Cool me down to take another round

[FLtrackdays]

If I had significant heat soak issues or went into limp mode, I’d consider that bad boy. Luckily it hasn’t happened to me. Yet….. I take that back. It’s happened whenever I leave the JB4 on by accident. Otherwise, I’m catless and have minor cooling mods. Such as an upgraded heat exchanger & radiators, Verus heat shield and diff plate, are a few that come to mind. Also change my fluids more regularly with more viscous ones.

Some guys drive in the “summer” down here and went with the Wagner. Which makes sense when it’s well over 100F on track.

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[tomfree]

^^^Following that thought^^^

If I'm the only one driving the car, I have not hit the timing/fuel cut...but the majority of my track time has been in cooler weather. The issue from the other week was not the first time I've shared the car in an event, but it was the first time in "warmish" weather.

The way the car gets used now, I'll probably have co-drivers pretty regularly, so this is definitely a thing for my use case.

 

[SavagePassenger]

I was having trouble finding much info on this so was wondering- anyone have any idea or data on whether a thermal black coating on aftermarket intake manifolds makes much difference over raw aluminum?

 

[razorlab]

I was having trouble finding much info on this so was wondering- anyone have any idea or data on whether a thermal black coating on aftermarket intake manifolds makes much difference over raw aluminum?

The coolant does most of the cooling. My manifold is cool to the touch after a track session.

 

[SavagePassenger]

The coolant does most of the cooling. My manifold is cool to the touch after a track session.

ok good to know. It looks like some brands have their manifolds coming in a thermal looking material, and some others have the option to do a thermal black color, but it’s hard to tell if that’s something that will help with temps/heat resistance or just for looks.

 

[Mori]

The phenolic spacer is a "while you're in there" thing, I guess. If I'm going to do the Wagner, might as well do the spacer if it's not prohibitively priced. I've seen plenty of data points where the material has knocked down temps in other places, so the theory is sound.

What other places can we throw a phenolic spacer in for small cooling benefits?

 

[i3igpete]

I was having trouble finding much info on this so was wondering- anyone have any idea or data on whether a thermal black coating on aftermarket intake manifolds makes much difference over raw aluminum?

There was surprisingly little on SAE mobilus, so we will need to rely on YouTube a/b testing.

 

[razorlab]

There was surprisingly little on SAE mobilus, so we will need to rely on YouTube a/b testing.

That is very different as the core is ambient air to charge air. Ours is water to charge air. Our core sees zero ambient air.

 

[i3igpete]

All that means is that the water will have a higher thermal capacity than charge air. But the trade-off here remains: whether the improved radiation heat transfer outweighs adding a conductive thermal resistor

 

[Bug2th]

All that means is that the water will have a higher thermal capacity than charge air. But the trade-off here remains: whether the improved radiation heat transfer outweighs adding a conductive thermal resistor

last year was running mostly stock and iat was hitting around 120-130F on the track with ambient around 85 but I’m not a hard core track guy.

So now I have a jb4, hypercore, running around e30/91oct and what made the biggest difference was adding wmi via chargepipe and a Jesse tune. Hitting 28psi (trims ~40 and under) and at the track iat temps never went over 105F with same ambient temps and I was pushing a lot harder.

 

[FLtrackdays]

I was having trouble finding much info on this so was wondering- anyone have any idea or data on whether a thermal black coating on aftermarket intake manifolds makes much difference over raw aluminum?

The coolant does most of the cooling. My manifold is cool to the touch after a track session.

I know black cars are hotter to touch after a track session ? ?

last year was running mostly stock and iat was hitting around 120-130F on the track with ambient around 85 but I’m not a hard core track guy.

So now I have a jb4, hypercore, running around e30/91oct and what made the biggest difference was adding wmi via chargepipe and a Jesse tune. Hitting 28psi (trims ~40 and under) and at the track iat temps never went over 105F with same ambient temps and I was pushing a lot harder.

For me it didn’t matter outside temps or driving “hard core” on track. Prolonged full throttle driving (tracking) & she’d go into limp mode with the JB4 on, using 93 octane. Maybe that was the difference, using 91 octane and a charge pipe? Is your turbo stock as well?

That’s how I know I forgot to turn the JB4 off. I’ll be out doing a warm up session and next thing ya know I‘m driving with my hazards on, fist in the air that I’m pitting to turn the damn thing off ?

 

[Habu]

Another cooling mod to mention is upgrading to the G series M 1000w radiator fan. Our Supra one is 800w and a different blade design.

The M series 1000w fan is what they use on the Supra GT4. BMW also uses it on the M240i/M340i/M440i with the cooling package.

It's a drop-in mod and helps the whole front cooling stack (radiator, heat exchanger and trans cooler). The negative is it's $1100 or so new. You can try and find used ones off wrecked cars on ebay and get them for about half the price.

Will the fuse on this circuit need to be upgraded given the larger power consumption? when given.

 

[Z4m40i]

Will the fuse on this circuit need to be upgraded given the larger power consumption? when given.

just wanted to follow up in this since I just ordered a radiator fan.

You shouldn't have to change anything else out since the 850watt fan found in our cars shares the same exact wiring, fuse amp, and cut out relay as the 1000watt fan.

 

[razorlab]

I found that the 1000w fan is also on the G series 330e. Happy eBay searching!

 

[Habu]

just wanted to follow up in this since I just ordered a radiator fan.

You shouldn't have to change anything else out since the 850watt fan found in our cars shares the same exact wiring, fuse amp, and cut out relay as the 1000watt fan.

Thank you.

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