hey guys. i just got this car for x-mas. its a 1987 pontiac firebird 2.8 auto. what would my quarter time be? my mods are as fallows. 2.8 rebuild bored .040 over, shaved crankshaft, blue racer .443 lift cam, comp cams lifters, rebuilt heads, milled, ported and polished, bigger valves, new valve train, ported and polished intake manifold, new fuel injectors, tb coolant bypass, auto trans shift kit, stock rearend 3:42 gears, 255-60-15 rear tires? im hoping its in the mid 15's.

 

high 16's low 17's is most likely but you never know till' you go

 

I wish my bird had all those mods when i got it!

I think you are in the low-mid 16's dude.

 

16's.

I think with a ramair setup (or at least a cold air) and a full exhaust (headers will benefit greatly!) you'd be in the 15's no problem.

 

common guys! i have to be runnin better than that. i was hopping for mid 15s

 

My car went 16.3 with shift kit,home made inake, highflow cat and exhaust,pulleys,crane cam. I then added headers and 3.73s only to go 16 .0's . But my 60 foot times are worse since the headers/3.73's, so I think I;m good for 15.8's with good traction. I will borrowing my friends drag radials for some traction, as I cant get it now with my non posi rear. I have a set of ported heads in the garage not installed, I think with traction an if the heads add some decent power the car would go mid 15's.

 

how much compression do you have? looks like high-mid 15's to me... i usualy go to http://www.60degreev6.com/ they have allot of people that can help you out, these people do allot to their cars, one guy has his 60* v6 running low 14's just on the motor!

 

My 92 firebird automatic with 51,000 original miles ran a 16.268@84.330 with jet power pulleys, hypertech thermochip w/160 stat, dynomax exhuast, K&N cold air (air box removed), MSD 6A ignition w/coil, accel cap & rotor, plugs & plug wires. I had the crane cam installed with 1.52 rollers and it funked up my times big time!! I'm getting it fixed when it comes out of storage in June. I think you could atleast run high 15's, but not low. My 96 STS Caddy ran only a 14.73 and that is rated at 300 HP. You guys have to admit high15's are not too bad for a 3rd gen V6 without nitrous. , sorry about the faces, I never put them on my replies so I thought I'd try. Have a fun night everyone.

 

what i tell you is no lie, this guy has a 60* v6 in his camvaleer and he moded it and it does 14.9's easy with no juce, just pure engine... its not even where he could max it out... he has timeslips to prove it...

 

but what's the weight of a cavileer comapared to a 3300-3400lbs f-body. If our cars weight 2500lbs, we'd be in the mid 16's from the factory.

 

that is very true. My cousin has the same year cavalier and he can beat me with the same engine

 

hey guys i keep hearing this again and again
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how can u remove an airbox ????

my 89 has two of them ahead of the radiator....

???

 

i have the side air box setup... you can see pics of how i removed the botom of my airbox, but its not the same setup you have... www.geocities.com/rick141985

 

thast cool man...

i think i am gonna try to have the bottom of my airbox removed as well but unfortunately ... it has to be hacksawed out

im gonna visit lowes to see of some options

if u have ever seen a 89 camaro v6 ull know of my setup and it has two intakes w/ 2 filters