When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Has anyone who has noticed that the cabin is pretty hot after a run changed their engine firewall, whether with an OEM part or replacement? Any difference?
......I've read a suggestion that improving the insulation of the cabin means that more heat is trapped withiin the engine compartment. Thoughts?
Heat does not get trapped in the engine compartment. An air-cooled engine has lots of air flow, and the vents remain open even after the fan stops. The heat escapes, and I doubt the heat transfer into the cabin is going to change the cooling rate by any significant amount.
Peak engine temperatures result from high power settings during hard or uphill runs. Then it is important to run and low load for a couple of minutes to cool down before shutting off the engine.
Last week I came back from a road trip where I had the backseats stuffed with duffel bags. After driving for hours I emptied the bags from the car. The duffel bags that were firmly pressed against the firewall were definitely warn to the touch, but not hot. Of course some heat transfers into the cabin without the engine pad, but not an extreme amount.
I was looking at a Boxter last night. The liquid-cooled engine is almost completely encapsulated. Perhaps insulation on the cover panels is where the concerned about "trapped heat" is real.
Seriously though, if you have gone through ripping out chunks of the OEM insulation material like I have, you'll find that what Porsche put in your car 20+ years ago is as good at keeping engine bay heat out of the cabin as this KoolMat stuff (and probably lighter...).
You are probably getting more heat transfer from outside the car, the forward dash area and / or the oil lines. My guess is that you are probably feeling the effects of the latter as you are pretty much sitting on top of the lines in your RHD drive car...
Thx for the responses guys. My rear seats get pretty hot when I leave my car parked, and come back after abt 2 hrs. Same for the seat belt for the driver (RHD) as I believe that the oil tanks is there.
So not sure if the insulating material is not doing its job on the engine heat issue.
Stunning Porsche 356A Super GT Speedster Auction Fails to Meet Reserve
Slideshow: One of the rarest Porsche 356 Speedsters ever built has resurfaced, offering a glimpse into a little-known chapter of the model's competition history.
Theon Goes Full Carbon Fiber With Stunning New Build
Slideshow: Built around a carbon-bodied 964 and a naturally aspirated 4.0-liter flat-six, this bespoke commission highlights how far the restomod formula has evolved.
Tuner Is Converting Porsche 911s Into Shooting Brakes
Slideshow: A Polish Porsche specialist is moving ahead with one of the most unusual 911 conversions in recent memory: a shooting brake version of the 991-generation sports car.
This Coachbuilt Creation Is A Modern Take on the Legendary Porsche 917
Slideshow: A Porsche Carrera GT has been transformed into a one-off coachbuilt machine that blends analog supercar engineering with styling inspired by the legendary 917 race cars.