Hey everyone, I looked around and what I find is everyone swears by a 180 thermostat to keep the engine cooler which gives it more HP and will help it last longer. Alright, understood?My question is what are the effects on fuel consumption, if any? Does the stat have any effects on fuel consumption by itself or used in conjunction with other mods? I just want to make sure my D won't think I'm going too lean on fuel, especially since fuel/air changes have been made (Fastman TB, K&N FIPK) and more are planned?M1 manifold and possibly ported heads. Thanks in advance.
Effects of a 180 Stat?
01_EOD/R/T
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Hey everyone, I looked around and what I find is everyone swears by a 180 thermostat to keep the engine cooler which gives it more HP and will help it last longer. Alright, understood?My question is what are the effects on fuel consumption, if any? Does the stat have any effects on fuel consumption by itself or used in conjunction with other mods? I just want to make sure my D won't think I'm going too lean on fuel, especially since fuel/air changes have been made (Fastman TB, K&N FIPK) and more are planned?M1 manifold and possibly ported heads. Thanks in advance.
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With your mods past and future, a 180 stat is indeed in order.
If you went with an available 165 stat? bad news and PCM fuel problems like you mentioned.
The only MPG issues you have with a 180 is that you may loose mileage due to a heavier right foot on the gas more due to a small HP gain. That's it.
Mod away! There are failsafe 180 stats available that fail in the open position if and when they fail. I don't have the brand or part number but if I had to do it over again, I'd make sure mine was one of those (it might be already and I don't know it. My 180 is from Jet, the same folks who make the Jet Chips).
My 180 stat = $10 from http://www.summitracing.com/
Stat gasket = 99¢ from AutoZone
IndyDurango
If you went with an available 165 stat? bad news and PCM fuel problems like you mentioned.
The only MPG issues you have with a 180 is that you may loose mileage due to a heavier right foot on the gas more due to a small HP gain. That's it.
Mod away! There are failsafe 180 stats available that fail in the open position if and when they fail. I don't have the brand or part number but if I had to do it over again, I'd make sure mine was one of those (it might be already and I don't know it. My 180 is from Jet, the same folks who make the Jet Chips).
My 180 stat = $10 from http://www.summitracing.com/
Stat gasket = 99¢ from AutoZone
IndyDurango
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153 Posts
Thanks a lot Indy! I wanted to hear it from someone who's got one, not some clown at a repair shop who doesn't drive a Durango. You know what I mean. I wanted to be careful based off of past experience when I had a 1999 Blazer I bought new. Chevy runs those to be at about 210 and I though to myself that's way hot?so of course I took it down to, I think 180 but it could have been less than that even. It caused all kinds of problems?Chevy dealer told me afterward they designed those engines to run hotter. Anyways thanks a lot, if anyone else has anything to put in about it, I'll definitely give it read. Thanks!
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752 Posts
We put in a 180 stat when I got my M1 AND the 1.7 rockers AND pretty close to the day I put in the MPPCM, so I can't say for the stat alone? But at least it hasn't caused any problems. Still get the fan roar on hot days, in traffic, but heck, that's a D thang!
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Same here, sounds good though. I found a guy selling brand new valve covers (black crinkle paint) so I got those from him for $100 and I'm going to get his set of 1.7 rockers and pushrods probably as well. I'll keep it all tucked away till I get the M1 and then do it al at once so I'm not duplicating labor so much.
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Ahh Yes I remember hearing that you were the beer guy at the Mod Party!RobDA said:They're indeed due to the Amazing Dan the Fastman, uh, Man!
The "We" I referred to was Dan and HeavyD doing most of the hard stuff. I was the beer guy.
That was just before the plant tour.
Steve
DOC Pres
That's funny, my 94 Corvette always ran @ 220-230deg. When I inquired with a local Corvette place, I was told that that was by design. The engine came with Mobile 1 from the factory and requires synthetic oil because of it.01_EOD/R/T said:
Also, I tried a 165deg stat in an S10 I used to have and my mileage went to crap along with various other related problems.
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122 Posts
4.7L motor?
Guys does the 180 stat work for the 4.7L motor as well? TKS?
M
Guys does the 180 stat work for the 4.7L motor as well? TKS?
M
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15,117 Posts
No :!:
Get a FACTORY stock replacement stat on your 4.7l and you'll have the very best available. A new sat is something to get every once in a while anyways. Just avoid aftermarket ones for your motor. Seems that for whatever reason, they're missing a dimple here and a little hole there that actually make them WORSE that factory.
Also note, the 4.7l has a special way you'll need to 'burb' it to get the air out correctly. Otherwise, overheating issues creep up due to trapped air.
Besides (my ribbin' time now, hang on boys ) it's not like the 4.7l needs to worry about any real added performance anyways. What do you want to be like? Say a? 5.9L?
LOL
IndyD <--- serious on the stocker stat and burbing
Get a FACTORY stock replacement stat on your 4.7l and you'll have the very best available. A new sat is something to get every once in a while anyways. Just avoid aftermarket ones for your motor. Seems that for whatever reason, they're missing a dimple here and a little hole there that actually make them WORSE that factory.
Also note, the 4.7l has a special way you'll need to 'burb' it to get the air out correctly. Otherwise, overheating issues creep up due to trapped air.
Besides (my ribbin' time now, hang on boys
) it's not like the 4.7l needs to worry about any real added performance anyways. What do you want to be like? Say a? 5.9L?LOL
IndyD <--- serious on the stocker stat and burbing
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28,332 Posts
Not Nice Indy!IndyDurango said:No :!:
Get a FACTORY stock replacement stat on your 4.7l and you'll have the very best available. A new sat is something to get every once in a while anyways. Just avoid aftermarket ones for your motor. Seems that for whatever reason, they're missing a dimple here and a little hole there that actually make them WORSE that factory.
Also note, the 4.7l has a special way you'll need to 'burb' it to get the air out correctly. Otherwise, overheating issues creep up due to trapped air.
Besides (my ribbin' time now, hang on boys
LOL
IndyD <--- serious on the stocker stat and burbing
As he stated just keep the stock type stat
some will tell you its fine but you get too many temp fluctauations and tehwater jackets on a 4.7 block flow a certain way during warm and tehn it changes when stat opens
Steve
DOC Pres
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t-stat
OK guys I see thanks. Glad I got one of those effecient 4.7L motors that gets more mileage and more power than the big ones
OK guys I see thanks. Glad I got one of those effecient 4.7L motors that gets more mileage and more power than the big ones
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15,117 Posts
My 5.9L brothern to the rescue while I'm away. Nice Adde! LOLAdde said:more power now don't kidd yourself :roll: :twisted:ML Clayton said:OK guys I see thanks. Glad I got one of those effecient 4.7L motors that gets more mileage and more power than the big ones
IndyD
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