Is it worth converting from Cali to Fed?
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Is it worth converting from Cali to Fed?
I've got a Cali-spec 97 Max SE, and while I could find many 5th gen owners talking about doing a conversion, I didn't see much for 4th gens. What would be involved in converting to Fed-specs? Has anyone done this and noticed results? I don't live in a state that does smog tests, so emissions are nothing to be worried about.
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Cali spec here too. I think the only major differences is the Y pipe and the swish valves in our intake manifolds. The swish valves only operate during warm up. After that there open all the time.
Our Y pipe has pre cats, but I think everybodys Y has them, we also have more sensors in our exhaust. I don't think that hinders performance at all. Just makes the car run cleaner.
Replace your stock Y with an aftermarket and leave the rest alone. You could disable your swish valves but I don't think it's worth it. Like I said, they only operate during warm up. Once your car is at operating temperature it runs just like any other fed spec engine.
Our Y pipe has pre cats, but I think everybodys Y has them, we also have more sensors in our exhaust. I don't think that hinders performance at all. Just makes the car run cleaner.
Replace your stock Y with an aftermarket and leave the rest alone. You could disable your swish valves but I don't think it's worth it. Like I said, they only operate during warm up. Once your car is at operating temperature it runs just like any other fed spec engine.
Thread Starter
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Joined: Aug 2002
Posts: 196
Originally posted by njmaxseltd
Cali spec here too. I think the only major differences is the Y pipe and the swish valves in our intake manifolds. The swish valves only operate during warm up. After that there open all the time.
Our Y pipe has pre cats, but I think everybodys Y has them, we also have more sensors in our exhaust. I don't think that hinders performance at all. Just makes the car run cleaner.
Replace your stock Y with an aftermarket and leave the rest alone. You could disable your swish valves but I don't think it's worth it. Like I said, they only operate during warm up. Once your car is at operating temperature it runs just like any other fed spec engine.
Cali spec here too. I think the only major differences is the Y pipe and the swish valves in our intake manifolds. The swish valves only operate during warm up. After that there open all the time.
Our Y pipe has pre cats, but I think everybodys Y has them, we also have more sensors in our exhaust. I don't think that hinders performance at all. Just makes the car run cleaner.
Replace your stock Y with an aftermarket and leave the rest alone. You could disable your swish valves but I don't think it's worth it. Like I said, they only operate during warm up. Once your car is at operating temperature it runs just like any other fed spec engine.
Originally posted by maximised
So is there any reason why I can't buy a Fed-spec y pipe?
So is there any reason why I can't buy a Fed-spec y pipe?
the stillen y pipe is a 2 piece design.. it you have a cali spec you do not use the second piece. federal spec connect the 2 together and install..
From 95 to 98 regarless of what spec, the y pipe was the same right? I know if you have a 99 cali spec and 99 fed spec, the y pipe is different. On budget's site, they only list y pipes for 95-99 fed specs, but if I have a 98 cali spec, the pipe should fit right?
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Joined: Aug 2002
Posts: 196
Originally posted by JsL
From 95 to 98 regarless of what spec, the y pipe was the same right? I know if you have a 99 cali spec and 99 fed spec, the y pipe is different. On budget's site, they only list y pipes for 95-99 fed specs, but if I have a 98 cali spec, the pipe should fit right?
From 95 to 98 regarless of what spec, the y pipe was the same right? I know if you have a 99 cali spec and 99 fed spec, the y pipe is different. On budget's site, they only list y pipes for 95-99 fed specs, but if I have a 98 cali spec, the pipe should fit right?
Originally posted by JsL
From 95 to 98 regarless of what spec, the y pipe was the same right? I know if you have a 99 cali spec and 99 fed spec, the y pipe is different. On budget's site, they only list y pipes for 95-99 fed specs, but if I have a 98 cali spec, the pipe should fit right?
From 95 to 98 regarless of what spec, the y pipe was the same right? I know if you have a 99 cali spec and 99 fed spec, the y pipe is different. On budget's site, they only list y pipes for 95-99 fed specs, but if I have a 98 cali spec, the pipe should fit right?
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Joined: Aug 2000
Posts: 2,069
........... what would i need to do a complete conversion ......
would it be pheasible to say that if i changed the ECU over, and the front lower manifold... aka the swirl valves.. that i would in effect have a fed spec car ?!?! anyone ?
dont tell me how much it will cost.
i hope my logic is correct.
would it be pheasible to say that if i changed the ECU over, and the front lower manifold... aka the swirl valves.. that i would in effect have a fed spec car ?!?! anyone ?
dont tell me how much it will cost.
i hope my logic is correct.
Originally posted by Stillnmax
........... what would i need to do a complete conversion ......
would it be pheasible to say that if i changed the ECU over, and the front lower manifold... aka the swirl valves.. that i would in effect have a fed spec car ?!?! anyone ?
dont tell me how much it will cost.
i hope my logic is correct.
........... what would i need to do a complete conversion ......
would it be pheasible to say that if i changed the ECU over, and the front lower manifold... aka the swirl valves.. that i would in effect have a fed spec car ?!?! anyone ?
dont tell me how much it will cost.
i hope my logic is correct.
and stop using logic.. you might hurt yourself..
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