Just wondering if any of you guys have an idea of what to do. I am running out of ideas, and the car is running at hot temps, like 210 degrees.

I just replaced my fan with a large, very strong 12in fan, and I have a dual core small size radiator made of copper I believe. Of course the coolant is fresh, and i am running maybe a 70-30% mix. The thermostat is new as well, a failsafe 170 degree.

I know the biggest problem is direct air access to the radiator.....I had to tilt the rad a little for it to fit without touching the battery and the downpipe/dump tubes. Also, the intercooler takes up most of the front grille, or where it would have been if i did not cut it all out.

I had two ideas....maybe i would use some heat wrap around the dump and the downpipe? But it is still very close to the radiator, so I dunno if that would make the difference.

The last idea would be to cut maybe 4-5 2in diameter holes out of the header panel right in front of the radiator, to try to get some ram air effect straight to the radiator, and I dont think it would look too bad, if I did it right.

Any other ideas guys? I havent even boosted strong yet, since I am building the motor, and havent revved past 4-5k, so if it is overheating now, I know ill be in trouble when it is race time. Let me know if you guys have any ideas, thanks in advance.


A pic of how the whole grille is taken up, taking away airflow to the radiator


See how close everything is?

This is what i was talking about....it would give the radiator some breathing room, and wouldnt look tooo bad <_< lol

 

i think that would definently help out...it's very tight in there

sidenote: any more pics of the setup?

 

wow thats cramped. id maybe a huge baffle to direct all the air from the front of the car through the radiator. U will find that position it like that will create low pressure zones either side of the radiator and cause air to bypass it. This is what i did.. rough but works.

 

Ah, I never thought of a baffle.....i do have more pics of the setup, what do you want to see?

 

Weq has the right answer. Build a shroud so air HAS to go through the radiator and not around it.

 

Would that keep air from cooling off the turbo and everything as well? Of course it is going to get hot no matter what, but the little air that would be getting to it, would be completely blocked off if i did the baffle

It looks inexpensive to do...ill definetly keep it in mind

 

i agree with building a shroud, to help direct the airflow.

you can also try the washer trick. put some washer under the hood hinge, to jack up the rear part of the hood to reduce underhood temps.


have you gotten all the air bubble out of the coolant system? its a possibility, and that could be causing the headache.

also, keep in mind that oem honda ecu's will turn your fan on around 210 degree's, maybe try a low temp fan switch (i belive spoon or mugen make them, not sure though) this will turn the fan on sooner.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dturbocivic &raquo;</TD></TR><TR><TD CLASS="quote">i agree with building a shroud, to help direct the airflow.

you can also try the washer trick. put some washer under the hood hinge, to jack up the rear part of the hood to reduce underhood temps.


have you gotten all the air bubble out of the coolant system? its a possibility, and that could be causing the headache.

also, keep in mind that oem honda ecu's will turn your fan on around 210 degree's, maybe try a low temp fan switch (i belive spoon or mugen make them, not sure though) this will turn the fan on sooner.</TD></TR></TABLE>

I do not think there is any air in the system...also, I am not using a honda ecu anymore....SDS fuel management

Im going to give some of these ideas a try when i get back in about a week. Keep the ideas up guys, I appreciate the advice

 

Im having the same problem as you my friend.

In a crx, my radiator is also tilted, im running the same fan, my rad is alum dual core have size.. On a tilt like you, I built duct work ontop, bottom and sides of the radiator to help create pressure on the radiator.

It helps a bit but not enough... I am running temps around 200-205 if im easy on it and its not too hot out.. when it gets very warm im up around 210-215.. These temps are with my heat on full blast.. Rad fan is also on all the time.

I used a mixture of 70/30 and added some wetter water to my radiator.. No bubbles, and thermostat is 170deg.

My hood is jacked up a tad, but im considering doing it more.. maybe a couple inches, im out of ideas, just trying to get it to run normally without the heat on.

I like the idea of the large baffle, I may try something similar.. The baffle will help direct air, and the cowl induction hood will help keep underhood temps down..

Im out of ideas with my setup.. Running hot is my #1 problem thus far.

 

Yeah, sounds just like my problem..im going to try to drive it today without the header panel on, and see if that is the problem.....air getting to the rad. If that is, then drilling here we come.

Otherwise ill try the baffle and the oem thermo, but this should be the easiest fix, since i only have 3 bolts holding it on

 

why not get a aftermarket thick radiator? instead of cutting holes to your hood

 

get a koyo radiator spoon thermostat and fan switch for safe measures. btw did you run it yet? i would like to see it go down the track, let me know when you will be out there so i dont miss it. relocate the battery to the back..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 1Quikgsr &raquo;</TD></TR><TR><TD CLASS="quote">get a koyo radiator spoon thermostat and fan switch for safe measures. btw did you run it yet? i would like to see it go down the track, let me know when you will be out there so i dont miss it. relocate the battery to the back.. </TD></TR></TABLE>

if there is no/very little air flow through the radiator or he has air in the system, a koyo or spoon thermo/fan switch will do very little to help.

i would go with building the shroud *covering where the A/C condensor would go* to direct the airflow.


Modified by ramrod at 4:08 PM 6/29/2006

 

In &gt; High pressure - Out &gt; = Low pressure = Flow.


High pressure =Front air dam and tip of hood where emblem is suppose to be. ( where your intercooler is)

Low pressure(air exit) = top closest to front of hood or Rear of fender.

Make something to route air ... what do they call those? A DUCT.

 

I drove it around today w/o the header panel on...no overheating. Seems like the only problem is the air getting to the radiator, so an even larger radiator, would probably not fit, but would still have the same problem.

I think i will have to do both....the air ducts and the holes..the air ducts will help, but the intercooler steals most of the little air that gets by anyways..i think i need even more airflow, via the ducts and the holes

Now I have to figure out a way to not make the header panel holes look ghetto

 

https://honda-tech.com/zerothread?id=1674762

 

Thanks for the link. I cut the holes in the header panel, doesnt look too bad....for cutting holes into the header panel

I just picked up a 00 si 160 degree thermostat, it was only 10 bucks here with the employee discount, so I figured why not.

Hopefully that solves my problems!

 

The thermostat and the holes keep the car at a reasonable temp of about 180-190 degrees while i am driving...but i still get warm when i sit still for a long period of time, with the fan on all the time and topped off coolant level. It usually raises to a temp of about 200-205 degrees....but so far it has not raised passed that point...is that unreasonable for a turbo car?

I think the last thing to do is the downpipe wrap and possibly the turbo wrap. I dont have a problem of it getting warm anymore while I am driving, so i dont think the baffle is needed to get more air to the radiator. If i wrap everything, I think that will bring the car down that 10 degrees that i am looking for hopefully

Any other suggestions or comments?

 

welocme to the turbo b16 1st gen crx club, theres only a handfull of us in the country


i would wrap your downpipe in heat wrap man, that **** is REAL close to your radiator

i run a single core half size HF radiator on my crx which basically has the same setup as you and i have yet to overheat, but my downpipe is on the opposite side of yours

 

Ah cool...I think that is my last idea, so i hope it isnt hard to do.

 

its very easy, id grab the wrap from summit racing

id do the dp and dumptube since theyre both making sweet love to that radiator

 

Do not wrap your header it traps moisture and will ruin the manifold.

 

I think ill wrap the down and dump...i like the idea of that black wrap, but ill definetly do it either way. Thanks for the water first trick...

The fan is on a switch and i have it run at all times...it is an SDS fuel managment system

 

Can runs w/o overheating...just need to pick up that wrap asap to keep everything perfect.