• Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech

Three inch exhaust for this? Sounds funny...

  • Thread starter Thread starter RioRed94vert
  • Start date Start date Nov 3, 2005
R

RioRed94vert

New Member
Jun 13, 2005
50
0
0
kansas city
Nov 3, 2005
#1
  • Nov 3, 2005
  • #1
I know someone who just got an 88 lx notch and he doesnt really know much about cars. He has a short throw shifter, king cobra clutch, cold air, cobra intake, udpullies, longtube headers into 3 inch exhaust and dumped. My qeustion is that the 3 inch exhaust sounds like to much for a 5 liter with no internal mods like cam, heads and what not. I have a stock 96 gt 5 speed and we raced from a stop . He let off at about 25-30 and said that the "clutch slipped" I think he might be full of ****. Cause he definitly floored it and I pulled away in my stocker on 18'' rims. Is it possible that he is losing a ton of low end torque with that exhaust? He says it needs 3 inch exhaust, and i beg to differ. Sorry so long any input would be helpful.....
 

poneypower89

Now everyone in the world will know I wanna bang t
Dec 6, 2004
0
3
28
Indianapolis, Indiana
Nov 3, 2005
#2
  • Nov 3, 2005
  • #2
3 inch is overkill on that stock type motor.

I wouldnt think he would lost ALOT of power... but he definitely didnt gain any.
 

srothfuss

Last night I stabbed the same guy 7 times in a row
Oct 17, 2004
1,796
3
0
Woodward Ave.
Nov 3, 2005
#3
  • Nov 3, 2005
  • #3
The only area where he gained any power was in the 6,000+ range with a stock style setup and 3" plumbing...

Maybe if it was supercharged it wouldn't be so bad but I bet that car is a dog off the line.
 

5spd GT

"the 5.0 owns all"
Founding Member
Aug 7, 2002
9,516
6
99
Arkansas
Nov 3, 2005
#4
  • Nov 3, 2005
  • #4
He probably doesn't have 3in exhaust and is judging that off his tips.

3 in. exhaust is definetly not needed until you get some big horsepower numbers.

I doubt his clutch is slipping. That King Cobra (assuming he has one) will hold up just fine for quite some time even under abuse with that power level.
 

Euphoric306

New Member
Apr 5, 2004
905
0
0
Nov 3, 2005
#5
  • Nov 3, 2005
  • #5
dang he must have 3" exhaust or be the worst driver ever, because his gt40 intaked 5.0 shoulda stomped your 4.6 sorry to say,

advise this guy to step down a notch on the exhaust, or just swap a 460 to match it
 

KDK1988GT

Founding Member
Jan 7, 2002
1,937
0
37
Fredericton
Nov 3, 2005
#6
  • Nov 3, 2005
  • #6
sounds a bit big if its all 3inch....
 
B

BlackSaleenS281

Banned
Apr 22, 2005
117
0
0
Nov 3, 2005
#7
  • Nov 3, 2005
  • #7
Hell the 3 inch on the fox body looks like **** to me anyways. Wayyyyyy to big, 2.5 is perfect.
 

Mavrick

Founding Member
Aug 29, 2002
2,264
0
46
Collingwood, ON
Nov 3, 2005
#8
  • Nov 3, 2005
  • #8
srothfuss said:
The only area where he gained any power was in the 6,000+ range with a stock style setup and 3" plumbing...

Maybe if it was supercharged it wouldn't be so bad but I bet that car is a dog off the line.
Click to expand...

:Word:

The heads would be a huge restriction at that RPM, so 3" exhaust would be useless in that sense anyhow..
 

srothfuss

Last night I stabbed the same guy 7 times in a row
Oct 17, 2004
1,796
3
0
Woodward Ave.
Nov 3, 2005
#9
  • Nov 3, 2005
  • #9
Mavrick said:
:Word:

The heads would be a huge restriction at that RPM, so 3" exhaust would be useless in that sense anyhow..
Click to expand...


Ah, good point! :Word:
 

STANGateURlilSS

Founding Member
May 2, 2002
716
0
16
USA & SANDBOX
Nov 3, 2005
#10
  • Nov 3, 2005
  • #10
3" exhaust is way way too big for a stock 5 liter.. hell i just finished doing exhaust for a customers 63 falcon.. w a blown 331 making 620hp at the wheels and its running 2.5" exhaust.. 3" exhaust is way too much for a stock 5 liter..
 

85_SS_302_Coupe

it sucks (I know) to be on the receiving end
15 Year Member
Nov 11, 2003
6,945
1,598
223
Northern KY
Nov 3, 2005
#11
  • Nov 3, 2005
  • #11
On a typical bolt-on engine, if you run 1 5/8 headers into a 2.5 inch mid pipe (X/H) and THEN into 3 inch exhaust, you'll pick up top end without sacrificing torque. Three inch from the headers back is overkill, but will still help top end, but you'll suffer loss of torque.
 

Michael Yount

Mustang Master
Apr 10, 2002
9,039
6
79
Charlotte, NC
Nov 3, 2005
#12
  • Nov 3, 2005
  • #12
" Is it possible that he is losing a ton of low end torque with that exhaust?"

Not only is it possible, it's entirely probable.
 

Euphoric306

New Member
Apr 5, 2004
905
0
0
Nov 4, 2005
#13
  • Nov 4, 2005
  • #13
oh man... blown 331 falcon

good thing i wasn't working on that or else he'd complain about a dried oil/coolant mix all over his car that couldn't be explained
 

Michael Yount

Mustang Master
Apr 10, 2002
9,039
6
79
Charlotte, NC
Nov 4, 2005
#14
  • Nov 4, 2005
  • #14
There, there Euphoric -- keep both hands on the keyboard, please....or go get some tissue for crying out loud.
 

Euphoric306

New Member
Apr 5, 2004
905
0
0
Nov 4, 2005
#15
  • Nov 4, 2005
  • #15
hehe my bad

my dad's first car was a 63 falcon, the pictures and stories made it kind of a love affair to the fox
 

90mustangGT

I felt sorry for girls because
Founding Member
Jan 15, 2002
2,773
17
89
Dallas, GA
Nov 4, 2005
#16
  • Nov 4, 2005
  • #16
3" exaust? What is his total setup? It wouldn't make a big difference, maby a few lbs of torque down low would be lost but I doubt just an oversized catback would really effect anything to the point of getting smoked or winning.
 
You must log in or register to reply here.

Similar threads

Place to Avoid: Jamison Auto Group in Gulfport, MS
  • D Durden
  • Oct 20, 2025
  • 1965 - 1973 Classic Mustangs -General/Talk-
  • 2 3
Replies
46
Views
3K
1965 - 1973 Classic Mustangs -General/Talk- Jul 16, 2026
Noobz347
J
Progress Thread Family member 1989 GT- Backstory and updates
  • JRC99
  • Apr 19, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
15
Views
1K
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Oct 26, 2025
JRC99
J
Which one of these 3 intakes make the most sense for my 331 combo
  • from6to8
  • Jul 25, 2024
  • 1994 - 1995 Specific Tech
Replies
7
Views
2K
1994 - 1995 Specific Tech Jul 26, 2024
AeroCoupe
H
Drivetrain 4R70W clutch friction/metals/piston set up questions for transmission guru
  • Hizdudeness
  • Apr 4, 2024
  • Fox 5.0 Mustang Tech
Replies
2
Views
980
Fox 5.0 Mustang Tech Nov 15, 2024
slow84lx
S
W
1987 mustang gt 5.0 flooding itself when it’s in gear
  • Willyc
  • Sep 1, 2022
  • Fox 5.0 Mustang Tech
Replies
10
Views
2K
Fox 5.0 Mustang Tech Sep 3, 2022
Willyc
W
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?