KevinEF7

Hey guys, cant find any tech info on this. I had my turbo single cam on the highway for the very first time today and I had a slight overheating problem. Temps went about 20* over where they normally are daily driving

Turning the heat on made it go back to normal, but I dont always want to do this. I am definetely adding water wetter to my system after a flush this weekend, Ive had it on the shelf a while just didnt think I needed it for this setup.

I would also like to make a block off plate for the area beside the half rad, ive read in threads that blocking off this pathway for air forces more air through the radiator. Would I see a substantial gain in cooling effect?

I kind of liked that my turbo was getting a direct constant blast of air, but I really dont want to overheat.

Any pros or cons or tech to doing the block off plate?

jdmh22eg2

I do notthink from a tech stand point you would gain much in way of cooling, i would try and fig out why you are overheating enough to turn on the heat. I wouldthink you have lost some coolant/water.

grumblemarc

iTrader: (4)

Just use the stock fan with shroud or an aftermarket fan with a shroud. And in case you missed it, use a shroud. That's what makes the difference. I've never had to run any block off plate.

KevinEF7

And youre intercooler also blocks the entire grill and are running a dual core half sized?

Should the fan even be running on the highway though cruising flat ground for 30 minutes? Thats what makes me think the intercooler is blocking all the air possibly. Which makes me want to force whatever air that is getting through the intercooler, to the radiator.

Im going to get back in the highway tomorrow and change nothing first, and log my ect's. Since my watergauge is probed at the head outlet, Im curious what temp the ECU is actually reading

Gunmetal_B20_Hatch

iTrader: (9)

Due to the intercooler blocking the front grill, yes. Most turbo Honda's have the cooling fan running almost all of the time even on the highway.

KevinEF7

As much as I hate to cramp my bay even more I think I will make a shroud for the fan this weekend, since my downpipe is going to make that difficult Im probably going to make it of fiberglass

Im really curious if I should fab a block off plate for the open side though or if Im wasting my time

wtf_is_jdm

If I am not mistaken, the cars in nascar/nationwide/etc have shrouds/air dams in between the radiator and the front bumper. It is said to increase the cooling ability because of the increase in air pressure. And on the plus side even though it might not matter to you, using this method can increase down force without increasing drag. I was just thinking about this the other day and was debating on what material to make the shroud out of..... More than likely thin sheet metal

Charlie Moua

iTrader: (3)

IF your FMIC is dense like garrett, pte, ets cores and or is more than 3", you would be reducing airflow to the half size radiator.




after air passes the FMIC it will find the path of least resistance.
I would try making a simple diversion plate. sheets of alum should be pretty cheap $20-30 max. As air passes through the FMIC it has no where else to go but through the radiator. In addition when you have your PULLER fan it will prevent hot air in the bay being recirculated back through the fan.


Use plywood or cardboard.
If you can
- make one for both sides of radiator
- the greater width plate the better.... all the way to the FMIC core if possible
- try to contour the top/bottom of plates to the front

DraginX

Since you said you turned the heat on and it made the heating issue go back down to normal it sounds to me like you might still have some air in the system. Try jacking up the car in the front end, turn your heater on full hot and re bleed the coolant system. I've always ran half rads, with huge intercoolers that completely block the front end and only time I have issues like you are stating is when there was air in the system.

civickiller

i think somethings are just running inefficient in your cooling system, when was the last time you changed w-pump, t-stat, radiator?

FlewByU352

Shroud makes a big difference but so does running less coolant and more water. I'm using roughly 25% Honda coolant and 75% distilled water and even without a fan, sitting in traffic when it was 92 degrees out, the highest temperature I saw was 201 degrees. Stock fan switch activates at 199.4 degrees fahrenheit so 201 wasn't much of a threat. The second I had a gap to lay into it to 60-70MPH the temperature dropped to 185 degrees.

KevinEF7

New oem pump, t-stat, coolant about 5,000 ago. New all aluminum rad about 15,000 ago.





I made a fan shroud today, sealed very well with foam gasket, also used a bottle of water wetter and approx 20/80 coolant/water mix. Its already cooled down today so I'll do a highway comparison tomorrow in the mid-day heat.

Hopefully its enough to keep temps down cruising @ 70

KevinEF7

Worked like a charm, still want to make a block off plate/heat shield for the turbo side of the radiator though to force air through the radiator and also some sort of protection from the heat of the turbo.

Im gonna do that this weekend now that I think about it, cool project

KevinEF7

Before


After



Dont need one for the other side of the rad, its squeezed tight to the body so I just put a strip of adhesive weather strip there to help

for efficiency

Runnerdown

Nice work, that type of shrouding becomes especially important when large intercoolers block the radiators flow path. Guiding the air through the core like that makes a very big difference in higher speed cruising temps.

Honda along with with many other oem's use rubber, foam and plastic shrouding on the cars from the factory in these places for good reason.

KevinEF7

Thank you, appears to have dropped temps 13-14* cruising the highway along with the fan shroud

grumblemarc

iTrader: (4)

The shroud is the key.

KevinEF7

I still think I can do better aswell with a quality fan, this ebay piece isnt the greatest, but on stock wiring Im not really complaining

fcm

Better fan, yes, block off plate in front of turbo no, Re: namesake, "block off" plate.

Blocking off the drivers side half of rad support, [like stock] will not increase airflow through your rad, it will stop that cooling air and it'd benifits, from getting to your turbo and manifold.94

Turbo-LS

iTrader: (4)

Natural airflow is key when trying to keep the engine cool. With the large open space next to the radiator the air will want to flow that way more be wise it's the path of least resistance. The fan should only need to run when the car is sitting still or moving slowly and not getting proper airflow. Running your fan constantly is a bandaid IMO. My car in Texas heat with half for radiator as long as keep moving would stay 189-195 no fans on

Blocking off he drivers side will help. Speaking g from experience with my buddies da integra. We blocked off that side and it dropped 5 degrees overall

DetsoobChod

iTrader: (1)

E85 ftw. Have you considered heat wrapping the Dp and as much of the manifold as possible?

KevinEF7

The DP is wrapped for about 2 feet beside the rad and under the pan. I couldnt nicely wrap the manifold without taking it off the car, still debating on buying a exhaust housing blanket

TomCurllyFry

where did you get that fan Shroud?

KevinEF7

Made it, $10 piece of 18 gauge steel from HD, metal blade on jigsaw to cut the fan hole, a few hours waiting for paint to dry.

Goautoworks sells a nice one for the half radfor a real good price, but I would have needed to modify it for my app so I just made my own.

mechanix619

I purchased the OEM condenser blocking plate and used that as my template.

http://www.hondapartssales.com/lisle...3SR301_B51.png

I'm not sure how much it helps the radiator versus not allowing the air flow to cool the turbo but it was a fun project.