In those early years of the use of catalytic converters there were some people who removed the catalytic converters and replaced them with a straight section of pipe to increase the performance of their cars.
Don't forget about the 1975 LTD with the 400 with the single cat on the driver's side and heat riser on the passenger side with both going into a single muffler off a Y pipe. Good engine restricted by weird exhaust configuration 😮!
When they stated to anti pollution control devices on cars in Australia All they did was disconect the device nothing was done not done no fines weore issued
I wonder if any automakers used bypass valves for the converters that only opened under full throttle. The cars would pollute more during sudden bursts of acceleration, but for most drivers, those are few and far between.
The 2V 1982 and 4V 1983-1985 5.0 Liter Capri and Mustangs with manual transmissions had primary light off catalysts on the passenger side, and a long bed cross over 3 way catalyst at the transmission. The bypass valve was operated to heat the Primary Light Off for five minutes, then open it after light off. So FoMoCo sort of used a reverse bypass to heat the Primary cat, then open it after it heated up.
yeah, inevitable idle misfires produce huge emissions. if even just the idling exhaust could be shunted to the single converter, benefits would be huge. A simple spring-loaded flap could do this. having the converter only treating half the exhaust during idle probably would not pass.
To balance exhaust back-pressure between cylinder banks, Ford installed an exhaust restrictor plate in the passenger side head pipe at the connection with passenger side exhaust manifold. This restrictor plate was just a piece of sheet metal with a hole approximately 1-1/8” (28mm), clamped between the manifold and 2” head pipe.😁❤️
My 88 F150 with the 5.0 V8 has two catalytic converters in tandem. Both exhaust banks come together before the first one and flows into the second one. If any of them fail, I'll have no choice but to modify the exhaust for a single high flow catalytic converter because I don't think that tandem setup is being produced anymore.
GM screwed everyone. Starting in 1975 when they started putting that catalytic converter on their cars, a lot of people would just cut them off. But GM redesigned the transmission crossmember to a single hump style to hinder adding dual exhaust. Also due to the catalytic converter, the F bodies (Camaro and Firebird) could no longer be ordered with GM’s turbo 400 transmission because it didn’t fit with the converter. This may explain why the 455 was dropped from the Firebird option sheet for most of 75. It did reappear mid 75 but required a 4 speed manual. This continued on through 76 after which the 455 was dropped all together.
In Australia we have emission laws are just a big joke and don't worry at All why don't they do emission tests in Australia or stick the hose Up the exhaust pipe ofy every car
The government need to keep their hands out of the automotive industry.
In those early years of the use of catalytic converters there were some people who removed the catalytic converters and replaced them with a straight section of pipe to increase the performance of their cars.
Don't forget about the 1975 LTD with the 400 with the single cat on the driver's side and heat riser on the passenger side with both going into a single muffler off a Y pipe. Good engine restricted by weird exhaust configuration 😮!
My sister had a 75 LTD with a 400 and 2 barrel carb
Boy was that thing slow
When they stated to anti pollution control devices on cars in Australia All they did was disconect the device nothing was done not done no fines weore issued
I wonder if any automakers used bypass valves for the converters that only opened under full throttle. The cars would pollute more during sudden bursts of acceleration, but for most drivers, those are few and far between.
The 2V 1982 and 4V 1983-1985 5.0 Liter Capri and Mustangs with manual transmissions had primary light off catalysts on the passenger side, and a long bed cross over 3 way catalyst at the transmission. The bypass valve was operated to heat the Primary Light Off for five minutes, then open it after light off. So FoMoCo sort of used a reverse bypass to heat the Primary cat, then open it after it heated up.
yeah, inevitable idle misfires produce huge emissions. if even just the idling exhaust could be shunted to the single converter, benefits would be huge. A simple spring-loaded flap could do this. having the converter only treating half the exhaust during idle probably would not pass.
Great video
To balance exhaust back-pressure between cylinder banks, Ford installed an exhaust restrictor plate in the passenger side head pipe at the connection with passenger side exhaust manifold. This restrictor plate was just a piece of sheet metal with a hole approximately 1-1/8” (28mm), clamped between the manifold and 2” head pipe.😁❤️
And valve timing was retarded slightly.
My 88 F150 with the 5.0 V8 has two catalytic converters in tandem. Both exhaust banks come together before the first one and flows into the second one. If any of them fail, I'll have no choice but to modify the exhaust for a single high flow catalytic converter because I don't think that tandem setup is being produced anymore.
GM screwed everyone. Starting in 1975 when they started putting that catalytic converter on their cars, a lot of people would just cut them off. But GM redesigned the transmission crossmember to a single hump style to hinder adding dual exhaust. Also due to the catalytic converter, the F bodies (Camaro and Firebird) could no longer be ordered with GM’s turbo 400 transmission because it didn’t fit with the converter. This may explain why the 455 was dropped from the Firebird option sheet for most of 75. It did reappear mid 75 but required a 4 speed manual. This continued on through 76 after which the 455 was dropped all together.
Torino used this one cat too on the 351 m/400.
In Australia we have emission laws are just a big joke and don't worry at All why don't they do emission tests in Australia or stick the hose Up the exhaust pipe ofy every car
I guess we can call this one of fords better ideas lol
I'm sorry dude I can't get past the fact that you can't pronounce certain words. It's pronounced cat-a-lit-ic not catalic.
At least hes not calling it a Cadillac converter 😂😂
Welcome to ford all our cars are pintose
Run more alcohol in fuel
Yah half the power 2x the qty required.... govt makes more money due to increased fuel required