I was wondering about how people are dealing with the radiator hose issue. I know I could use a 99-00 radiator or Del Sol V-tec radiator. But is there any other way? Are there any companies out there that make a necked down radiator hose for B-swap in an EK?

 

Buy a jobber rad for either one of those models, they are cheap! i'd say like $100-150

 

use your d-series radiator with b-series hoses. just clamp them with good clamps

 

lousy advise, don't be so cheap, it's a car

The vtec b series rads are full dual core with a much better cooling ability and of coarse fit the stock b series rad hoses perfectly.
The crappy way of reusing a single row oem d series rad works poorly and often shows with having the rad fan turning on and off constantly during warm weather conditions.

Here's a shot from my 96 hatch with B20 swap...96 Del Sol vtec dual core, all the way!



It looks and fits perfectly, you'd never even know, except performance wise

 

EDIT: double post, no idea why.

 

Why is this lousy advice? I've been running a B18C1 on a stock EK radiator for over a year with absolutely zero leaks.

According to my digital WT guage, it cruises at about 176F. In traffic on a hot day WITH AC ON, it might get up to 202F, which is normal. In fact, the temperatures run exactly the same as they did when I had a d16y8 in it. And really, the GSR cruises 800 RPM higher than the d16y8, and makes more heat.

The GSR runs 100% within factory temperature specs on an EK radiator (even when I beat the hell out of it), with no leaks, so why is it lousy advice? I realize that it's not the best radiator for a track car, and that the DelSol VTEC radiator is a better choice, but running a stock EK radiator with big hose clamps is not going to make his car instantly self destruct, or even damage it at all, as long as he makes sure he's got the clamps on tight and isn't running it around a track for hours at a time in 90+ weather.

OP: Get the big silver hose clamps and put them on tight. It'll work just fine.

Pic related: It's my gsr running perfectly on a stock single core civic radiator:

 

You can either use your stock rad with the b series hose and just put it hella tight or just go get a oem replacement for like a 100 bucks

 

What kind of B swap? B16A upper hoses and B18C upper hoses are totally different. I'm not too sure about the lower hoses, but I'm positive the uppers are different.

 

i think its the other way around. i'm currently using my stock ek hatch radiator with my ls motor. i used the ls upper hose(which came with it) and had to buy a ls lower radiator hose to fit properly. i remember reading somewhere so thats why. no leaks at all. just tighten it.

 

I just did a b16a2 swap and 5 speed conversion in my 99 civic lx sedan automatic....I just used good clams that could wrench down and would stay tight and had no leaks so far...and it cools just the same. If you want you can upgrade but if you don't have the money just use the stock one....just like the pic above...it works.

 

okay wow..these guys are ALSO using their stock radiators on their B-series and it seems like they are not having problems of any sort. I AM using my stock d-series radiator on my GSR and it works great.

 

does it really work "great"? or just get the job done?

lol.

 

Right. You used the LS upper hose which is a B18 hose. If you were to try to use a B16 hose with your B18 motor, you'll see that it doesn't fit. Here's a pic of a B16.

http://hondaswap.com/attachments/384...engine-bay.jpg

 

I'd say it works as well as any stock radiator setup, although obviously not optimal... but then again, if we were all looking for optimal, we'd all be running Fluidyne or Mishimoto radiators. In a stock, non-track, daily driver situation, there's absolutely nothing wrong with this setup.

In fact, I did say that about 4 posts up, and posted my admittedly anecdotal proof:
Again, no one has told me any reason why it's a horrible, terrible idea to run a d series radiator. I've heard lots of conjecture and opinions, but no one has given any numbers proving that it's not enough radiator to cool the engine.

And that's because, in a stock situation, it works just fine. I posted numbers proving it. If I wanted to, I could post a video of me raping on it for 30 minutes, and it wouldn't go above 200F... which is exactly the same temp it would be running with a B series radiator after 30 minutes of raping on it.

If I drove it on the highway at 80mph for 8 hours, in the summer, with the AC on, it would sit at 176F-180F all day. Which is exactly the same temp it would be running with a B series radiator.

I've been running like this for 10K miles, and over a year with no leaks, and normal temps, and I don't baby my car. If I ever tracked it (or broke the radiator) I'd go with a bigger radiator, but if there's no reason for it, it's a waste of money.

 

^^werd up haha.

 

If you have an automatic d series radiator you basically have a del sol vtec or em1 radiator with smaller inlet/outlets.
It's a 2 row radiator just ignore the transmission fluid cooler line. So that's a cheap upgrade when the time comes for it.
But so far I've been using my stock rad on my ls swap with no problems what so ever

 

alright, so since I need to get hoses and a radiator will getting the hoses and the radiator out of a 99-00 Si solve my problems? JUst want to make sure the hoses fit on a b18b

 

The stock radiators work fine on my swapped crx and ek. I think the money it would cost for a new rad would be spent alot better on security

 

This thread kills me......

will d series work, yes, work good, no, not that great

Honda spends all kinds of time, money research building and designing the cars to be as good as they are. "EVERY" b series powered car has the dual core design with the larger rad hoses....why do you think that is????

You can buy a used rad for like $50, or double that for a new one, it's not like its a lot of money to upgrade properly. The last car i bought which i'm currently building is an EM1 with oem b16. At some point in time before i owned it, some jack *** put in a d series rad, and of coarse had to super clamp on the hoses to fit the smaller openings....looks stupid. When ever we get a warm day, my engine is still able to keep cool, but definitely not as good as dual core. The fan is constantly turning on/off every 2-3 mins.....not very good imo

Engine swap time next month, the d series rad is getting tossed!!!

 

Okay...I'm going to pick up a used Si radiator for 45 shipped. Could somebody comfirm that the b16a2 hoses fit and run around the b18b motor the right way?

 

No, it won't. I've posted twice above saying that B18 hoses and B16 hoses are different. You'll have to get upper and lower hoses for an LS in order for it to fit.

 

Sorry missed the second post. Thanks everybody for the knowledge.