[Yachts]

A place that has worked on my engine before in Arkansas which is owned by a former detroit diesel tech. Talked me into programming the engine. This is my first road trip since having it done. This trip fort smith to okc is one I have done numerous times so I can compare accurately... 2 things I have noticed.. definite increase in power and my mpg is up 1.5 to 2 mpg at 67mph.. I'm averaging close to 8.75..

[encantotom]

what did he change on the tune do you know? i looked into it years ago but was concerned about the transmission handling it and the cost. what did he charge for it?

tom

[Yachts]

He is super careful with the tranny.. I'm pulling 550 hp now .. he charges 500$

[89classic]

Do you happen to have his contact info available? Thanks

[Yachts]

Yes he and his brother work together.. met these guys 3 years ago at
The Detroit diesel dealer.. they now are on their own. His name is Jason his brother is jamie.. number is 479-670-2710. They are located right off interstate 40 in Alma Arkansas.

[89classic]

Terrific, I'll give them a call... Thanks. Rick

[Yachts]

On a side note does anyone know what rpms they are running at 67mph. I was at 1600 I'm now about 1420

[encantotom]

unless i am missing something, reprogramming the ddec and or tranny should not change the actual rpms that you are running in 6th gear at a certain speed. it could potentially change the shift points, but not the gearing.

tom

[qcj]

You are correct Tom, changing the ring and pinon gear would only do that.  At least that is what I am thinking.

[Yachts]

Maybe I am incorrect. But that's what I was thinking