edelbrock intake manifold

smokin95vert

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Oct 30, 2005

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Gettysburg,PA

Mar 31, 2006

#1

• Mar 31, 2006

• #1

Well i got a edelbrock intake installed. And it feels like i lost my power brakes some times. Like most the time you have to pump them a couple times to stop. thanks jay

 

Davin

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Mar 9, 2000

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Jacksonville, FL

Mar 31, 2006

#2

• Mar 31, 2006

• #2

Is this just a comment you posted or do you have a question that goes along with it?

 

M

Makdaddymac

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May 28, 2005

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orlando

Mar 31, 2006

#3

• Mar 31, 2006

• #3

obviously he asking what o do about his brakes...
ps. do you have to ge a ew TB and a cai to install any kind of new manifold..

 

smokin95vert

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Oct 30, 2005

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Gettysburg,PA

Mar 31, 2006

#4

• Mar 31, 2006

• #4

Well im try to fix my brakes.
I would say yes. The reason i got mine got the intake and tb and elbow for 150 cause it wass craked One of the feet broke on the inatke and the guy said it would be alot to have fixed so he sold it cheap and i got it fixed for 20 dollars from a friend. thanks jay

 

94gts

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Jul 4, 2004

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Carmel, New York

Mar 31, 2006

#5

• Mar 31, 2006

• #5

sounds like a vacuum leak

 

Killercanary

The car that set the bar.

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Nov 29, 1999

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Altoona, PA

Mar 31, 2006

#6

• Mar 31, 2006

• #6

94gts said:

sounds like a vacuum leak

Click to expand...

I agree.


Joe (VibrantredGT) recently had a similar problem if I'm not mistaken and it turned out to be a faulty vacuum line. I'd bet money this is your problem. You may have to remove the upper intake (its EASY to do) and check and recheck all your lines. Is it idling OK?

 

Davin

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Mar 9, 2000

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Mar 31, 2006

#7

• Mar 31, 2006

• #7

Makdaddymac said:

obviously he asking what o do about his brakes...
ps. do you have to ge a ew TB and a cai to install any kind of new manifold..

Click to expand...

OK Captain Obvious. BTW leaving out letters "ge a ew " and punctuation ("?")? does not help readers to understand the intent of your posts. Please take this into account when you hit post #11.

smokin95vert - get a vacuum guage and measure the vacuum of your intake manifold. If it is not steady there is probably a leak. Here are the possibilities:
1. Plugs, stems, or rear manifold plate are not properly sealed.
2. The welding of the "foot" back onto the manifold may keep it from sealing with the lower. You may need to check and see if it is level and it may need resurfacing (mild blueprint).
3. Vacuum or PCV hose off.

Assuming you have a stock cam, there is no real reason that your vacuum should be excessivly low.

If all else fails, you can add a vacuum canister to increase the vacuum available to the brake booster.

 

smokin95vert

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Oct 30, 2005

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Gettysburg,PA

Mar 31, 2006

#8

• Mar 31, 2006

• #8

actually it idles like crap tll it warms up. And The bottom of the intake is level at it milled after he welded it on. But im going to check all the vacuum lines right know let you all know. thanks for the help. thanks jay

 

69clark

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Sep 25, 2002

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Ravena, NY

Mar 31, 2006

#9

• Mar 31, 2006

• #9

Must be a vaccum leak. Especially if it worked before you did the work to it.

 

Davin

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Mar 9, 2000

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Jacksonville, FL

Mar 31, 2006

#10

• Mar 31, 2006

• #10

Hey Clark, I just got off the pot where I was reading about your ride in M&FF, lool nice

 

69clark

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Sep 25, 2002

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Ravena, NY

Mar 31, 2006

#11

• Mar 31, 2006

• #11

Thanks, (I think?)

 

smokin95vert

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Oct 30, 2005

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Gettysburg,PA

Mar 31, 2006

#12

• Mar 31, 2006

• #12

Well i do have a boost gaguge hooked up and it stays at about 10 vacuum. While driving and about 11 or 12 at idle. Does this sound right. I went out and put zippy's on all the vacuum lines i could see. But i didn't take of the upper no time before work. thanks jay

 

Swarzkopf

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Sep 23, 2004

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Pittsburgh

Mar 31, 2006

#13

• Mar 31, 2006

• #13

10-11 lbs of vacuum is too low.

I'm worried about mine, and I'm at 16 cold/17 hot at idle.

A healthy stock 5.0 should be between 17-22 at idle...with your cam, roller rockers, and aftermarket intake manifold I'd expect you to be more like 15-16...at least 14-15.

You must have a rather large vacuum leak somehwere.

 

Davin

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Mar 31, 2006

#14

• Mar 31, 2006

• #14

Someone correct me if I am wrong but I am under the impression that a vacuum leak will always correspond with a "bouncing" needle on the vacuum guage. (not sure about a boost guage, it might be giving an average) Also, doesn't a boost guage measure the vacuum in addition to the atmospheric pressure (or do you have it hooked up differently)? If so, I believe that puts your vacuum closer to 24 psi which is plenty. Let us know.

 

smokin95vert

Member

Oct 30, 2005

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Gettysburg,PA

Mar 31, 2006

#15

• Mar 31, 2006

• #15

Well after fixin what i fixed earlyer i atleast have brakes know. I will have to check it seems to be running fine.Plus i listened for a leak and i don't hear any like whistle noise you know.So I don't know if it might be the size of the vacuum hose or not. Thanks jay

 

S

Stang D

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Jan 23, 2006

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Quad Cities, Iowa

Mar 31, 2006

#16

• Mar 31, 2006

• #16

Someone correct me if I am wrong but I am under the impression that a vacuum leak will always correspond with a "bouncing" needle on the vacuum guage.

Click to expand...

No, that isn't necessarily so. A single bad intake valve can cause a bouncing needle. A large vacuum leak, like a brake booster hose can cause a fairly steady, but low vacuum reading.

 

Swarzkopf

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Sep 23, 2004

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Mar 31, 2006

#17

• Mar 31, 2006

• #17

Quite honestly, I thought that by "boost gauge" he meant "vacuum gauge"...what is a "boost gauge"? Besides the type that measures turbo/supercharger boost...

Plus i listened for a leak and i don't hear any like whistle noise you know.

Click to expand...

You often won't hear a vacuum leak.

So I don't know if it might be the size of the vacuum hose or not.

Click to expand...

As long as the hoses all fit the the fittings properly, size of hose does not effect the vacuum reading- for example, measure the vacuum at your brake booster, and then measure the vacuum at the your fuel pressure regulator line. Same reading.