Duramax Diesels Forum Truck of the Week
  #31  
Old 02-26-2015, 11:01 AM
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Originally Posted by Ne-max View Post
This is why comparing dyno numbers is gay. It will be awesome seeing the gains per mod made on the same dyno to see a accurate result.
Yeah that's pretty much all its good for. The differences you can get between dynos are huge.

I'm definitely interested in seeing this step by step.

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  #32  
Old 02-26-2015, 11:16 AM
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Do they *sniff* today's diesels?
They do here in Boise. We are 1 of 2 counties in Idaho that sniffs diesels unfortunately
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  #33  
Old 02-26-2015, 11:21 AM
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They do here in Boise. We are 1 of 2 counties in Idaho that sniffs diesels unfortunately

I just heard that the other day from my friend that works at Meridian ford. surprised me.
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  #34  
Old 02-26-2015, 11:29 AM
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black LBZ passed with a .4 out of 40 with all its mods. so i think they are pretty forgiving on them tho lol

and robs truck with full emissions and how clean it runs, he doesnt have any issues
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Last edited by sickdiesel; 02-26-2015 at 11:59 AM.
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  #35  
Old 02-26-2015, 12:10 PM
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Originally Posted by sickdiesel View Post
black LBZ passed with a .4 out of 40 with all its mods. so i think they are pretty forgiving on them tho lol

and robs truck with full emissions and how clean it runs, he doesnt have any issues
Dustin did they give you a printout?
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  #36  
Old 02-26-2015, 12:34 PM
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Originally Posted by 56taskforce View Post
Dustin did they give you a printout?
yes
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OverBuilt :07 Chevy lbz 4x4 Caged and built to the hilt 10.42@134 SOLD
Special thanks to: Mike L, GTrippin, IdahoRob, SDP, ISSPRO, Yukon, Dmaxstore, Airdog, HSP, Hamilton Cams, and Flexalite

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  #37  
Old 02-26-2015, 01:35 PM
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Originally Posted by Ne-max View Post
This is why comparing dyno numbers is gay. It will be awesome seeing the gains per mod made on the same dyno to see a accurate result.
Agreed,. My question was not exactly about the numbers, but as to whether the computer was cutting hp, which would be another issue to manage with the addition of tuning, turbo etc. to a stock emissions vehicle.
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  #38  
Old 02-26-2015, 02:15 PM
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Agreed,. My question was not exactly about the numbers, but as to whether the computer was cutting hp, which would be another issue to manage with the addition of tuning, turbo etc. to a stock emissions vehicle.
I took the stock tune and just removed the speed limiter. By the looks of the dyno graph and the data logs the ecm isn't limiting anymore than the modded tunes.

Soot grams went from 11 to 22 after a day of dyno and road testing so that shouldn't have been a factor as the stock runs were when soot was in the 12-14 range. Rear tire diameter did change though...
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  #39  
Old 02-26-2015, 02:18 PM
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Quote:
Originally Posted by sickdiesel View Post
black LBZ passed with a .4 out of 40 with all its mods. so i think they are pretty forgiving on them tho lol

and robs truck with full emissions and how clean it runs, he doesnt have any issues
same thing they have done here in phx for years. over 40 opacity and you dont pass. ive blown quite a bit of smoke on the sniffer before and only hit a 20. usually im around 1-5 lol.
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  #40  
Old 02-26-2015, 02:35 PM
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Quote:
Originally Posted by IdahoRob View Post
I took the stock tune and just removed the speed limiter. By the looks of the dyno graph and the data logs the ecm isn't limiting anymore than the modded tunes.

Soot grams went from 11 to 22 after a day of dyno and road testing so that shouldn't have been a factor as the stock runs were when soot was in the 12-14 range. Rear tire diameter did change though...

Maybe I missed it but what did you see for gains from the air filter?
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  #41  
Old 02-26-2015, 08:26 PM
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Let's keep this thread going as I am learning and enjoying this. I may have to duplicate Rob's mods. this is good stuff here.
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  #42  
Old 02-27-2015, 07:57 AM
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Originally Posted by Mike L. View Post
Let's keep this thread going as I am learning and enjoying this. I may have to duplicate Rob's mods. this is good stuff here.
Exactly Mike! You and I talked about having a great running truck and not removing emissions stuff. Hope this is where it goes. Also wanting to be able to tow with whatever set up comes out of this. Gotta say its a beast stock when the trailer is behind it.
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  #43  
Old 02-27-2015, 09:46 AM
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OK, don't shoot the messenger. This test was done with same stock tune and same performance tune as the first test, within hours of the first test, same dyno, same load and correction factor.

We didn't believe the results so we made multiple runs and all were within 5hp.

My stock intake had 17k miles on it and we didn't clean the MAF or anything else but installed the new intake with a dry filter and a filter sock.

I'm going to review the MAF readings to see if the improved air flow allowed the ecm to add fuel. Either way 40hp on stock tune and 20hp on performance tune is really unbelievable. If someone else did the test and I read it on the internet, I'd say B.S. so take it for what it is. Even if it was half that on a stock truck, very cheap HP.
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File Type: pdf lml intake test.pdf (627.5 KB, 354 views)
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  #44  
Old 02-27-2015, 09:49 AM
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That's awesome!
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  #45  
Old 02-27-2015, 09:53 AM
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Wow!
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Quote:
Originally Posted by JoshH View Post
Mike L is my role model. I want to be like him when I grow up.
James

02 LB7, LLY, LBZ, LMM, LML, L5P 2500HD CC/LB dmax/alli "The Limo"

BIG THANKS TO: Mike L, Steve, Trent, Guy, Dan, Ruben, Josh H, Scott, Brian and everyone else who has put a hand in to help me.

best time to date: 12.39

motor died/bent rods = 3/11/11
back from the dead 7:04pm 4/9/2012

Limo is back in the garage, now driving a built chevy tracker
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