questions about my 87' Firebird
questions about my 87' Firebird
hey i have a few questions.
i have a 1987 pontiac firebird v6 2.8 mpfi, i would like to know if eliminating the catalitic converter would increase horepower in my car, if so how significant ? also if eliminating the air filter and putting in a cold air intake is any good for it, also if so how significant ?
i have a 1987 pontiac firebird v6 2.8 mpfi, i would like to know if eliminating the catalitic converter would increase horepower in my car, if so how significant ? also if eliminating the air filter and putting in a cold air intake is any good for it, also if so how significant ?
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From: Knoxville, TN
Car: '87 Camaro / '87 Chevy K10
Engine: 3.4L MPFI (soon) / 5.7L TBI
Transmission: 700R4 / 700R4
Axle/Gears: 3.42 / 3.73
Re: questions about my 87' Firebird
It would increase only slightly, but you'll lose torque. A high flow cat replacement will do the small increase and won't kill torque. Do you(and your environment) a favor: keep the cat.
Don't know about the intake; Camaro has a different intake.
Don't know about the intake; Camaro has a different intake.
Senior Member
Joined: Jan 2008
Posts: 917
Likes: 1
From: peterborough UK
Car: 88 T firebird
Engine: 2.8
Transmission: t5
Re: questions about my 87' Firebird
hey, dont worry about the cat yet, the exhaust manifolds are the worst restriction, get headers first........
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From: right behind you
Car: '85 maro
Engine: In the works...
Transmission: TH700 R4
Axle/Gears: 3.73 posi
Re: questions about my 87' Firebird
There's no cai available as far as I know. You could gut the cat too.
Senior Member
Joined: Jan 2008
Posts: 917
Likes: 1
From: peterborough UK
Car: 88 T firebird
Engine: 2.8
Transmission: t5
Re: questions about my 87' Firebird
k&n panel will sort it out for now,
could just rid the cat, i had a bad cat but still passed emisions - though U.S testing i figure's a little harsher than ours
could just rid the cat, i had a bad cat but still passed emisions - though U.S testing i figure's a little harsher than ours
Re: questions about my 87' Firebird
im asking this because my catalitic converter is old and its all tore up and radaling inside so i figured if i gut it out then i would be fine, also for the guy that said that exhaust manifolds go bad for this car, i no it deos cause i have a small leak in mine, but besides that the car is fine (great condition). by the way i am looking into selling it because i am thinking of getting a fourth gen so im trying to sell it by the end of next month, if anybodies interested ofcorse thanx
Last edited by jdust; Jan 16, 2008 at 09:31 AM.
Senior Member
Joined: Jan 2008
Posts: 917
Likes: 1
From: peterborough UK
Car: 88 T firebird
Engine: 2.8
Transmission: t5
Re: questions about my 87' Firebird
Noooooooooooooooooooo!!!!!!!!!!!!!
dont do it
forth gens have the same chassis as third's ,
thirds are just as fast with a bit of help- smallblocks a smallblock!!!
forth has less room inside due to soundproofing and stuff.
third looks nicer- cleaner lines
somebody help me out here..........
dont do it
forth gens have the same chassis as third's ,
thirds are just as fast with a bit of help- smallblocks a smallblock!!!
forth has less room inside due to soundproofing and stuff.
third looks nicer- cleaner lines
somebody help me out here..........
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Senior Member
iTrader: (1)
Joined: Aug 2006
Posts: 620
Likes: 0
From: Knoxville, TN
Car: '87 Camaro / '87 Chevy K10
Engine: 3.4L MPFI (soon) / 5.7L TBI
Transmission: 700R4 / 700R4
Axle/Gears: 3.42 / 3.73
Re: questions about my 87' Firebird
im asking this because my catalitic converter is old and its all tore up and radaling inside so i figured if i gut it out then i would be fine, also for the guy that said that exhaust manifolds go bad for this car, i no it deos cause i have a small leak in mine, but besides that the car is fine (great condition). by the way i am looking into selling it because i am thinking of getting a fourth gen so im trying to sell it by the end of next month, if anybodies interested ofcorse thanx
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