Dedicated to the Promotion and Preservation of American Muscle Cars, Dealer built Supercars and COPO cars. |
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#41
03-12-2006, 05:17 PM
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Re: 70 GTO question
And here is the last shot showing the overall front configuration... We are currently finishing one more "stock set" and then will build one custom set for a local street rodder. Later this summer, we plan to build a handful more for our own cars and a couple of musclecar enthusiasts.
Tom 
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#42
03-12-2006, 07:14 PM
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Re: 70 GTO question
Nice work Tom....any idea of how many VOE cars were sold ???
How does the vacuum actuall hold the valve open on low vacuum situations ?
__________________
 <span style="font-weight: bold"> (__{B}_____]]]]~~~~</span>Don't mess with old farts - age and treachery will always overcome youth and skill! Bullshit and brilliance only come with age and experience.
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#43
03-12-2006, 07:37 PM
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Re: 70 GTO question
Official documents show 233 and there were also dealer installed units. I bet the total is less than 270 but that is my guess only.
They have a vacuum can between the manifold's vacuum source and the switch and they have a check valve between the manifold vacuum source and the can. The can is evacuated and then the check valve keeps the engine's loss of vacuum (increase in pressure) from affecting the actuator and letting it go back to normal mode. As long as the can is evacuated and you have no leaks in the system, they stay open. I have pulled a vacuum on these and let them set overnight. The next day, they are still wide open so the system works pretty well. Tom
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#44
04-09-2006, 06:19 PM
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Re: 70 GTO question
We completed another set and here are the sound levels recorded on my 69 340 Cuda.
Closed Open Idle (700 rpm) 68 dBA 78 dBA 2200 rpm 81 dBA 91 dBA 3500 rpm 88 dBA 99 dBA This set will be installed on one of the true VOE 1970 GTO's still left.
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Linear Mode
