BoneStock

Which one should I go with? Then what do I use to turn my fans on earlier and at what temperature.

Jabroni

I changed to a 180* Hypertech unit. The only way to get the fans on earlier is to either get a fan switch and run them manually, or reprogram with tuning (HPP3, etc.)

TA_2001

Here is a great method to change your stock
thermostat to what ever temp you want

http://www.ls1info.com/article.php?sid=180

I use the fan switch mod.. to turn on fans in
traffic and in staging lanes.. I have an after
market temp gauge to display true temps..

http://www.ls1info.com/article.php?sid=217

white2001s10

iTrader: (4)

I run no thermostat in the warm months,
and a 195* in winter.

ratio411

Use the free thermostat as mentioned above!
http://ls1info.com/article.php?sid=180

Then do the automatic fan switch.
http://ls1info.com/article.php?sid=222

Both of the above mods will run you $15-$25 depending on what thermostatic fan switch you use. The car will run consisent temps no matter weather, road, or traffic. The best part is they are super easy mods, the wiring is very little and NO wiring into the cabin. You also don't have to remember to turn the fans on/off as you do with a switch. Many folks have lost batteries that way.
Good luck
Dave

gwj

A self modded thermo combined w/earlier fan turn on times will make for cooler running in the summer.
Great summer mod, not so good in cold weather. The advantage I see for a commercial thermostat is that it stays totally closed until reaching it's opening temp-except for the small bypass orifice-whereas a modded thermo may hold the thermo open some even when totally relaxed. Depends on what climate you drive in in the winter, I guess.
Where is Glasgow? In the US I mean. :-)

ratio411

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by gwj:
<strong>...not so good in cold weather...</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I live in MN.
No problems in 3 years.
Dave