Jump to content

Tuned and Converted to Flex Fuel (2015 Silverado 5.3L)

Rawyzf
 Share

Recommended Posts

Rawyzf Senior Enthusiast

Rawyzf

Posted
  • Author
Posted

Do you have the part numbers for the sensor, lines, hoses and clips?

Flex Fuel Sensor - 13577429

Flex Fuel Sensor Clip - 20967866

Flex hose/fuel line (towards engine) - 23171538

Flex hose/fuel line (towards fuel tank) - 20967834

Fuel line (towards engine) - 23171532

Fuel line (towards fuel tank) - 23158923

Fuel line clips - 15168646

 

Note, the Fuel line towards engine is different depending on CC, DC, S, etc. The part number above didn't work for my CC Short Box, so Carl modified it to make it work.

 

Sent from Tapatalk App - Samsung S6

  • Like 2
  • Replies 161
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

Popular Posts

Rawyzf
Rawyzf

I'm not even sure where to start with this post, but here goes.   Last week I ordered the Flex Fuel Sensor and fuel lines/hose/clips for the conversion and then dropped the truck off at the Tuner.

SMiller
SMiller

I could care less if it only gained 5hp, just changing the shift points and torque management make it seem like 100hp gain.

Carl T
Carl T

Here you go, this is a 15 GMC 6.2 L86 A8 w/air intake. I was hoping for a stoker but it was as close as I could get.   Stock- 332/383 Tuned - 353/409 picked up 21whp and 26 ft/lbs over stock Tune

Posted Images

SILVER SLED Senior Enthusiast

SILVER SLED

Posted
Posted

Flex Fuel Sensor - 13577429

Flex Fuel Sensor Clip - 20967866

Flex hose/fuel line (towards engine) - 23171538

Flex hose/fuel line (towards fuel tank) - 20967834

Fuel line (towards engine) - 23171532

Fuel line (towards fuel tank) - 23158923

Fuel line clips - 15168646

Note, the Fuel line towards engine is different depending on CC, DC, S, etc. The part number above didn't work for my CC Short Box, so Carl modified it to make it work.

Sent from Tapatalk App - Samsung S6

 

Thanks

Rawyzf Senior Enthusiast

Rawyzf

Posted
  • Author
Posted

jesus nice numbers. that was with a HP tune? interesting and wow at e85 numbers

HP Tuners, yep.

 

Sent from Tapatalk App - Samsung S6

Eddie 70 Senior Enthusiast

Eddie 70

Posted
Posted

Those are great numbers. I would be curious as to whether you gas mileage changes with your new tune. I am sure since you are using E85 there will be no way to compare.

 

I have HP Tuners but I am not nearly good enough with it to attempt to screw around with it on this truck. I used it on my 70 vette to get it in "The ballpark". There is still work to do on the 70 but it runs and will burn the tires off of it. It could be better at cold engine temps. Its awful in those areas till it warms up.

Rawyzf Senior Enthusiast

Rawyzf

Posted
  • Author
Posted

After a few tanks of e85, I'll run a few tanks of 91 and report back.

 

Sent from Tapatalk App - Samsung S6

scott19677 Senior Enthusiast

scott19677

Posted
Posted

Those are great numbers. I would be curious as to whether you gas mileage changes with your new tune. I am sure since you are using E85 there will be no way to compare.

 

I have HP Tuners but I am not nearly good enough with it to attempt to screw around with it on this truck. I used it on my 70 vette to get it in "The ballpark". There is still work to do on the 70 but it runs and will burn the tires off of it. It could be better at cold engine temps. Its awful in those areas till it warms up.

Yeah it will change. For the worse because you won't be able to keep your foot off the floor or the smile off your face!

  • Like 1
Rawyzf Senior Enthusiast

Rawyzf

Posted
  • Author
Posted

What tuner are you using? Did you get it tuned locally?

 

HP Tuners, local tune. Tuners info/shop are in the first post if interested.

crushNchowda Senior Enthusiast

crushNchowda

Posted
Posted

I have been on the fence about tuning my truck but these numbers are so very tempting. Especially since my last 3 trucks were 6.2 and my last 2 cars were srt challenger and mustang gt. The 5.3 feels a little slow compared to those!

 

Also i did a little research involving drivetrain loss. 15% like myself and most everyone i know thinks is wrong. Obviously it varies by vehicle but most vehicles have 20%+ from what i was reading.

 

What is done to the truck besides tune? Is the airaid just a basic CAI?

 

Parasitic loss isn't as complicated as it seems to be - the more mechanical moving parts you have, and the larger they are & the larger the distances they need to rotate/travel, then the more loss you will have.

Corvette - 2 seater, short wheelbase, transaxle (distance from engine to where the axle mates is quite short), no torque converter manual tranny, = low parasitic loss, maybe 13-17%

 

Large RWD sedan w/ traditional torque converter style automatic tranny like a charger or chevy SS = driveshaft longer distance from engine to rear axle compared to vette, torque converter absorbing some of the engine's power, etc. = 18-22% loss

 

Boosted AWD car like a subie STi - turning all 4 wheels ALL the time w/ center diff but has manual tranny = 18-22% loss, if equipped w/ auto = 22-25% loss

 

Truck w/ long ass heavy ass beefy driveshaft, heavy beefy rear axle, 4WD components, beefier heavier duty clutch components in the tranny/converter = 25% loss

 

My Z06 vette only "lost" 11.1% of its HP on a relatively stingy mustang dyno in stock form - 360whp, rated @ 405....realistically that car probably made closer to something like 415-420hp in stock form which would put that figure more like 14-15% loss.

  • Like 1
Rawyzf Senior Enthusiast

Rawyzf

Posted
  • Author
Posted

 

Parasitic loss isn't as complicated as it seems to be - the more mechanical moving parts you have, and the larger they are & the larger the distances they need to rotate/travel, then the more loss you will have.

Corvette - 2 seater, short wheelbase, transaxle (distance from engine to where the axle mates is quite short), no torque converter manual tranny, = low parasitic loss, maybe 13-17%

 

Large RWD sedan w/ traditional torque converter style automatic tranny like a charger or chevy SS = driveshaft longer distance from engine to rear axle compared to vette, torque converter absorbing some of the engine's power, etc. = 18-22% loss

 

Boosted AWD car like a subie STi - turning all 4 wheels ALL the time w/ center diff but has manual tranny = 18-22% loss, if equipped w/ auto = 22-25% loss

 

Truck w/ long ass heavy ass beefy driveshaft, heavy beefy rear axle, 4WD components, beefier heavier duty clutch components in the tranny/converter = 25% loss

 

My Z06 vette only "lost" 11.1% of its HP on a relatively stingy mustang dyno in stock form - 360whp, rated @ 405....realistically that car probably made closer to something like 415-420hp in stock form which would put that figure more like 14-15% loss.

 

Well said. I know in the G8, I lost about 18% when I calculated it out.

Carl T Enthusiast

Carl T

Posted
Posted

I am the one who dynoed and tuned the truck. The baseline tune was slightly lower than I anticipated. I actually made 4 pulls stock and the graph the OP posted was the highest number. Keep in mind that this truck was dynoed in 3rd gear (1.53:1) to keep wheel speed down which will reduce numbers slightly as well.

  • Like 2
smrr1 Senior Enthusiast

smrr1

Posted
Posted

I am the one who dynoed and tuned the truck. The baseline tune was slightly lower than I anticipated. I actually made 4 pulls stock and the graph the OP posted was the highest number. Keep in mind that this truck was dynoed in 3rd gear (1.53:1) to keep wheel speed down which will reduce numbers slightly as well.

Well you did a good job it looks like! My comment on stock numbers was based on an expectation with no research or education before my comment. Just an old rule of thumb that is absolutely not perfect.

  • Like 2
benjaminforeal Enthusiast

benjaminforeal

Posted
Posted

I am the one who dynoed and tuned the truck. The baseline tune was slightly lower than I anticipated. I actually made 4 pulls stock and the graph the OP posted was the highest number. Keep in mind that this truck was dynoed in 3rd gear (1.53:1) to keep wheel speed down which will reduce numbers slightly as well.

 

Have you tuned a L86 on e85 yet? Really curious to see some results of someone converting their new 6.2 to E85. I would love to convert over someday.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Latest Articles

  • Posts

    • newdude
      2027 GMC Sierra: Official Discussion

      By newdude · Posted

      It was never mandated.  Ever.    Automakers were incentivized to install it by getting CAFE credits to help with their vehicle fleet fuel economy scores.  They were being handed money/CAFE credits to install it.  Which is NOT a mandate.       The current admin removed the incentives that were behind them installing it.       
    • lanaderay
      5 Best Slide Down Gameplay Tips! 

      By lanaderay · Posted

      Are you playing Slide Down endlessly but your score is still low? Are you constantly crashing into obstacles as the game speed increases? Don't worry, this article will share 5 invaluable tips to help you master the race and impress your friends. Golden Rules 1. Look one step further. The mistake of 90% of new players is only staring at their character. The secret of experts is to look towards the top of the screen (where the slide is about to appear). This gives your brain an extra 0.5 - 1 second to process the situation and determine the direction of movement before the obstacle approaches. 2. Use gentle movements; don't swipe too hard. Slide Down is very sensitive. Moving your finger too forcefully or with excessive amplitude will cause your character to be thrown off course or crash into a wall. Practise moving your finger with small, decisive, and precise movements. 3. Don't be greedy for gold in dangerous locations. Gold coins are tempting for buying skins, but life is more important. If you see a gold coin right on the edge of a cliff or next to a spike trap, ignore it. Our goal is a High Score, and your score only increases if you survive. 4. Make the most of Power-ups. During the slide, you'll encounter items like Magnets (attract gold) or Shields (temporary invincibility). Never miss them! Especially the Shield, it's your "get out of jail free card" to help you get through those deadly fast sections. 5. Stay calm when speed peaks. When your score exceeds 500 or 1000, the game speed will be very fast. At this point, don't try to think logically; let your natural reflexes work. Take deep breaths and don't panic. Apply these 5 tips to your next game, and your leaderboard will surely improve dramatically. Good luck climbing the Slide Down leaderboard!
    • lingyuair
      Why I Recommend a Desiccant Air Dryer for Cleaner, Drier Compressed Air

      By lingyuair · Posted

      If you use compressed air regularly, one problem you cannot ignore is moisture. Water in the air line can cause rust, unstable air pressure, poor tool performance, and even damage to sensitive equipment. That is why I highly recommend using a desiccant air dryer. A desiccant air dryer is designed to remove moisture from compressed air by using drying materials such as activated alumina or molecular sieve. Compared with basic water separators, it can achieve much lower dew points, making it especially useful for applications that require dry and stable air. For workshops, painting systems, pneumatic tools, CNC machines, laser cutting equipment, and industrial production lines, a desiccant air dryer can make a big difference. It helps protect equipment, improve air quality, reduce maintenance costs, and extend the service life of the whole compressed air system. Another advantage is reliability. Many desiccant air dryers are built for continuous operation and can maintain stable drying performance even in demanding environments. For users who care about long-term efficiency and equipment protection, this is a smart investment. When choosing a desiccant air dryer, I suggest paying attention to air flow capacity, working pressure, dew point performance, regeneration method, and maintenance requirements. A good model should match your compressor system and actual air consumption. Overall, if moisture is causing problems in your compressed air system, a desiccant air dryer is definitely worth considering. It is practical, efficient, and highly useful for anyone who needs clean, dry, and reliable compressed air.
    • Jsdirt
      2027 GMC Sierra: Official Discussion

      By Jsdirt · Posted

      My brand new 2007 Silverado's wax frame was rust from end to end partway through it's SECOND winter here in MA. That stuff is completely useless.    
    • Jsdirt
      2027 GMC Sierra: Official Discussion

      By Jsdirt · Posted

      I went another direction after losing a trailer tire, thanks to not being able to access air at ANY of the 5 gas stations and garages I stopped at prior, with a Toyota Tacoma onboard, 50 miles from the Canadian border. They were either out of order, access was blocked, or the hose a few feet too short and I couldn't get any closer without risking damage to someone's property.   https://postimg.cc/gallery/X5QJ55w

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...