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Old 12-20-2018, 10:40 PM   #1
SixOhh
 
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timing relevent to larger nozzles

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
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07' Silver 2500 5.9 4x4 LWB
Goerend 48re-csp5/EFI- T&C Mild Cp3-F1 Apex 7.5 -S369sxe Amsoil
Coolant Bypass -Airdog-D&J- Hamilton 188/220 -AFE-ARP Opti-Lube
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Old 12-20-2018, 11:10 PM   #2
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I feel safe at 27* lol.... 29* and I'm frisky.... anything more for me just gets expensive in many ways.
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Old 12-20-2018, 11:32 PM   #3
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sorry the cam is a 178/208 if that matters.
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07' Silver 2500 5.9 4x4 LWB
Goerend 48re-csp5/EFI- T&C Mild Cp3-F1 Apex 7.5 -S369sxe Amsoil
Coolant Bypass -Airdog-D&J- Hamilton 188/220 -AFE-ARP Opti-Lube
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Old 12-21-2018, 11:00 PM   #4
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What are you planning on turning for rpm?? Hopefully 4500ish to make it fun?
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Old 12-22-2018, 01:57 PM   #5
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I wouldn't fire it on a stock file. But that's just me
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Old 12-31-2018, 07:30 PM   #6
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Quote:
Originally Posted by blackmega3500 View Post
I feel safe at 27* lol.... 29* and I'm frisky.... anything more for me just gets expensive in many ways.
i dont bring any trucks past 28* without time on the rollers.

maybe i should have been clearer, i am not concerned about WOT timing but the timing on the way there so to speak. how is timing affected in that Daily driving range 20-50mm3 ish. with such a large injector?
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Goerend 48re-csp5/EFI- T&C Mild Cp3-F1 Apex 7.5 -S369sxe Amsoil
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Old 12-31-2018, 07:31 PM   #7
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Quote:
Originally Posted by Dom_c13b View Post
What are you planning on turning for rpm?? Hopefully 4500ish to make it fun?
it should be built for whatever! he just picked up a nice girdle and it has been balanced! at least 4k for now or let her eat dominic!
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Goerend 48re-csp5/EFI- T&C Mild Cp3-F1 Apex 7.5 -S369sxe Amsoil
Coolant Bypass -Airdog-D&J- Hamilton 188/220 -AFE-ARP Opti-Lube
H-Town Off-Road
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Old 12-31-2018, 07:32 PM   #8
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I wouldn't fire it on a stock file. But that's just me
please explain why? because of stock timing or stock fuel delivery?
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Coolant Bypass -Airdog-D&J- Hamilton 188/220 -AFE-ARP Opti-Lube
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Old 12-31-2018, 11:04 PM   #9
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Quote:
Originally Posted by SixOhh View Post
please explain why? because of stock timing or stock fuel delivery?
Idle pressure needs bumped, stock main timing would probably be ok, but main pulse / quantity and pilot qty should be addressed
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Old 01-02-2019, 07:35 PM   #10
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makes sense. les already had me bump the rail up to like 82-8500 psi last time to clean these same injectors up at idle.
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Goerend 48re-csp5/EFI- T&C Mild Cp3-F1 Apex 7.5 -S369sxe Amsoil
Coolant Bypass -Airdog-D&J- Hamilton 188/220 -AFE-ARP Opti-Lube
H-Town Off-Road
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