Trivia Question........anyone know what this Vette Doctors Black Box is?
 

Found this black box on my car recently and not sure what it is. I'm going to call Vette Doctors this week as I'm sure they know. The builder, Clint Hooper thinks it is to adjust the speedometer when the rear gears were changed. It appears to be spliced into the ECM wiring as well.

Any input is appreciated!

http://i337.photobucket.com/albums/n...psqnkgozhg.jpg

Re: Trivia Question........anyone know what this Vette Doctors Black Box is?
 

I guess if you could ID the exact pins on the ecm it is spliced in series with, you could probably figure out what it is doing. A speedo pulse box sounds likely if you have a different gear ratio.

Re: Trivia Question........anyone know what this Vette Doctors Black Box is?
 

I've got one of those boxes too, so I would be interested to hear what you learn about it. Car had a lot of work done by VD and it does have 4.10s.

Re: Trivia Question........anyone know what this Vette Doctors Black Box is?
 

Thanks guys, I'll start tracing things down if they don't have any info. I just find it hard to believe that something this complex is to correct the speedo. I had one in my 1993 Firehawk from around 2000 and iit was so much simpler.

Re: Trivia Question........anyone know what this Vette Doctors Black Box is?
 

The reason I thought it might be related to the gear swap,is that 4.27's were installed. In 1998,the ratio choices were 3.92,4.09,and 4.27. The new Super 44 ring & pinions weren't available,yet.

Re: Trivia Question........anyone know what this Vette Doctors Black Box is?
 

I believe you are probably right Clint since you know these cars better than most. It will be interesting to hear from Vette Doctors next week.

Re: Trivia Question........anyone know what this Vette Doctors Black Box is?
 

Talked with Vette Doctors today.........drum roll please :)

It's for adjusting the speedo after a gear change.....I was shocked!

Clint was right and the best thing about it is they remembered the car.

Re: Trivia Question........anyone know what this Vette Doctors Black Box is?
 

You have a great car,Tony. Hope you enjoy it as much as you can.

Re: Trivia Question........anyone know what this Vette Doctors Black Box is?
 

I will Clint, although my daily driver has been killing us lately!

Re: Trivia Question........anyone know what this Vette Doctors Black Box is?
 

That is an ERA. Electronic Ratio Adapter.