Water Wetter, I put that stuff in mine but really didn't notice a difference.

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by CMNTMXR57:
<strong> </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by TnTrk53:
<strong>The chevy techs say it is designed to run @ 210* but I'm use to seeing 180*, you know "old dog new trick". <img border="0" alt="[guns]" title="" src="graemlins/gr_guns.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">That Chevy Technician is correct. GM runs all their vehicles as close to 210 as possible for emissions purposes. A hotter engine burns off more hydrocarbons and other stuff.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Hmmm my factory stat keeps my truck at 195* the hottest it's ever gotten is like 199*.

 

yeah it just started to go up now that it is 90* here in Texas <img border="0" title="" alt="[Sad]" src="gr_sad.gif" />

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by RobZ71LM7:
<strong> </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by CMNTMXR57:
<strong> </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by TnTrk53:
<strong>The chevy techs say it is designed to run @ 210* but I'm use to seeing 180*, you know "old dog new trick". <img border="0" alt="[guns]" title="" src="graemlins/gr_guns.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">That Chevy Technician is correct. GM runs all their vehicles as close to 210 as possible for emissions purposes. A hotter engine burns off more hydrocarbons and other stuff.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Hmmm my factory stat keeps my truck at 195* the hottest it's ever gotten is like 199*.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">That's still hotter than optimum. Also, are you gauging this from reading your temp gauge? If so, the temp gauge on the instrument cluster is far from being the most accurate in the world.