Well guys, got the car fired up on Saturday to make sure everything was set fine, had a very very rough idle, I would try to slowly rev up the car and it would crap out on me at 2K and drop the rpms to idle automatically, but if I romped on the gas, it would go up just fine. Got it all back together Saturday night around 10:00pm and went for a spin. On the freeway car is cruising, exhaust sounds different, but awesome, very smooth. A/C is on full blast, the car is not overheating at all!!

I pull off the freeway to turn around, I pull through an intersection, waiting for the light to turn back on to the freeway and my check engine light comes on...WTF...look at the coolant temp and it is soaring, just sitting there, so I turn off the A/C it drops a tiny bit, I pull onto the onramp and it is screaming high, so I shut it down, throw on the hazards and throw up the hood. Steam follows, the upper radiator hose blew off...dammit.

I call up my girlfriend to come rescue me so I can go get some water. I throw about a gallon and a half of water into the system and drive her back home.

Sunday:
Throw in the water wetter and some antifreeze to top the system off. Girlfriend and I drive to church, everything seems fine, but no need for very much A/C. Drive back home at around 12:30, it's about 105* outside and my temps start climbing. Turn the A/C back down to the first notch and the temp going to just above normal....all that work I did was for nothing.

My Options:
1) Antifreeze mixture is too much water, probably around 75% water right now, need to throw in more antifreeze.
2) Stock A/C fan just isn't going to cut it, need to get a spal ASAP



fuck I hate this car.


...at least it doesn't look like there is any more oil in my antifreeze.






Any more suggestions, greatly appreciated.

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Interesting........to say the least.

Does it overheat at idle and while cruising or just while cruising?

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Jerrome B.
1995 GSX - Race
1997 GST - Drive
1995 GST - Who the hell knows

maybe try building a sheet metal shroud???

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2003.5 M3
99 M3
99 GST

The water/antifreeze ratio is fine. You actually want about 80% water/20% antifreeze. The more water, the better the cooling.

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-Tony <--- NOT asian.
'06 Wicked White EVO IX

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here is the easiest solution, stop using the a/c.....


other than that, keep us posted.

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Do you even need antifreeze when temps stay in the 100's ?
Are you sure you had enuff coolant in the system from the get go ? When you first put it in , did you turn the heat on high to let the thermostat open so the coolant could go threw the entire car ? Did you pressure test the car ?


WWW.CNNMOTORSPORTS.COM

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-Tony <--- NOT asian.
'06 Wicked White EVO IX

Don't be so down on yourself.

Your problem is fixed.

A blown HG solved.

You car doesn't overheat at idle it doesn't overheat with the A/C off and it doesn't overheat with A/C on low.

What are the Temps according to DSMlink when the A/C is on the first notch where you said the temps were a little above normal.

Another thing to check, Are both of your fans turning on when you turn the A/C on?

I was just thinking. Maybe your fan is not spinning as fast as it should be causing you to over heat . Maybe your blower is blowing high but your fan is not.

Check that.
WWW.CNNMOTORSPORTS.COM

Yeah, I only have these same problems when I only have my one fan in.

Boca Raton, Florida
95 Eclipse GS- sold
99 Eclipse GSX- 386awhp
98 Eclipse GS- sold
92 Prelude

I dunno...I know I need to replace the stock A/C fan with a spal, since I have the normal fan replaced already, but I'm going to go into DSMlink and turn both fans on full time and see if that help. At least I will know I have a potential fan problem that way.

Kinda out of ideas here...cut front bumper???

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Originally posted by FlyinEsi
I dunno...I know I need to replace the stock A/C fan with a spal, since I have the normal fan replaced already, but I'm going to go into DSMlink and turn both fans on full time and see if that help. At least I will know I have a potential fan problem that way. Kinda out of ideas here...cut front bumper???

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Jerrome B.
1995 GSX - Race
1997 GST - Drive
1995 GST - Who the hell knows

Already put the 30 value in there last weekend, fan doesn't seem to be coming on any sooner on the stock fan, don't know about the A/C fan, because the car has to be on, and I just haven't tested it to tell you the truth.

But I will be looking at all options before I cut the front bumper up. Like buying a spal.

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sell it and buy a non turbo... lol had to throw that in there... Hope you get it figured out soon.

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The end of the internet begins here... www.broke-off.com

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Jerrome B.
1995 GSX - Race
1997 GST - Drive
1995 GST - Who the hell knows

I had the same overheating problem because I only had one fan on my radiator. The small gap created by my front mount and the radiator was causing air to escape underneath the car instead of straight to the radiator. I built a plastic shroud for the gap and bought a slimline fan and have had no problems with overheating since then. If the overheating is gradual, this will fix your problem. If the temperature is drastically changing, replace your thermostat. good luck...

1995 GST
6-bolt JDM swap
Evo 16G port/polish
28x7.5x3.5 FMIC (had to cut bumper to make it fit)
686 Injectors
Walbro 255-HP
ACT 2600 Clutch
Full 3" Turbo-Back Exhaust
RamCharge MAF Translator w/ upgrade chip
RRE Front/Rear Strut Bar
Eibach Pro-Kit
NGK Plugs/Wires
Crushed 1g BOV vented to atmosphere
Apexi SAFC
Powerslot Rotors
Autometer Phantom A/F, Boost, EGT
Redline Synthetic M.T.F.
2g Manifold ported w/ ported 02 housing
K&N Custom Cold Air Intake
Apexi Turbo Timer
Joe P MBC @ 19p.s.i.

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__________________________________________________________
-Tony <--- NOT asian.
'06 Wicked White EVO IX

i was having the same problem. my fluidyne should be here this weekend and ill let you know if it solves my problem

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Matt D.
'06 Evo IX SE
'98 RS-T 13.8 @ 106.1

Originally posted by eclipzGST

Originally posted by FlyinEsi. I'm going to take off my front bumper when I get back from San Diego this weekend, drive around like that and see if I really have an airflow problem. If I overheat with that bumper off, then I have another problem somewhere.

lol. Ya think? cough*fluidyne*cough

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What are you looking for as far as temps go? And at exactly what point do they start to rise uncontrollably?

The only other thing I can suggest is you do what I did and remove your thermostat. This will keep coolant flow constant throughout the system. Some people do believe otherwise with that theory like the coolant needs to be slowed down and stuff along those lines. Its worth a shot if nothing else and takes all of 10 minutes to try.

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Jerrome B.
1995 GSX - Race
1997 GST - Drive
1995 GST - Who the hell knows

why would you want to slow down the coolant flow? maybe we should get the engine an ice pack too....

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Originally posted by Diceman19
why would you want to slow down the coolant flow? maybe we should get the engine an ice pack too....

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Jerrome B.
1995 GSX - Race
1997 GST - Drive
1995 GST - Who the hell knows

I've been in AZ since January, and my car was starting to act up in Wyoming before I left, but I bought a truck and garaged the car for the winter.

As far as temps go, it will sit at normal going down the freeway for like 20 seconds after I first turn on the A/C and then it will climb. Check engine light comes on at 234* and I turn off the A/C immediately.

I've got the front bumper off the car and it's like 100+ right now so I'm going to see how my temps do. I can't possibly get any more air going to this bitch than I'm getting right now. Got a bad feeling though.

I'll be out to San Diego for the weekend, so I'll check for any more suggestions when I get back. Car can sit and rott in the garage all weekend for all I care.

Watch the For Sale section...it's getting real tempting now. I can afford something new, with warranty, and will work.

Edit: The car is also overheating w/o the A/C on if I'm going over like 85mph or if I'm real hard on it in 3rd/4th/or 5th.

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Seriously....pull the thermostat and see what happens with constant coolant flow through the car.

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Jerrome B.
1995 GSX - Race
1997 GST - Drive
1995 GST - Who the hell knows

The thermostat serves a few purposes. It helps the engine warup faster on initial startup and it also keeps the engine in the optimal heat range. You really dont want a cold engine. Cold engines use more fuel, get stuck in open loop which changes fuel calculations and timing strategies, causes premature parts wear and sludges oil. Also, slowing down the coolant flow allows for proper heat transfer at the optimal running temperature. Sure, if you remove it, it'll run cooler, but that's not really good. The slower flowing coolant will transfer heat more effectively at full operating temperatures. And actually, you want to raise the boiling point, not lower it. If you lowered it, the coolant would boil sooner, which causes cavitation and other bad things. Thats why you have a radiator cap that puts the system under pressure. For every PSI, you get a 2 degree raise in the boiling point.

91 awd: 60-1, 880's, E-Prom, etc.
93 awd: JDM 6 bolt, K&N, full exhaust, Wally 255, otherwise stock.

R.I.P. the original "Factory Freak"
15.5's with short ram and catback only
1996 RS 5-speed

what is the optimal operating temp? is it 190?

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2003.5 M3
99 M3
99 GST

It was a suggestion....he can do and believe what he wants.

_____________________________________________
Jerrome B.
1995 GSX - Race
1997 GST - Drive
1995 GST - Who the hell knows

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Jerrome B.
1995 GSX - Race
1997 GST - Drive
1995 GST - Who the hell knows

__________________________________________________________
-Tony <--- NOT asian.
'06 Wicked White EVO IX

hmmm....since it is happening while he is driving what difference will it make? It does mention drag racing, but it still applies normal driving and would work the same.

Anyway, his main concern is airflow and this was just an answer to the slowing the coolant down theory that so many believe in. I am not here to start a 3 page argument in semantics of the article. You can choose whether or not you think/believe this will work on a daily driver.

_____________________________________________
Jerrome B.
1995 GSX - Race
1997 GST - Drive
1995 GST - Who the hell knows

i bought a 160 degree thermostat the other day from advance.

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Matt D.
'06 Evo IX SE
'98 RS-T 13.8 @ 106.1

On a 2G the stock themostat opens a little at 180 and fully opens at 195.

What people recommend stopping the water? Thats retarded. It has to circulate to the radiator so it can be transferred to the atmosphere by way of radiation. Yeah, slow it down some, but not stop it. The two main reasons behind restricting flow is to allow for proper heat transfer and to regulate the temp. Keep it open too long, it gets too cool, keep it closed too long, it gets hot. Its a regulator.
"The best coolant and the best pressurized system will still have a boiling point below 300 degrees. Temperatures this high will mean that a steam pocket will develop and continue to grow until the heat source is removed or a large amount of coolant is brought to the area to soak up the heat and resultant steam pocket."
I agree with this. He's not saying cooler is better. He's talking about extremely high temps causing the water to boil and steam pockets developing. New non aqueous coolants like NPG have solved this, doesnt boil until around 375 degrees. On your daily driver street car, normal operating temps wont cause this condition. If this is happening, something else is wrong and needs to be looked at. I can see and understand leaving a thermostat out of drag car due to the tremendous loads and near instant heat the engine receives, but it only receives these loads for a brief period. For a daily driver I highly discourage leaving the thermostat out. In his case, it would only mask another problem, and that is no way to solve an issue. Your daily driver isnt under the kinds of pressures and stress that a drag car is, and isnt under full load all the time. A drag car runs for seconds at a time, and thats it. Constant idling and cruising with a cold engine will wear internal parts out quick as shit. One thing he said though caught my eye. Tuned race engines running 1300 degrees? That signifies an overly rich, poor tune to me. Tuned on the ragged edge drag cars run much hotter than that. Your mom's Camry putts down the freeway at around 1450 degrees. I guess she must be running on steam only.

91 awd: 60-1, 880's, E-Prom, etc.
93 awd: JDM 6 bolt, K&N, full exhaust, Wally 255, otherwise stock.

R.I.P. the original "Factory Freak"
15.5's with short ram and catback only
1996 RS 5-speed

ok, not to ninja this thread, but i was having the same type of overheating problems after my FMIC install...

the culprit of all my problems was the huge heavy ass metal bumper support. i cut the living crap out of it to get as good of flow as i could through to the radiator and my problems went away. granted i now have a fluidyne, 2 slimline fans, 160 degree thermostat and well i think thats it. i wish i took some pictures of how much i cut off that support. but its more or less just a metal bar the plastic bumper bolts to now.

my coolant temps stay right around 206-209. even with pretty hard ass driving. anyway, i was pretty frustrated by the entire thing, but it makes sense. i wish there was a way to get better airflow through to the radiator, but there really isnt, at least on a 1g car.

im very happy the car is drivable now cheers.

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Matt D.
'06 Evo IX SE
'98 RS-T 13.8 @ 106.1

Do you have a Greddy big FMIC??? I have a big ass tube running in front of my front mount...do you have the same?

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i have no idea what you are talking about with a big ass tube running in front of your IC.

______________________________
Matt D.
'06 Evo IX SE
'98 RS-T 13.8 @ 106.1

__________________________________________________________
-Tony <--- NOT asian.
'06 Wicked White EVO IX

wow.....airflow was the culprit....who would have thunk it....

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Jerrome B.
1995 GSX - Race
1997 GST - Drive
1995 GST - Who the hell knows

Originally posted by BigBald
wow.....airflow was the culprit....who would have thunk it....

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-Tony <--- NOT asian.
'06 Wicked White EVO IX

Originally posted by eclipzGST

Originally posted by BigBald wow.....airflow was the culprit....who would have thunk it....

Yup, and I'm sure he'll be able to solve the problem w/out making his car look like a block of swiss.

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Jerrome B.
1995 GSX - Race
1997 GST - Drive
1995 GST - Who the hell knows