2.8l gas mileage
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Joined: May 2006
Posts: 577
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From: Minnesota
Car: 84' Trans Am
Engine: 5.0 H.O. L69
Transmission: 700R4
Axle/Gears: 3.73 Disc Brakes
2.8l gas mileage
well i have a 1984 pontiac firebird with the 2.8l with the 700r4 with overdrive. what is the mpg that i should expect with this car? i havent been able to take it on the road yet cuz of the broken engine mount so i was just wondering what itll get.
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From: Honolulu, HI
Car: 2011 SS/RS
Engine: LS3
Transmission: Tremic6060
Axle/Gears: good enough
my 83 with the th200c (3 speed no overdrive) gets about 18-19 mixed, and did 16 mpg on a road trip with quite a few curves (a lot of slowing down, mashing the petal to get back up hills) so you should get around 20 or so
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Joined: Mar 2005
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From: Honolulu, HI
Car: 2011 SS/RS
Engine: LS3
Transmission: Tremic6060
Axle/Gears: good enough
I don't know how well the carbed 2.8l's are with mpg with the over drive tranny so you could also never seen into the teens at all, yet if you have a Poor carb tune/general tune you could be in the teens all day long... which reminds me... i got to go work on the car now lol
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From: North Central Mass.
Car: 1985 Berlinetta
Engine: Megasquirted TPI
Transmission: Transgo 700R4
Axle/Gears: 3.42
the MPFI 2.8 gets much better mileage then the carb. That being said, I get about 29 highway as well.
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Thread Starter
Joined: May 2006
Posts: 577
Likes: 2
From: Minnesota
Car: 84' Trans Am
Engine: 5.0 H.O. L69
Transmission: 700R4
Axle/Gears: 3.73 Disc Brakes
Originally Posted by Firebreed
my 83's window sticker just says 19mpg... lol
Thread Starter
Joined: May 2006
Posts: 577
Likes: 2
From: Minnesota
Car: 84' Trans Am
Engine: 5.0 H.O. L69
Transmission: 700R4
Axle/Gears: 3.73 Disc Brakes
i hope so, with gas prices now days its over $3 a gal. I was think about doing the v8 conversion but i think im going to wait awhile. lol
Supreme Member
Joined: Mar 2005
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From: Honolulu, HI
Car: 2011 SS/RS
Engine: LS3
Transmission: Tremic6060
Axle/Gears: good enough
Originally Posted by 84 Trigger
Do u have the overdrive?
Senior Member
Joined: May 2006
Posts: 581
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From: Minnesota
Car: 1998 Mustang
Engine: 3.8L V6
Transmission: Automatic with overdrive
Axle/Gears: 2.73:1 axle ratio
Originally Posted by Firebreed
nope i got the crappy 200c tras (3 speed auto no overdrive) i was one of the unlucky persons to get the trans in 83....
Thread Starter
Joined: May 2006
Posts: 577
Likes: 2
From: Minnesota
Car: 84' Trans Am
Engine: 5.0 H.O. L69
Transmission: 700R4
Axle/Gears: 3.73 Disc Brakes
700r4... yay im kinda lucky Last edited by 84'Firebird; May 16, 2006 at 04:04 PM.
Thread Starter
Joined: May 2006
Posts: 577
Likes: 2
From: Minnesota
Car: 84' Trans Am
Engine: 5.0 H.O. L69
Transmission: 700R4
Axle/Gears: 3.73 Disc Brakes
i checked it out, looks like they have a tendency to lock up but thats the 1's with the 8's.
Last edited by 84'Firebird; May 16, 2006 at 07:54 PM.
Senior Member
Joined: May 2006
Posts: 581
Likes: 0
From: Minnesota
Car: 1998 Mustang
Engine: 3.8L V6
Transmission: Automatic with overdrive
Axle/Gears: 2.73:1 axle ratio
Originally Posted by 84 Trigger
i checked it out, looks like they have a tendency to lock up.
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From: Adirondacks, New York
Car: 92 Camaro RS
Engine: 5.0L
Transmission: AUTO, 56k orig
Originally Posted by 83camaroMN
okay w/e but i bet my trans. will out last yours
school girl remark.... Senior Member
Joined: May 2006
Posts: 581
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From: Minnesota
Car: 1998 Mustang
Engine: 3.8L V6
Transmission: Automatic with overdrive
Axle/Gears: 2.73:1 axle ratio
----------
Originally Posted by 84 Trigger
lol
Last edited by 83camaroMN; May 16, 2006 at 08:52 PM. Reason: Automerged Doublepost
Senior Member
Joined: May 2006
Posts: 581
Likes: 0
From: Minnesota
Car: 1998 Mustang
Engine: 3.8L V6
Transmission: Automatic with overdrive
Axle/Gears: 2.73:1 axle ratio
Originally Posted by 84 Trigger
j/k its a joke. relax.
Last edited by 83camaroMN; May 16, 2006 at 08:51 PM.
Thread Starter
Joined: May 2006
Posts: 577
Likes: 2
From: Minnesota
Car: 84' Trans Am
Engine: 5.0 H.O. L69
Transmission: 700R4
Axle/Gears: 3.73 Disc Brakes
that anwsered my ? guys, thanx. Last edited by 84'Firebird; May 16, 2006 at 08:47 PM.
Supreme Member
Joined: Mar 2005
Posts: 1,539
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From: Honolulu, HI
Car: 2011 SS/RS
Engine: LS3
Transmission: Tremic6060
Axle/Gears: good enough
Guys... Dont TAKE things on the net seriously, THere was NO reason for you to blow up at the guy, now come on, get some ***** and act like men.
Thread Starter
Joined: May 2006
Posts: 577
Likes: 2
From: Minnesota
Car: 84' Trans Am
Engine: 5.0 H.O. L69
Transmission: 700R4
Axle/Gears: 3.73 Disc Brakes
Originally Posted by 83camaroMN
okay w/e but i bet my trans. will out last yours
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