Fordmods Logo

Lpg and cat converters 

 

Page 1 of 1 [ 9 posts ] 

 
 Post subject: Lpg and cat converters
Posted: Mon Apr 02, 2007 1:19 pm 
Getting Side Ways
Offline
User avatar

Age: 42

Posts: 577

Joined: 5th Nov 2004

Gallery: 1 images

Ride: EL XR6 5spd

I was told recently not to use a ceramic core cat converter with the combination of headers and lpg but rather get a steel core cat..

Anyone know whats in the standard one?

 

_________________

EL XR6 5spd

Top
 Profile  
 
 
Posted: Mon Apr 02, 2007 11:17 pm 
Stock as a Rock
Offline

Age: 54

Posts: 156

Joined: 21st Oct 2006

Location: Morwell
VIC, Australia

As far as it goes, a cat does nothing with LPG... however, according to the ADR you need it on a vehicle post Jan86, I`d go the cheapest possible option suited to your needs...(I could say don`t bother but that`d be irresponsible) :wink:

JAIKAI
Top
 Profile  
 
 
Posted: Tue Apr 03, 2007 1:42 am 
Getting Side Ways
Offline
User avatar

Age: 42

Posts: 577

Joined: 5th Nov 2004

Gallery: 1 images

Ride: EL XR6 5spd

Well I still need the cat being a dual fuel system..

The main concern here is the extra heat of headers combined with the extra heat of running gas causes ceramic cats to deathify rather than any emissions reasons.

So a dead (melted/cracked etc) cat is mainly going to be a concern for flow.

 

_________________

EL XR6 5spd

Top
 Profile  
 
 
Posted: Tue Apr 03, 2007 8:53 am 
Stock as a Rock
Offline

Age: 54

Posts: 156

Joined: 21st Oct 2006

Location: Morwell
VIC, Australia

As I said, get the cheapest one that suits your needs, and you only said gas, not dual fuel...get a standard one and you`re set to go, legally too. if it`s a falcon abd you want a bigger system, use a VN cat, bigger pipe, plenty ppl using them on Xseries with 2.5" pipes

JAIKAI
Top
 Profile  
 
 
Posted: Tue Apr 03, 2007 9:22 am 
Getting Side Ways
Offline
User avatar

Posts: 2644

Joined: 6th Nov 2004

Gallery: 8 images

Ride: 2007

Location: Mount Annan
NSW, Australia

The factory LPG system for E series purposely richens the mixture under deceleration and a few other conditions to lengthen the life of the CAT. From that it would seem that a straight O2 loop system could be detremental to the life of the CAT.

 

_________________

BF Fairmont Ghia Series II update.
GQ XR6T ghia patrol.

,======o00o
//__|__|_,\_____\,___
|_/--\'_|'__|_/--\_[]IIII[]
_( o ) )_____( o ) )=o=) )__

Top
 Profile  
 
 
Posted: Thu Apr 05, 2007 2:23 pm 
Getting Side Ways
Offline
User avatar

Age: 38

Posts: 886

Joined: 17th Aug 2005

Gallery: 24 images

Ride: VZ SS 6Ltr ute, Honda VFR800

Location: Melbourne
VIC, Australia

Have you ever thought of just gutting the standard cat and putting a 2.5" pipe through the middle of it???

I've "heard from a friend" that it makes the car sound better and flows really good to :)

 

_________________

My Cars
2006 VZ SS cammed 6Ltr ute 295rwkW
2004 BA XR6T - 290rwkW 12.5@113mph ( SOLD )
1996 EFII Fairmont - 130rwkW 15.5@91mph ( SOLD )

Top
 Profile  
 
 
Posted: Thu Apr 05, 2007 2:48 pm 
Getting Side Ways
Offline
User avatar

Age: 42

Posts: 577

Joined: 5th Nov 2004

Gallery: 1 images

Ride: EL XR6 5spd

Im actually one of those minorites that thinks a working cat converter is an important thing. I still probably use petrol 1/4 of the time after all..

 

_________________

EL XR6 5spd

Top
 Profile  
 
 
Posted: Thu Apr 05, 2007 9:40 pm 
Getting Side Ways
Offline
User avatar

Age: 52

Posts: 3531

Joined: 5th Nov 2004

Gallery: 25 images

Ride: 93 Maverick LWB/S2 LWB Delica

Power: 75 rwkw

Location: uoʇǝlƃuıs lʍoq ʇsnp
NSW, Australia

{USERNAME} wrote:
The factory LPG system for E series purposely richens the mixture under deceleration and a few other conditions to lengthen the life of the CAT. From that it would seem that a straight O2 loop system could be detremental to the life of the CAT.


Did you get that info from the Tickford LPG supplement?
To me that sounds wrong as that may introduce unburnt LPG into the converter, that in turn WILL destroy it if it happens for to long.

 

_________________

93 Ford Maverick LWB automatic petrol guzzler (gets stuck where Deli doesn't, big pumpkins :evil:)
97 S2 Mitsubishi Delica LWB (off the road getting v8 transplant)

Top
 Profile  
 
 
Posted: Thu Apr 05, 2007 10:26 pm 
Getting Side Ways
Offline
User avatar

Age: 42

Posts: 577

Joined: 5th Nov 2004

Gallery: 1 images

Ride: EL XR6 5spd

Yea that kinda behaviour sounds like it would promote backfiring as well...

 

_________________

EL XR6 5spd

Top
 Profile  
 
Display posts from previous:
Sort by  
 Page 1 of 1  [ 9 posts ] 

Who is online

Users browsing this forum: No registered users and 14 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

 

 

It is currently Tue Dec 24, 2024 10:16 am All times are UTC + 11 hours

 

 

(c)2014 Total Web Solutions Australia - Australian Web Hosting and Domain Names