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To drill or not to drill - 180 themostat in an NA
Originally Posted by charliemax
".... I wasn't going to believe him and was waiting restlessly to get past the warranty so I could put on an aluminum LIM and Dorman plenum.
The Pontiac guy was great. Seriously, I gave him bare facts and that's it. I wanted as neutral opinion as I could get from a dealer. He comes back with a grand slam. He gave me a written estimate for @ $750. It didn't itemize, so thermostat and oil change would probably add. I want to put in the drilled 180 as soon as it goes off warranty anyway. " . Why are you contenplating a drilled 180 thermostat? Your car isn't supercharged. A regular 180 without drilling should be more than adequate. If you drill, you run the possibiliity of not heating up enough. |
I've got a drilled 180 and it sure seems fine to me. My aeroforce has me sitting at 179-180 at cruise...
It obviously takes longer to warm up, but I don't think 5-7 minutes is crazy. It should be easier to bleed any air out of the system with holes at the 6 and 12 position I would think. |
Originally Posted by BillBoost37
Why are you contenplating a drilled 180 thermostat? Your car isn't supercharged. A regular 180 without drilling should be more than adequate. If you drill, you run the possibiliity of not heating up enough.
It did it later last winter. If the heat up is an issue in the coming season, i'll drop in a plain 180. |
Why drop in a balanced thermostat and be done with it? Yes I realize that drilling your own is moe economical but a balanced thermostat has other benefits additionally, esp for you heavy footed sc guys and gals. :)
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(I think it would be good to move the thermostat discussion off to its own thread.)
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Originally Posted by Bugsi
(I think it would be good to move the thermostat discussion off to its own thread.)
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Drilled 180's will benefit an L36 in longevity and reliability as much as it will an L67 in performance. Maybe more.
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Originally Posted by willwren
Drilled 180's will benefit an L36 in longevity and reliability as much as it will an L67 in performance. Maybe more.
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L36's, just like L67's, like being colder. Mine ran significantly better when it was colder (engine temps not air temps) then it did when it was warm. Going from a stock 195* tstat to a 180* tstat I noticed a good difference. Drilling the 180 would only help that much more. I really don't see a problem with it. Its not completely necessary, but neither is a colder thermostat at all.
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If you do drill, just don't OVERdrill. Make 'em small. The drilled holes help keep air pockets from being trapped.
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