[Build Thread] -- Journey to 700+ WHP [Supercharger]

[Orestp]

I've had the GTM twin SC since 2013.

I've had 3 pulley / idler failures, bearings went and the the belts disintegrate - then I take it all apart - clean up the melted belt rubber, replace the failed pulley or idler, put it back together, etc., etc.

I track the car (20 min sessions) and do not think I'd have these failures if it was just daily driving / hard driving / thrashing.

I'm thinking of going turbo as there's fewer moving parts i.e.) fewer pulleys & belts.

Heat management has also been an issue - I've added the large GTM oil pan, vented hood, run water & water wetter, and recently deleted my 34 row air to oil cooler and added instead the largest Laminova oil cooler (coolant to oil) that exists - all these mods have improved cooling but I still over heat after 10 - 15 min of track time - and have to take a slow lap to get the temps back to an acceptable level.

Does SC add more heat to the system and turbos do?

Does any one think turbo is more reliable for track days?

[TopgunZ]

Originally Posted by Orestp

Does SC add more heat to the system and turbos do?

Superchargers definitely run much, much cooler than turbos. Turbine housings will glow red from the heat and if you had proper airflow across a supercharger you could put your hand on it. Turbo's also require a cooling source where SC's just need a lubrication source. Therfore a turbo will feed more heat back into the system either through oil, coolant or both.

Top mount turbo's will produce a lot of engine bay heat, twin turbos will also as heat rises up into the bay except where when your moving it should escape bettter. Then theres the BP kit that mid mounts it where all of the heat escapes. Even in the best scenario you wouldnt be gaining anything from a heat management point by going to a turbo setup.

*Edit*. Now you have me thinking that the parasitic drag from not only 1 but 2 superchargers must be pretty intense. Possibly the extra amount of heat the engine produces to overcome the drag is creating more heat than a different kit.