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eventhorizon

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My Car
1972 Mach 1 Q Code with factory ram air
The ram air flappers sit open, shouldn't they sit closed?  Doesn't it work by closing off the other openings and then opening the ram air scoop doors to get fresh air?

Thanks

Thomas

72 Q code

 
With the engine is off the flappers will be open. When you start and at idle for example the flappers will close. If you are driving normally the flappers will be closed and when you stomp on the gas the flappers will open because of the vacuum drop. The vacuum motors closes when the motor is producing a lot of vacuum.

 
eventhorizon,

The idea was to dump a bunch of cold fresh air during Wide Open Throttle action.Thus increase horse power. The one reason the 1973 mustangs with 4V engines did not have the Ram Air setup was it did not mean emission standards. Only the 2v engines came with ram-air for 1973.

mustang7173

 
The ram air flappers sit open, shouldn't they sit closed?  Doesn't it work by closing off the other openings and then opening the ram air scoop doors to get fresh air?

Thanks

Thomas

72 Q code
Also it does not close off the snorkel end / opening.

 
The ram air flappers sit open, shouldn't they sit closed?  Doesn't it work by closing off the other openings and then opening the ram air scoop doors to get fresh air?

Thanks

Thomas

72 Q code
Also it does not close off the snorkel end / opening.

Where does the snorkel end connect? I've never had mine hooked up.

Sent from my iPhone using Tapatalk

 
Look up the dynacorn ram air breather and you will see the air filter housing has the regular intake tube, the ram air just opens when at WOT.

 
The ram air flappers sit open, shouldn't they sit closed?  Doesn't it work by closing off the other openings and then opening the ram air scoop doors to get fresh air?

Thanks

Thomas

72 Q code
Also it does not close off the snorkel end / opening.

Where does the snorkel end connect?  I've never had mine hooked up.

Sent from my iPhone using Tapatalk
As for the snorkel ends:

Only 1973 has snorkel end that hooks to rectangular tubing.  1971 and 1972 snorkel remained open and flared on the end.

Ray

 
It was not that the 73 4-V did not pass the testing Ford forgot to test it and was not worth the time, effort and cost to do it. It was never tested even 71 & 72 they just got caught mid year of 72 without the required testing on 4-V cars.

David
David, where is your info from ...

Ray posted this info 9- 29 - 2016 -

Seems 71 would have been tested , explains why 72 and 73 didn't make it

1972 Mustang functional Ram Air

https://www.7173mustangs.com/uploads/avatars/avatar_451.jpg?dateline=1526051447[/img]

Boss1Ray

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#1

09-29-2016, 05:16 PM  

I found this information about Ram Air for 1972 Mustangs I had archived a few years ago.

While I cannot validate the accuracy of the story it is interesting.

1972 Mustang Ram Air

From Dan Davis (429megasite - via Boss302.com 2004)

Ever wonder why in 1972 the Mustang two barrel had ram air and no other 1972 Mustang engine combination did? This is what caused that to happen.

RAY EDIT: We know some early to mid-year 351-4V 1972 Mustangs DID receive functional Ram Air from the factory. Explanation below helps explain these too.




In 1971 I was involved with the local Mustang Club. {One of the members} was working in the Ford test track and was complaining about the amount of overtime he had to work. He had a 1971 Bright Blue Mach 1 with a 429 CJ. He had a car for daily driving and saved his Mach 1 for those nice evening cruises. His complaint was that he couldn’t enjoy his car at all since he was working nonstop.

At that time Ford would run every engine calibration for 50K for emission certification. This was engine, transmission and final drive gear combination. This was done on the Dearborn test track. All the mileage and emission test data was input into a key punch type system for recording and governmental inspection. That was {my friend’s} job. He was one of the data entry and record keeping persons.

Each drive train combination had to go through a 50k mile emission certification. There were many combinations that had to be proven out. Having ram air was another combination that had to be tested. He was anticipating the completion of the test cycles so he could get some time off to enjoy his? 71 Mach 1.

There were government prescribed maintenance intervals and tasks that could be done to the test cars. Only the allotted tasks could be performed at the set mileage.

For whatever reason, {Mr X}a supervisor at the test track decided one fine evening to have the mechanics slap a tune up on a car. It was, I believe, a Mustang with a 4 barrel 351 Cleveland. They were ahead of schedule and the car could be taken off the track. The next day, when management reviewed the data, they observed a spike in the readings. When {the supervisor} came in for his night shift they were waiting for him.

He was quite proud of the fact that he had ordered a tune up to assist in getting the cars to successfully pass the tests and be on time. Hello Houston, this is a big problem. Management went into orbit. The problem they faced was to keep it quiet and let life go on or tell the government. They called in the government and put it all on the table.

The final resolve was to repeat the test on the cars that were in process. Rather than doing the whole 1972 line up, the government agreed to let those that had completed the test go into production. Ford figured that if they had to repeat the entire test sequence on the 1972 line up they would be introducing 1972 models in 1973.

The company also looked at the driveline combinations and started pulling out those that would increase the testing time. There were some engine, transmission, body combinations that were scrubbed from the 1972 line up. An easy one to drop was ram air.

I figured they would have fired the test track supervisor for this, they didn’t. Seems {his boss} didn’t tell him about the maintenance. He just told him to run cars and get the tests done on time.

I remember that there were large numbers of new 1972 models locked down at the assembly plants. They couldn’t get sales release until the calibration for that drive line was certified.

{My friend} got to see even less of his beloved Mach 1. He was now on a 24/7 schedule. They had people quitting the job because of the work load and pressures put on them. The government group was camped out at the test track to insure that procedures were being followed.

Remember this occurred when the emission concerns were growing and everyone was paving the emission road as they drove down it. All the auto manufactures were scrambling to meet the requirements. The government was making up testing standards on a daily basis. This had the potential to cripple Ford Motor if they had not come forward when the mistake was discovered. The entire 1972 model line was at risk. They couldn’t have gone back to selling the 1971 model as they didn’t meet the 1972 standards.

This whole mess rated a little blurb in the newspaper that Ford had encountered a problem with the government testing requirements. Ford was working with the government to insure compliance.

This is the reason that some models have ram air and others don’t. It all depended on where their driveline was in the test cycle.

--------------------------------------------------------------


 
It was not that the 73 4-V did not pass the testing Ford forgot to test it and was not worth the time, effort and cost to do it. It was never tested even 71 & 72 they just got caught mid year of 72 without the required testing on 4-V cars.

David
David, where is your info from ...

Ray posted this info 9- 29 - 2016 -

Seems 71 would have been tested , explains why 72 and 73 didn't make it

1972 Mustang functional Ram Air

https://www.7173mustangs.com/uploads/avatars/avatar_451.jpg?dateline=1526051447[/img]

Boss1Ray

My Mail is Forwarded Here

tech.png


Joined: Mar 2011

Posts: 5,398

Reputation: 134

Region: Southwest

Location: Oklahoma

Custom User Image:


[align=center]

My location: click[/align]



#1

09-29-2016, 05:16 PM  

I found this information about Ram Air for 1972 Mustangs I had archived a few years ago.

While I cannot validate the accuracy of the story it is interesting.

1972 Mustang Ram Air

From Dan Davis (429megasite - via Boss302.com 2004)

Ever wonder why in 1972 the Mustang two barrel had ram air and no other 1972 Mustang engine combination did? This is what caused that to happen.

RAY EDIT: We know some early to mid-year 351-4V 1972 Mustangs DID receive functional Ram Air from the factory. Explanation below helps explain these too.




In 1971 I was involved with the local Mustang Club. {One of the members} was working in the Ford test track and was complaining about the amount of overtime he had to work. He had a 1971 Bright Blue Mach 1 with a 429 CJ. He had a car for daily driving and saved his Mach 1 for those nice evening cruises. His complaint was that he couldn’t enjoy his car at all since he was working nonstop.

At that time Ford would run every engine calibration for 50K for emission certification. This was engine, transmission and final drive gear combination. This was done on the Dearborn test track. All the mileage and emission test data was input into a key punch type system for recording and governmental inspection. That was {my friend’s} job. He was one of the data entry and record keeping persons.

Each drive train combination had to go through a 50k mile emission certification. There were many combinations that had to be proven out. Having ram air was another combination that had to be tested. He was anticipating the completion of the test cycles so he could get some time off to enjoy his? 71 Mach 1.

There were government prescribed maintenance intervals and tasks that could be done to the test cars. Only the allotted tasks could be performed at the set mileage.

For whatever reason, {Mr X}a supervisor at the test track decided one fine evening to have the mechanics slap a tune up on a car. It was, I believe, a Mustang with a 4 barrel 351 Cleveland. They were ahead of schedule and the car could be taken off the track. The next day, when management reviewed the data, they observed a spike in the readings. When {the supervisor} came in for his night shift they were waiting for him.

He was quite proud of the fact that he had ordered a tune up to assist in getting the cars to successfully pass the tests and be on time. Hello Houston, this is a big problem. Management went into orbit. The problem they faced was to keep it quiet and let life go on or tell the government. They called in the government and put it all on the table.

The final resolve was to repeat the test on the cars that were in process. Rather than doing the whole 1972 line up, the government agreed to let those that had completed the test go into production. Ford figured that if they had to repeat the entire test sequence on the 1972 line up they would be introducing 1972 models in 1973.

The company also looked at the driveline combinations and started pulling out those that would increase the testing time. There were some engine, transmission, body combinations that were scrubbed from the 1972 line up. An easy one to drop was ram air.

I figured they would have fired the test track supervisor for this, they didn’t. Seems {his boss} didn’t tell him about the maintenance. He just told him to run cars and get the tests done on time.

I remember that there were large numbers of new 1972 models locked down at the assembly plants. They couldn’t get sales release until the calibration for that drive line was certified.

{My friend} got to see even less of his beloved Mach 1. He was now on a 24/7 schedule. They had people quitting the job because of the work load and pressures put on them. The government group was camped out at the test track to insure that procedures were being followed.

Remember this occurred when the emission concerns were growing and everyone was paving the emission road as they drove down it. All the auto manufactures were scrambling to meet the requirements. The government was making up testing standards on a daily basis. This had the potential to cripple Ford Motor if they had not come forward when the mistake was discovered. The entire 1972 model line was at risk. They couldn’t have gone back to selling the 1971 model as they didn’t meet the 1972 standards.

This whole mess rated a little blurb in the newspaper that Ford had encountered a problem with the government testing requirements. Ford was working with the government to insure compliance.

This is the reason that some models have ram air and others don’t. It all depended on where their driveline was in the test cycle.

--------------------------------------------------------------
That is info I recalled. I was brief but this was not, lol.

David

 
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