finally got my truck tuned and dyno'd!

specs:
2003 silverado RCSB 5.3l lm7
4l60e 4.11 trutrac
Edge Pro 3600 tc
advanced induction 226cc 799 heads 60cc
btr 660 springs w/Ti retainers
.041 felpro head gaskets
~9.87:1
91 octane
advanced induction 224/228 610/605 114+2
38lb injectors
255lph fuel pump
e-fans
ati superdamper
speed engineering 1 3/4' longtubes 3"ory original 40 flowmaster
k&n filter and tube
20" ltz rims 275/55/20 hankook ventus st
all else stock
Nic D tuned

ran 2nd gear dyno and hit
333rwhp/311rwtq
nic said with the 2nd gear pull to add roughly 25hp to that so
~358/336 possible in 3rd

1/28/2016 5:43pm temp: 68* humidity: 7%




video of the pull

_zblee

 

What size motor

Also cant just add 25 rwhp, doesnt work that way

 

Whoops guess displacement helps

Stock bottom 5.3l lm7

_zblee

 

Is there a formula that gets close? Or? I am sure converter efficiency has to be calculated to get in the ball park.

I always wondered what my old truck would have done locked and in 3rd vs the 2nd gear pulls. Most people said add 30-35, but I was - and still am skeptical.

 

I have no idea . I just went with what the tuner said . He tunes a lot of the same vehicles with 4l60e's on the same dyno and said he typically sees about 25hp less in 2nd than 3rd. Again it's just a guess so take it with a grain of salt.

Called the local track and the next time the public can come use the tRack is not until March :/



_Zblee