I have been dealing with overheating stemming from my open cone intake. OK, there is a makeshift heatshield, but I don't think it ammounts to much.

As you can see from the pics I took, there is much in the direct path of the air from the fender/bumper area. Or am I wrong?

In desperation, things that I wouldn't have considered before are becoming food for thought... you know that a hole in the hood is easy to do, and it works, but is there a solution that is keeping with the car's restrained character?

Any idea of getting significantly more cold air without cutting the hood? Or, if not possible, any idea on cutting that doesn't look like it's not proper on a jag?

The most conservative of the extreme ideas envolves making a long, thin intake just behind the grilles, which robs about 1/3 pf the area needed for cooling the main radiator (yeah, I know), and diverting that for the intake. Either through the factory intake near thr expansion tank, or directly (if the maf is relocated).

If anybody has any ideas, don't be shy

No matter how crazy, as long as it works, and it doesn't look like the King in full regalia, but wearing yeezys, I will consider it.

Thanks

 

The factory setup was a COLD AIR INTAKE and now you have a HOT AIR INTAKE? (why?)

 

Did you modify the air intake, or was it this way when purchased?
Is the check engine lite on, or is it disconected?

 

I realize I perhaps should have made an intro to the problem, sorry for that.

I have a 3.0 liter Kenne Bell twin screw, to replace the 2.6 that I originaly have installed. Restrictions before a positive displacement supercharger cost dearly. Par example, just a dirty cone filter cost me about 4 or5 mph in the 1/4. Car put down 493 horses, so ~620hp at the engine.

So that means about 50-60 at least lost due to restrictions, just on a dirty filter. And that was with the smaller, 2.6L unit. Immagine going back to the factory setup with the larger supercharger now installed, and with boost going up.

Now interestingly, from my research I concluded that heat affects power less than intake restrictions, on positive displacement supercharged engines in particular. In a way it makes sense, because once you are at WOT, you eat huge volumes of air, and get rid of the hot air around the engine compartment in a blink - and any air that comes after that is cold, and it really doesn't have time to spend in contact with the hot parts of the engine bay to get hot again.

That being said, this is clearly not optimal, and it sure doesn't promote longevity. I have now installed a water/meth kit, but that is for >50% throttle, I want to find a solution for low/idle situations as well.

The factory actualy did quite well with the intake, considering that the car has obstacles through basicaly every direction for access to cold, outside air. But it is a bit restritive even at the stock 400hp levels, as the people using the Caldoofy elbow can attest. With the larger supercharger, a built 6hp26 from Australia, 102mm maf (75mm tube installed right now for tuning purposes), and 850cc injectors, my initial goals for the 3.0 KB are around 800hp, going up from there, just as soon as Moscow Leaper gets my tune right for the new setup - we have been trying for about half a year now.

The car NEEDS serious volumes of air. As I said, the factory did good, and just about found enough of a path for 400hp, but did not plan for anything beyond that. The XKR guys are lucky, you stick the intake into the fender, and you're done.

What can be done for the supercharged XJ?