SixOhh
EPA unfriendly
- Joined
- Aug 4, 2008
- Messages
- 1,108
To make a short story long, i had a friends 06 that had flux 6's in it with a stock he351 (for the time being)
a few years later we are doing a complete build now....
6.7 fuel, todd's wild pump as a single, s369sxe
all of zacks head work pistons and hard parts... 188/220, big valves, bench work, rods, side intake, balanced bottom end, etc etc
as far as fuel i had him at 1400 u.s. wot and near stock timing... he is going from 125% to 200% overs with a lot more fuel and a lot more air...
All things considered, i plan on firing it off on the oem file for break in and then going from there.
My main concern is how timing is affected with so much fuel and air moving way faster off idle and how that affects timing with a larger nozzle. Of course we are going for less duration, but this is normally way more motor that what i normally tune. To be frank, most of my tuning work are DDs with stock internals with small fuel upgrades. Ive never tuned a motor with this much head work and higher compression pistons.... how will the higher compression affect timing?
Am i just being a worry wart here? run it on a stock file with all injection events from the get go or give it a smoothed out base file with no post injection and stock timing?
There is a lot of money in this build and i just want to be safe.
Ultimately, i would sub this work out to Les or Dom, but i am here to learn.
i will not have dyno access for a while after the build and this is why i am asking,
thanks for your input gents,
-M
a few years later we are doing a complete build now....
6.7 fuel, todd's wild pump as a single, s369sxe
all of zacks head work pistons and hard parts... 188/220, big valves, bench work, rods, side intake, balanced bottom end, etc etc
as far as fuel i had him at 1400 u.s. wot and near stock timing... he is going from 125% to 200% overs with a lot more fuel and a lot more air...
All things considered, i plan on firing it off on the oem file for break in and then going from there.
My main concern is how timing is affected with so much fuel and air moving way faster off idle and how that affects timing with a larger nozzle. Of course we are going for less duration, but this is normally way more motor that what i normally tune. To be frank, most of my tuning work are DDs with stock internals with small fuel upgrades. Ive never tuned a motor with this much head work and higher compression pistons.... how will the higher compression affect timing?
Am i just being a worry wart here? run it on a stock file with all injection events from the get go or give it a smoothed out base file with no post injection and stock timing?
There is a lot of money in this build and i just want to be safe.
Ultimately, i would sub this work out to Les or Dom, but i am here to learn.
i will not have dyno access for a while after the build and this is why i am asking,
thanks for your input gents,
-M
