New Headers???

S

Stevejr

Member

Dec 17, 2008

63

0

6

Humboldt Tn

Apr 4, 2009

#1

• Apr 4, 2009

• #1

I bought some new headers and now egr tube is too short. I had a set of BBK headers,and I got a new set of Mac headers and the erg port is in a different spot so the old one is too short. Any ideas how to fix this?

 

j_lutter31

Member

Apr 7, 2008

79

2

19

Central South Dakota

Apr 4, 2009

#2

• Apr 4, 2009

• #2

tear the egr off and throw it away.....sorry bud, i had to say it.....

 

02 281 GT

Agreed...My wife has great Boobs

15 Year Member

Feb 3, 2009

3,207

1,968

194

Cabot, AR

Apr 4, 2009

#3

• Apr 4, 2009

• #3

Do you have an intake spacer? The EGR tube supplied with BBK headers is only long enough for use if you don't have an intake spacer. I would just remove the EGR and be done with it. I removed the EGR from my Cobra and had a guy I know fab a block off plate and plug for the EGR bung on the header. I have an SCT 4-bank chip, but even when I set it on the stock tune it didn't throw a CEL.

 

Adam95GT

New Member

Aug 14, 2006

2,564

3

0

Burlington, NJ

Apr 4, 2009

#4

• Apr 4, 2009

• #4

MACS use the stock egr tube bbk uses their own

you can always make your own out of a copper tube with a cheap flair tool and a bender...

im 99% sure of my awesome answer.

 

99FiveOh

15 Year Member

May 20, 2006

2,051

20

99

J-Ville, FL

Apr 4, 2009

#5

• Apr 4, 2009

• #5

Question: If one were to cap the header bung and the EGR valve itself, and then just leave the EGR valve functioning as is, would it all work? The computer would still think the EGR was working, but I'm not sure what it would do to A/F ratios and timing curves.

 

Adam95GT

New Member

Aug 14, 2006

2,564

3

0

Burlington, NJ

Apr 4, 2009

#6

• Apr 4, 2009

• #6

The_Mustang said:

Question: If one were to cap the header bung and the EGR valve itself, and then just leave the EGR valve functioning as is, would it all work? The computer would still think the EGR was working, but I'm not sure what it would do to A/F ratios and timing curves.

Click to expand...

I would think the a/f raito would be off due to a greater oxygen and nitrogen content in the combustion chamber compared to the carbon dioxide that could be there from egr.

 

99FiveOh

15 Year Member

May 20, 2006

2,051

20

99

J-Ville, FL

Apr 4, 2009

#7

• Apr 4, 2009

• #7

Off a little or off alot? I mean, if you do the "half open" trick with the EGR sensor, what does that do for your A/F ratio? The computer would still think the EGR was working and adjust maps accordingly. Just keeps the CE light from coming on, correct?

 

S

Stevejr

Member

Dec 17, 2008

63

0

6

Humboldt Tn

Apr 4, 2009

#8

• Apr 4, 2009

• #8

I was told if I block it off I will lose fuel mileage I drive over a 100 miles a day. So I need a stock egr tube is all.

 

T

Telewanger

New Member

Apr 4, 2009

26

0

1

Apr 5, 2009

#9

• Apr 5, 2009

• #9

I am an aircraft mechanic, so I just made one. Get a piece of 1/2" flexable soft copper pipe at the hardware store, about 2 feet long. This will make bending easier.

If you know a plumber you can borrow his tube flaring kit, or rent one from a plumbing store.

Put the two nuts on the soft copper pipe, back to back. Flare one end of the pipe to the correct size. bend it to the correct contour. Measure it to fit. Now flare the other end to the proper size.

This is how we do it on aircraft all day long, except we use aluminum or brass.

 

WhiteCobra95

10 Year Member

May 2, 2006

626

171

74

Apr 5, 2009

#10

• Apr 5, 2009

• #10

Plugging the EGR will not mess up your fueling. It's inert gas, and only functions at part load where you should be at lambda =1 (14.7:1), so you're not reaspirating raw O2 or unburned HC. I did what you mentioned about 4 years ago; I made a solid gasket to put in between the EGR valve and the intake, but left the valve plugged in so that the ECU can still see it move and not set a driver stage fault. I also threw a cap over the EGR port just for backup and to clean up the look.

The fuel mileage and part load spark timing is a legitimate concern. EGR does improve fuel economy by reducing pumping losses and the inert gas in the chamber allows you to run more spark at part load since it slows down the rate of combustion. I haven't heard any type of part load knock on my car so I'm not concerned. Detroit is a pretty flat place, so if I lived in the mountains or an area with a lot of higher load up-hill cruising I would probably be more concerned. The best way would be to us a Tweecer to just turn it off.

 

99FiveOh

15 Year Member

May 20, 2006

2,051

20

99

J-Ville, FL

Apr 6, 2009

#11

• Apr 6, 2009

• #11

So I could take the tube out, cap off the EGR and header and be good to go!?

 

8

86LXPONY

New Member

Jan 9, 2010

2

0

0

Jan 10, 2010

#12

• Jan 10, 2010

• #12

im a beginner altogether. what are the best aftermarket headers for 351W heads? If so is it worth it to spend the extra money on ceramic coating, and long tubes?