993 Melting Rear Bumper at Exh tips

[BoxsterGT]

Anyone experience having their 993 Plastic rear bumper MELT from exhaust heat?





My real concern is that it is happening only on one side (Right), and that means uneven heat or a lean condition on one side of the motor.

The exh flow crosses over so the excessive heat may be coming from the left (1-2-3) bank. Using a heat gun at idle the temps are the same.

Just wondering if anyone has seen this before.........

Len at Autosportengineering dot com

[agrimmitt]

Len: I saw it at Monterey about a month ago now, on a car in the groups lot. I don't own a 993, but the issue has to be a "hot" exhaust leaking or that the tips are just to close to the body work. On my RS clone, I had to line the bottom side of my fiberglass fenders with a fire retardant tape material. Due to my pee-shooter exhaust just being to close to the fiberglass as it exited the body. I didn't danage it, catch it for first day, but it got very warm at idle. See you shop or dealer before it get worse or you catch in on fire.
art

[BoxsterGT]

Close inspection of the drivers side show a similar problem, just not quite as much.
However, it also looks like the drivers taillight is damaged from heat.
This is a new purchase for a customer and we must research the history.
Something smells in Denmark, and its not fish.
Len

[Joe Bob]

Either get better insulated tips or cut a larger outlet in the valance.

[axl911]

Check to see if the heat shields in the bumpers are in still in place. You can also have an exhaust leak around the mufflers.