Sparks and Molten material out of exhaust?
10-27-16, 09:26 AM
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Sparks and Molten material out of exhaust?
i just had a high flow cat and muffler put on my Rx-7 to go with my racing beat headers . I took it for its first test drive last night and when I opened it up for the first time a TON of sparks flew out of the exhaust. I turned around and got out to look at them as they were still glowing red hot in the road. They seem to be some sort of glassy grey rock. Anyone know what could be up? I'll grabbed a couple of the rocks and I'll post a picture when I get home today.
10-27-16, 10:03 AM
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10-27-16, 11:07 AM
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Sounds like your high flow cat couldn't handle your rotary or your rotary tune.
A stock FD cat is high flow and metal substrate. See if you can pick one up. Otherwise you need a $durable cat$ and maybe a more cat friendly tune.
My TII did the same thing when I put mufflers on it except it would should molten bits of SS muffler packing out on the road to glow behind me...
Guess that is why the 100lb Mazda Competition muffler used whole lava rocks (not wool) for muffler packing.
A stock FD cat is high flow and metal substrate. See if you can pick one up. Otherwise you need a $durable cat$ and maybe a more cat friendly tune.
My TII did the same thing when I put mufflers on it except it would should molten bits of SS muffler packing out on the road to glow behind me...
Guess that is why the 100lb Mazda Competition muffler used whole lava rocks (not wool) for muffler packing.
10-27-16, 11:23 AM
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Sounds like your high flow cat couldn't handle your rotary or your rotary tune.
A stock FD cat is high flow and metal substrate. See if you can pick one up. Otherwise you need a $durable cat$ and maybe a more cat friendly tune.
My TII did the same thing when I put mufflers on it except it would should molten bits of SS muffler packing out on the road to glow behind me...
Guess that is why the 100lb Mazda Competition muffler used whole lava rocks (not wool) for muffler packing.
A stock FD cat is high flow and metal substrate. See if you can pick one up. Otherwise you need a $durable cat$ and maybe a more cat friendly tune.
My TII did the same thing when I put mufflers on it except it would should molten bits of SS muffler packing out on the road to glow behind me...
Guess that is why the 100lb Mazda Competition muffler used whole lava rocks (not wool) for muffler packing.
10-27-16, 11:50 AM
#6
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Rotary flow ALWAYS finds a way...
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10-27-16, 12:56 PM
#8
You probably melted the cat. Hopefully it hollowed out rather than clogging. But yes, you are pretty much running without a cat now I would imagine. This is why I just bought the racing beat presilencer so It would be a bolt in affair and I could do it in my driveway.
10-27-16, 10:20 PM
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