180 degree thermostat???

[duce]

ok.. you guys have guess by now that i am new to mod,s on anything to do with truck,s.so bare with me on ? that you will find very easy to answer.so here,s another. i am all fore more speed and every little bit helps so how do i go about changing my thermostat from whatever we have now (stock) to a 180 or (lower)if possible.and what do i look for at the store????

[a2b]

mine is a 180.

160 sets off the ses light.

i ordered mine off the internet from.....i forget.

sorry, its 5am and i have had too much to drink

[Justin]

dont worry hobie...after i hit that telephone pole friday night, i had a little too much too

[HenryJ]

so how do i go about changing my thermostat from whatever we have now (stock) to a 180 or (lower)if possible.and what do i look for at the store????

Hobie is right, lower is not possible without setting the SES light.

There is only one choice for a 180* stat. , Jet.

Read this thread for more info and the part #: 03 HPP III & 160 thermo

[a2b]

dont worry hobie...after i hit that telephone pole friday night, i had a little too much too

hey, what are you doing in the crew with too much to drink????

come on, lets get it together. i left my crew at home and drove my wife car last night





and yes it was a jet performance 180 stat

[duce]

ok i order one.now i never changed a thermostat before so any tips on how would be very much apprecated...

[a2b]

ok i order one.now i never changed a thermostat before so any tips on how would be very much apprecated...

try that
Low temp stat page

[duce]

thanks a2b my list of mods just keep getting bigger

[HenryJ]

I came across some information on thermostats-
Thermostatically Speaking
Looks like some good stuff.

The graph below illustrates the importance of how critical optimum coolant temperature is to the longevity and performance of an internal combustion engine. Cool water makes good horsepower, to a point. Warm water minimizes engine cylinder wear, to a point also.

However, there is a "middle ground" where both optimum performance as well as minimal wear share similar characteristics. That "magic" number lies in the 175-180 degree range, which requires a 180 degree thermostat..



The all too commonly used 160 degree thermostat is way too low to be considered for performance or engine longevity. As the chart illustrates, engine wear increased by double at 160, than at 185 degrees. So then, why do the 160's exist in the first place? The 160's were commonly used in older, open loop cooling systems where only 6 pound radiator caps were used, and low 212 degree boiling points were experienced. In contrast, modern cooling systems can see upwards of 260 degrees in coolant temperature with radiator pressures exceeding 45 pounds. Many early hot rodders found the 160's to be better performing than the 190's, however, the in between "180" appears to satisfy both ends of the spectrum. The correct water temperature is required for the cylinders to achieve a minimum specific temperature in order to allow a fully homogenized Air/Fuel mixture to combust efficiently. Guess what the minimum number is… right! 180 degrees. Even so, you might see some still recommending the lower 160's, for no other reason than to possibly get that last drop of horsepower out, at the high price of dramatically reducing the life of the engine and it's internal components.

[bwenny247]

I've got the hypertech 180 degree stat and haven't had any problems as of yet. i did read in the hypertech manual that "For 4.3 & 8.1: vehicles, Hypertech recommends using the stock thermostat"
I'm not sure why but they must have their reasons, anyone have any ideas why they would recommend this????

[HenryJ]

..."For 4.3 & 8.1: vehicles, Hypertech recommends using the stock thermostat"
I'm not sure why but they must have their reasons, anyone have any ideas why they would recommend this????

The PCM is set too tight.
The threashold is 178*, the colder stats tend to set the MIL.

As I understand it they did try a colder stat and the performance gains did not warrant the use of the cooler thermostat.