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Hey, I have spent some time on a road course, mostly summit point, first with an nx with bolt ons (early 90s), then a turbo miata I built in the late 90s. The miata was a pretty well built car (flyin miata kit), including a fat alluminum radiator, and yet it still would get hot. The LINK computer system had a "limp mode" mechanism when it got too hot on the track, but it was still frustrating to be whipping up on a bunch of "faster" cars only to head down a straight and have it slip into limp mode and have everybody want to get back in front of me. So, my question is. I just bought an nx with an avenir in it. It is a well built car, but the radiator hasn't been replaced. I now live near road atlanta, and I want to spend time on the track. Is it possible on a stock radiator? What about on an upgraded radiator? Is there a bolt in radiator for the job? Thanks in advance. Danny
there are a few radiators you can drop in that will do MUCH better than stock, though the stock NX radiator is a pretty good one. There is a Modine unit and a couple KOYO units. Koyo makes the huge all aluminum race radiator and a more replacement sized radiator. Modine makes a radiator that is copper/brass and is thicker than the NX radiator. It is like $160, where the Koyo will be a lot more (like $350). Here is a page with Koy0 and CSF radiators http://www.absoluteradiator.com/Prod....asp?idProd=27 the modine is like the bottom one on that page, just a tad thicker. Modine can be bought from Carlos Faxas through the forums here. I think his name is 93 blackbird.
Brent
__________________ Coach - EEN Member/The Fist Don't F with me!
1993 NX 2000 -- Slate Grey Metallic bitches
1999 SE-L -- Turbo stuff on it
Copper Brass is not as good as aluminum. The Koyo I bought had inlet and outlet ends that were smaller then the oem ones (by about 1/2). I returned it (came damaged anyway). Cutting holes in the bumper cover and using some ducing to insure the air getting in does not bypass the radiator will do a lot to help with cooling. More then a brass radiator would be my guess.
There will be a new-to-the-market 3 core aluminum radiator available for your NX very shortly. It will be much thicker than stock, and you'll probably want some slim fans since you have a turbo sitting down low.
If your intercooler is front mounted, it will really block the airflow to the radiator, especially on a NX. My SE-R heated up every 3 laps in Birmingham last month, requiring a cooldown lap.
I am prototyping the B13 SE-R version of this radiator, and it is being shipped to me today.
Sit tight for a month or so, and you'll be hearing a lot about it. Price will be in the $300 range.
I had no cooling issues at Birmingham with a NISMO (GTi-R) radiator, PTI cooling fans, and water wetter. It never went above 205*F even though I was running a lean fuel mixture.
However, the new "prototype" radiator should be promising!
I am prototyping the B13 SE-R version of this radiator, and it is being shipped to me today.
It should fit the b13-b14 then.
Three row, Aluminum, $300
Do not underestimate the benifits of ducting. It is known that ducting can improve cooling on a radiator by up to 30%. The GTIR radiator is not a 30% improvement. In other words. Do the ducting first. It's a lot cheaper. I am convinced that it was worth at least a 20% improvement on my car.
I had no cooling issues at Birmingham with a NISMO (GTi-R) radiator, PTI cooling fans, and water wetter. It never went above 205*F even though I was running a lean fuel mixture.
However, the new "prototype" radiator should be promising!
Let me clear one thing up: To me, 208* is 'hot' and headed for meltdown quickly, at least on my car. I know I can get away with higher temps, but do not wish to go there due to my engine's high mileage. In the third session at Birmingham, I hit 208* after about 4 laps, and decided that was time to cool down.
So, it's not as hot as some would think. But still...heading there quickly.
The new prototype *should* be in my hands shortly. It has been delayed due to an unforeseen accident at the radiator shop that is producing them. I'll have full pics of the install when it does arrive.
Couldn't he do an electric water pump? (if this isn't a daily driver) That should cool it pretty good as well.
I can attest to the Mezier electric water pump kit. I got it from Summit for my SE-R Cup NX and it has been a great combo with just the stock NX radiator. To me 208 isn't dangerous hot, but it is getting there. On hot days we'll see up to 220, but I wouldn't want to go higher than that. It also depends on where you measure the temp.
The new prototype *should* be in my hands shortly. It has been delayed due to an unforeseen accident at the radiator shop that is producing them. I'll have full pics of the install when it does arrive.
I'm in the market for a new radiator. Lets us know when you get your hands on it.
First of all, I said 205 not 208. Second of all, the stock fans turn on around 200*F. I was told not to worry until 225*+. I don't think those temps are high...especially for a car that was in boost for 8/10th's of the course.
Greg, your not getting old on me are you???
Quote:
Originally Posted by SERprise In WV
Let me clear one thing up: To me, 208* is 'hot' and headed for meltdown quickly, at least on my car. I know I can get away with higher temps, but do not wish to go there due to my engine's high mileage. In the third session at Birmingham, I hit 208* after about 4 laps, and decided that was time to cool down.
So, it's not as hot as some would think. But still...heading there quickly.
The new prototype *should* be in my hands shortly. It has been delayed due to an unforeseen accident at the radiator shop that is producing them. I'll have full pics of the install when it does arrive.
First of all, I said 205 not 208. Second of all, the stock fans turn on around 200*F. I was told not to worry until 225*+. I don't think those temps are high...especially for a car that was in boost for 8/10th's of the course.
For what it is worth I was told 220 is the limit if you are measuring the temp at the stock location. 230 if you are measuring in the upper radiator hose. I plugged a techtom into my car at the convention and my car did read about 10F higher at the upper hose then the stock location. I see 210 all the time on the street and my fans dont even click on until over 210F (all upper hose measuring).
I am assuming this 2-core unite will still be superior to the 2-core in an nx, no?
Think twice as thick as a stock NX radiator, and you're in the ballpark. I've already shot photos of all three radiators (NX, SE-R, and the prototype) together, and it isn't even a contest in terms of size, capacity, and thickness.
Think twice as thick as a stock NX radiator, and you're in the ballpark. I've already shot photos of all three radiators (NX, SE-R, and the prototype) together, and it isn't even a contest in terms of size, capacity, and thickness.
Any details on this rad? Any word on making it work for a B14, Greg?
IIRC, it's still in a "R&D" phase right now. Just finishing up the final touches. The seller is still top secret, but the price/quality will be second to none. Good things come to those who wait.
