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Blackbear In Person Data Logging Tune

yukon25008.1

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yukon25008.1 Senior Enthusiast

yukon25008.1

Posted
Posted

I went to buffalo NY, for the in person tune and thank god i did, justin sqeezed me in as last tune of the day, we met at 8:40 and finished at around 10. The best part was there was no rush, and we did more repair/troubleshooting than i imagined, I got to see and figure out codes that were never known about, and fixed important timing&fuel issues that made the 8.1 run like it was supposed to, you can instantly tell after the tune that the engine is running at peak effeiciency.. i gained an honest 3-4 MPG, besides the tranny/shifts feeling SO much better, on my application its not torque managment, but a 60 sec delay for full throttle, that we eliminated, throttle response is great.. along with the engine sounding better...sounds like a big block should. Also took care of my tire size and got the speedo accurate, and tuned for the new 180 stat in installed,

 

So Big thanks to justin and his knowlegde and patience. look foward to dealing with you again in the future.

SWDoodle Enthusiast

SWDoodle

Posted
Posted
I went to buffalo NY, for the in person tune and thank god i did, justin sqeezed me in as last tune of the day, we met at 8:40 and finished at around 10. The best part was there was no rush, and we did more repair/troubleshooting than i imagined, I got to see and figure out codes that were never known about, and fixed important timing&fuel issues that made the 8.1 run like it was supposed to, you can instantly tell after the tune that the engine is running at peak effeiciency.. i gained an honest 3-4 MPG, besides the tranny/shifts feeling SO much better, on my application its not torque managment, but a 60 sec delay for full throttle, that we eliminated, throttle response is great.. along with the engine sounding better...sounds like a big block should. Also took care of my tire size and got the speedo accurate, and tuned for the new 180 stat in installed,

 

So Big thanks to justin and his knowlegde and patience. look foward to dealing with you again in the future.

 

 

I had the same experience with Justin as well. He definately knows what he's doing and is very patient. I didn't see the mileage gains I thought I might get, but at least it has more torque and is just more driveable. I'm acutally thinking of tuning for 91+ if he ever makes it out my way again to see if that would give me a little more grunt as well. We just went with the 87 tune with some TM removed. No doubt it is the best mod you can do for the money hands down.

06yz125 Enthusiast

06yz125

Posted
Posted

I don't understand why you guys need a tune. We haul 13,000#

through the WV mountains with the 2010 chev and do OK.

 

Sure..we could do the gofaster thing but why? This combo

does fine stock and why put more stress on the drivetrain than

necessary?

04JJHD Enthusiast

04JJHD

Posted
Posted

thats like comparing a geo metro to a 2010 camaro. It's just that much better to go faster. I mean everyone has there prefrence but i would still love to go faster but thats the young in me

yukon25008.1 Senior Enthusiast

yukon25008.1

Posted
  • Author
Posted

i needed a tune because my engine had some minor issues to be resolved, and its not all about the "go fast" thing

justin got me to gain 3-4 MPG...

 

If your not interested fine, just read a different post!

eddinger Enthusiast

eddinger

Posted
Posted

Hey Ron, thats awsome. I talked to Brian at Harris Performance(TBIchips.com) said he could really help. Can't wait to meet him and get my "Wanda" running right.

jro909 Senior Enthusiast

jro909

Posted
Posted
I don't understand why you guys need a tune. We haul 13,000#

through the WV mountains with the 2010 chev and do OK.

 

Sure..we could do the gofaster thing but why? This combo

does fine stock and why put more stress on the drivetrain than

necessary?

 

 

its personal preference, i think a tune is a great investment if your looking to tap into more of the engine's power, but on the other hand your risking more stress on the drivetrain..

Kodiak450 Senior Enthusiast

Kodiak450

Posted
Posted

I juts find that really odd you gaining 3-4 mpg. Why wouldn't GM have tuned the 8.1 that way in the first place then. I'm sure it's current mileage turned many people away when it was available with a 3/4 ton truck. Unless the tune effects the emmissions now, which in this case would be a red flag at inspections.

 

Speaking of inspections, I recently learned that NJ as of Aug 1rst will now NOT fail you for the following: window tint on front and passenger side windows, bulb out, any broken tail lights or even windsheild. The state is making cutbacks and will only be testing emmissions only, no testing of brakes either!

ColoradoSkiCountry Senior Enthusiast

ColoradoSkiCountry

Posted
Posted

Over time, tune programmers find ways to improve the "old" software to make things run better. That's the great thing about new technology, finding ways to fix what was "perfect" in years past. Also a major reason people get tunes on the GM trucks is to get rid of the stupid Torque Management that limits truck's performance. Most folks complain of slow throttle response due to the torque management. A tune fixes this to make the truck act more like a V-8 instead of a V-6.

yukon25008.1 Senior Enthusiast

yukon25008.1

Posted
  • Author
Posted

the mpg improvment isnt a guess.. on the way to buffalo cruise control at 72 mph was bouncing between 9-11 mpg.

on the way home 72-78 mph i was 13-15 mpg :lol:

txab Senior Enthusiast

txab

Posted
Posted
the mpg improvment isnt a guess.. on the way to buffalo cruise control at 72 mph was bouncing between 9-11 mpg.

on the way home 72-78 mph i was 13-15 mpg :lol:

But you did say in the op, that you had your odo and speedo adjusted for your tire size, correct? That in itself makes a big difference in recorded MPG

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