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

Mac H = Lose Torque?

  • Thread starter Thread starter DRock9
  • Start date Start date Oct 11, 2006
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1fastsn95

New Member
Apr 22, 2005
122
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Carthage, tn
Oct 11, 2006
#101
  • Oct 11, 2006
  • #101
GTOReturns said:
You base your knowledge on a flow bench, I base mine on personal experience. New cars since the 90's run better with cats on. Ive been driving since1982 when you were playing with your GI Joe's. There not just for the air anmore,like they used to be in the 70's. Its all factored into your cars performance. And save the name calling for when your in school.
Click to expand...
oh boy, here we go again
 

mob

the guy who hits on his mom
20+ Year Stangneter
Oct 3, 2003
2,566
136
104
Dallas, TX
Oct 11, 2006
#102
  • Oct 11, 2006
  • #102
GTOReturns said:
You base your knowledge on a flow bench, I base mine on personal experience. New cars since the 90's run better with cats on. Ive been driving since1982 when you were playing with your GI Joe's. There not just for the air anmore,like they used to be in the 70's. Its all factored into your cars performance. And save the name calling for when your in school.
Click to expand...

I never liked gi joe's who cares how long youve been driving. You obviously dont know what your talking about, you say 4 stock cats will flow better then a free flowing pipe because it has more backpressure? What is backpressure? How does it work? You say an o/r hpipe helps up top, why? how do you figure? Why would cats restrict the car up top but not downlow, why would an o/r pi pe not be able to flow downlow but pick up at higher speeds? Do you blame it all on backpressure? Again what is backpressure? The term you should beusing is VELOCITY and cats does NOT give you more velocity. And I would not believe anything you are saying because like said before, its a mid pipe, stock, o/r or high flow cats you will FEEL NOTHING when your driving, and you have no numbers to prove your theory, so there are you. Your 20 or so years of driving has gotten you know where.
 
G

GTOreturns

Well-Known Member
Oct 1, 2003
51
17
59
West Coast Best Coast
Oct 11, 2006
#103
  • Oct 11, 2006
  • #103
DMAN302 said:
Stock 5.0 will move the rollers to the tune of 190's in pure stock 5spd form. Usually upgrading the exhaust on these cars will net you 210-220 with a good tune, bumped timing and a upgraded air filter.
Click to expand...
agree'd. But how much torque is lost when people change the stock headers and h pipe on a stock motor? I wish T-Moss were here, or Michael Yount
 

1fastsn95

New Member
Apr 22, 2005
122
0
0
Carthage, tn
Oct 11, 2006
#104
  • Oct 11, 2006
  • #104
DMAN302 said:
Stock 5.0 will move the rollers to the tune of 190's in pure stock 5spd form. Usually upgrading the exhaust on these cars will net you 210-220 with a good tune, bumped timing and a upgraded air filter.
Click to expand...
Maybe a little high (I said maybe), but you got the right idea
 
G

GTOreturns

Well-Known Member
Oct 1, 2003
51
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59
West Coast Best Coast
Oct 11, 2006
#105
  • Oct 11, 2006
  • #105
mob said:
I never liked gi joe's who cares how long youve been driving. You obviously dont know what your talking about, you say 4 stock cats will flow better then a free flowing pipe because it has more backpressure? What is backpressure? How does it work? You say an o/r hpipe helps up top, why? how do you figure? Why would cats restrict the car up top but not downlow, why would an o/r pi pe not be able to flow downlow but pick up at higher speeds? Do you blame it all on backpressure? Again what is backpressure? The term you should beusing is VELOCITY and cats does NOT give you more velocity. And I would not believe anything you are saying because like said before, its a mid pipe, stock, o/r or high flow cats you will FEEL NOTHING when your driving, and you have no numbers to prove your theory, so there are you. Your 20 or so years of driving has gotten you know where.
Click to expand...
Show me where I said this one thing and I will proceed to tell you about the other BS you pointed out!! And dont come back and say,oh,sorry dude I misread it!! Your up hot shot!
 

1fastsn95

New Member
Apr 22, 2005
122
0
0
Carthage, tn
Oct 11, 2006
#106
  • Oct 11, 2006
  • #106
youre not going to feel the power increase from exhaust. A dyno might tell you, but im convinced you wont feel it.
 

mob

the guy who hits on his mom
20+ Year Stangneter
Oct 3, 2003
2,566
136
104
Dallas, TX
Oct 11, 2006
#107
  • Oct 11, 2006
  • #107
GTOReturns said:
agree'd. But how much torque is lost when people change the stock headers and h pipe on a stock motor? I wish T-Moss were here, or Michael Yount
Click to expand...

Isnt the stock mid pipe a 2.25"? Aftermarket pipes are 2.5" This could be where the "backpressure" is going.
 
G

GTOreturns

Well-Known Member
Oct 1, 2003
51
17
59
West Coast Best Coast
Oct 11, 2006
#108
  • Oct 11, 2006
  • #108
1fastsn95 said:
youre not going to feel the power increase from exhaust. A dyno might tell you, but im convinced you wont feel it.
Click to expand...
I DID FEEL IT!! How many people do you know that put back the stock h pipe?
 

25thmustang

Mustang Master
Sep 5, 2003
2,021
85
99
Montgomery, NY
Oct 11, 2006
#109
  • Oct 11, 2006
  • #109
GTOReturns said:
Pfff yeah ok. And what exactly do you have done to your heads? Thats why you can use an off rd pipe. It happened to me, Im not just picking this out of the air. OK, maybe it will start to pull harder at 120mph. But from 0-100 a stock motor runs better with the stock H.
Click to expand...

So let me get this straight... A stock motored car with all the bolt ons will run faster and make more torque with a stock 4 cat, non mandrel bent 2 1/4" Mid pipe, than it would with a 2 1/2" mandrel bent off road midpipe...

You might be the dumbest guy on here this week.

And in 1982, I was not born yet, but the funny thing is, you apparently havent learned much in that time before I was born!

I love how flow tests mean nothing, but your SOTP meter is what counts, DUMBA$$!
 
G

GTOreturns

Well-Known Member
Oct 1, 2003
51
17
59
West Coast Best Coast
Oct 11, 2006
#110
  • Oct 11, 2006
  • #110
mob said:
Isnt the stock mid pipe a 2.25"? Aftermarket pipes are 2.5" This could be where the "backpressure" is going.
Click to expand...
Show me where I said this one thing and I will proceed to tell you about the other BS you pointed out!! And dont come back and say,oh,sorry dude I misread it!! Your up hot shot!
Edit/Delete Message

you started, you say things that I dont,could you please find this so people will know you dont make up your own stuff as your going along?
 

mob

the guy who hits on his mom
20+ Year Stangneter
Oct 3, 2003
2,566
136
104
Dallas, TX
Oct 11, 2006
#111
  • Oct 11, 2006
  • #111
25thmustang said:
So let me get this straight... A stock motored car with all the bolt ons will run faster and make more torque with a stock 4 cat, non mandrel bent 2 1/4" Mid pipe, than it would with a 2 1/2" mandrel bent off road midpipe...

You might be the dumbest guy on here this week.

And in 1982, I was not born yet, but the funny thing is, you apparently havent learned much in that time before I was born!

I love how flow tests mean nothing, but your SOTP meter is what counts, DUMBA$$!
Click to expand...

NO NO NO NO!!! ITLL HAVE MORE TORQUE!

I agree with everything said here.
 

1fastsn95

New Member
Apr 22, 2005
122
0
0
Carthage, tn
Oct 11, 2006
#112
  • Oct 11, 2006
  • #112
GTOReturns said:
I DID FEEL IT!! How many people do you know that put back the stock h pipe?
Click to expand...
Im sorry. I dont see how. I went from stock to off road to high flow back to off road on my 94. Never could I "feel" a difference. sounded different though.
 
G

GTOreturns

Well-Known Member
Oct 1, 2003
51
17
59
West Coast Best Coast
Oct 11, 2006
#113
  • Oct 11, 2006
  • #113
25thmustang said:
So let me get this straight... A stock motored car with all the bolt ons will run faster and make more torque with a stock 4 cat, non mandrel bent 2 1/4" Mid pipe, than it would with a 2 1/2" mandrel bent off road midpipe...

You might be the dumbest guy on here this week.

And in 1982, I was not born yet, but the funny thing is, you apparently havent learned much in that time before I was born!

I love how flow tests mean nothing, but your SOTP meter is what counts, DUMBA$$!
Click to expand...
Another guy who makes up his own novels. Yeah, I know how fast your running in the 1/4 and how stock your motor is! All I said is I bought an off rd h pipe had it put on and noticed a loss in low end torque. Enough of a loss to make me put my stock H back on. Say what you will, but you have to be the biggest liar on here. Your motor isnt even CLOSE to stock!!
 

DMAN302

My mom says thanks for the pearl necklace.
Nov 8, 2003
2,120
2
59
windsor, Canada
Oct 11, 2006
#114
  • Oct 11, 2006
  • #114
HP and torque will increase across the board.
 

mob

the guy who hits on his mom
20+ Year Stangneter
Oct 3, 2003
2,566
136
104
Dallas, TX
Oct 11, 2006
#115
  • Oct 11, 2006
  • #115
GTOReturns said:
Show me where I said this one thing and I will proceed to tell you about the other BS you pointed out!! And dont come back and say,oh,sorry dude I misread it!! Your up hot shot!
Edit/Delete Message

you started, you say things that I dont,could you please find this so people will know you dont make up your own stuff as your going along?
Click to expand...

All Im saying is that YES you can go TOO big, putting a 3" exhaust on my car will make me lose torque, but because the exhaust will have little velocity, NOT have no "backpressure"

So what im suggesting is on a stock motored stock headed car, a 2.5" mid p ipe MAY be TOO big. But in no way is the cats helping it gain more velocity, its the smaller piping of the stock mid pipe. The thing that your wrong about is that your suggesting a mid pipe with high flow cats will be better because he will have more bacpressure! High flow cats are not made for performance or torque on stock engines. They are made to pass emissions and still flow good. Now the size of the piping will determine how much torque you lose, but restricting the exhaust with cats WILL NOT give you torque, its that simple.
 

1fastsn95

New Member
Apr 22, 2005
122
0
0
Carthage, tn
Oct 11, 2006
#116
  • Oct 11, 2006
  • #116
DMAN302 said:
HP and torque will increase across the board.
Click to expand...
i would have to agree. I dont see how it wouldnt.
 
G

GTOreturns

Well-Known Member
Oct 1, 2003
51
17
59
West Coast Best Coast
Oct 11, 2006
#117
  • Oct 11, 2006
  • #117
GTOReturns said:
Show me where I said this one thing and I will proceed to tell you about the other BS you pointed out!! And dont come back and say,oh,sorry dude I misread it!! Your up hot shot!
Edit/Delete Message

you started, you say things that I dont,could you please find this so people will know you dont make up your own stuff as your going along?
Click to expand...
Im waiting?
 

1fastsn95

New Member
Apr 22, 2005
122
0
0
Carthage, tn
Oct 11, 2006
#118
  • Oct 11, 2006
  • #118
I shaved 2/10 off and picked up 2mph in the 1/8th with off road hpipe.
 
G

GTOreturns

Well-Known Member
Oct 1, 2003
51
17
59
West Coast Best Coast
Oct 11, 2006
#119
  • Oct 11, 2006
  • #119
1fastsn95 said:
I shaved 2/10 off and picked up 2mph in the 1/8th with off road hpipe.
Click to expand...
I lost 2 tenths going from 373's to 410's!! But lets not jack the thread any further!
 

1fastsn95

New Member
Apr 22, 2005
122
0
0
Carthage, tn
Oct 11, 2006
#120
  • Oct 11, 2006
  • #120
i hope yall work this out. Im going to bed now. To the original question: An off road hpipe is worth the money. hands down. goodnight!
 
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