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#1
11-11-2016, 03:15 PM
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73 Ram Air Formula 400?
Did they make a Functional Ram Air 400 in 73? Are there any tricks to tell if it is a real RA car without PHS?
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 1979 W72 Fire Am 1976 Fire Am |
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#2
11-11-2016, 05:16 PM
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I believe Ram Air was optional on any Formula in 1973.
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Some guys they just give up living And start dying little by little, piece by piece, Some guys come home from work and wash up, And go racin' in the street. Bruce Springsteen - Racing In The Street - 1978 |
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#3
11-11-2016, 05:43 PM
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I have a '73 Formula with factory ram air. It's easy to add the option, so I would recommend ordering the PHS.
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69 GTO Judge, Liberty Blue/Parchment, RA3, 4-speed 69 GTO, Verdoro Green, Green, 400, 4-speed 69 Firebird 400, Starlight Black/Black, RA3, 4-speed, 611 RA Inlet |
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#4
11-11-2016, 05:55 PM
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Thanks. Also, can you tell me where the part number is located on the RA breather?
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1979 W72 Fire Am 1976 Fire Am |
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#5
11-11-2016, 06:15 PM
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Here are some pictures of the original air cleaner before I had it powder coated. I'm not sure if it has a part number on it. I'm not near the car, so I can't check that now.
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69 GTO Judge, Liberty Blue/Parchment, RA3, 4-speed 69 GTO, Verdoro Green, Green, 400, 4-speed 69 Firebird 400, Starlight Black/Black, RA3, 4-speed, 611 RA Inlet |
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#6
11-11-2016, 06:22 PM
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More pics.
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69 GTO Judge, Liberty Blue/Parchment, RA3, 4-speed 69 GTO, Verdoro Green, Green, 400, 4-speed 69 Firebird 400, Starlight Black/Black, RA3, 4-speed, 611 RA Inlet |
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#7
11-11-2016, 06:25 PM
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And the car.
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69 GTO Judge, Liberty Blue/Parchment, RA3, 4-speed 69 GTO, Verdoro Green, Green, 400, 4-speed 69 Firebird 400, Starlight Black/Black, RA3, 4-speed, 611 RA Inlet |
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#8
11-11-2016, 07:14 PM
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dreamn69, does it have the "Keep your GM" decal on it still?
Do you have a picture of the underside of it? 1969 Ram Air, did you keep your decal? If so, do you think I can use it to make repros? Also, when was your car built? |
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#9
11-11-2016, 09:58 PM
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73 Ram Air Cleaner
HFR I just purchased a 73 455 RA Formula a few months ago. It will be a couple of days before I go to the storage building, but I can get a picture of it for you. It is a 27,000 mile car so it should still have it on it. Rick
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#10
11-11-2016, 10:00 PM
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Sorry, I can't have it made from a picture, I need the original.
And, does your air cleaner have the style clips shown in the pictures above? Would like to know the build date of yours too, after figuring out what clips were used. And, here is my old repro decal (made myself, just not accurate). Last edited by Held for Ransom; 11-11-2016 at 10:09 PM. |
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#11
11-12-2016, 09:00 AM
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Quote:
Note: I believe 400 and 455 RA air cleaners are different.
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69 GTO Judge, Liberty Blue/Parchment, RA3, 4-speed 69 GTO, Verdoro Green, Green, 400, 4-speed 69 Firebird 400, Starlight Black/Black, RA3, 4-speed, 611 RA Inlet |
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#12
11-12-2016, 10:05 AM
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Saw your invoicing, looks like late April build.
Where did you hear there were 2 different RA air cleaners for '73? |
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#13
11-12-2016, 10:53 AM
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Quote:
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69 GTO Judge, Liberty Blue/Parchment, RA3, 4-speed 69 GTO, Verdoro Green, Green, 400, 4-speed 69 Firebird 400, Starlight Black/Black, RA3, 4-speed, 611 RA Inlet |
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#14
11-13-2016, 07:41 PM
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It is a car I am considering purchasing. it did not have the decal any longer.
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1979 W72 Fire Am 1976 Fire Am |
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#15
11-13-2016, 08:06 PM
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I've never heard anything about there being two different ram air cleaners in 1973. I know there were two different ram air cleaners in 1971 & 1972, one for round port engines and one for D-port.
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#16
11-13-2016, 09:17 PM
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There were two different style of clips used on the underside of '73 Ram Air air cleaners, but I don't think it was applicable to what engine was installed.
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#17
11-14-2016, 06:50 AM
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Speaking of underside clips...any sources for these? Anyone have a few extras?
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Mike/Illinois |
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#18
11-14-2016, 03:13 PM
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Quote:
I've got a couple of donor air cleaners you can take them off of. |
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#19
11-16-2016, 04:05 AM
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All the 455 air cleaner will have 2 Hot air Therms, ( vacuum flappers in the snorkel, WU3 or Not, and till 1976) with 2 heat riser tubes, where the 400 cars only had one, and therefore only one heat riser tube. This also means that the vacuum system is different and some of the clips on bottom may not be present on a 400 air cleaner sub assembly. On a 455 unit only one side works( fresh air) AFTER engine is warm. Once the 455 is all warmed up the other snorkel "Can" operate, but only at WOT....'72 is set up this way as well. On a 400 car, the Heat riser "SIDE" only works at WOT after warm up, while the other is "free air" . keep in mind the 400 was a hotter engine.
This info is NOT new , has been discussed, and youll see it in your service manuals 400 Air cleaner pic RPO WU3
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"The Future Belongs to those who are STILL Willing to get their Hands Dirty" .. my Grandfather Last edited by Formulabruce; 11-16-2016 at 04:14 AM. |
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#20
11-16-2016, 04:18 AM
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Quote:
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"The Future Belongs to those who are STILL Willing to get their Hands Dirty" .. my Grandfather |
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