March B/S Thread
Post Fiend
Joined: Nov 2006
Posts: 6,648
Likes: 1
From: CT
Aaron & Brian what is Big Boy?????
Hi Steve
Posting Guru
Joined: Feb 2010
Posts: 1,504
Likes: 0
From: Maine
Yeah! I was wondering the same thing.
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Good afternoon everyone.
Diesel Van Enthusiast
Joined: Jul 2008
Posts: 5,147
Likes: 1
From: ~ Qatar ~
My van passed emissions today.
Now that the revised tune is back in with the update for the 5.13 differential and 35.4" tires, my dash is showing no change from the original 4.10 differential with 30.5" tires.
I'm putting out 2000 RPM at 60 MPH.
Hmmm, was my math was wrong and I lucked out in picking this combination?
I guess I need to go find a dyno down here and get a speedometer check.
I know Jannetty Racing up in Waterbury has one.
Now that the revised tune is back in with the update for the 5.13 differential and 35.4" tires, my dash is showing no change from the original 4.10 differential with 30.5" tires.
I'm putting out 2000 RPM at 60 MPH.
Hmmm, was my math was wrong and I lucked out in picking this combination?
I guess I need to go find a dyno down here and get a speedometer check.
I know Jannetty Racing up in Waterbury has one.
@ 
