General Performance Mods?
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Joined: Oct 2014
Posts: 2
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General Performance Mods?
Hey guys, I'll get right down to the point for the purpose of the thread.
I've been searching low and high for ways to pull out power in a stock 1986 Pontiac Trans Am with the 305 engine in it. I can't really seem to find a list of things you can do to get some power from it, and being a person who's used to imports (yes, flame me if you must) and wanting to go back to the grass roots of Third Gen beauties, can someone point me in the directions of general things done to this engine to get some power to it? Doesn't matter what type of budget it runs, anything helps! Thanks guys!
I've been searching low and high for ways to pull out power in a stock 1986 Pontiac Trans Am with the 305 engine in it. I can't really seem to find a list of things you can do to get some power from it, and being a person who's used to imports (yes, flame me if you must) and wanting to go back to the grass roots of Third Gen beauties, can someone point me in the directions of general things done to this engine to get some power to it? Doesn't matter what type of budget it runs, anything helps! Thanks guys!
Joined: Oct 2013
Posts: 2,620
Likes: 159
From: Louisville, KY
Car: 1983 Z28
Engine: 385 Fastburn
Transmission: T-5
Axle/Gears: BorgWarner 9-bolt posi, 3.27 gears
Re: General Performance Mods?
Rip that stock exhaust off and put something that actually flows in it's place, headers on back.
If you're in a location that doesn't require emissions testing - nix all of it too. You'll have to tuck some wires away but it can be done.
Getting the thing to breathe properly will do wonders to that engine.
If you're in a location that doesn't require emissions testing - nix all of it too. You'll have to tuck some wires away but it can be done.
Getting the thing to breathe properly will do wonders to that engine.
Joined: Mar 2014
Posts: 4,556
Likes: 812
From: South Ms
Car: 89 Firebird
Engine: 355 TBI
Transmission: 700R4
Axle/Gears: 10 Bolt.Posi-3.73s
Re: General Performance Mods?
Headers and atleast 2.75in if not 3in exhaust is a big start and a must if u are serious about making any power. Different air cleaner assemblies can be an improvement. Replacing stock gears for 3.42 or 3.73 gear ratios will really wake one up also. But do not expect to make a rocket out of that 305. It can be a peppy and very reliable engine though. Is it TPI.TBI,or carb? The TPI cars are fairly quick for what they are.3
Supreme Member
Joined: Oct 2004
Posts: 4,528
Likes: 240
From: Henrietta NY
Car: 1984 Trans Am L69
Engine: Sniper EFI Powered 355
Transmission: WC T5 w/ Steel Support Plate
Axle/Gears: 3.42 10 Bolt Posi
Re: General Performance Mods?
Same as the import world. Start with the basics Intake, headers and exhaust. Stay away from any exhaust that is 2.5" and do NOT buy summit house brand, flowtek or ebay cheap headers they suck.
Supreme Member
Joined: Jun 2011
Posts: 2,036
Likes: 6
From: knoxville tn
Car: 86 IROC
Engine: 5.0 TPI
Transmission: 700-R-4
Axle/Gears: 2.73 open
Re: General Performance Mods?
Hey guys, I'll get right down to the point for the purpose of the thread.
I've been searching low and high for ways to pull out power in a stock 1986 Pontiac Trans Am with the 305 engine in it. I can't really seem to find a list of things you can do to get some power from it, and being a person who's used to imports (yes, flame me if you must) and wanting to go back to the grass roots of Third Gen beauties, can someone point me in the directions of general things done to this engine to get some power to it? Doesn't matter what type of budget it runs, anything helps! Thanks guys!
I've been searching low and high for ways to pull out power in a stock 1986 Pontiac Trans Am with the 305 engine in it. I can't really seem to find a list of things you can do to get some power from it, and being a person who's used to imports (yes, flame me if you must) and wanting to go back to the grass roots of Third Gen beauties, can someone point me in the directions of general things done to this engine to get some power to it? Doesn't matter what type of budget it runs, anything helps! Thanks guys!
Joined: Jul 2011
Posts: 744
Likes: 5
From: Davison, MI
Car: 89 Camaro
Engine: Dart SHP 400-Holley Terminator EFI
Transmission: Tremec T56 Magnum F
Axle/Gears: Strange S60 3.55:1
Re: General Performance Mods?
Hey guys, I'll get right down to the point for the purpose of the thread.
I've been searching low and high for ways to pull out power in a stock 1986 Pontiac Trans Am with the 305 engine in it. I can't really seem to find a list of things you can do to get some power from it, and being a person who's used to imports (yes, flame me if you must) and wanting to go back to the grass roots of Third Gen beauties, can someone point me in the directions of general things done to this engine to get some power to it? Doesn't matter what type of budget it runs, anything helps! Thanks guys!
I've been searching low and high for ways to pull out power in a stock 1986 Pontiac Trans Am with the 305 engine in it. I can't really seem to find a list of things you can do to get some power from it, and being a person who's used to imports (yes, flame me if you must) and wanting to go back to the grass roots of Third Gen beauties, can someone point me in the directions of general things done to this engine to get some power to it? Doesn't matter what type of budget it runs, anything helps! Thanks guys!
https://www.thirdgen.org/technical-articles
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Joined: Oct 2001
Posts: 12,232
Likes: 1,160
From: Il
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: General Performance Mods?
Dyno Dons headers and a good cat back like magnaflow or borla.
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