The Supercar Registry

The Supercar Registry (https://www.yenko.net/forum/index.php)
-   Supercar/Musclecar Discussion (https://www.yenko.net/forum/forumdisplay.php?f=79)
-   -   ZL1 items (https://www.yenko.net/forum/showthread.php?t=92669)

Xplantdad 05-23-2007 01:27 AM

Re: ZL1 items
 
send them to me William... [email protected]

Xplantdad 05-23-2007 04:09 AM

Re: ZL1 items
 
Here are the pics that William sent to me... https://www.yenko.net/ubbthreads/imag...lins/beers.gif

http://i19.photobucket.com/albums/b1...ZL1engine1.jpg

Xplantdad 05-23-2007 04:09 AM

Re: ZL1 items
 
Next

http://i19.photobucket.com/albums/b1...L1engine22.jpg

Xplantdad 05-23-2007 04:09 AM

Re: ZL1 items
 
Last one

http://i19.photobucket.com/albums/b1...l1engine32.jpg

VintageMusclecar 05-23-2007 04:54 AM

Re: ZL1 items
 
Intersting...

Anyone else notice the carburetors in those pics of the #3 and #5 car (assuming they are in fact #'s 3 and 5)

They still have their factory-installed 4346 carbs instead of the 4296 units.

(FWIW...whaddayaexpect from a carburetor guy anyhow?!? https://www.yenko.net/ubbthreads/imag...mlins/grin.gif )

Eric

SuperNovaSS 05-23-2007 05:11 AM

Re: ZL1 items
 
Nice catch on the carbs. I wonder why those carbs are installed on ZL1s. The vette also looks to have a aluminum water outlet.


Jason

William 05-23-2007 05:28 AM

Re: ZL1 items
 
That is #3 for sure. Notice the missing nut on the upper alt bracket stud.

It is highly likely that is #5 based on it being a dark color automatic and the mention that it went to Shay Nichols. Gibb sold the #2 car shortly after he received it.

The #5 test was reviewed 30 years later by the original writer, Ro McGonegal in the June 1998 Hot Rod. He mentioned the car was built with a "vacuum secondary" carb and they swapped an 850, making traction worse. DH managed an 11.64/122 out of it with lousy traction-it was cold, early in the year as Gibb is wearing a top coat and the trees in the background are bare.

I guess #5 still exists but there is not much left.

VintageMusclecar 05-23-2007 05:42 AM

Re: ZL1 items
 
[ QUOTE ]
Nice catch on the carbs. I wonder why those carbs are installed on ZL1s....Jason

[/ QUOTE ]

I've heard several stories as to why the first cars were equipped with 4346 carbs instead of 4296's.

1) There was some sort of tuning issue with the 4296 carbs which delayed their release

-and-

2) There was an interference issue with the air cleaner base and the secondary pump lever on the 4296 carbs that had to be resolved before they could be installed.

I'm not saying either story is credible, they're just the most plausible ones I've personally heard so far.

Eric

William 05-23-2007 05:58 AM

Re: ZL1 items
 
An OE flat-bottom duct hood air cleaner has a vent tube with a 90º bend. The tube will contact the rear pump on a DP carb. Later vent tubes have 2 45º bends.

Notice the #3 car has a metal heater hose clamp; #5 built minutes later has a ty-wrap.

Mr70 05-23-2007 05:31 PM

Re: ZL1 items
 
I was wondering what the hell that was.
Nice photos.


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