OK...here is a joke:
#1
08-29-2005 | 09:05 PM
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OK...here is a joke:
There is this 40 year old guy who has never been married. He decides that he wants a women to marry, so he sets up a little contest.
He gets three candidates that he likes and gives them each $5,000. He instructs them to go make use of the money and come back in a week and tell him what they did. Based on their actions he will decide which one to marry.
Girl #1:
She goes to Fredricks and buys loads of sexy stuff, oils, and toys. The guy is really impressed with the presentation and tells her that he is really happy.
Girl #2:
She invests the money in an IPO. In one weeks she has turned the $5K into $50k and further reports to him that they will earn riches from this investment for the rest of their lives together. He is also really impressed with this and realizes that this could be a very hard decision.
Girl #3:
She buys an orphanage and starts a children's hospital for childen who fathers died in Iraq fighting for our country. Once again, he is really impressed with this girl to. This will not be an easy decision.
Who do you think he choose?
He gets three candidates that he likes and gives them each $5,000. He instructs them to go make use of the money and come back in a week and tell him what they did. Based on their actions he will decide which one to marry.
Girl #1:
She goes to Fredricks and buys loads of sexy stuff, oils, and toys. The guy is really impressed with the presentation and tells her that he is really happy.
Girl #2:
She invests the money in an IPO. In one weeks she has turned the $5K into $50k and further reports to him that they will earn riches from this investment for the rest of their lives together. He is also really impressed with this and realizes that this could be a very hard decision.
Girl #3:
She buys an orphanage and starts a children's hospital for childen who fathers died in Iraq fighting for our country. Once again, he is really impressed with this girl to. This will not be an easy decision.
Who do you think he choose?
#9
08-29-2005 | 09:27 PM
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Posts: n/a
Originally Posted by MT's#1BrokenMustang!
OK, here is the answer
He took the chick with the biggest ****.
He took the chick with the biggest ****.
uuuuhhhhhh................................. www.HelpBlakeFixHisCarFoundation.com
#13
08-29-2005 | 09:53 PM
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Originally Posted by 1FastGT
uuuuhhhhhh................................. www.HelpBlakeFixHisCarFoundation.com
#22
08-30-2005 | 09:29 AM
Senior Member
Joined: Apr 2005
Posts: 826
From: Louisville, KY
Intake Manifold Runner Controls from what i understand they where only on the 96-98 cobras. they're stuck. almost act like a second tb before the intake goes into the heads. or like the old 4 barrel carbs opening up at 3200 or 3500 rpms.
#24
08-30-2005 | 09:37 AM
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Joined: Mar 2005
Posts: 2,682
From: Philadelphia, PA
Originally Posted by cobra4123
blake found the source of all my problems.... it wasn't the water and unfortunaly it won't help you but it's the imrc's
#26
08-30-2005 | 11:05 AM
Huge Member
Joined: Jan 2005
Posts: 233
From: Charlotte/ Winston Salem, NC
The low down on IMRC's
IMRC cleaning is a fairly simple process. There are several writeups over at the Corral. And i've been meaning to do one for quite some time.
IMRC's stand for Intake Manifold Runner Control as stated above. Only 96-98 Cobra's had it. But "similar" setups are seen on the FR500 Intake, and the Lincoln Aviator Intake.
It was Ford's attempt to create (or salvage) Low end torque on these huge head DOHC cars. The early 4V Cobra heads...known as the "B-series" or "Swirl Port" Heads are unique, in that they have 2 seperate intake Port runners. A square shaped Primary port, and a round shaped Secondary Port. The IMRC's sit between the Lower Intake Manifold and the Cylinder Heads, and a shaft is attatched to butterfly valves that reside inside each secondary Intake port.
The reason for this is because, the B series cylinder heads have one of the largest intake port volumes ever produced. The primary Intake port is 107cc's, secondary being 115cc's. That's a total Intake Port of 222cc's of intake volume. Large intake volumes = poor intake charge velocity. The volume is too large on the B-series head. Which is why they make for amazing Forced induction heads...but comparatively speaking "****-poor" N/A heads (when compared to 99-01 C heads, FR500, or 03/04 Cobra heads.)
INTAKE VOLUMES OF VARIOUS MOD ENGINES (cc)
96 - 98 C 107 Primary/ 115 secondary 222 total
99 - 01 C 177
03 Cobra 177
FR500 160
96 - 98 GT 146
PI Heads 159
SVO 173
These butterflies remain closed from idle to ~3250 RPM's, an IMRC controller engages a motor that pulls 2 cables that open the butterflies (much like your throttle plate on a throttle body.) This subseqeuntly reduces the effective intake port volume, and enhances low RPM velocity. It is only moderately effective at improving low end torque.
The reason that the IMRC's become a problem is because the B series heads only inject fuel into the primary intake port. The PCV valve spits oil into the intake, and it becomes caked (anyone who has pulled the intake hat on a B series Car knows what i'm talking about.) The primary port is crystal clean...when compared to the secondary port, and that is because the primary port see's fuel. This fuel and air cleans the port, and the oil doesn't have the ability to stick or "gunk" up on the plates like on the secondary port.
So what happens is over time this Crud cakes up on the IMRC Butterflies..but more detrimentally on long turn radius and back of the secondary intake valve.
This decreases power significantly, and the IMRC's should be cleaned at least once a year. What's more is...if the IMRC's become so dirty that they cannot open...you are losing your other intake valve...and performance will suffer greatly.
IMRC's can be deleted, but on a stock or near stock car it isn't worth the driveability issures, and loss of low end torque. Only on Short runner cars, pulling more RPM's or significant Rear end gear with many bolt on's...or Forced Induction cars should delete IMRCs.
Anyway...now you all know!
IMRC's stand for Intake Manifold Runner Control as stated above. Only 96-98 Cobra's had it. But "similar" setups are seen on the FR500 Intake, and the Lincoln Aviator Intake.
It was Ford's attempt to create (or salvage) Low end torque on these huge head DOHC cars. The early 4V Cobra heads...known as the "B-series" or "Swirl Port" Heads are unique, in that they have 2 seperate intake Port runners. A square shaped Primary port, and a round shaped Secondary Port. The IMRC's sit between the Lower Intake Manifold and the Cylinder Heads, and a shaft is attatched to butterfly valves that reside inside each secondary Intake port.
The reason for this is because, the B series cylinder heads have one of the largest intake port volumes ever produced. The primary Intake port is 107cc's, secondary being 115cc's. That's a total Intake Port of 222cc's of intake volume. Large intake volumes = poor intake charge velocity. The volume is too large on the B-series head. Which is why they make for amazing Forced induction heads...but comparatively speaking "****-poor" N/A heads (when compared to 99-01 C heads, FR500, or 03/04 Cobra heads.)
INTAKE VOLUMES OF VARIOUS MOD ENGINES (cc)
96 - 98 C 107 Primary/ 115 secondary 222 total
99 - 01 C 177
03 Cobra 177
FR500 160
96 - 98 GT 146
PI Heads 159
SVO 173
These butterflies remain closed from idle to ~3250 RPM's, an IMRC controller engages a motor that pulls 2 cables that open the butterflies (much like your throttle plate on a throttle body.) This subseqeuntly reduces the effective intake port volume, and enhances low RPM velocity. It is only moderately effective at improving low end torque.
The reason that the IMRC's become a problem is because the B series heads only inject fuel into the primary intake port. The PCV valve spits oil into the intake, and it becomes caked (anyone who has pulled the intake hat on a B series Car knows what i'm talking about.) The primary port is crystal clean...when compared to the secondary port, and that is because the primary port see's fuel. This fuel and air cleans the port, and the oil doesn't have the ability to stick or "gunk" up on the plates like on the secondary port.
So what happens is over time this Crud cakes up on the IMRC Butterflies..but more detrimentally on long turn radius and back of the secondary intake valve.
This decreases power significantly, and the IMRC's should be cleaned at least once a year. What's more is...if the IMRC's become so dirty that they cannot open...you are losing your other intake valve...and performance will suffer greatly.
IMRC's can be deleted, but on a stock or near stock car it isn't worth the driveability issures, and loss of low end torque. Only on Short runner cars, pulling more RPM's or significant Rear end gear with many bolt on's...or Forced Induction cars should delete IMRCs.
Anyway...now you all know!
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