Cats and boost
Apr 14, 2008 | 02:44 PM
#2
Recently I tried a Jegs catless y pipe on my Edelbrock shorties with my Corsa cat back and it sound way to loud and raspy.So I put my stock y pipe back on.I'm thinking of putting the Jegs pipe back on but add a 3" cat in front of my corsa.This is on a boosted D1SC 6.0 with a cam.
Apr 14, 2008 | 08:53 PM
#3
The metalic style cats are better for FI. I have some magnaflow metalic spun cats on mine. One on each side of a pacesetter Y. I figured they would quiten my long tubes down some. It really didnt it was still loud as hell with my corsa. I traded my sport for a touring and still put in a 4" round x 16" long magnaflow in to cut down on the rasp.
Apr 16, 2008 | 07:44 AM
#6
I tried ceramic core cats and heavy duty metalic substrate cats. The ceramic core lasted about 6K and the metalic ones lasted about the same. Cats just do not like the rich atmosphere of a FI set-up. If you run leaner than I do, then they may have a chance. I like to run on the rich side (11.5). Here is a picture of one of my high priced 3" metalic substrate cats after about a year, I often check the cats for signs of failure and found this one just in time:
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Apr 17, 2008 | 08:15 AM
#10
Mine got a warm welcome from a 1" boring bit and a Dewalt 18V cordless. I am done with cats and the possibility of damaging my motor.
FYI, the ceramic cats can be chipped away with a long screw driver however the metallic substrate ones will be a real PITA. It took me 1 hour to do one BUT only 5 minutes to gut the 2nd after I learned a trick. Take your boring bit and drill into the substrate about 75% through and remove your bit. Fold one layer of the substrate across the hole you just drilled and then insert your bit as far in as possible. Turn your drill in reverse and the bit should grab the folded layer and begin to "unwind" the substrate. I then simply pulled the bit out of the cat as the substrate was winding around the bit. It looked like a large chinese Yo-Yo when it was all removed
FYI, my metal substrate 3" cats cost me $325 a piece.
You can't say I didn't try...
FYI, the ceramic cats can be chipped away with a long screw driver however the metallic substrate ones will be a real PITA. It took me 1 hour to do one BUT only 5 minutes to gut the 2nd after I learned a trick. Take your boring bit and drill into the substrate about 75% through and remove your bit. Fold one layer of the substrate across the hole you just drilled and then insert your bit as far in as possible. Turn your drill in reverse and the bit should grab the folded layer and begin to "unwind" the substrate. I then simply pulled the bit out of the cat as the substrate was winding around the bit. It looked like a large chinese Yo-Yo when it was all removed
FYI, my metal substrate 3" cats cost me $325 a piece.
You can't say I didn't try...
