180 degree thermostat question
04-27-2006, 10:55 AM
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180 degree thermostat question
hey all,
i've been trolling a bit and noticed that most of you guys have swapped down to a 180 degree thermostat, some are using a 160. i have a mostly stock (intake and ignition mods) '95 L27. i figured the 180 would be my best bet.
i noticed some people mentioned drilling the t-stat before installation, but i haven't seen any details beyond that. does anyone have a picture of a drilled T-stat or a least a good explanation of what exactly to do?
thanks
-Marik
i've been trolling a bit and noticed that most of you guys have swapped down to a 180 degree thermostat, some are using a 160. i have a mostly stock (intake and ignition mods) '95 L27. i figured the 180 would be my best bet.
i noticed some people mentioned drilling the t-stat before installation, but i haven't seen any details beyond that. does anyone have a picture of a drilled T-stat or a least a good explanation of what exactly to do?
thanks
-Marik
04-27-2006, 10:59 AM
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The 180 will be best for you since you are practically stock. 160 is for more heavily modified cars. Drilling the 180 keeps a small but constant flow of coolant all the time, good for hot climates. It consists of drilling 1/16" holes on the inside of the rim of the t-stat. The holes should generally be equal distance away from each other, probably not vital, but I'd do it that way. 2 holes should also be sufficient for most people.
That'* all I can tell you. I don't have any pics.
That'* all I can tell you. I don't have any pics.
04-27-2006, 11:08 AM
#3
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Actually anything less than a 180 T stat should set a check engine light. And drilling holes is normally done on supercharged to increase the flow ability during boost periods where temps can spike quickly.
You are sure you have a 95 L27 and not a 95 L36? I'm unsure if the vans got the new motor a year after the Bonne or not.
You are sure you have a 95 L27 and not a 95 L36? I'm unsure if the vans got the new motor a year after the Bonne or not.
04-27-2006, 11:13 AM
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No Bonnies for 1995 got the L27, If they were Natrually Aspirated they got the L36 NA 3800 Series II motor... The Buick Lesabre and I think Buick Reagal still got the L27 Series I engine... I think the Olds 98 and Buick Park Avenue also got the series II if they were NA'd..
Yes on stock programming go no lower than a 180F T Stat, 160 will be too low..
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Yes on stock programming go no lower than a 180F T Stat, 160 will be too low..
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04-27-2006, 11:18 AM
#6
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Originally Posted by Marik_bathory
yeah the vans kept the L-27 another year, you know, to get rid of all the crap...
thanks guys
thanks guys
The TPI 3800 was a good motor and was more than up to the task of moving the transport around...
I guess we should say that some of the H,W and U Body( Minivan ) retained the L27 TPI 3800 for the 1995 Model year where the others went to the new L36...
But with that L27, some TR55'*, An intake, 180 T Stat, may make it feel a bit better...
Also can you look at the RPO list? I think its located behind pannel in the rear of the van... I'm wondering what gear ratio you have with that 3800... I'm thinking 3.06, I know in 96 they were using a 3.29 ratio with the 3400...
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04-27-2006, 11:19 AM
#7
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Originally Posted by BillBoost37
You are sure you have a 95 L27 and not a 95 L36? I'm unsure if the vans got the new motor a year after the Bonne or not.
04-27-2006, 11:20 AM
#8
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You live in Florida (Welcome to BC, BTW! 
), so it won't hurt you to drill your T'stat. Here'* a pic for you, but this is two 1/8" holes. You might want to go smaller, like 1/16"-3/32". 
Also, like said, stick with the 180*.
Edit: the pic, courtesy of harofreak00:
Hey, I live in Deltona. I'm like 30 minutes away.
), so it won't hurt you to drill your T'stat. Here'* a pic for you, but this is two 1/8" holes. You might want to go smaller, like 1/16"-3/32". Also, like said, stick with the 180*.Edit: the pic, courtesy of harofreak00:
Hey, I live in Deltona. I'm like 30 minutes away.
04-27-2006, 11:23 AM
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lash forgot the pic, then added it later, but here is another angle
http://i33.photobucket.com/albums/d6...2/DSC01251.jpg
http://i33.photobucket.com/albums/d6...2/DSC01251.jpg