1988 Mustang catalytic removal: Yes or no?
04-12-2011, 11:46 AM
#14
CMOC Rookie
Join Date: Oct 2010
Location: Colborne
Posts: 34
Years ago I did my 79 , took the cat off, and punched the guts out of them , and put them back on,, at least if the shell is there, all the smog police can do is look under, and if they where to test,, you didnt know they where not working, Unless they get superman to look inside, your ok.. heard of one guy the cops where trying to get off the road, and used the emission thing.. he set up the carb to run pure methanol, had it tested, no cats and passed, then reset to run gas,, really pissed off the cops..lol
04-13-2011, 03:35 AM
#16
Years ago I did my 79 , took the cat off, and punched the guts out of them , and put them back on,, at least if the shell is there, all the smog police can do is look under, and if they where to test,, you didnt know they where not working, Unless they get superman to look inside, your ok.. heard of one guy the cops where trying to get off the road, and used the emission thing.. he set up the carb to run pure methanol, had it tested, no cats and passed, then reset to run gas,, really pissed off the cops..lol
06-30-2011, 04:20 AM
#19
CMOC Veteran
Join Date: Dec 2004
Location: Lidsville, Ontario, Canada
Posts: 407
I have some track data from my old 1989 Mustang LX. I had a totally stock longblock TB to pan, and had equal shorties, stock cats, and magnaflow cat back. Other mods were lightening up the car, alum DS, 3.73s, slicks, skinnies, suspension work, UD pulleys, 16* timing, K&N w/ home made ram air, by passbelt for ps and smog, everyone knows the stock 12s drill.....
Anyways, I was running 13.0-13.11 all day at 102.7 almost 103 MPH... everyone kept saying lose the stupid stock H and 12s were mine. I put an off road X on, NO other changes. TQ was def down, might have gain 5-10 Hp somewhere narrow up top, but car ran 13.2-13.3 all day and one 13.19 bouncing the car off he limiter to muster a 1.77 60 foot...
Moral of the story here, if stock longblock and cam, Ford did a decent ob actually on the stock mandrel bent 2 1/4" dual system, the muffs are restrictive, followed by the stock headers, and NO the design of them is good you just have to port out the welds INSIDE somewhat, buddy of mine did crack a 12.98 102 MPH on stock ported headers and similar setup as mine above with stock H.
Once you do heads and cam it's a different thing. But for 225-250 HP... all you gain is sound.
Anyways, I was running 13.0-13.11 all day at 102.7 almost 103 MPH... everyone kept saying lose the stupid stock H and 12s were mine. I put an off road X on, NO other changes. TQ was def down, might have gain 5-10 Hp somewhere narrow up top, but car ran 13.2-13.3 all day and one 13.19 bouncing the car off he limiter to muster a 1.77 60 foot...
Moral of the story here, if stock longblock and cam, Ford did a decent ob actually on the stock mandrel bent 2 1/4" dual system, the muffs are restrictive, followed by the stock headers, and NO the design of them is good you just have to port out the welds INSIDE somewhat, buddy of mine did crack a 12.98 102 MPH on stock ported headers and similar setup as mine above with stock H.
Once you do heads and cam it's a different thing. But for 225-250 HP... all you gain is sound.
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