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High flow cat 

 

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 Post subject: High flow cat
Posted: Thu Oct 25, 2012 10:38 pm 
Parts Gopher
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Age: 26

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Ride: 1992 falcon eb xr6

Location: daylesford
VIC, Australia

Is worth changing the stock cat with high flow will the be much rise in power I'm already runing extractors and 2.5 inch zorst? And cam

 

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1992 falcon eb manual xr6 minor head work j3 chip tuned to a el xr6 manual ecu pushing 130rwkw

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 Post subject: Re: High flow cat
Posted: Thu Oct 25, 2012 10:57 pm 
Smokin em up
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Joined: 24th Aug 2012

Ride: 1987 telstar/2004 BA XR6 5spd

Location: Newcastle
NSW, Australia

some one here has said in a thread that the std cat and exhaust flow fine with a mild cam...when i put my hiflo cat on my car i didnt feel any differance in power, im pretty sure the std cat is pretty hi flo anyway, im pretty sure it's around 200cpi
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 Post subject: Re: High flow cat
Posted: Thu Oct 25, 2012 11:09 pm 
Parts Gopher
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Age: 26

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Joined: 11th Mar 2012

Ride: 1992 falcon eb xr6

Location: daylesford
VIC, Australia

So realy it's just a waist of time and money?

 

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1992 falcon eb manual xr6 minor head work j3 chip tuned to a el xr6 manual ecu pushing 130rwkw

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 Post subject: Re: High flow cat
Posted: Fri Oct 26, 2012 8:24 am 
Fordmods Junkie
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Joined: 17th May 2005

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Ride: EL Fairmont, VFR400 racer

Power: 144 rwkw

Location: Melbourne
VIC, Australia

bryce67 wrote:
So realy it's just a waist of time and money?


Well depends what you mean by that. If your catalytic converter is rooted (old and not doing it's job) then it would be ideal to replace it...stock or hi flow it doesn't matter.

If your cat is good and you want performance, it is not necessary. Should still get good flow out of stock, but it is best to get the cat modified with 2.5" outlets.

 

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phongus = Post whore 2006
EL XR6 motor, EL ECU + J3 chip, WADE 1673 Camshaft, 3" S/S intake, Pacy 4480, 2.5" Hi flow cat, 2.5" Lukey exhaust.
Max Power = 144.6 rwkw (03/05/2008)

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 Post subject: Re: High flow cat
Posted: Mon Oct 29, 2012 3:12 pm 
Getting Side Ways
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Joined: 19th Feb 2007

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Ride: 98 EL Futura

Power: 199 rwkw

Location: Lilydale
VIC, Australia

you will gain 2-3rwkw with a highflow cat

 

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EL Futura: CVE head, Wolf V500, ICE Ignition and Coil, 36lb injectors, Walbro 255lb, Paci comps, 3" exhaust, T5, Harrop Truetrac with 3.9s. Now with 198.9rwkw, (~185rwkw and 13.80 @99.1mph) with more power to come

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 Post subject: Re: High flow cat
Posted: Wed Oct 31, 2012 8:21 am 
Getting Side Ways
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Ride: S1 eb 5speed

Location: Coffs Harbour
NSW, Australia

GeZza200 wrote:
you will gain 2-3rwkw with a highflow cat

s**t.
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 Post subject: Re: High flow cat
Posted: Wed Oct 31, 2012 9:14 am 
Getting Side Ways
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Ride: 98 EL Futura

Power: 199 rwkw

Location: Lilydale
VIC, Australia

Pakrat wrote:
GeZza200 wrote:
you will gain 2-3rwkw with a highflow cat

s**t.


?

 

_________________

EL Futura: CVE head, Wolf V500, ICE Ignition and Coil, 36lb injectors, Walbro 255lb, Paci comps, 3" exhaust, T5, Harrop Truetrac with 3.9s. Now with 198.9rwkw, (~185rwkw and 13.80 @99.1mph) with more power to come

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 Post subject: Re: High flow cat
Posted: Wed Oct 31, 2012 9:21 am 
Getting Side Ways
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Bull s**t
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 Post subject: Re: High flow cat
Posted: Wed Oct 31, 2012 9:23 am 
Getting Side Ways
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Ride: 98 EL Futura

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Location: Lilydale
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Pakrat wrote:
Bull s**t


ohhh..... well they do.

 

_________________

EL Futura: CVE head, Wolf V500, ICE Ignition and Coil, 36lb injectors, Walbro 255lb, Paci comps, 3" exhaust, T5, Harrop Truetrac with 3.9s. Now with 198.9rwkw, (~185rwkw and 13.80 @99.1mph) with more power to come

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 Post subject: Re: High flow cat
Posted: Wed Oct 31, 2012 9:26 am 
Getting Side Ways
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Age: 26

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Ride: S1 eb 5speed

Location: Coffs Harbour
NSW, Australia

So if I get any old stock standard falcon, and put a high flow cat on it I'll get 4rwkw?
Don't think so.
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 Post subject: Re: High flow cat
Posted: Wed Oct 31, 2012 9:27 am 
Getting Side Ways
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Age: 29

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Ride: 98 EL Futura

Power: 199 rwkw

Location: Lilydale
VIC, Australia

no, if you have a full exhaust system and change the cat to a highflow you will gain 2-3rwkw

 

_________________

EL Futura: CVE head, Wolf V500, ICE Ignition and Coil, 36lb injectors, Walbro 255lb, Paci comps, 3" exhaust, T5, Harrop Truetrac with 3.9s. Now with 198.9rwkw, (~185rwkw and 13.80 @99.1mph) with more power to come

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 Post subject: Re: High flow cat
Posted: Wed Oct 31, 2012 9:38 am 
Getting Side Ways
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Age: 26

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Joined: 9th Dec 2011

Ride: S1 eb 5speed

Location: Coffs Harbour
NSW, Australia

Maybe if you're old cat had collapsed
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 Post subject: Re: High flow cat
Posted: Wed Oct 31, 2012 9:47 am 
Getting Side Ways
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Age: 29

Posts: 2563

Joined: 19th Feb 2007

Gallery: 21 images

Ride: 98 EL Futura

Power: 199 rwkw

Location: Lilydale
VIC, Australia

Il post up some dyno sheets tonight

 

_________________

EL Futura: CVE head, Wolf V500, ICE Ignition and Coil, 36lb injectors, Walbro 255lb, Paci comps, 3" exhaust, T5, Harrop Truetrac with 3.9s. Now with 198.9rwkw, (~185rwkw and 13.80 @99.1mph) with more power to come

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 Post subject: Re: High flow cat
Posted: Wed Oct 31, 2012 10:24 am 
Getting Side Ways
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Age: 26

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Joined: 9th Dec 2011

Ride: S1 eb 5speed

Location: Coffs Harbour
NSW, Australia

I would like to see them, if indeed said gains are made I might just invest in one.
This is a dyne before cat but with full exhaust and then with cat replaced?
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 Post subject: Re: High flow cat
Posted: Wed Oct 31, 2012 10:37 am 
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Ride: ford falcon au3 xr8

Location: a shit suburb in sydney
NSW, Australia

imo, on a dead stock engine it will make no gain at all..
i just took off the factory exhaust on my au ghia and fitted pacemaker extractors, 2 1/2" high flow cat and redback 2 1/2 system and made no gain in performance..
if anything made the engine less punchy off the line..
ive done exhaust mods to every car ive owned, but always done it bit by, catback first, then extractors a few weeks or months later and cat last..ive never really done a dyno comparison but this time it was all done at once and i think its all a placebo effect..lol..
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