Catalytic converters - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
Ford Forum Ford Forum

» Auto Insurance
» Featured Product
ยป Wheel & Tire Center

Go Back   Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > The Garage - Tech Forums > General Tech
Register Home Forum Active Topics Photo Gallery Auto Loans Garage Mark Forums Read Auto Escrow

General Tech Have a question that is not covered by one of the other categories? This is the forum for all other items not specifically covered in other categories.

FordForums.com is the premier Ford Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 11-20-2002, 04:50   #1 (permalink)
Registered User
 
Join Date: Nov 2002
Location: Brisbane
Posts: 44
eek Catalytic converters

Have any of you guys done any mods to your catalytic converters, like....maybe....knocking the guts out of them? Not really liked by the politicly correct amoung us....but just wondering if it makes a difference?

Bundy On!!
BundyBlackXR8 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 11-20-2002, 05:06   #2 (permalink)
Registered User
 
EB2Ghia's Avatar
 
Join Date: Jul 2002
Location: Canberra
Posts: 695
This is a very touchy question to ask because people dont often like talking about this sorta thing because of the whole 10,000 dollar tampering fine you might get. anyhow my mate did it to his eb when his cat shot itself, it made the car a bit louder, gave the exhaust a differant note and gave the slightest bit more grunt, the greatest thing he reackons is that he can get a few more k's out of the tank.
__________________
EB2GHIA Long Gone


1973 XB Coupe Fairmont 302, koni shocks, lovell super low fronts, extra leaf and reset leaf spings, dual exhaust, advance headers. Resprayed Vivid Blue Pearl. 17x8 & 17x10 inch FR Simmons.
EB2Ghia is offline   Reply With Quote
Old 11-20-2002, 05:12   #3 (permalink)
Registered User
 
Join Date: Nov 2002
Location: Brisbane
Posts: 44
yeah, probably better off spending the 10 grand on some more......lets say "legal" mods lol
BundyBlackXR8 is offline   Reply With Quote
Old 11-20-2002, 06:35   #4 (permalink)
Registered User
 
Martin's Avatar
 
Join Date: Feb 2001
Location: NSW/ACT
Posts: 3,023
A good condition Cat only provides around 15% of the total restriction in a exhaust, the other 85% is the pipe size, mufflers, bends etc.

So lets say you run open headers and gain 30hp, only 4.5hp of that would be attributed to removing the cat.


Considering the amount of good the Cat does, and the fines associated with not having one, the small gain in Hp you may get isnt really worth it

There are easier ways to make Hp and still be street legal....
__________________
1993 ED XR6 M5 (1 of 329)
Polynesian Green
Turbo on the way!!
1993 EBII Fairmont (Now wrecking, PM if you want any parts)
1988 Nissan R31 Skyline
Martin is offline   Reply With Quote
Old 11-20-2002, 14:27   #5 (permalink)
Two SC 61's = trouble
 
ebxr8240's Avatar
 
Join Date: Jul 2001
Location: Penrith,nswAus/Morrinville.NZ
Age: 60
Posts: 6,360
What Martin said is correct.The last thing I moded on my car was the cats after stg 3 ported Twisted Wedge heads,inlet, cam, etc etc. Believe me the std cats flow better than they look,hardly an improvement going to high flows.So a rather std engine would hardly benefit.
Besides as rev heads we want to keep the green house affect at bay, drive and live healthier..Or we'll be forced to drive electric vehicles...etc...
__________________
Don't be afraid to try something new. Remember, amateurs built the Ark...Professionals built the Titanic!
.
Tuned & maintained by "Peppertree Perfmormance". Dart block, Scat 4340 steel crank, Custom C.P pistons.Oliver rods.. Mal Wood twin plate clutch.. Twin SC61/2's,482 rwkw/ 645 rwhp..
Passengers, myocardial infarction material..
R.I.P Possum...
ebxr8240 is offline   Reply With Quote
Old 11-20-2002, 20:52   #6 (permalink)
Ex Member
 
Fairlane Boy's Avatar
 
Join Date: Nov 2001
Location: Perth
Posts: 717
Re: Catalytic converters

Quote:
Originally posted by BundyBlackXR8
Have any of you guys done any mods to your catalytic converters, like....maybe....knocking the guts out of them? Not really liked by the politicly correct amoung us....but just wondering if it makes a difference?

Bundy On!!
Yes it makes quite a bit of difference high up in the rev range, and on my 96 v8 i get an extra 50km per tank from having none. But beware, on the v8 its about 3 times as loud, and the engine dosent sound too good when theres gasses whistling through hollow cats at 10 million litres per second.

I recomend you just get better/bigger ones, i hate the noise factor.
__________________
Best wishes
Fairlane Boy is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > The Garage - Tech Forums > General Tech



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Catalytic Converter (2 of them? Are they necessary?) KingKurt Ford Escort | Ford Laser | Ford TX3 | Ford Sierra | Mercury Capri 9 08-30-2003 20:55
mmm grinding Catalytic converter barry_v General Tech 4 07-02-2003 15:44
Stall Converters DansEdgli General Tech 3 09-24-2002 11:28
Stall Converters copscatchme General Tech 4 09-23-2002 09:27
AU cat converters and PULP aurora General Tech 5 07-03-2002 03:24

Powered by vBadvanced CMPS v3.2.2

All times are GMT -7. The time now is 23:49.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.6.0
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.