Re: Drilling thermostat
 

I dont actually run one on my car. All my cooling problems are gone after switching to E-85 and installing Brandons old radiator.

Might be a long shot but are your fans blowing in the right direction? If they were blowing the wrong way they would still work fine at idle and slow cruse. But at high speed the fans and the incoming air flow would cancel each other out.

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.

Re: Drilling thermostat
 

http://www.dsmtuners.com/classifieds...ct=61726&cat=7

get that hood?

-A. Swift

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.

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.

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.

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.

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.

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.

Re: Drilling thermostat
 

Make sure you don't have combustion leak into coolant passage. you might have a small leak.

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 :(

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.

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

Re: Drilling thermostat
 

Can you read the temp of the ECU for comparison?

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!

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.

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...

Re: Drilling thermostat
 

A bad sensor could do it. What radiator do you have and how old?

Re: Drilling thermostat
 

It also could be that radiator you bought, isnt it just a knock off aluminum?

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.

Re: Drilling thermostat
 

The car seems fine at lower speeds, and worse at higher speeds. Just letting the car idle or sitting at stop lights lowers the temp.

As for the radiator, it did this on my old radiator, and this whole thing is the reason I bought the new radiator. Here is the one I have.
http://mishimoto.com/product_info.php?prod=mmrad-ecl-90 It's a couple months old.

I'll look into getting a new temp sensor asap. I'm going to update my first post as well to show everything I've done thus far so you don't have to siphon through a bunch of pages of crap.

Also, I have the thermostat currently completely removed.

Re: Drilling thermostat
 

That might be your whole problem right there. Unregulated water flow can cause overheating at higher rpms. No time for it to cool down in the radiator.

Re: Drilling thermostat
 

It still does this, no matter if it's in there or not. I just took it out to give it a shot, and it still acted the same. Also, I guess I'm not sure what you mean by higher RPM's, but cruising on the freeway at 3500 rpm's is when this is the worst, and I wouldn't consider that high. I currently have 2 holes drilled in it. Maybe I'll just drill one more before I put it back in.

Re: Drilling thermostat
 

I meant off idle when the flow is higher.

Re: Drilling thermostat
 

This means it is not a normal cooling problem. If you just had a lack of cooling, then it would get hot around town. Do you have an EGT guage? This is one of the times that one may come in handy. Is it possible that the DSMlink timing isn't set the same as the engine? Running too much timing will raise the temp, as will running too lean.

Re: Drilling thermostat
 

this might be dumb but are the fans going the right way. craig had the problem of overheating down the road and the fan blades were not on the right way to push air from the front.

Re: Drilling thermostat
 

Yea Im with Jet, that is not a normal overheating problem, sounds like maybe its either the sensor or its too lean at part throttle higher rpms?

Re: Drilling thermostat
 

I completely agree that it's not normal. Every cooling problem that I've ever had was around town, and it got better on the freeways with more air flow. This is also exactly why I put a vent in the hood despite others telling me "no, fix the real problem". Like I mentioned above, cooling temps are directly proportional to my EGT temps, and so my goal was to get a vent to give that hot air building up right there a way out.. As my EGT's go higher, my coolant temps go higher. Cruising on the freeway, my EGT's average around 675C. I have no clue if that is normal or not. I'll have to look again, but cruising on the freeway I'm usually pretty close to stoich, right at about 15.0. As for the timing, I'll have to research, but I do run a bit of timing now with Link since I've been adjusting my E85 tune. But this problem has been going on before I ever touched the timing. I am going to go read up a little, but does my timing adjustments on DSMLink, are those implemented always, or only under WOT? Also, this is all on E85, which should actually have my engine running cooler. Very odd. I'm going to replace the sensor and go from there.