s13 sr20det overheating on hot days???

[nismo_power]

okay so is this normal for my car to be overheating on 95 to 100+ degree weather???

i have a sr with nismo thermo, mishimoto rad with dual 12in fans, front mount intercooler for the cooling system...the fans are wired to come on as soon as i turn the car on...

the car idels and drives fine...on cool days i can drive it as long and far as i want with no issue of it over heating, but when it is hot out if i dont turn the heater on blast then after like 30-40mins of driving it will start to slowly over then i turn on the heat on full blast then the temp will go right back to normal but if i turn it off after that then will still do the same thing???what is going on with my car???does it need more cooling like oil cooler???

the car is still running stock turbo manifold and turbo...the motor is all stock...need help cause i need to drive my car in this hot weather...thank in advance....

[motorboater]

curious as well cause mine does the same thing. not trying to thread jack but what setups do you guys have in texas or hotplaced areas

[FRSport]

Have you checked the water pump? It may not be functioning at full potential. Also you might want to look into purchasing a fan controller that may help you fix the problem.

[nismo_power]

how will a fan controller help it???does it just controll when the fan comes on....my fans are on all the time, isnt that good enough???ill buy a new water pump and hopfully that helps...anyone got any other ideas???

also if it was the water pump then wouldnt it still over heat on cold days, after like an 1.5 hr+ of driving???

[motorboater]

i just put a new waterpump in last week. didnt change anything for me

[slidestyle69]

you could have a air pocket.

Let it idle as long as u can with the radiator cap off and the heater wide open and let the air pocket run out.

Are your fans turning the correct way?

and also your motor could had been overheated badly once before.

but you have all the regular cooling components that is recommended.

[nismo_power]

i am pretty sure there no air pockets...but it only over heats on really hot days???

which way are the fans suppose to be turning???
Modified by nismo_power at 9:10 PM 7/27/2009

[duffman1278]

I believe if they're inside the engine bay, the fans should "PUSH" air onto the radiator.

[motorboater]

if there inside the engine bay they should pull. if there in the front they should push

[FRSport]

if the fans are inside they are puller. If they are from the outside they are pushers. If i may ask what kind of fans are you running 2 12" or 1 14" fans. Also i was wondering what kind of cfm does the fan flow?

[motorboater]

i have 2 10. and they are those permacool ones from oreillys for me

[nismo_power]

i got two 12in fans from mishimoto...they are in side the engine bay and they are pulling...cause when i put my hand in front of them i can feel the air blowing...i dont know know the cfm they are though....

[Sil80315]

What coolant are you using? If its to much water it will over heat like you say. Try flushing out the motor and use 50/50 and grab a bottle of water wetter

[nismo_power]

what is the best way i can fully flush the entire engine out???

[Sil80315]

you actually can buy an adapter from an autostore that you can hook up to your radiator hose to your garden hose and just turn on the water

[Sil80315]

[nismo_power]

so all i need is one 12oz bottle of water wetter then just add it to the system and it should help right???or do i need more then 12oz???

[Sil80315]

yup only need one bottle

[homeslicej2]

Question? do you have a gap b/t your FMIC and the radiator support? I had overheating issues too, as soon as I put a piece of aluminum inbetween the IC and rad support, the overheating issues went away. The air that was coming out of the IC was slipping below the radiator instead of going into it. The sheet of alum prevented this and forced the air to continue on into the rad. Here's a view from the top looking down.

Here's one from under the front bumper cover to the rad support.The angle alum is supposed to help create an area of low-pressure to faciliate the airflow through the lower part of the rad. Cost me about $30 for the material. I took the car out (stock boost on the SR) put it in 4th gear and drove 70-75mph (4k+rpm) for 20 minutes and it never ran hot (low 90's that day). oh yeah, I already had a Koyo rad, new thermo (stock not NISMO), dual elec. fans, new water pump, and a bottle of water wetter. Did that stuff done at time of swap.

[motorboater]

like that setup looks nice

[Sil80315]

Very nice mod

[nismo_power]

hey you want to make me one ill pay you 60 bucks...i need it for a s14 zenki....lmk if you want to make me [email protected]

[homeslicej2]

I would love to make some extra money, but trust me, it's not hard to make. I don't have access to an S14 either, so unfortunately I would not be able to cut it correctly and would send you something that might not work. Thanks for the offer though. All you need is a large piece of cardboard (to make your template), a 24" x 36" piece of sheet alum from Home Depot/Lowes/etc (this size is large enough that I can make two panels for the S13), a 4 foot long piece of 1 1/2" angle alum (this was the shortest length of 1 1/2" I could find), some bolts to mount the sheet to the rad support, a drill and bit, some tin snips, and a hacksaw (or whatever to cut the angle alum). Took me about 45 minutes to make mine. Get under the car, cut your cardboard to approx. size, press on it to find the T/C rod brackets and the pre-existing bolt holes, and cut it out, then transfer to the alum. Your bolt holes might be a bit off, but that's why you get a piece of alum big enough to make two When I cut mine, I slid the cardboard and alum under the FMIC till it touched the bumper cover, then cut out the bolt holes and bracket spaces. So the sheet goes from the bumper cover to the rad support.

Very nice mod

like that setup looks nice

Thanks

[AndrewMinervini]

i know this is a little late but ill make you one, also i just re did my heater hoses so there not behind the motor at all, try that, cut the steel hose that turns behind the head under the intake manifold and just run a hose straight into the heater core and tee off for turbo water

[motorboater]

do you have any pics

[shift_SRDETuser]

Question? do you have a gap b/t your FMIC and the radiator support? I had overheating issues too, as soon as I put a piece of aluminum inbetween the IC and rad support, the overheating issues went away. The air that was coming out of the IC was slipping below the radiator instead of going into it. The sheet of alum prevented this and forced the air to continue on into the rad. Here's a view from the top looking down.

Here's one from under the front bumper cover to the rad support.The angle alum is supposed to help create an area of low-pressure to faciliate the airflow through the lower part of the rad. Cost me about $30 for the material. I took the car out (stock boost on the SR) put it in 4th gear and drove 70-75mph (4k+rpm) for 20 minutes and it never ran hot (low 90's that day). oh yeah, I already had a Koyo rad, new thermo (stock not NISMO), dual elec. fans, new water pump, and a bottle of water wetter. Did that stuff done at time of swap.

this looks like something I want to do. My car does not over heat just runs hotter than I want it too was looking for a solution this may be it. I would cut my hands to bit doing this though. Do you know if any autopart stores sell this sheetmetal or a plastic piece?

[AndrewMinervini]

ill take some pics tomorrow and if anyone wants this piece to install ill do it for 60 as well...shipped

[shift_SRDETuser]

It does not use the subframe bolts to mate up to does it? Looks it should just bolt in.

[AndrewMinervini]

mine doesnt