Injectors???
Diesel Fan
Joined: Dec 2010
Posts: 41
Likes: 2
From: northern va
im running the sdx 7 holes and love them
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my 7x9s are around 100hp and are super clean
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my 7x9s are around 100hp and are super clean
Last edited by line worker; Jan 30, 2011 at 10:24 AM. Reason: Automerged Doublepost
Diesel Enthusiast
Joined: Dec 2010
Posts: 103
Likes: 1
From: Colon, MI
I'm going to 7x11's. I have a buddy with 7x10's (real close to 5x14's) and he says the smoke is way down, and turbo spools faster than his old 5x14's And he picked up 1 hp on the dyno, but lost 25 lb/ft of torque...
Diesel Bomber
Joined: Jan 2009
Posts: 3,504
Likes: 157
From: Pylesville, Maryland
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a 7x.010 is just a tad smaller than a 5x.012
Last edited by 94 12valve; Jan 30, 2011 at 01:53 PM. Reason: Automerged Doublepost
Diesel Bomber
Joined: Jan 2009
Posts: 3,504
Likes: 157
From: Pylesville, Maryland
this would tell me that either he has a fuel supply issue, need to upgrade some things on his p pump, or he doesn't have the airflow for the bigger injectors.
Diesel Enthusiast
Joined: Oct 2009
Posts: 113
Likes: 3
From: LeRoy WI
Did you consider that maybe a cylindrical blind-hole nozzle may be superior to a vco nozzle? He is not the only one that has dyno results to prove this. People look into cross sectional area way to much. Look at a micro blind nozzle with the same hole count as a vco nozzle. They have the exact same cross sectional area but will not make the same power.
Last edited by shortbusdriver; Jan 31, 2011 at 03:23 AM.
Diesel Bomber
Joined: Jan 2009
Posts: 3,504
Likes: 157
From: Pylesville, Maryland
Did you consider that maybe a cylindrical blind-hole nozzle may be superior to a vco nozzle? He is not the only one that has dyno results to prove this. People look into cross sectional area way to much. Look at a micro blind nozzle with the same hole count as a vco nozzle. They have the exact same cross sectional area but will not make the same power.
Your saying a vco 5x.014 VCO will be out flowed by a 7x.010 blind hole dispite the massive difference in cross sectional area? I'll agree with the same size vco against a blind hole statement but not so sure on the other.
Diesel Enthusiast
Joined: Oct 2009
Posts: 113
Likes: 3
From: LeRoy WI
I agree nozzle type is part of it and yes to be honest I did not even think to ask if the nozzle type changed. But who's to say the 5x.014 were not a cylindrical blind-hole nozzle?
Your saying a vco 5x.014 VCO will be out flowed by a 7x.010 blind hole despite the massive difference in cross sectional area? I'll agree with the same size vco against a blind hole statement but not so sure on the other.
Your saying a vco 5x.014 VCO will be out flowed by a 7x.010 blind hole despite the massive difference in cross sectional area? I'll agree with the same size vco against a blind hole statement but not so sure on the other.
I never said a 7x.010" will outflow a 5x.014". The 7x.010" will flow less but it does seem to make decent power, despite being smaller. Some testing has also been done with a set of DDP4's vs SDX 5x.014" vco with lift vs 7x.012" w/out lift. The 7 hole injectors had less haze and had a significant increase in power vs both 5x.014" nozzles. There is still much more testing to be done with various 7 hole nozzles.
