06-22-2007
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#1
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Pewp Champion
Join Date: Nov 2003
Location: Blaine
Drives: Teh Bean
Posts: 12,309
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Re: Drilling thermostat
Well I took it on a little road trip to test it again since Mark's shop really wasn't that far away. After about 15 minutes, the temps climbed and the CEL came on. So I turned on the heater, CEL went away, and we drove probably another 45 minutes with the heater on and it worked fine. If we turned the heater off, the temps would climb again. I am going to be installing a vent in the hood, just over the exhaust manifold. Hopefully that will help to expel a lot of the heat in that area, and help out my situation a little. It'll look similar to this, but I'm only doing the big one in the center, not 2 of them like they did here
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06-22-2007
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#2
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Pewp Champion
Join Date: Nov 2003
Location: Blaine
Drives: Teh Bean
Posts: 12,309
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Re: Drilling thermostat
Ya I have checked this as well, the are pulling. I do have a small exhaust leak between the turbo and manifold. Bolts are tightened and gasket is installed, but something must not be flat. Could that exhaust escaping there be so hot to actually have an affect on anything? I'm really digging for anything here as I'm still pretty confused. I may just swap the headgasket even though no tests have shown it to be bad. But I'm just really digging and starting to run out of ideas.
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06-25-2007
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#3
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Unsure resident asshole
Join Date: Mar 2005
Location: MN
Drives: '92 Eagle TalonTSI w/many mods
Posts: 3,696
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Re: Drilling thermostat
__________________
Black 1GB Mafia #1
744AWHP/526TQ-Shootout mode
639.6AWHP/452TQ-DB's dyno
I wanna go fast.
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06-25-2007
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#4
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Is funding Exxon.
Join Date: Oct 2003
Location: Ham Lake
Drives: like a bat outta hell!
Posts: 7,983
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Re: Drilling thermostat
I have the invader style hood on my car and it has a vent right over the exhaust manifold. I really didn't notice a difference with it. Are you still running E85? If so, there has to be something seriously wrong, I can't imagine what it would do on gas. The AC condensor does inhibit the air flow quite a bit, I got rid of my cooling problems with I ditched the AC.
__________________
Is burning corn and stayin' warm!
My motorcycle is stock and reliable, my Talon is neither!
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06-25-2007
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#5
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Pewp Champion
Join Date: Nov 2003
Location: Blaine
Drives: Teh Bean
Posts: 12,309
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Re: Drilling thermostat
I really don't want to ditch my A/C. I am going to be putting on a new headgasket. Going back to an OEM composite one. At the same time, I will be putting in a new water pump, and also replacing that o ring seal on the water pipe. This problem did start showing up right after that whole incident in the Menards parking lot. I'm wondering if it isn't as sealed as it should be, and we didn't see it on the pressure test because it's so tucked away.
I love how the invader hoods look on the 92's, but not so much on the 91's, so I will just be getting one of those vents from Carbon Trix.
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06-25-2007
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#6
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Pewp Champion
Join Date: Nov 2003
Location: Blaine
Drives: Teh Bean
Posts: 12,309
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Re: Drilling thermostat
I've also been reading on some other boards, and it seems I am far from alone when it comes to phantom running hot issues.. Tons of people are having cooling issues. I will just keep working at it until it's fixed. About all I can do.
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06-25-2007
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#7
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Wanker
Join Date: Nov 2005
Location: St Paul, MN
Drives: 95 M3
Posts: 1,027
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Re: Drilling thermostat
Do you have any ducting at all? I seem to remember your fmic piping running just around the radiator. If so you probably have room to put a couple small scoops on either side of the fmic. I added some on mine just between the fmic and the fogs and it helped cruising temps quite a bit.
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06-26-2007
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#8
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Pewp Champion
Join Date: Nov 2003
Location: Blaine
Drives: Teh Bean
Posts: 12,309
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Re: Drilling thermostat
Ducting would be a bit difficult, as my FMIC is now the Victory one with the backdoor style endtanks. Really not much room for anything there anymore. But I may try adding a little baffle below, like what Carl had put a picture up of. I'm almost willing to try anything at this point! I even seen one guy on another forum with a 2nd small radiator in the fender well. I'm definately not the only one dealing with this crap.
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06-26-2007
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#9
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Join Date: Feb 2004
Location: I wish somewhere less rainy!
Drives: She is 22, black, slow and does not play fair.
Posts: 791
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Re: Drilling thermostat
I think your problem is your AC condesor with your big radiator. It is stopping alot of air flow. Before you go through tearing your car apart. What about sticking a stock radiator back in. I was going to buy a big radiator but after reading a bit on the effects I went with a stock one again. I no longer have the AC condensor and only running one fan and I don't have an over heating problem. I am also running the same head gasket.
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07-23-2007
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#10
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Join Date: Mar 2007
Location: brooklyn park, mn
Posts: 168
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Re: Drilling thermostat
Make sure you don't have combustion leak into coolant passage. you might have a small leak.
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07-23-2007
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#11
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Pewp Champion
Join Date: Nov 2003
Location: Blaine
Drives: Teh Bean
Posts: 12,309
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Re: Drilling thermostat
I actually just bought one of those testers that is supposed to check for combustion gases in your coolant system. It doesn't work worth a damn though because it keeps sucking in coolant. I did put the vent in the hood, and that didn't do much
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08-23-2007
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#12
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Pewp Champion
Join Date: Nov 2003
Location: Blaine
Drives: Teh Bean
Posts: 12,309
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Re: Drilling thermostat
OK, replaced the old Cometic head gasket with a OEM composite one, headstuds torqued to 100lbs using ARP Moly Lube. Also installed new water pump (the better design) and new O-ring.
She is still running hot. Time to make some baffles to help more air get through the radiator.
One other thing I was thinking about since I really want to retain my A/C. I was going to try and find a smaller profile condensor since I don't use my A/C that much, and it would block less air going into the radiator.
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08-23-2007
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#13
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Unsure resident asshole
Join Date: Mar 2005
Location: MN
Drives: '92 Eagle TalonTSI w/many mods
Posts: 3,696
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Re: Drilling thermostat
You sure the gauge just isn't off? Have you tried running an aftermarket one? That was the issue with mine.
-A. Swift
__________________
Black 1GB Mafia #1
744AWHP/526TQ-Shootout mode
639.6AWHP/452TQ-DB's dyno
I wanna go fast.
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08-23-2007
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#14
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Admin
Join Date: Oct 2003
Location: Sportsman's Paradise, LA.
Posts: 5,382
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Re: Drilling thermostat
Can you read the temp of the ECU for comparison?
__________________
"You don't have a clue. You couldn't get a clue during the clue mating season in a field full of horny clues if you smeared your body with clue musk and did the clue mating dance."
When she get's bitchy, SPANK THAT ASS! (#Y#)
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08-23-2007
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#15
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flips McGee
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Re: Drilling thermostat
Have you tried wiring your fans to a relay yet? I had this same issue with my 2G, and the fans were simply turning off, no idea why!
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08-23-2007
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#16
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Pewp Champion
Join Date: Nov 2003
Location: Blaine
Drives: Teh Bean
Posts: 12,309
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Re: Drilling thermostat
I can log my Coolant temp through DSMLink, and this is not just the gauge. The temp gets above 200, and has reached 220 in the past (which is when I have DSMLink turn on my check engine light).
One thing I suppose I haven't done, is to actually replace the temp sensor. Because if it's off, well then everything is going to read wrong. Anyone ever heard of those going out of calibration?
Scheides, I have both fans, hard wired to be running whenever the key is in the ON position.
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08-23-2007
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#17
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Re: Drilling thermostat
I would get stronger fans. Does it overheat on teh freeway at high speeds or just when putzing around town?
My gsx was always fine on the freeway 200 degrees or so, then climbed to 215 on side streets and such. My fans werent strong enough...
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08-23-2007
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#18
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Admin
Join Date: Oct 2003
Location: Sportsman's Paradise, LA.
Posts: 5,382
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Re: Drilling thermostat
A bad sensor could do it. What radiator do you have and how old?
__________________
"You don't have a clue. You couldn't get a clue during the clue mating season in a field full of horny clues if you smeared your body with clue musk and did the clue mating dance."
When she get's bitchy, SPANK THAT ASS! (#Y#)
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08-23-2007
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#19
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Re: Drilling thermostat
It also could be that radiator you bought, isnt it just a knock off aluminum?
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08-23-2007
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#20
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Join Date: Oct 2003
Location: edward lake
Drives: toaster
Posts: 6,431
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Re: Drilling thermostat
the evo had a bad temp sensor in it the first time I had it running for 5 min it said it was over 300 new sensor in it now it works fine.
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