I am trying to fabricate a v-mount setup now for my 20B. Originally I was going to just do a fmic and koyo N flow or bigger radiator. Well, a vmount is going to be VERY tight on space, and I am wondering if I use the regular Koyo I was running for my 13B in a v mount setup with some strong fans, it will hold good temps or get way to hot? I am not tracking the car at this time, but not babying it either... Would love some feedback and opinions...

 

I have my koyo and a FMIC and I dont over heat. You should be fine.

 

Thanks. Anyone run the N Flow?

 

I was running an Indiglo radiator, FMIC, dual oil coolers in the bumper area, no overheating issues but I never ran the car hard either.

 

What are you going to do for water pump? Stock or electric?

Some people say that dual pass and N-flow may slow down the flow of coolant vs. a regular single pass radiator. I don't know for sure but something to think about if you haven't already.

The radiator height is about 15". Not sure how much further forward the 20B sits but if you can mount the rear edge of the rad to the tabs where the crossover bar normally mounts to, you should be good to go.

I'm contemplating a dual pass with both in/outlets on the driver's side.

 

That would be very cool.. How far are you on that? I have heard some mixed results on the N Flow, but the majority seems to say it cools better. I am planning on going to an electric pump sooner rather then later, and I assume that will make sure I dont overheat.

 

i am running a koyo also and a FMIC and also no issues, again i have`n ran the car hard yet but , i have let it just sit and idle with the ac on for over an hour and no over heating whatsoever ,

 

Ok, so I will probably try and use this one. I have been considering the N Flow...Any thoughts on it?

 

never used it , did you get my e-mail ? there is a pic in there with the setup

 

IMO the N-Flow is the best commercially available radiator. Short of doing a custom multi-pass 3-row I don't think you can get anything much better. Whoever said anything about multi-pass radiators slowing the flow of coolant and causing problems doesn't know what they're talking about. At all.

I've never seen an FD Fluidyne but the one's I've seen for the FC have very thin cores relative to the Koyo and PWRs. About the same thickness as a stock FC radiator.

The PWR FD radiator is well built and has a core about twice as thick as stock. Haven't compared it with a Koyo side by side but I'd guess they're close. I'd go with the Koyo though strickly because it's multi-pass and thus should be a bit more efficient.

 

My thoughts exactly.

 

^^Fwiw, I had read that on a thread here. I don't have any direct experience but it seemed fairly logical. Apologies for posting that.

A similar statement was also made with regards to Evan's coolant. Its thicker so it flows a bit slower all else being equal. Apparently this decrease in flow due to thicker coolant lead to Evans making special water pumps for the Corvette application.

I attached a Word doc with the design that I'm shopping around. If you are interested in one also, let me know and I'll have them price accordingly.

 

Get an afco twin pass radiator and use a Tarus fan. This setup is twice as efficient than the Koyo radiators. You won't have cooling issues.

 

Care to back that up with numbers?

 

+ one on the numbers of the afco. Right now I am leaning toward the N flow. I may try the regular koyo, then the N flow just so we have 2 sets of numbers for anyone who is curious about which one works better.

 

Funny you mention AFCO. Was just speaking with them on Friday.

 

So you think it works better then the Nflow?

 

I back mine up on running 1.3 bar of boost, literally raping on my car in the canyons for 45 + minutes straight all through the Santa Monica mountains. I also had a .84 hotside on a GT35R bb turbo. I never saw above 100 degrees C on hot days. I also had a big fat Spearco intercooler in front of it.

Get a twin pass radiator or waste more time and money experimenting with single pass radiators.

AFCO FTW!

Just speaking from experience.

 

I'll agree with you there. Multi-pass rads are more efficient than single pass. However, unless your AFCO core is thicker, is a 3+ row, or has a superior fin arrangement there is no benefit over any other comparable multi-pass radiator. Agreed? Doesn't matter if Howe, Griffin, Fluidyne, Koyo, etc. makes the core. For a given core size, all other things being equal, a radiator is a radiator. I've had several radiators made for road race and street cars. I have a good idea what to look for.

So I'll ask again. Numbers? What are your core dimensions? Thickness, 2 or 3+ row, etc. Price? If you've truely found a better mouse trap I'm interested.

Unlike the standard unit the Koyo N-Flow is 3 pass BTW...


"Just speaking from experience. "