Dyno Sheet Petition

[tomtom72]

Good Afternoon,

I am a member of the ZR-1NetRegistry. Our Registry is devoted to the preservation of the fourth generation Corvette ZR-1. Most of our members actually own one of these fine examples of GM's engineering prowess. I own a 1990 car number 2233. My particular interest in writing is to respectfully request that owners of this wonderful machine, having proved ownership, be allowed to obtain copies of their car's motor dyno test results.

In the realm of mass produced automotive motors our LT5 motors are a high water mark in that these motors were, and still are, the only hand built motors in any GM product for public consumption. I wish to be very clear that our LT5's were not just 'hand assembled'. LT5 components arrived at the Stillwater, Oklahoma Mercury Marine plant mostly as unfinished castings. Mercury Marine employees had to finish machine the major components and then assemble the motor. Once completed each motor was tested in an engine dyno test cell for performance verification and mechanical break in. Having passed it was then released to the Bowling Green plant for assembly into a ZR-1 chassis. As a consequence of this method of production each LT5 has a "birth certificate", it has a dyno test sheet. This dyno sheet was kept with each motor as it's own 'build sheet' and when it was joined to a ZR-1 chassis the chassis number was stamped on the motor at that time. This is a subtle point, but it completes the numbers matching documentation that all Corvettes enjoy to this day.

I would add that the National Corvette Museum has custody of these dyno test sheets as it is one of their preservation functions where the history of the Corvette is concerned. They are the guardians of all the original documentation of all Corvettes produced at the Bowling Green plant. I should think that as they offer reproduction window stickers and build sheets presently, they would be very receptive to augmenting their income stream with offering reproduction LT5 dyno test sheets.

I would close by thanking you for your time and for any assistance you could provide in our quest to complete the documentation of our ZR-1 Corvettes.

Respectfully,
Thomas Del Guidice thomastom72@aol.com

respond to: leegaffigan@yahoo.com

Okay so this is the direction that I chose to take with my e-mail. I hope it is enough on message with everyone else?

[LGAFF]

This is just to get something started and get some attention....GM owns this museum I believe so maybe getting in touch with someone who understands the "heritage part would be a good start

[A26B]

I recommend correcting the name of our organization to its proper form, ZR-1 Net Registry, instead of ZR-1 Registry.

[LGAFF]

Noted Jerry, I shot a copy to Bob Lutz, he apparently still has an e-mail accnt at GM

[PhillipsLT5]

Sent in mine, blind cc to you Lee, also great letter
Can JVD help with this?
At this point 20 years later Marc's sheet supersedes these sheets, but Provenance, from the French provenir, "to come from", refers to the chronology of the ownership or location of an historical object

[HAWAIIZR-1]

Sent mine in too.

[XfireZ51]

Does anyone know if the service engines have dyno sheets? I am certain some of us have ZRs with motors swapped or having been replaced.

[Kevin]

This was sent to me anonymously, I don't know anything about it other then the sender asked me to post it. As to what end I was asked I don't know. I don't know what car, I don't know what year, all I know is the motor didn't meet the hp #'s it was supposed to. Please don't email me asking where I got the picture or how the person who sent it to me got it. I won't answer the first and I don't know the answer to the second.

[A26B]

Well, I do know the guy who dyno tested that engine at Mercury! :-)

One thing thsat may have to be considered....
VIN was stamped on the engine at BG, not Stillwater
therefore
the dyno sheets will not have the VIN, but rather the Mercury SN
so
You would have to get the numbers from your engine to know which dyno sheet to request, if it ever becomes available.

[LGAFF]

Dwayne Sharpton, he was there up until the end I believe.....cool


Note the Dyno sheet says built with pride in Stillwater....


Pretty close......