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Topic: 2.5" exhaust on a stock 5.0 ? (Read 3600 times) previous topic - next topic

2.5" exhaust on a stock 5.0 ?

Reply #15 –
Its not hard to do yourself, there are write ups and basically step by step instructions for every step. little bit of common sense goes a long.way.
Quote from: jcassity
I honestly dont think you could exceed the cost of a new car buy installing new *stock* parts everywhere in your coug our tbird. Its just plain impossible. You could revamp the entire drivetrain/engine/suspenstion and still come out ahead.
Hooligans! 
1988 Crown Vic wagon. 120K California car. Wifes grocery getter. (junked)
1987 Ford Thunderbird LX. 5.0. s.o., sn-95 t-5 and an f-150 clutch. Driven daily and going strong.
1986 cougar.
lilsammywasapunkrocker@yahoo.com

2.5" exhaust on a stock 5.0 ?

Reply #17 –
Yea please don't talk me into that....lol

2.5" exhaust on a stock 5.0 ?

Reply #18 –
Quote from: Gary3072;432049
Really just wanted a bigger exhaust tone and rumble, and also power if possible. I could do the HO upgrade with cheap used parts but id have to have someone do it that knows how.


I wouldn't upgrade the engine till your ready. I would skip over the stock HO stuff as it does have more power but it's not "that" fast (speaking from experience driving a stock 5.0 HO/AOD Mark VII). If you ever go to up grade the engine the best bet (and part cost is virtually the same) is to get a HO cam from a Mustang/Mark VII and GT40 heads/intake from an Explorer. That would get you between 275-300hp at the flywheel. When I had GT40P heads and a 65mm TB on my car it made 235hp to the wheels, which is around 290 at the flywheel. Would have made more with a bigger cam. Haven't had it on a dyno with the Edelbrock heads and 70mm TB but it traps about 5mph faster under similar conditions. The car probably makes about 260-270 at the wheels and 330-340 at the crank. 

As far as a 2.5" exhaust go ahead and run it. It will be fine. I ran stock Mustang headers with a 2.5" dual exhaust for three years on the 5.0 SO that was originally in my Thunderbird without issue. It will work fine.
88 Thunderbird LX: 306, Edelbrock Performer heads, Comp 266HR cam, Edelbrock Performer RPM intake, bunch of other stuff.

2.5" exhaust on a stock 5.0 ?

Reply #19 –
Ill bet a h.o. is a lot more fun with a t-5 and some 3.73's. i couldn't beleive the differance the stick shift made. my buddy (who drives a 99 gt) guess that it felt like 100 more hp to the butt dyno. he told me if i did the h.o. upgrade he wouldn't race me.

all joking aside, everything is pretty much plug and play and you can get the parts so cheap its not even funny. in the last year i bought a explorer intake, 65mm egr spacer and throttle body, stang catted h-pipe and headers, 19# fuel injectors,  h.o. cam and computer for less then $200.

Alittle bit of patience goes a long way.
Quote from: jcassity
I honestly dont think you could exceed the cost of a new car buy installing new *stock* parts everywhere in your coug our tbird. Its just plain impossible. You could revamp the entire drivetrain/engine/suspenstion and still come out ahead.
Hooligans! 
1988 Crown Vic wagon. 120K California car. Wifes grocery getter. (junked)
1987 Ford Thunderbird LX. 5.0. s.o., sn-95 t-5 and an f-150 clutch. Driven daily and going strong.
1986 cougar.
lilsammywasapunkrocker@yahoo.com
 

2.5" exhaust on a stock 5.0 ?

Reply #20 –
OP, I've got an HO upper/lower, injectors, and a cam I'd sell to ya. I'm upgrading my 5.0 with P heads, a bigger cam, and Cobra intake, these are freshly removed, and need to go somewhere. All you'd need is an EEC from a Mustang, such as a DA1, or a VM1, and you'd be set.

In the meantime, grab some GT40 heads, and put those on when you do the cam swap, and it would be an "HO Magnum". (not intended to convey ANY relevance to a  dodge.) :D

Haystacker, you buddy is scared of an HO Tbird, and he's got a '99 GT? He's a wuss. LOL
'98 Explorer 5.0
'20 Malibu (I know, Chevy, but, 35MPG. Let's go brandon, eh)