MPI twins, Rob Coddens economy tune HP numbers??

[Swisstyphoon]

You can test fairly easy, but will need a little help.

Find someone with a similar weight/model truck, and get an acceleration number, like 30-80mph. Then back off your throttle table to adjust your truck accordingly.

With that 20% law, just be glad you don't have a 1998-2002 Camaro or Firebird. They put out over 20% more than rated horsepower off the showroom floor.

Thanks for the info, good idea, but its hard to find another Duramax over here.
There are only a few in the whole Country.

 

[Swisstyphoon]

Just got off the phone with the place that does the testing.
They want $500 just for the dyno run!!
They cant even do it in house, my truck wont fit on their dyno, they have to outsource it....

 

[HogAssWild]

Just another way to get $$

 

[McRat]

Photoshop might be your best friend in such a case.

 

[Mika]

Just say it is stock truck in inspection. If there are only few duramaxes in country, inspection people wont know how many turbos there should be.