BlkTegOn18s

iTrader: (3)

Well i installed the turbo on my b20vtec its a custom top mount setup by lovefab. Well i have an overheating problem, and since i installed it i have put in a new aluminum radiator which i had customized for fitment with the turbo setup, new 14" pull fan, turbo blanket, new upper and lower radiator hose, new lower temp thermostat, new thermostat housing. i have swapped out everything i know to change and still over heats.
i checked the coolant system for leaks.
i mean what is it thats going wrong?

boosted ej8

try wrapping your manifold?
what are your EGT's and a really easy DIY to see if it helps is propping the hood with spacers some say it works, some say its a waste but its a hell of a lot cheaper and easier then anything else you have done

TheShodan

iTrader: (14)

Make sure you don't have an AIR BUBBLE in the system. Common issue in over heating. Also make sure that your overflow bottle is filled.

It's common for that to occur.

BlkTegOn18s

iTrader: (3)

still no luck....

Pleiadi79

I agree in wrapping ur manifold and check air bubbles into circuit included heater circuit. Sometime the lower half of internal heat exch filles with air.
I suggest u to check ur water pump and replace with performance one.
U can test ur pump by at cold engine removing the hoses from radiator and start running engine. That u will see water coming out from one hose. i think if this will not happen u have problem with ur pump.

smoovy

too many variables:

-check for air bubbles
-leaks
-thermostat opening
-head gasket going???

does it overheat at idle? does it do it when at highway speeds? overheating is a sign that there is something that isn't right. Air flow deficiency would surface when on the gas....i.e highway speeds. is this a airflow problem? water in oil? oil in water? you've made all the previsions to keep heat down but there is something else going on with your setup. these questions will help us help you!!!! so please be thorough and specific when telling someone your issue

BlkTegOn18s

iTrader: (3)

air bubbles none the bleeders has smooth coolant flow coming out of it..
no leaks any where i have put 15psi on the tester and not a in/lb has come out..
headgasket is new not even 50miles on it...
both thermostats i have tried work properly on and off (boiling pot on stove) the car..
no oil in water or water in oil...

has anyone ever had build up inside their coolant passages before? this is my only guess something could have clogged it maybe.... i have thought about short quick burst with a pressure washer into the motor with all the lines off. Or does anyone know of a drain-O type solution for a vehicle that might work for me?

smoovy

one thing you can do is remove your thermostat and replace the hosing without the thermostat, and take your upper radiator hose off and get a water hose. stuff the water hose in where the upper hose would attach to and start the car, pushing fresh water through the system.

also you never told us if this happens at idle or when you get on it highway speeds or what? I would let it idle in the driveway and see if it overheats or starts to.

Frost7177

this may sound stupid but does the fan come on?

boosted ej8

are you running a block guard?
idk why I forgot to ask that

rclark

happened on my friends supercharged civic like this and it ended up being a pinhole in the radiator. it wouldn't leak persay, but the car would certainly overheat even just sitting idling.

BlkTegOn18s

iTrader: (3)

Ok i have tried the running the water hose through with no thermostat... it just runs the fresh water through no progress with that...

The car will run hot at an idle after about an hour.. it will run hot driving in less than a quarter mile!!

The fan does work properly i have even bridged the sensor for constant spinning..

i do not have a block guard...

The radiator does not have a leak i have a coolant system pressure tester and i have put 15-16psi on the system and not a leak...

anything else someone can suggest i really appreciate the help guys keep the info coming to me!
maybe someone can find me a picture of a ls integra coolant system a stock civic coolant system and a gsr coolant system and i can compare and contrast some more things on my own!

BlkTegOn18s

iTrader: (3)

^^^^^^^^^^^^^^

dpetro1

how do you know the car is overheating? are you datalogging temps?

matt94z

Good point ^ maybe your sensor or gauge is beat.

Also make sure your rad is flowing, if its used the fins inside could be all corroded.

Pleiadi79

pray for yourself

Pleiadi79

maybe stupid, bur did u checked watern pump working good at every rpm?
try to replace raiator with alum one...

i have no more ideas...Are u sure nothing into water block passages that obstrut flow?

BlkTegOn18s

iTrader: (3)

i have an aftermarket gauge and the oem gauge both work...
my radiator is new and it is aluminum..
the only thing i can think of is some kind of obstruction but where.. i have run water through every passage and they flow good.
any more help??

smoovy

I know this may sound bad, but there are other issues that could arrise:

- hairline crack inside head( have it pressure tested off the block)
- wrong dowel pins between head and block
- Your head might need resurfacing
- bad radiator cap( SO OVERLOOKED!!!)

with all this going on, you have got to be losing coolant. you don't see any drips of puddles after the car has set for hours? this doesn't make sense if it isn't.

you either have a pin hole somewhere, evaporating in such a way that you can't see any drips or puddles like maybe the combustion chamber is pressurizing it under boost?

I almost want to say it's your headgasket, but overlook everything, and when you start your car, leave the radiator cap OFF. leave it idle filling it up with coolant everytime it goes down until the thermostat opens, you'll see water flowing inside the radiator at that point. then replace the cap and drive it and see.

Spody02

iTrader: (1)

i would do a leak down test

4drEF

Is your cam timing right?
Having it off a tooth might run right, but may cause overheating.

Pleiadi79

the only thing i 'm thinking is some micro leak on sleeves...ANY White smoke from exhaust? Air bubbles coming out fro water into radiator?

BlkTegOn18s

iTrader: (3)

no white smoke at all from exhaust the head was completely redone by a machine shop before being installed! the only thing coming from the radiator is hot *** water when it gets hot it slowly runs out the top.
i have also replaced the rad cap but still no luck there!
so i still dont know what to do im thinkin about pullin the head off again but damn man all that shi has to be re done and it just seems like something can be done to fix this problem without all that taking place!

turbo97coupe

didnt read the whole thread but have you tryed driving it with the thermostat pulled out ? also have you tested the water pump by pulling the radiator hose off the radiator with the engine running and seeing if coolant is being pumper threw the hose , also this one hopfully somone else might be able to chime in and help answer but is it possiable for super high EGT's to cause a car to over heat ?

wrx-killer-Sti-eater

iTrader: (1)

hell are both rad hoses hot? I seen this before were a customer bought a autozone thermostate and it would open on the stove but not in the car. Replaced it with a oem one and the overheating went away. I would try it with out the thermostate and see if the problem goes away.