maybe2fast Posted August 30, 2005 Report Share Posted August 30, 2005 I am getting the chip on the Reatta retuned and I was wondering the best timing of the fans for a 180 degree stat? fan #1 turn on____degree fan #1 turn off____degree fan #2 turn on____degree fan #2 turn off____degree thanks guys and I know the post could be in other cars but the same info can be used in the W cars so I thought it would be better in general Quote Link to comment Share on other sites More sharing options...
1990lumina Posted August 30, 2005 Report Share Posted August 30, 2005 I dunno exact temps that would be good, but anything lower then stock should be good! Like 200 and 207 maybe??? Personally, I'd have both of them turn on at the same time for maximum cooling, espcially in stop and go traffic. Though in winter you don't want them to cool down the car to much because you have any heat, and the engine won't warm up properly. Quote Link to comment Share on other sites More sharing options...
slick Posted August 30, 2005 Report Share Posted August 30, 2005 Don, what degree thermostat do you have in there? Also, what are stock numbers for the fans to turn on in your Reatta? Quote Link to comment Share on other sites More sharing options...
maybe2fast Posted August 30, 2005 Author Report Share Posted August 30, 2005 I want to put in a 180 stat and I have a 195 stat presently I will check the stock numbers Quote Link to comment Share on other sites More sharing options...
slick Posted August 30, 2005 Report Share Posted August 30, 2005 Before you put the chip in, get the 180* installed. I'd do fan #1 turn on 180 fan #2 turn on 210 Thats going by what a normal 60* engine runs. Im unsure at what temps your 90* runs at, but as soon as you get the #'s, let us know. Quote Link to comment Share on other sites More sharing options...
digitaloutsider Posted August 30, 2005 Report Share Posted August 30, 2005 90*'s do NOT like hot temperatures. The first thing most Bonneville/'97+ GP owners do is swap in a cooler thermostat. I'm not even running one in my car at the moment. The cooler you can keep that 3800, the happier it'll be. Quote Link to comment Share on other sites More sharing options...
futuretgper Posted August 30, 2005 Report Share Posted August 30, 2005 why is it that i always see the 3800 guys running 180 t-stats and not 160?? Quote Link to comment Share on other sites More sharing options...
jragsdale262 Posted August 30, 2005 Report Share Posted August 30, 2005 Because if I'm not mistaken theres cylinder damage that can happen running at too low of a temperature (basically the cooler you have the engine the more wear that occurs). Correct me if I'm wrong there guys. Quote Link to comment Share on other sites More sharing options...
digitaloutsider Posted August 30, 2005 Report Share Posted August 30, 2005 No. Cylender damage will only occur if the computer is not set to turn on the fans at the appopriate time, and the rapid contraction and expansion can cause cracked heads, and cylenders, etc. Most 3800's with a 160 T-stat will STAY around 160, regardless of PCM. They're generally cooler running motors. And futuretgp'r, I see more 160* T-stats than anything else around ClubGP/BonnevilleClub Quote Link to comment Share on other sites More sharing options...
jragsdale262 Posted August 30, 2005 Report Share Posted August 30, 2005 I see what you mean now...thank you for explaining that further. Quote Link to comment Share on other sites More sharing options...
maybe2fast Posted August 31, 2005 Author Report Share Posted August 31, 2005 fan #1 turn on____degree fan #1 turn off____degree fan #2 turn on____degree fan #2 turn off____degree Quote Link to comment Share on other sites More sharing options...
slick Posted September 1, 2005 Report Share Posted September 1, 2005 fan #1 turn on____degree fan #1 turn off____degree fan #2 turn on____degree fan #2 turn off____degree With 180* thermo, Fan #1 turn on at 170, turn off at 170 Fan #2 turn on at 200, turn off at 190 Quote Link to comment Share on other sites More sharing options...
maybe2fast Posted September 1, 2005 Author Report Share Posted September 1, 2005 I talked to Ben (Vegeta) he said...Fan 1, id set on at 190, off at 187. Fan 2, on at 195, off at 188. Quote Link to comment Share on other sites More sharing options...
93CutlassSupreme Posted September 1, 2005 Report Share Posted September 1, 2005 fan #1 turn on____degree fan #1 turn off____degree fan #2 turn on____degree fan #2 turn off____degree With 180* thermo, Fan #1 turn on at 170, turn off at 170 Fan #2 turn on at 200, turn off at 190 why would you want radidator fans on if the thermostat isn't open? Quote Link to comment Share on other sites More sharing options...
GutlessSupreme Posted September 1, 2005 Report Share Posted September 1, 2005 I wouldn't want a fan just turning on as the t-stat opens. I dunno that just doesn't make sense to me.. the fan will pretty much be running nonstop once the cars up to operating temp. I'd say 200 at least for the first fan. Quote Link to comment Share on other sites More sharing options...
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