View Full Version : is 160 degrees bad?
importmaster1300
04-15-05, 09:38 PM
Cause that is what my operating temp is. I have a 180 deg t-stat and a tauras fan
JROD©™®
04-15-05, 09:44 PM
don't think thats optimal engine operating temperatures...do you have HPP3?
nevermind i see your signature doesn't say that you do...thats a little too cool to be running man...not good for the engine...
Sparky2263
04-15-05, 09:45 PM
I wouldn't trust the instrument panel to be accurate. A scanner is generally within 2 degrees. Instrument panel gauges are better for trends not accuracy.
they make 160 thremastats and peolpe use them but some people say there good and some say there not. i have a 180 and my temp stays around 180-200. but factory guages are not that acurate
ZR1-S10
04-15-05, 10:57 PM
160 is the min for the ECU to go into closed loop. As far as people saying there hurt the engine, I run 160-tstat and I'm fine. 1996-1998 run 160*, 1998+ run 180*.
stepside2k1s10
04-15-05, 11:21 PM
My thermostat is about 205-210(stock of course), I'm not sure if you want to be running it that cool or not
JROD©™®
04-15-05, 11:29 PM
i heard many times tha t 160 stat is not a good idea unless you have the hpp3. but he has a 180 therefore i don't know why his tempo is at 160...but then again like the dude up there says...might no be accurate. my normal engine operating temp is 202.9 give or take 2 degrees...i still think 160 is too cool...
Maximus
04-15-05, 11:35 PM
I run a 160 in the summer and a 180 in the winter.It runs a little better with the 160 but yours being a OBDII you might run in to check engine light problems and you might not.Even with a 160 stat in mine it still goes in to closed loop no problems and it mantains a 14.7-1 air fuel mix evenly.But all vehicles respond different so it's a coin toss if it will cause you problems or help.
here's what you need to know and why the half of us say a hotter state and half of us say colder.
you have an aluminum head, a plastic manifold, a cast iron block, high grade steel rotating asembley, aluminum pistons, and moly rings. All this are are disimular in nature and or machined and cast with certain tolerances so at operating temp they all work at their best together.
aluminum heads disapate heat faster than the old iron heads. that being said there is a basic theory here. you ever look at a serious dragster. You'll this tiny radiator or this this thing that resmbles a coffee can. A bbc with basically no cooling running multiple spark plug and reving up to super high rmps that we can only dream off getting our engine to.These engines or hot when they get on the line and run even hotter and burn gallons of fuel per cylender seconds. How do they do it?
I'm not quite sure of how to explain this without starteing a war so I sugest you look this up for yourself.Iron heads hold the heat giveing you a stonger reaction inside the combution chamber. makeing more HP, but the hp gain is far out weighed by the weight advantage of aluminum heads. here where it get confusing. don't get the actualy reaction from the combution of matirale mixed up with charge. the matiriale is the charge (in this case a mixtur or feul and oxygen) the heat inside the combustion chamber helped set off the charge and cause a reaction. It's like this your fuel has a flash point the faster you can get that fuel to the flashpoint the more you can burn. If you can introduse a colder chare and ignite it the same rate as hotter charge you have much more violent reaction. so by keeping the temp inside the chamber and introdusing a cold charge you more quickly flash the matirale than introduseing a cold charge into a cold cumbustion camber giving you more bang for the buck.
importmaster1300
04-16-05, 05:07 AM
I have an aftermarker temp gauge I have it T'd with the stock sensor. Oh and I forgot, I have full open ram air.
importmaster1300
04-16-05, 05:12 AM
Oh yeah, when I shut the truck off for a while and get back in it later the temp reads 180!
Sparky2263
04-17-05, 12:54 AM
That's called heat soak. All the appendages attached to the engine giving it's heat back.
i run around 150-60 with my 180 tstat, I just got my system flushed today also.
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