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85 V6 Thermostat

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Roadfury View Drop Down
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    Posted: 21 April 2008 at 3:19pm

What would be the best for driving the lower mainland...

PS I know theres already a thread on this but its for a 4cyl... Are they any different?

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Dr.Fiero View Drop Down
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Post Options Post Options   Quote Dr.Fiero Quote  Post ReplyReply Direct Link To This Post Posted: 21 April 2008 at 5:12pm
Don't let anyone tell you to run anything but the 'correct' one.  195F.  Year round.  If you NEED to swap it out in the summer (ie, you overheat) - you have a problem!  Fix it.  Don't bandaid it.

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Patrick View Drop Down
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Post Options Post Options   Quote Patrick Quote  Post ReplyReply Direct Link To This Post Posted: 21 April 2008 at 5:40pm

Originally posted by Dr.Fiero Dr.Fiero wrote:

Don't let anyone tell you to run anything but the 'correct' one.  195F. 

I take it then that you don't believe in using Rodney Dickman's 195° /185° fan switch along with a 180° thermostat?

I know there's some controversy over changing thermostats, but from what I understand, changing the thermostat to a 180° from a 195° (along with the different fan switch) shouldn't cause any problems with the ECM, and the engine bay should stay a little cooler.

Especially for electronics (ignition module, coil, alternator, etc), cooler is better.

Anyway, that's my story and I'm sticking to it.



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Dr.Fiero View Drop Down
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Post Options Post Options   Quote Dr.Fiero Quote  Post ReplyReply Direct Link To This Post Posted: 21 April 2008 at 5:56pm
180 is too close to the edge of the enrichment point in the ECM's map as far as I'm concerned.  Yeah, you can do it...  but if it drops even slightly, you kill your mileage.

The switch - It just turns the rad fan on earlier.  Oh, and BTW, that switch - it's the stock one out of an 85 Grand National turbo.  TS25691 Neihoff is the number (I'm doing that from memory).

I've only worked on a few hundred of these cars, and redone many PROM's though...  so...  what do I know...

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Patrick View Drop Down
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Post Options Post Options   Quote Patrick Quote  Post ReplyReply Direct Link To This Post Posted: 21 April 2008 at 6:08pm

Originally posted by Dr.Fiero Dr.Fiero wrote:


I've only worked on a few hundred of these cars, and redone many PROM's though...  so...  what do I know...

I hope you're not getting defensive about what I've posted. I'm only stating information that's already out there, I'm not pushing it.



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