Does anyone who is running a half wide radiator block off the remaining half of the core support to increase air moving through the radiator? I believe there is a part for this on the EG that came from the factory with no A/C, I recently removed the A/C from my 00 Hatch and believe that blocking the condenser side may improve cooling efficiency.

I am thus far not having a cooling issue, have not really driven car since removal. Considering upgrading to a full size radiator in the future, any thoughts? Car is street driven and auto crossed mostly, B20 engine with del sol dual core radiator.

 

Dual core radiator comes from a B16 powered De La Sol.
That should be sufficient in itself.
I dont think you would have any cooling issues with that.
In the event you do, you might want to think of a bigger radiator like an after market one for an integra.
With that you have to relocate the mounts, create a second one for the top , just for starters.
Koyo,Mishimoto are two that i can think of off the top of my head.
There are others out there....weigh your options and buget when choosing.

 

Do you understand my point? With no A/C condenser the air will take the path of least resistance and not flow through the radiator so much.

 

yes but you are going to use a fan correct?
So there shouldnt be any problems. You can run dual fans as well.
Where are you seeing an issue?

 

before we switched to a full width radiator in one of the race cars we ran the 1/2 width. On hotter days the car always had cooling issues. Installed the block off plate you are talking about and it was better but temps still got up there. Se we installed a full width radiator.

From the factory you should be able to find the block of plate for the 92-95 civic VX/CX

 

Cannot find any such bock off for the 96-00 civic's

 

Are you using any shroud on the fan?

 

I know that the part you're talking about exists for EGs, but I don't think it does for EKs. It is seriously a glorified sheet of ABS plastic with molded holes for bolts/zipties, so I'm sure you could make something with either sheetmetal or plastic from Home Depot. Half-width should be fine for what you're doing, but you'll probably want to step it up in size if you take the car on track.

 

I run an EG with the small radiator with decent size oil cooler where the old A/C unit was. No problems so far down here in the Sunshine state.

 

I may fabricate something to fit the space for now.

 

Lowes motorsports or home depot performance has what you need

 

All the fabrication stuff needed to direct or redirect any amount of air you want.

 

2000 civic dx - Part #8 - 74149-SR3-000

 

Thank You sir

 

That looks so...tiny.

 

Well, it's a lot bigger than in the pic. LOL. It's pretty much the same size as the condensor. I bought a DAP hatch that had no AC from the factory. It had the block off panel, a cap for the plug by the condensor, a plug that went over the AC button, and an Evap delete box. Pulled it all out to put AC in the car.

I figure if Honda put the panel there, they had a good reason; manufacturers don't just spend money they don't need to.... That said, the typical reason you want that blocked off is because, at certain speeds, the air will want to swirl and actually cycle through the radiator and back around and through again. I'm sure there are other detrimental effects as road debris flying into the engine compartment (baked bugs probably don't smell that great).

 

Actually, grilled grasshoppers are great. Not where you were going, but...

 

FYI its the same part 92-00

 

Made one today out of 1/16" alum. DIY

 

I can say that the block off plate will help.I noticed a difference on my car before and after adding the block-off.I later added A/C,so I'm stuck for the time being with an aluminum Del Sol rad.On days that approach 100 degrees,I will get a little hotter than normal at the end of a session(B20z BTW).
If you do have issues,I'd definitely go with a full width unit.I'd love to be able to,and I'm slowly assembling parts to install an Integra rad and condenser on my car,but it looks like it'll be a PITA fitting the condenser in the Civic chassis.
That being said,I can't see having any issues on the street or just autocrossing with the radiator you have now.Track days may start getting into issues.
Chris