headers vs. muffler

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Oct 29, 2003 | 06:42 PM

rocklayer

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headers vs. muffler

I have just bought a new ranger 3.0 and want to increase power for towing a trailer. Which would give me more power headers or changing to a high flow muffler?

Oct 29, 2003 | 07:00 PM

wolfen

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From: Connecticut

Welcome to FTE rocklayer,

Quote:

I have just bought a new ranger 3.0 and want to increase power for towing a trailer. Which would give me more power headers or changing to a high flow muffler?

Putting on the Hi-Flo muffler is only doing part of the job!
Headers increase exhaust flow wo/ stock manifold restrictions!
Combine em' both! Also, don't forget your HO2/O2 sensor recepticle holes!
__________________________________________________ _
‘90 Ranger XLT: 2.3L, EEC-IV, EFI, DIS, 2wd, Mazda 5sp 127K/mi

Oct 29, 2003 | 07:56 PM

rocklayer

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thanks for the info. What do you mean about HO2/O2 sensor recepticle holes?

Oct 29, 2003 | 08:09 PM

Dealford

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From: Belleville, Ontario

. Your exhaust system has one oxygen sensor before the catalytic converter and one past it. When you modify your exhaust system, keep this in mind.

Oct 29, 2003 | 08:10 PM

wolfen

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From: Connecticut

Hi rocklayer,

These are the holes that your HO2 (Hot Oxygen sensor) + O2 (Oxygen sensor) go in to, that have to be switched from your old system to the new headers + exhaust! These give the on-board computer needed info about the way the exhaust system is running and then regulates air/fuel flow!

__________________________________________________ _
‘90 Ranger XLT: 2.3L, EEC-IV, EFI, DIS, 2wd, Mazda 5sp 127K/mi

Oct 29, 2003 | 08:11 PM

ctfuzzy

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From: N. Florida - The "No 4x4

Quote:

Originally posted by Dealford
. Your exhaust system has one oxygen sensor before the catalytic converter and one past it. When you modify your exhaust system, keep this in mind.

And no, you can't get rid of either one

Honest. it will make your truck verrrrrrry unhappy.

Oct 29, 2003 | 08:13 PM

ctfuzzy

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From: N. Florida - The "No 4x4

!! Man !! You're F-A-S-T.

. . must be the Wolf part

Quote:

Originally posted by wolfen
Hi rocklayer,

These are the holes that your HO2 (Hot Oxygen sensor) + O2 (Oxygen sensor) go in to, that have to be switched from your old system to the new headers + exhaust! These give the on-board computer needed info about the way the exhaust system is running and then regulates air/fuel flow!
__________________________________________________ _
‘90 Ranger XLT: 2.3L, EEC-IV, EFI, DIS, 2wd, Mazda 5sp 127K/mi

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Oct 29, 2003 | 08:47 PM

ctfuzzy

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From: N. Florida - The "No 4x4

Quote:

Originally posted by wolfen
Have you ever seen the show WOLFEN...check it out!
AAOOOOOOOOOOOOOO!
________________________________________________
‘90 Ranger XLT: 2.3L, EEC-IV, EFI, DIS, 2wd, Mazda 5sp 127K/mi

Oh Man. I read the original book. Some seriously seriously spooky stuff.

And I pride myself one being an "avid" outdoorsman and a definite animal person. Scared the crapola out of me anyway.

Oct 29, 2003 | 10:05 PM

#10

soksniffer

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From: Whittier, CA

Quote:

Originally posted by wolfen

Headers increase exhaust flow wo/ stock manifold restrictions!
Combine em' both! Also, don't forget your HO2/O2 sensor recepticle holes!

Okay, my understanding of these things is tenuous at best, but won't headers ultimately decrease low-end torque (and hence towing capacity)? I know putting them on can bump upper-RPM horsepower, but it's been my understanding that too little back pressure--or more accurately, too little pressure differential across the exhaust system--(i.e., like with headers) will sap towing ability. It has to do with "valve overlap" and the possibility of having exit gasses going the wrong way at lower RPMs, which ends up robbing power.

I've got a pretty good text file someone typed up about backpressure and its effect on power; e-mail me if you'd like me to forward it.

Oct 30, 2003 | 04:43 AM

#11

rocklayer

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so according to that theary of to little back pressure being bad i quess i should maybe just try the muffler swap and see what happens.

Oct 30, 2003 | 06:37 AM

#12

wolfen

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From: Connecticut

Hi soksniffer,
Interesting fact!
See...another lesson learned!
I knew that backpressure had to be part of the exhaust system equation, but did'nt know where!
__________________________________________________
‘90 Ranger XLT: 2.3L, EEC-IV, EFI, DIS, 2wd, Mazda 5sp 127K/mi

Oct 30, 2003 | 06:37 AM

#13

soksniffer

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From: Whittier, CA

That's what I would try. Headers for Rangers (for my Ranger anyway) are really expensive anyway, and most start to crack and need to be replaced after just a few years.

Oct 30, 2003 | 10:49 AM

#14

robert marley

New User

Joined: Oct 2003

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removing silencer

i am brand new to FTE and i just got a 2003 3.0. I have about 400 miles on her and i would like to know how to remove my silencer to my air box. any help would be greatly appreciated.

thanks in advance.

2003 black x cab 2 door edge.

no mods, stock power =o(

Oct 30, 2003 | 02:10 PM

#15

Rand

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Joined: May 2002

Posts: 818

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From: northeastern ohio

Noobies... First you should start your own topic instead of replying to a topic with an OFF TOPIc question.

But to answer your question.
Take the top off the airbox.
take out airfilter
squirt wd-40 on the dowels in the bottom of the airbox
pull airbox out
yank the snorkel off the front and the other piece too thats in front of it.

Put everything back the way you found it minus the snorkel .

Rand