Cat question
#1
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Cat question
I have a 93 5 speed RX7 twin turbo and I had recently put on a down pipe. What a difference in power. I was told not to put on a mid pipe becuase of the boost creep. How do we know if the OEM Cat is still functional? I had a 2000 prelude with a high flow converter installed. One day I found some type of honey comb looking thing coming out of my muffler. I took it to a muffler shop and the cat had blew out. That was odd for a 3 year old cat. The cat in my RX7 is oem. Do these cats over blow out? How do we know we have boost creep. Also wondering If I purchase a aftermarket exhaust with a silencer will that help on restrictions? Thanks
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1. Get a boost gauge.
2. Repeat, get a boost gauge.
The cat normally doesn't fail unless the pre-cat fails and takes it out. If you actually read about boost creep, you would know if you had it....
Running a silencer on an aftermarket exhaust is pointless. It will flow less than the stock exhaust.
Repeat, get a boost gauge.
2. Repeat, get a boost gauge.
The cat normally doesn't fail unless the pre-cat fails and takes it out. If you actually read about boost creep, you would know if you had it....
Running a silencer on an aftermarket exhaust is pointless. It will flow less than the stock exhaust.
Repeat, get a boost gauge.
#3
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Simple test for your cat, if your idle is right, and your air pump works, stand behind your car for a few seconds, if you find your self choking or getting queezy, good chance your cat is bad.
I saw an obvious improvement with a good cat.
I take it you dont have emissions testing in regina?
I saw an obvious improvement with a good cat.
I take it you dont have emissions testing in regina?
#4
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DP is one of two of the most important mods. Add some header wrap or have it heatcoated to lessen underhood heat. The second/other mod, as rynberg indicated, is a boost gauge. Good advice on avoiding the midpipe.
If you have a good 10-8-10 boost pattern and your eyes aren't watering while standing behind the car, the cat is OK.
If you have a good 10-8-10 boost pattern and your eyes aren't watering while standing behind the car, the cat is OK.
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