I run a 91 Integra on an oval dirt track and am having alot of trouble with it overheating and there area couple of other guys that have the same trouble.???

 

Have you tried an oversized radiator and water wetter?

 

Have you upgraded your OEM radiator to a larger unit? Also what kind of screen have you got in front for protection of rocks and dirt buildup?

 

you could pull out the thermostat & put in a restrictor plate, oversized rad & water wetter as previuosly suggested and higher pressure rad cap

 

you could cut a big hole in the hood

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boostedh23 &raquo;</TD></TR><TR><TD CLASS="quote">you could pull out the thermostat & put in a restrictor plate, </TD></TR></TABLE>


NO DON"T DO THAT!! wrong information!!!

so how big of hole does he need&gt;? you do realize that is all a thermostat is, is a restrictor plate??/

 

I havent tried watter wetter diden't think it worked from what i have heard i am thinkin about getting a rad from a 94 integra with AC its a double core. Any other similar rad that will work? I have also cut the center out of the themostat same issue fan hooked up to run constant, i have expanded metal in front to keep dirt and rocks from hittin the rad.

 

all 91 integras had dual core rads, ifs its a sotck 91 rad from 1991 it might be time to replace. it might have deposits built up inside, you gan get aluminum ones off ebay for under $200

 

I have had problems with several race cars overheating. My cure has been to fabricate ducting that guides the air into the radiator, and does not let it travel around and above the radiator.

I cannot stress how effective of a cure this was. So much of the air entering the front of the car is allowed to flow around the radiator in stock form that it not only by-passes the radiator,,, it also creates high pressure behind the radiator,,therby reducing flow even more. Even when I went to a large aftermarket radiator, the cooling gaines were modest when compaired to proper ducting.

An additional gain is downforce created since you are limiting the amount of air flooding the engine bay. The air that enters is used much more efficiently.

I did this mod on my CRX, and just completed it on my H2 civic ( 2 months ago ). I ran the car at Buttonwillow in near 107 degree weather. The car never ran over 190 degrees .

I will try to post some pics of the civic set up. On the CRX it was just some carefully made aluminum ducting. For the civic I made a mold and pulled a fiberglass part off of it.

JT

 

in for the pics, looking at doing this to my civic

 

I don't think 91's all had dual cores i have only seen singles i have scrapped 5 or 6 of em and none had a dual and pars stores only list singles.

 

Anyone ever use the ford tarus sho fan it is said to push around 5000 cfm

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by crx-si &raquo;</TD></TR><TR><TD CLASS="quote">Anyone ever use the ford tarus sho fan it is said to push around 5000 cfm</TD></TR></TABLE>

If you're moving faster than 50 MPH, I don't think a different fan will help much.

Have you tried a new T-stat?

Have you done a leakdown test (i.e. headgasket)?

There's a number of bigger radiators out there, look on Ebay.

-Chris

 

Was useing a fully rebuilt engine untill that went and are now useing an engine from a donor car and having the same troubles so i doubt its anything to do with the thermostat or the head gasket.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JuanTushag &raquo;</TD></TR><TR><TD CLASS="quote"> My cure has been to fabricate ducting that guides the air into the radiator, and does not let it travel around and above the radiator.
</TD></TR></TABLE>



<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Chris F &raquo;</TD></TR><TR><TD CLASS="quote">

If you're moving faster than 50 MPH, I don't think a different fan will help much.

-Chris</TD></TR></TABLE>

 

I think i am goin with dual fans up front and fabbing up a cowl hood with a sho fan mounted in it to pull the heat out from the engine bay, as well as a double core rad along with channeling all air into the rad.
Think this will work.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by crx-si &raquo;</TD></TR><TR><TD CLASS="quote">I think i am goin with dual fans up front and fabbing up a cowl hood with a sho fan mounted in it to pull the heat out from the engine bay, as well as a double core rad along with channeling all air into the rad.
Think this will work. </TD></TR></TABLE>

It really ought to work. Most B-series motors just aren't overheating on higher speed tracks (higher speed than a dirt track) so some more air should help!

What gear are you using on the oval, 3rd? I have no idea how fast these are.

[edit, damn, you're in Canada and overheating? You're doing something wrong. Maybe Canadian Integras got half-rads or something?]

 

Well we are running in about 90 degrees in second gear constantly between 5 and 7 thousand rpm's rarely 3rd for up to 15 minutes. And yes we have the full rads to LOL

 

Ah ha. That'll do it. Try driving twice as fast

 

And the front is constantly pulgging up with mud.

 

sorry i have not posted pics of my ducting yet. i am on the road and will be back in town sat night

 

Im running a fill sized radiator Fluidyne. But i dont have any ducting around the radiator. And i run no fans the water is always cool. But if i draft someone for 1 lap it goes up.


Edo

 

how would you know , your never behind anyone!!!

 

Lapping traffic. U know what i mean.


Edo

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JuanTushag &raquo;</TD></TR><TR><TD CLASS="quote">how would you know , your never behind anyone!!! </TD></TR></TABLE>

 

Raced today with the new settup no dual core rad tho, cowl hood with the fan pulling the air from the engine bay as well as two fans pulling air in through the front of the car worked great won all three races.