You didnt get the 25 row?

apparently the g37 has some room issues lol..

I track my tt 370 and the temps are a problem in more then just the engine also. I boiled the diff oil and it spewed out onto the track and I didnt even know it was happening untill I got under the car and saw it. No problem I bought the nismo diff cover and it helps but it still gets pretty hot. The engine temps Iv never been on a long track with long straights that you would stay on the boost constantly but the tracks here the most iv seen is 245 oil temp. It does get a little tricky when gassing on it out of a curve because so much power comes on so fast I almost lost it a couple times. All in all none of the supercharged 350s or turbo 350s stayed up with me so I think it was pretty successful. Then again im new to the whole road course thing. As for the drag strip it was pretty cold out and the temps stayed down even when I was just about hot lapping. I have a video on youtube of me on a little road course. The other thing is sometimes when the gas got low on a hard turn it would starve itself of fuel but would regain quickly but it would make a spudder. The turbo was much harder to get used to considering the super chargers were much more predictable but all in all I had a blast. The 370 really isnt that hard to make a car you can take to the track every now and then. I have a 34 row oil cooler on my tt and thats it. If you really want a serious car to take alot itll take some extra work if you want it to be reliable.

cf radiator will be here friday.

really? Ya i am running both 25 for oil and tranny. I bought an additional 34 row. So i am going to do both 34 row and 25 row for the oil cooling.

Hows your oil running? Mine runs extremely hot and im not getting any help either.

We also have CSF radiators. We have three instock now.

Mines is over cooling on highway speeds

That's a thermostat issue, not a radiator issue.

So is Mine. What temps is your at? What row are you running for your cooler?

I would be interested in the condenser-less version especially if it had built in oil-to-water heat-exchange capacity. Maybe there are a couple of other racers on here that have ditched their A/C or are getting ready too. Travis? Mike?

On the hot days my water temps (and oil temps) have been way too high. My current oil cooler blocking the radiator doesn't help. Am considering some hood vents to increase air flow through the radiator, do you think these make a significant difference?

From 190f cools to this low on the freeway with 45f outside temps

http://i40.tinypic.com/2r5q7br.jpg

We can supply our Competition 70mm radiator with or without the A/C condenser and we have a huge heat exchanger that can be used to cool either engine oil or automatic transmission fluid.

Here is a link to it on our website: GTM Motorsports*::*COOLING SYSTEM*::*GTM 70MM Competition Radiator With Heat Exchanger That includes the A/C condenser, but it would obviously be less expensive without it.

I'm working on the press release and should have it done tomorrow. In the meantime, here's a couple pictures:


We also have a high output fan shroud and fan system available as well to increase airflow at low vehicle speeds (traffic, low speed corners on the track, etc.).

GTM Motorsports*::*COOLING SYSTEM*::*GTM H.O. 14" Dual Fan Kit For Z34/V36

I know we have a thermostatic kit on the way to you, but in the meantime, you could always cover the oil cooler if you are concerned with the temps dropping too low.

Wouldn't the electronics box on the lower fan shroud (top picture) be better off mounted against the flat radiator portion that has no fins in-between the two fans? Odd to me to place it such that it impedes airflow given the room you have. Edit: just realized those are OEM fans so I am sure this was not a GTM design decision.

Along those lines, it's interesting to me that so much of the back is blocked off so such that air can't freely flow through. You would think that this would really impact heat exchange efficiency. Perhaps the action of the fans more than makes up for that. Very nice looking kit in any event. It is about 2x what the CSF kit costs so I am curious what the performance difference is.

Very interesting. Good price on the radiator especially if it is cheaper without the condenser, ouch on the fan shroud :)

Mike, what you recommend for a secondary oil cooling system, or will the radiator heat exchanger be enough? E.g. will it be equivalent to a normal sized Laminova unit?

What's the average temps are we suppose to be running?

The idea is was to allow an option to run the factory fans if desired. We also have an option to run a pair of larger 14" fans.

In regards to "blocking" part of the radiator, the factory shroud does the same thing. That is to allow the fans to draw air through the radiator more efficiently.

Our radiator is 70mm thick compared to the 30mm thick alternative and 18mm thick stock radiator. Running a much thicker radiator core increases coolant capacity as well as increases heat transfer. This also allows us to run a substantially larger auxiliary heat exchanger in the end tank for better oil cooling (trans or engine). Basically, the heat exchanger in our radiator is large enough that you don't even need to run an air-oil cooler on an automatic transmission...it does a spectacular job on its own.

That's what I'm planning on doing this weekend till that part comes in. Idk how much longer it's going to take to get it to me but i am being patience at the mean time.

OK, so the two questions that I think are most important are:
1. Can this radiator support FI oil cooling (assuming no Auto) without an additional air-oil cooler? You seem to suggest that, but I am not sure if that's talking stock car or FI car.
2. Where is the AC condenser? Is that the black, smaller radiator in the pictures above? And if so, where is that mounted?

1. We are going to be offering a setup that does not require an air-oil cooler on a Forced Induction car. All you'll need is the radiator with the internal heat exchanger and another really awesome piece...

2. The pics I posted don't actually show the A/C condenser. The small black heat exchanger is an auxiliary air-oil cooler (for automatics that still need engine oil cooling, or those extreme powered cars that need an auxiliary engine oil cooler in addition to the internal heat exchanger)

What? The dual 14" SPAL fan or something else. Dang it man! I'm on the edge of my seat over here. :driving:

And where does the A/C condenser get mounted? Or is it internal to the 70mm piece?

Doc Brown is trying to come up a name for it...I told him that Flux Capacitor is played out. So as soon as he comes up with a good name, I'll let you know. :P

The A/C condenser gets mounted up front.

D'oh! Any pics of AC compressor installed with your radiator?

Lots of posts but no real evidence anyone has successfully tracked FI car in warm weather ...You know someone who really pushes car on track at temps seen during summer. Without a lower compression build, huge amounts of cooling I don't see forced induction working for serious track car. I'm pretty sure I could manage engine heat by short shifting, etc. However I hate doing that. I want a car I can depend on. I also do Hillclimbs and I worry about FI as hill climbs I do are in 90 to 100 degree weather.

So I hit Laguna Seca yesterday. Yeah, the temps were nice, just mid 60's, nothing hot. The sessions were 20-25 minutes long, and the highest temps I saw were 240 for one session. Most sessions I was hitting 220. I know mid 60's isnt a good indicator of summer temps, but not bad for forced induction on 20-25 minute sessions? I was mashing it on any occassion I could.

Our radiator core is 32 mm thick. There is a big difference between the overall thickness of the radiator tank and the actual thickness of the core. A 70mm tank thickness most likely has a core of about 48-52mm (max).

With CSF you also get the advantage of our "B-tube" technology, which is the most efficient tube available in the aftermarket. This tube will increase the efficiency by almost 20%. Because of these special tubes, our complete unit is extremely light, which I know is very important to the track guys.
Also the requirement of buying additional and required products such as fan shrouds, fans, relays, harnesses is not needed with our drop-in fit unit.

Great thread but we need to get a lower temp thermost that works.
does any body have one on there car that works ?

Can you clarify whether any of your offerings have a built-in oil-cooler? I think you mentioned that you considered it, but not sure if you ever did it.

We have a unit which we make in very limited quantities for vehicles with an automatic transmission (CSF# 7011). For manual vehicles they can still use this oil cooler for additional cooling. The cooler is a 6 plate water-to-oil type cooler.

is the cooler any better than the stock oil cooler.

The boost pressure is also a big deal. Tracking while boosting +5-7 psi is different from +16 psi. And superchargers seem to add less heat than a turbo or TT system at the same peak boost/hp level.

One way to make this work is to just get two tunes on a TT system: a very low boost tune (like 3-5psi, almost off) for extended track use and a higher boost tune for street/drag/auto-x/a single fast lap where heat buildup isn't as much of an issue.

Gonna correct you on a couple of things. No one is tracking at 16psi. In fact, no one has reached 16 psi on a stock motor. For turbos, you can turn down your boost controller, but you can never go below the wastegate spring pressure, which is 5-6 psi.

For superchargers, you're stuck. Whatever pulley you have in there will determine the boost pressure. You cannot change boost levels easily.

And I'm pretty sure given the same horsepower and boost level, a supercharged car will generate more heat. In a supercharged car, a significant portion of horsepower (and hence heat) is wasted on spinning the supercharger. Whereas a turbo uses mostly exhaust waste to spin. This is the same reason the superchargers use a 650cc injector to make similar or less horsepower than a turboed car, which is using a 600cc injector.

It's not really that simple. The thing to remember is that a TT car may make full boost at 3500 RPM, while a SC car won't make it until redline. Accordingly, the TT car is making much more power over the rev band--even if they ultimately have the same peak HP--which is clear when you look at a dyno plot of the tq of a TT car. All of this extra power will likely produce more heat than spinning the SC.

http://i313.photobucket.com/albums/l...yno2000005.jpg

Looking at the supercharger dyno, the peak torque comes on pretty early too @4k. But you do have a point.

I think that chart is a bit misleading because the SC run was clearly not recorded from as low an RPM as the baseline, and additionally, the TT just makes way more torque across the band. But yeah, I think we are on the same page.

So doesn't anybody wil FI track/autocross ? what the Hell is the point ofthis car on ramps and off ramps ? Come on you must be kidding at least you can track a mustang!!! WTF

Maybe we should just all go buy mustangs like everyone else then... I'v ridden laguna seca on my GSXR and that track has a good amount of straights.. glad to hear you didnt have any temp issues

You're being a bit near sighted, every FI car has heat issues. More power means larger combustion which means more heat, and additional heat from the lack of efficiency. Even stock turbo cars can fall flat on their face on track without cooling upgrades depending on how good the stock cooling setup is (oops we forgot the intercooler!).

Out of curiosity, do you have either a Mustang or a 370Z?

So to explain my situation I bought this car to autocross/ and some track time . I do believe the car benifits from an oil cooler so i got one . That the puts me (autocrossing scca ) in the street mod category which is fine but the car is not nearly as competetive so it snow balls into well Iwill get FI like the other cars to be on an equal footing . This all leads to is this car really capable of doing this or should I just buy another plateform more suited . (By the way the 2012's that come with oil coolers are still stock catagory LOL ) So round and round I go GO FI not suited for track NO FI not great in class . This is all great so glad I read what a great track car this is .I do like the car but it is NOT a great car for the money I should have bought a speed 3 !

Have you actually had oil issues at the autox track? I have a hard time believing that you could overheat the car on most autox tracks, which are about 60-100 seconds long.