Technical Tips > Pre 84
No cats
Brutus:
There is one thing that you should all be aware of and that is without the cats, the unleaded fuel is putting out more carcinogens than any leaded fuel ever did!
Btw, I'm not trying to preach, just inform. I don't run cats either.
Vette Obsessed:
I don't really want to speak in the for or against on this topic. There are performance advantages to be had but also laws that will be broken if you pursue this route for greater noise/performance. What I do want to say is that in my opinion I think everybody here should be very careful what they say here as this is an open forum and ANYBODY can look in...
The fines for individuals and businesses that tamper with emissions controls and catalytic convertors are far from cheap. I'm not sure what the laws applying to the removal of cats on pre 1986 vehicles are but erring on the side of caution may be the best way to go as far as posting here is concerned.
(Takes "Administrator" cap off)It may be safer for some to edit their posts or keep things to e-mail in light of the legalities involved.(Puts "Administrator" cap back on)
I don't want to preach but I'm sure nobody wants a visit from the RTA or EPA.
:)
77CVT:
All unleaded fuel is, is leaded fuel without lead! So I don't believe the argument that unleaded fuel puts out more "bad stuff" than leaded. ALL fuel is highly carcinogenic so try not to breath it in when filling up.
If it is not ok to run an unleaded car w/o cats, then why do they tell us it's ok to run some pre '86 cars with it? I has to be better than that LRP crap! That has so much magnesium in it it's not funny. :b4
Cats are only there to react with some gases and change them into another gas (there are 3 I think but can't remember which). as I said earlier, they don't even work until hot.
I don't think a muffler shop can legally remove a cat without replacing it with another.
Cheers
Adam:
No need to worry, I'm sure were all talking about replaceing cats.
Adam
--- Quote ---Originally posted by Vette Obsessed
I don't really want to speak in the for or against on this topic. There are performance advantages to be had but also laws that will be broken if you pursue this route for greater noise/performance. What I do want to say is that in my opinion I think everybody here should be very careful what they say here as this is an open forum and ANYBODY can look in...
The fines for individuals and businesses that tamper with emissions controls and catalytic convertors are far from cheap. I'm not sure what the laws applying to the removal of cats on pre 1986 vehicles are but erring on the side of caution may be the best way to go as far as posting here is concerned.
(Takes "Administrator" cap off)It may be safer for some to edit their posts or keep things to e-mail in light of the legalities involved.(Puts "Administrator" cap back on)
I don't want to preach but I'm sure nobody wants a visit from the RTA or EPA.
:)
--- End quote ---
Vette Obsessed:
Without getting into a lengthy discussion about pipe diameter relative to engine output/capacity and potential torque loss, I understand a TRUE twin pipe system will be louder and have a more authoritative tone than a system that merges dual pipes into one collector at any point.
It will cost more though (there is always a catch isn't there). :(
A crossover tube (AKA a h-pipe) located (in general) as far forward in the system as possible can be used to minimise reasonance and possibly gain a little more power with a twin system.
I would imagine that a twin 2" system would not be oversized for your motor - I'll check my little chart when I get home...
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version