4.9l Performance Upgrades?

Reply Subscribe

Thread Tools

Search this Thread

Jun 21, 2009 | 12:40 PM

#31

optikal illushun

Postmaster

Joined: Mar 2002

Posts: 3,545

Likes: 4

From: Coal Region

i had a long and short glasspack on my truck, along with a flowmaster, magnaflow, thrush turbo and no muffler along with the newest Moroso. the glasspacks were very ricey on the higher end. i dont know if it was the EFI manifolds the highflow cat but it sounded lousy.

Jun 21, 2009 | 12:47 PM

#32

6CylBill

Post Fiend

Joined: Jan 2007

Posts: 7,021

Likes: 4

From: Almost Heaven

Quote:

Originally Posted by 70torino429

the one time my exhaust fell off my truck i thought it sounded good, lol, that was just no muffler and had the cats on. Sounded like a gnarly tractor.

The biggest problem with headers sealing, is typically the gaskets that come with the headers are junk, and if the bolts arent torqued down perfectly, they like to back themselves out.

BTW, i like crown victorias

Your exhaust just magically fell off, huh? hahaha!

Anyway that was my point. I wasn't saying to stay away from headers. I was merely saying he can't go wrong with EFI manifolds, and to be aware some headers have issues sealing.

When I had both cats and no muffler, it sounded like a tractor. I loved it, actually, and if I ever have to put cats back on my truck again I'll just run it with no muffler.

Jun 21, 2009 | 12:49 PM

#33

6CylBill

Post Fiend

Joined: Jan 2007

Posts: 7,021

Likes: 4

From: Almost Heaven

Quote:

Originally Posted by optikal illushun

With both cats, I ran a 2.25'' Y pipe into full tailpipes and louvered glass packs fr tips. It didn't sound ricey. I don't know why yours did. Placement of the glass packs, perhaps? A few members on this site run glass packs on their 300's and they sound good. When I had both cats and a Flowmaster super 40, my truck sounded just like a little Honda.

Like I said, it all depends. The 300 is picky about exhaust sound.

Jun 21, 2009 | 12:55 PM

#34

6CylBill

Post Fiend

Joined: Jan 2007

Posts: 7,021

Likes: 4

From: Almost Heaven

Here are some sound clips that aren't of my truck.
YouTube - Ford 300 Inline 6 straight pipe <--- Both cats, no muffler. I like it.

And here is the 2.25'' Y pipe with cats I was telling you about. It sounded more mellow on my truck for some reason. His sounds more like a tractor.
YouTube - My 89 straight six Ford F150

Here is what is supposed to be a straight pipe.
YouTube - straight pipe

I think the above video belongs to a poster on FTE.

And here's one with a Flowmaster. Not sure how it's set up.
YouTube - 1996 F-150 300-6 Exaust

And here's another of mine
YouTube - F150 Passing by

Jun 21, 2009 | 12:57 PM

#35

70torino429

Posting Guru

Joined: Dec 2008

Posts: 1,074

Likes: 1

From: Mass.

Quote:

Originally Posted by 6CylBill

Your exhaust just magically fell off, huh? hahaha! .

yes, it was magical, lol. it was rusted in front of the muffler, and some sideways offroad action caused it to break off. I was having so much fun i didnt even notice it happened till i got back on road and heard the tailipe scraping the ground, lol, it sounded good though.

Jun 21, 2009 | 01:03 PM

#36

SideWinder4.9l

Thread Starter

FTE Chapter Leader

Joined: May 2009

Posts: 8,843

Likes: 27

From: Eastern Ky

Gee...A little over kill there bill....jk the clips will take ETERNITY to load on dial up, thanks again tho....

Now that that little issue is settled, any idea what the axle code for my truck means?

Heres the tag #'s:
S8 36

3 08 88 4828

Cant find an axle tag decoder off hand as of RN....ANy help will be appreciated greatly...I do know its a limited slip if that helps...

Thanks-

-Wes

Jun 21, 2009 | 01:08 PM

#37

6CylBill

Post Fiend

Joined: Jan 2007

Posts: 7,021

Likes: 4

From: Almost Heaven

You have 3.08 open diff. That's what my truck came with too.

Jun 21, 2009 | 01:11 PM

#38

SideWinder4.9l

Thread Starter

FTE Chapter Leader

Joined: May 2009

Posts: 8,843

Likes: 27

From: Eastern Ky

If its open, then why does the drivers side wheel spin in gravel, occasionally on the tarmac?

Just curious....

-Wes

FTE Stories

Ford Trucks for Ford Truck Enthusiasts

Top 10 Ford Truck Tragedies

Joe Kucinski

AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

Brett Foote

Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

Michael S. Palmer

Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Verdad Gallardo

10 Best Ford Truck Engines We Miss the Most!

Joe Kucinski

2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Brett Foote

2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Michael S. Palmer

10 Most Surprising 2026 Ford Truck Features!

Joe Kucinski

Top 10 Ford Trucks Coming to Mecum Indy 2026

Brett Foote

5 Best / 5 Worst Ford Truck Wheels of All Time

Joe Kucinski

Jun 21, 2009 | 01:18 PM

#39

6CylBill

Post Fiend

Joined: Jan 2007

Posts: 7,021

Likes: 4

From: Almost Heaven

Quote:

Originally Posted by SideWinder4.9l

If its open, then why does the drivers side wheel spin in gravel, occasionally on the tarmac?

Just curious....

-Wes

Mine would too. Both wheels would spin in gravel, dirt, and mud. I got stuck in the mud one time and both sides of my truck had mud on it, but the right side was covered in more mud than the other. They both spin but the driver's side typically gets the most power.

Open diffs are fun for brake stands, heh.

Jun 21, 2009 | 01:32 PM

#40

SideWinder4.9l

Thread Starter

FTE Chapter Leader

Joined: May 2009

Posts: 8,843

Likes: 27

From: Eastern Ky

Ahh....Another of FORDs' mysterious wonders of the automotive world....

Thats almost like the little beeping sound scares the crap out of me every so often, only happen though if I am playing around do donuts/slides, the truck shuts off, you start it and drive off only for the beeping start for about 10 minutes and quit as mysteriuosly as it started......*Scratches head, takes a drink of beer, and walks off*

_wes