Removing Catalyst from a 1982,do I win HP?
Thread Starter
Melting Slicks
Joined: Jan 2001
Posts: 2,187
Likes: 0
From: Rotterdam
Removing Catalyst from a 1982,do I win HP?
It is legal here to remove the catalyst from my 1982,and make it a dual system.
Do I win any HP by just removing the catalyst,and how much will a dual system give me? (all using the stock headers,I will put on better ones in the future,but there are more important things to do with my money at the moment...... :( )
Do I win any HP by just removing the catalyst,and how much will a dual system give me? (all using the stock headers,I will put on better ones in the future,but there are more important things to do with my money at the moment...... :( )
Race Director
Joined: Sep 1999
Posts: 11,361
Likes: 383
From: Plano TX
Re: Removing Catalyst from a 1982,do I win HP? (Pete Z)
If you are still running the factory cat from 1982, yes, you will gain a noticable amount of power. The old cats from the early 80's were quite restricitve. New cats (late 80's and up) usually don't rob any noticable power. I've seen tests were newer cats only cost 2-4 hp on a 500 hp motor!
Race Director
Joined: Dec 1999
Posts: 16,945
Likes: 9
Re: Removing Catalyst from a 1982,do I win HP? (page62)
The inspecyion here is a joke. Just measuring CO values and if it's below 5% it's okay.
Pete, I ran a full 2&3/4"true dual system w/ borla's, no cats & full length headers. Never had a problem passing emissions.. remove the cat. It WILL sound a little like a tin can.
Marck
Pete, I ran a full 2&3/4"true dual system w/ borla's, no cats & full length headers. Never had a problem passing emissions.. remove the cat. It WILL sound a little like a tin can.
Marck
Le Mans Master
Joined: Feb 1999
Posts: 5,877
Likes: 1
From: Park Ridge IL
Re: Removing Catalyst from a 1982,do I win HP? (Pete Z)
When my '82 was "stock", the first thing I did was add tubular headers a true dual exhaust, without convertors. Honestly, I didn't notice any change. I didn't start seeing noticeable improvements in power to I reworked and opened up the manifold. With half the area of your intake runner blocked by the Crossfire manifold you're chasing your tail, in my opinion. In the case of the Crossfire motor, I'd start on the intake side first.
Race Director
Joined: Dec 1999
Posts: 16,945
Likes: 9
Re: Removing Catalyst from a 1982,do I win HP? (Monty)
Pete,
Monty is right.. the intake is really really restrictive. I have a lot of goodies lying around. You're always welcome to come & sniff around in the parts bin.
Marck
Monty is right.. the intake is really really restrictive. I have a lot of goodies lying around. You're always welcome to come & sniff around in the parts bin.
Marck
Thread Starter
Melting Slicks
Joined: Jan 2001
Posts: 2,187
Likes: 0
From: Rotterdam
Re: Removing Catalyst from a 1982,do I win HP? (Twinnie)
You can expect me one of these days Marck,but I'm waiting on next months pay check...... :lol:
But serious,I'm busy changing the basics now,(tires,filters,plugs,you name it) and after that I sure come over to your place,if only to see your engine! :cool:
:cheers:
But serious,I'm busy changing the basics now,(tires,filters,plugs,you name it) and after that I sure come over to your place,if only to see your engine! :cool:
:cheers:
Race Director
Joined: Nov 2000
Posts: 16,416
Likes: 1
From: NC,USA
Re: Removing Catalyst from a 1982,do I win HP? (Pete Z)
I started typing about if ya tune your carb and timing you will probably have more power then you had before...
Then i realised ya had an 82 with the computer controlled gizmoes and that stuff...
Not alot of help from me :jester
Then i realised ya had an 82 with the computer controlled gizmoes and that stuff...
Not alot of help from me :jester
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Le Mans Master
Joined: Aug 2000
Posts: 9,662
Likes: 7
From: Semper ubi, sub ubi
Cruise-In VI Veteran
Cruise-In VII Veteran
Re: Removing Catalyst from a 1982,do I win HP? (Pete Z)
PeteZ, you need to take Twinnie up on that offer, he knows the Crossfire just about as good as anyone. He probably has all sorts of go fast parts laying around in his junk bin! :D If anyone in the Netherlands can put some zoom in your Crossfire, Twinnie can.
