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High flow cat 

 

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 Post subject: Re: High flow cat
Posted: Wed Oct 31, 2012 10:43 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

I have a mag of a dead stock AU falcon,

Dyno stock
" with catback
" with catback and extractors
" with cat back, highflow cat and extractors

Il scan them tonight

from memory i think around 14rwkw from the full system

 

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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 11:15 am 
Getting Side Ways
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Age: 26

Posts: 789

Joined: 9th Dec 2011

Ride: S1 eb 5speed

Location: Coffs Harbour
NSW, Australia

s**t yea this will be good to have up on here.
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 Post subject: Re: High flow cat
Posted: Wed Oct 31, 2012 10:17 pm 
Getting Side Ways
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Age: 27

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Joined: 18th Oct 2006

Location: Adelaide
SA, Australia

waits in the corner in the line up
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 Post subject: Re: High flow cat
Posted: Wed Oct 31, 2012 10:26 pm 
Getting Side Ways
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Age: 49

Posts: 6467

Joined: 18th Dec 2006

Ride: 93 ED sedan

Power: 161 rwkw

Location: Rockhampton
QLD, Australia

You can make a std cat into a hiflow one, that is still legal in emissions......cut the cones off and manufacture longer cones.....that way the gases get to expand further utilizing all the cat monolith surfaces then.

 

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 Post subject: Re: High flow cat
Posted: Wed Nov 07, 2012 6:34 pm 
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

I found the mag, so stock was 97.7rwkw with the AU
Attachment:
File comment: With Catback
IMG_1199.JPG
IMG_1199.JPG [ 332.93 KiB | Viewed 39 times ]

Attachment:
File comment: With catback and extractors
IMG_1200.JPG
IMG_1200.JPG [ 331.12 KiB | Viewed 48 times ]

Attachment:
File comment: with catback, extractors and high-flow cat
IMG_1201.JPG
IMG_1201.JPG [ 335.24 KiB | Viewed 35 times ]

 

_________________

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: Fri Nov 09, 2012 8:15 am 
Stock as a Rock
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Age: 79

Posts: 179

Joined: 11th Sep 2010

Location: Mount Martha
VIC, Australia

Isn't a standard cat 400cpi? I put a 100cpi on my EF with only an AU Tickford motor, no difference. It made the exhaust note a bit tinny sounding too. I'd say no unless your running a powerful engine.

 

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 Post subject: Re: High flow cat
Posted: Fri Nov 09, 2012 6:01 pm 
Getting Side Ways
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Age: 26

Posts: 789

Joined: 9th Dec 2011

Ride: S1 eb 5speed

Location: Coffs Harbour
NSW, Australia

Cool thanks man, tho I doubt the 2kw would be noticeable.
And you could gain that advancing the timing. Or it could be the difference from a cool dry day and and a warm humid one.
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 Post subject: Re: High flow cat
Posted: Wed Nov 14, 2012 10:34 am 
Stock as a Rock
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Age: 26

Posts: 128

Joined: 19th Apr 2010

Ride: 1994 falcon

Location: Auckland
New Zealand

Hey guys i have a 92 falcon ute that ive put a 1993 xr6 engine and manual box in. im in nz, so we dont need to have cats on our cars, so im guessing i would be better off to get a full exhaust system without a cat when i get my extractors? i want it to sound nice but not overly loud, would 2 high flow mufflers be alright?

 

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 Post subject: Re: High flow cat
Posted: Wed Nov 14, 2012 3:38 pm 
Tyre Shredder
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Posts: 326

Joined: 12th Jun 2010

Ride: EL Fairmont

Location: Central Highlands
QLD, Australia

The biggest difference/improvement you will notice with a full exhaust system is when towing something heavy. Like a boat or a large fully loaded trailer (750+Kg).

 

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