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Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

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Old 09-21-2006, 02:40 PM   #1
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When doing a Thermostat is there any reason not to just skip 180* and go to 160*?
I will be adding 3.4pulley, and mayber plugs, PCM, FWI.
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Old 09-21-2006, 03:44 PM   #2
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If you are going to go to a 160F make sure you have the PCM first thats programed for the 160... 160 could end up being too low for the stock PCM and throw codes...

I'd say 180F untill you get the PCM

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Old 09-21-2006, 04:00 PM   #3
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I may be ording the PCM today so that is the basis for the question.
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Old 09-21-2006, 04:11 PM   #4
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Then, that'* your answer...
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Old 09-21-2006, 04:32 PM   #5
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Ok parts ordered and per Todd Allen 180* with my mods and maybe 160* in summer or with more "intense" mods.
Pun intended
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Old 09-21-2006, 07:25 PM   #6
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With just those mild mods, and going into winter, I'd definately say go with a 180. If you had more serious mods and/or it was summer I'd say go with a 160. But a 160 and winter don't go well together.

Shawn
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Old 09-21-2006, 08:26 PM   #7
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You're heat will be lousy in the winter with a 160.
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Old 09-21-2006, 10:20 PM   #8
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Quote:
Originally Posted by fantastic88
You're heat will be lousy in the winter with a 160.
I wouldn't be too sure about that. I have a drilled 160 in my STE and have had it for about as long as I've had the car. We have a drilled 160 in the other 3.1 turbo GP as well. 160* heat is still plenty warm. It takes a little bit longer to warm up (not much longer though) due to them being drilled, but a non drilled 160 will not have noticably colder heat than a stock or 180*. The only reason I'd run a warmer tstat in the winter is because you want the engine to warm up to 212* from time to time to boil the water in the crankcase, and you also don't want it too cold for other reasons. In warmer weather the engine will run warmer than the 160* most of the time and you don't have too many problems.

Just my $.02.
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Old 09-21-2006, 10:33 PM   #9
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I have a fairly heavily drilled 160 in my SSEi, and a mildly drilled 180 in the SLE (both L67'* for reference), and I notice the difference in how long it takes to get comfy inside as winter approaches. I'd do a 180 for now.

For my SSEi, it matters not. It'* being parked in the 'shop' for a little 'fun' this weekend, and won't emerge until spring.
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Old 09-22-2006, 02:00 AM   #10
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Quote:
Originally Posted by dbtk2
...The only reason I'd run a warmer tstat in the winter is because you want the engine to warm up to 212* from time to time to boil the water in the crankcase, and you also don't want it too cold for other reasons...
My car with the drilled 180 hasn't been above 200* in quite some time - only a couple times this summer. How much does it matter in your opinion?

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Originally Posted by willwren
...For my SSEi, it matters not. It'* being parked in the 'shop' for a little 'fun' this weekend, and won't emerge until spring.
Wow, that right foot is gonna get awfully itchy over the next several months
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