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102481 Posts in 12091 Topics by 4669 Members
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61  Model Specific Discussions / Trans-Am Camaros / Re: For All of You That Want to Own A Trans Am Race Car on: July 12, 2012, 08:46:12 PM
Not sure about it being sold, found this on the Auctioneer's Internet website:

50 bids" alt
1970 Chevy Camaro; Yellow; Svra Historic Racecar 6-0126; Historic Trans Ame
Lot #165
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Sold for: $48,000.00
This lot was not sold.
Reserve Not Met
"Tax, Shipping & Handling and Internet Buyer's Premium not
included. See Auction Information for full details."
Payment Type:
Payment Type: Please Add / Select Card
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62  Model Specific Discussions / Trans-Am Camaros / Re: For All of You That Want to Own A Trans Am Race Car on: July 11, 2012, 08:18:44 PM
Its a sad tale about Dale Phelon. 
The auction house seemed to be very apprehensive about releasing any information about the car before the bidding began.
Maybe we will eventually see the car in the west coast group.....
How about it Robert? It would be nice to rekindle an old friendship with that car!
63  Model Specific Discussions / Trans-Am Camaros / Re: For All of You That Want to Own A Trans Am Race Car on: July 11, 2012, 09:56:50 AM
Phelon Motorsports Auction 7-10-12
 Originally listed as a Dick Hoffman car, later only as:
     Lot Description:
1970 Chevy Camaro; Yellow; SVRA Historic Badge 6-0126; Historic Trans American Sedan Registry TA-022; SCCA Trans AM Brass Tag 79-258; Steel Head/Block 310 Cubic Inch Roller Cam; Holley 750 CFM Carburetor; 4 Speed Richmond T-10 Super Duty Transmission; 4:00 Rear Gear; Corvette Calipers Front and Rea

Bid to $48,000
64  Model Specific Discussions / Trans-Am Camaros / Re: TRACO Fans on: June 25, 2012, 12:24:57 AM
Great history on George Bolthoff.  Good reading and period photos.
Thanks Jon and Robert Barg!
65  Model Specific Discussions / Trans-Am Camaros / Re: TRACO Fans on: June 24, 2012, 06:02:50 PM
That's some good "hands on" information Pigpen. Thank you.  The oiling issues will probably haunt AMC forever. That is a excellent suggestion about the Traco Lifter Retainer controlling the oil splash. As you are aware the Traco AMC intake has provisions for the stock rear PCV valve. The factory design is notorious for sucking oil up the PCV if a valley pan type gasket is not used. I don't use the pan type intake gaskets, and have never had an issue with oil being sucked into the PCV. I believe, as you have stated the Traco Lifter Retainer keeps the oil splash down and away from the intake. Just another example of the engineering that Traco is so famous for.
66  Model Specific Discussions / Trans-Am Camaros / Re: TRACO Fans on: June 23, 2012, 10:13:31 AM
   It looks like there is also a photo of a "young" fellow doing some valve spring work here: under Reply#8. 
Very interesting info on the four bolt block, small journal/ large journal choices.  During that time frame, Traco apparently was "cutting edge" when it came to reciprocating weight. The stronger and  lighter weight Carillos must have made quite a difference in engine longevity.
   In the above article from Swede70, the AMC story from Jean Calvin, on page 171.  There is a photo of the valley of the AMC block. I see it has been modified for the single oil feed line that feeds additional oil to the gallery above the #4 main. I have also seen a Traco modified block that had four additional lines feeding that same gallery above each of the mains. As you know, the mains in the AMC's are fed after the lifters and cam bearings. These modifications generally help insure oil getting to the mains. Did Traco start off with the single line and ended up finding the need to use all four, or did you find the single line was sufficient?  I machined an oil log manifold in the valley for one of my AMC wet sump engines that feed the mains priority style and restrict oil to the lifters and top end.  I have had an engine failure with the single feed line in the past, but not 100% sure I can blame it on the oil feeds.
     As a side note, I also see in that same photo what appears to be the 1/4" studs in the valley to hold the special Traco AMC lifter retainer plate!
67  Model Specific Discussions / Trans-Am Camaros / Re: Websites that might be of interest to us on: June 22, 2012, 10:34:34 AM
Thanks Mike for sharing all your research. This Flicker link looks like it will keep me busy for hours! The photos are spectacular!
68  Model Specific Discussions / Trans-Am Camaros / Re: TRACO Fans on: June 22, 2012, 10:30:03 AM
    I'm not familiar with any of those eastern tracks, but you sure gave a good visual for me! I feel my stomach turning with that wall coming up!

I have some more engine questions for you.
    In recent years, it has become common practice for engine builders to use a smaller rod journal size when available.The smaller journal reduces bearing speed, cuts some frictional loss and brings up the horsepower some.  The Chevy 302 started life in 1967 with a small journal rod size of 2.000". In 1968 all small block production went to the large journal design of 2.100" including the 302.  The large journal blocks also incorporated the four bolt mains which were not available in previous small blocks.
    Did Traco choose to use the 4bolt/ large journal blocks over the small journal variety? I wonder if any power differences were observed on the dyno or track between the two. I suppose they had the option of using the 4bolt/large journal blocks and turning down the large journal crank throws to the small journal size.
    In general, were you in search of these types of smaller horsepower gains?
Thanks again for your contributions,
69  Model Specific Discussions / Trans-Am Camaros / Re: TRACO Fans on: June 16, 2012, 11:06:11 PM
     Thanks so much. Those long hours must have been tough for sure.  The travelling really takes its toll also.  I would suspect your children learned to appreciate you even more when you came home.  As far as that big blur, that's probably a blessing too.  We have a knack to forget life's unpleasant experiences.....  It's nice to hear you are enjoying the "good time memories". We are too!
      You have a Great Father's Day, and a special Father's Day greeting to your Dad!
70  Model Specific Discussions / Trans-Am Camaros / Re: TRACO Fans on: June 14, 2012, 10:01:26 PM
Pigpen,  I don't want you to think you are forgotten!   
Do you recall Traco using any of the Crane ported heads talked about here:  I would think they may have been worth a try on the Dyno if nothing else, considering their pricing, and availability.
71  Camaro Research Group Discussion / Mild Modifications / Re: Quadrajet tuning specs on: June 09, 2012, 07:47:45 PM
Hi Steve,
   The following pages are out of my Rochester collection. They are from the November 1971 set, pertaining to original equipment 350 Quadrajets. They list the original Carburetor part numbers, with all parts. I also included the adjustment and tune up specs for your info.

72  Model Specific Discussions / Trans-Am Camaros / Re: 1969 Wolverine Trans-Am photos on: June 05, 2012, 11:41:52 AM
Hello Octard,
  OK that makes sense now. These period photos have so much history in them. I find myself starring not only at the cars but the buildings and people too!
Thanks for the correction,
73  Model Specific Discussions / Trans-Am Camaros / Re: 1969 Wolverine Trans-Am photos on: June 05, 2012, 11:06:27 AM
In the last photo, there is just a glimpse of what appears to be the right front of a 1963 Ford Falcon. If I'm seeing correctly, it might be Mike E's  car originally driven by James Taylor, although I wasn't aware it was raced that late.
74  Model Specific Discussions / Trans-Am Camaros / Re: TRACO Fans on: June 04, 2012, 11:21:26 PM
Thanks for the follow up Pigpen.
 I suspect those early carbs may have been versions of the Holley 4224 and 4223S and possibly the 4543S. The first being the center squirt 660 cfm and the later two being an 850cfm configuration, also center squirters. These carbs were of the 1 to 1 primary and secondary throttle opening variety. They used a cam type linkage with the central 50cc accelerator pump to achieve a smooth opening of all throttle blades simultaneously, and inwardly as you suggested.

The 850 cfm versions were popular on the Big Blocks in a single 4V application, and also could be used in pairs on a potent Big Block. L88's were a common home for them.
The 660's may have been tried on the 302's.  The pair of 660's on my AMC Traco intake are setup  as you mentioned with the air horns machined off. The inward throttle blade opening is necessary for proper fuel distribution with the intake design. Also of note,the 4224 660's are the carbs listed in the SCCA Javelin Trans-Am Homologation papers. They are to be used in pairs.

I believe the Holley List 4778 is rated at a 700 cfm capacity, and has undergone several revisions.

The bottom line on these carbs with simultaneous opening secondaries is you better be positioned properly before putting your foot in it!
75  Model Specific Discussions / Trans-Am Camaros / Re: TRACO Fans on: May 25, 2012, 01:54:45 PM
Hello Pigpen,
  In an earlier post, a Chevrolet inline dual four barrel was mentioned.
"The Chevy factory supplied TRACO with a dual in-line 4-barrel prototype manifold (not the Cross Ram) on which we spent a lot of time gluing in runners at the bottom of the plenum to equal out the flow, eventually the factory modified their pattern to match what we'd done and a number of the manifolds were produced. We also performed a similar series of tests for the Cross Ram, which Chevy used to make improvements."
   I'm curious about the inline carbs used. Do you recall the type? Is it possible Webers were used, or maybe something GM prototyped?
   It sure would be interesting if the Chevy dual inline four barrel manifold surfaced.
Thanks for all of your contributions!
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