Has anyone ever put fans on the stock heat exchanger?

[Chrispy]

Curious if anyone has put spal fans or similar on the stock heat exchanger with a manual switch for the fans and the intercooler pump?

Cheers,
Chris

[white ZL1]

Why would you need to add fans to the stock heat exchanger?
If you're just trying to cool the car down between passes at the drag strip, wire up a switch that kicks the pump and factory fans on. My tune is set to have the pump on when the key is clicked on and I turn the fans on with HP Tuners when I'm sitting in the staging lanes and it does a great job at pulling heat out of the blower between passes.

[MikeOD]

Originally Posted by white ZL1

Why would you need to add fans to the stock heat exchanger?
If you're just trying to cool the car down between passes at the drag strip, wire up a switch that kicks the pump and factory fans on. My tune is set to have the pump on when the key is clicked on and I turn the fans on with HP Tuners when I'm sitting in the staging lanes and it does a great job at pulling heat out of the blower between passes.

If you have HPTuners, you could just program the fans to run on after ignition off until things are below a certain temperature...if you got really creative with wiring you could have the IC pump run under those same conditions too...fully automated.

[Chrispy]

Thanks I didn't realize the engine fans would have enough power to also draw air through the HX in addition to the rad and AC condensor.

I'll look at a switch to turn both on.

Cheers,
Chris

[Stephen12ZL1]

lipstick on a pig? lol!

[jessrayo]

The supercharger heat exchanger, A/C condenser, and radiator are all pretty much right on top of each other. When the stock fans come on they pull air through all of them. There are some supercharger intercoolers that have a pusher fan on the outside. Mixed reviews on these. I added a huge turbo intercooler in front of the other 3 coolers so I needed bigger fans. The spal fans are good but expensive and you need to mess with their logic to get them to come on early enough. I had some issues with mine in the beginning.

[tnspd]

In my tune the fans come on with the ignition switched on.

[Bigtime53]

Originally Posted by white ZL1

Why would you need to add fans to the stock heat exchanger?
If you're just trying to cool the car down between passes at the drag strip, wire up a switch that kicks the pump and factory fans on. My tune is set to have the pump on when the key is clicked on and I turn the fans on with HP Tuners when I'm sitting in the staging lanes and it does a great job at pulling heat out of the blower between passes.

Would you please educate me on the HP Tuners. I have read here on this site about them but yet have not found any info on them. Do you have to have a lap top or not hooked up someway to the car to make this work? Thanks

[magzx12r]

Any heat soak issues in stop-and-go traffic with a pulley and tune causing the computer to pull timing? I had this issue on my GT500 and ended up installing an aftermarket heat exchanger with fans. This helped out a lot in the Houston summer heat.

[white ZL1]

Originally Posted by MikeOD

If you have HPTuners, you could just program the fans to run on after ignition off until things are below a certain temperature...if you got really creative with wiring you could have the IC pump run under those same conditions too...fully automated.

That's based on coolant temp, not IAT2 temps.

Originally Posted by tnspd

In my tune the fans come on with the ignition switched on.

And I suppose that would work for a track only tune, but isn't something I'd want on a daily basis.

Originally Posted by Bigtime53

Would you please educate me on the HP Tuners. I have read here on this site about them but yet have not found any info on them. Do you have to have a lap top or not hooked up someway to the car to make this work? Thanks

How much time ya got? Lol. Www.hptuners.com plus lots of threads on this site. If you want to know anything specific PM me. Been using it for 10 years plus.

Originally Posted by magzx12r

Any heat soak issues in stop-and-go traffic with a pulley and tune causing the computer to pull timing? I had this issue on my GT500 and ended up installing an aftermarket heat exchanger with fans. This helped out a lot in the Houston summer heat.

Shouldn't be, and if there is you'd more than likely have a mechanical issue.

[tnspd]

It runs all the time and I have not had any problems. I run it on road coarse about 5 times a year and the drag strip about 10 runs a year. Never had a problem.

Sent from my SPH-L710 using Tapatalk

[jessrayo]

Originally Posted by magzx12r

Any heat soak issues in stop-and-go traffic with a pulley and tune causing the computer to pull timing? I had this issue on my GT500 and ended up installing an aftermarket heat exchanger with fans. This helped out a lot in the Houston summer heat.

HP tuners is one of the computer programs that reads and allows adjustment to the factory set tune on the car. HP tuners is probably the most popular and widely used aftermarket tuning program for GM cars. Most people do not actually need or really want to be messing with the tune in their car.

Originally Posted by tnspd

It runs all the time and I have not had any problems. I run it on road coarse about 5 times a year and the drag strip about 10 runs a year. Never had a problem.

Sent from my SPH-L710 using Tapatalk

I suspect that White ZL1 was not referring to racing but rather daily driving issues like how long it would take your car to warm up in the winter if the fans started immediately every time the engine did. Might work fine in Florida but wouldn't recommend that option in Minnesota... Canada...etc.

[tnspd]

I drive it daily and have no problems. It heats like normal and the heat blows very warm air. Sometimes too warm and you need to turn it down.

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[jtulery]

You could just put on a Active Interchiller . Works with the AC all self contained. No need to mess with the wiring or computer/fans . It just works. see/talk to David