I eas wondering if any of you can help me figure this out. I was wondering if I have a blown headhgasket. I have a 00 Si boosting 7 psi, no oil in radiator, fans kick on, resevoir tank is always in the same level (never overflows), no oil in the radiator. Only time it starts overheating is when it gets 90 plus degrees outside. On a decently warm day, I can turn on the AC, no overheating whatsoever. It seems to just like to overheat in the summer. Just recently changed the coolant and the thermostat. Any ideas?

 

Do you have a water temp gauge? What does it read?

Unless you live somewhere where you get freezing temps you don't need to run antifreeze. Distilled water with some water wetter is the way to go

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Haberdasher &raquo;</TD></TR><TR><TD CLASS="quote">Do you have a water temp gauge? What does it read?

Unless you live somewhere where you get freezing temps you don't need to run antifreeze. Distilled water with some water wetter is the way to go </TD></TR></TABLE>

yes you do. antifreeze isn't just a non freezing agent. it also lowers the boiling point of the water and provides corrosion protection against rust that straight water causes. a 50% mix of water/antifreeze is best and then add a little water wetter.

 

In my turbo setup mentioned above in the 1st post, I'm using 50-50 water/antifreeze.

 

forgot to mention, no water temp gauge. My stock gauge usually when the car gets hot only goes up 3/4 of the way. Need more input please.

 

bump

 

i would change the radiatior put in a bigger one cuz there is alot of heat build up under that hood now. or u can try this stuff called 40 below. it helps the engine run cooler. i found it at a performance shop. they use it for muscle cars it worked so try giving it a shot. but for my 99 ex i put in a fluidyne in mines and it dnt over heat nomore. honda sells premixxed antifreeze 50/50

 

thnaks, I was thinking it might be the radiator not being sufficient enough. Anyone else?

 

you said you just replaced thermostat and fluid, might you have bubbles in you lines because you didn't bleed enough? Air pockets will cause the fluid not to flow through the system.

 

i had the same problems until i switch over to a dual core one

 

i had some overheating problems a few weeks ago and took it to a radiator shop and he showed me that my radiator was falling apart. Take a look at yours and see if you fins are falling out or if your radiator is all green, if so, my might need a new one.

 

I just find it strange and a waste having to yank out the old radiator with no leaks. It worked fine all motor, and I barely boost driving daily. What about adding a pusher fan in fronmt of the radiator to get more air through? What do you think about that idea?

 

change the radiator. put a bigger one in u cant go wrong wit it. it will work much better than the stock one.