How much HP doe a cat rob?
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From: Faaar East Coast, USA
Re: How much HP does a cat rob? (HT Chaplin)
yeah it robs a few ponies but also you want a little back pressure.....I dont think a straight through test pipe or gutted cat is the way to go. Get a catco or other performance cat. Save the ozone too 
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From: Tucson, AZ
Re: How much HP does a cat rob? (HT Chaplin)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by HT Chaplin »</TD></TR><TR><TD CLASS="quote">Does a cat really rob that much HP?</TD></TR></TABLE>No.
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From: Eindhoven, Netherlands
Re: How much HP does a cat rob? (HT Chaplin)
Back pressure doesn't actually help a car's performance in any way...the less the better. I'm sure a straight pipe would yield more power.
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From: Elsinore, ca, united states
Re: How much HP does a cat rob? (Kamin)
it actually depends. my car was on the dyno with full exhaust,the next pass we took a sawzall and cut it off before the cat and it gained 13hp and 5tq.
I dont know exactly how much of it was the cat vs. the rest of the exhaust(2.5")
I dont know exactly how much of it was the cat vs. the rest of the exhaust(2.5")
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From: Tucson, AZ
Re: How much HP does a cat rob? (Lsos)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Lsos »</TD></TR><TR><TD CLASS="quote">Back pressure doesn't actually help a car's performance in any way...the less the better. I'm sure a straight pipe would yield more power.</TD></TR></TABLE>
look up scavenging. it happens during overlap. backpressure is needed for a street car, period.
look up scavenging. it happens during overlap. backpressure is needed for a street car, period.
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From: Mill Creek, WA, USA
Re: How much HP does a cat rob? (crexer)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by crexer »</TD></TR><TR><TD CLASS="quote">Save the ozone too.</TD></TR></TABLE>
The cat has very minor impact on emissions.
The cat has very minor impact on emissions.
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From: corner of bumfuck and you got a purty mouf
Re: How much HP does a cat rob? (HT Chaplin)
buy a hi-flow cat from shmotorsports.com sound great and cost bout 100 bucks keep stock one for emissions test or get a h2o sensor simulator
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From: Eindhoven, Netherlands
Re: How much HP does a cat rob? (Kamin)
Everyone keeps saying how backpressure is necessary. Can someone, anyone, explain to me exactly why?
If no one can provide a proper explanation...well, I must say you're all talking out of your asses....
If no one can provide a proper explanation...well, I must say you're all talking out of your asses....
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From: u.k
when i took my decat/test pipe and replaced with cat first thing i noticed was slight loss in throttle response. cat does rob you of power but tiny amount.
way i look at it is you can spend £500 on exhaust and get 5 bhp. spend £50 on a test pipe and get 1 bhp. similar value for money/per bhp
way i look at it is you can spend £500 on exhaust and get 5 bhp. spend £50 on a test pipe and get 1 bhp. similar value for money/per bhp
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