linenfelter dual fan heat xchanger

[KD Innovations]

Originally Posted by islander033

I would go with fans for sure, especially in stop and go traffic or staging lanes.

Fans are absolutely not needed on these units, at least the way I see it engineerred. For one, it sits right in front of a fan if mounted near or at the stock location. Second thing, if constructed correctly, data logging proves a very nominal increase in IATs while sitting at stop lights for several minutes on over 100* days.
Remember, these supercharger heat exchanger is not the radiator, charged with cooling the motor while the car sits idling. That is a job that requires a fan, yes. The blower is not at work building boost while the car is idling at a light so the load is minimal. All of my data logs show a 7-8 degree increase in temps with a 736 RWHP ZL1 while sitting at stop lights or in staging lanes for several minutes on a very hot day. AS SOON at the throttle is cracked, the temps come right back down to ambient plus 8*. That is with the radiator fan not on, pulling any air in.

Fans are not needed and I would suggest a thicker core instead. Ours is 4" thick. Overall perfomance is without equal.

[KD Innovations]

Originally Posted by bumblebeecamaro

I went fanless on my Ron Davis HXer because having to worry about failing fans is a headache I can do without.

there are plenty of fanless HXers that do just fine.

Agreed. More than fine when you increase the core thickness. If you much have a fan, just dial the stock radiator unit to come on sooner in the tune and pull air across the HX and radiator.

[KD Innovations]

Originally Posted by AZ-ZL1

I have one on mine and rarely see the temp go above 195* in the desert heat. 1600 miles, no issues.

On a 110 degree day our unti will see about 121-122 degrees in traffic. At the stock tune starts pulling timing. At 195 degree Iats you have lost 6-10 degrees of timing. Are you sure you are not talking about the out engine coolant temps? Are you data logging? Guys seem to cross both temperatures up often when reporting numbers. Yours seems like an engine coolant temp # IMO.

[KD Innovations]

Originally Posted by islander033

I agree.

Fans on your H/E won't do you much good at +30mph, but I'm worried about stop/go traffic and staging lanes.

I'm guessing that most aftermarket toons start to pull timing around 130F IAT2 and the stock toon is even lower. Keeping your IAT2 as low as possible is in your best interests with any boosted car.

Fans ftw in my book.

The fans will do more to drain your battery in the lanes than anything. Our unit is just over ambient when the car starts moving on a 1/4 mile pass. I would spend the money on a good HX and add a rezzie to really drop the temps.

[islander033]

Originally Posted by KD Innovations

The fans will do more to drain your battery in the lanes than anything. Our unit is just over ambient when the car starts moving on a 1/4 mile pass. I would spend the money on a good HX and add a rezzie to really drop the temps.

I have an upgraded H/E with twin fans currently (different car...I know).

I had my H/E fan relay fail last time at the strip and I lost nearly 4mph in trap speed due to heat soak.

This is why I say fans ftw.

[AZ-ZL1]

Originally Posted by KD Innovations

On a 110 degree day our unti will see about 121-122 degrees in traffic. At the stock tune starts pulling timing. At 195 degree Iats you have lost 6-10 degrees of timing. Are you sure you are not talking about the out engine coolant temps? Are you data logging? Guys seem to cross both temperatures up often when reporting numbers. Yours seems like an engine coolant temp # IMO.

Yes sir, my bad. That is the coolant temp.