Jump to content

L83 stock rwhp numbers

Janderson 77

By Janderson 77
in Engines & Drivetrain

 Share

Recommended Posts

Janderson 77 Enthusiast

Janderson 77

Posted
Posted

Just curious about stock rwhp and torque for the l83 5.3. I've done some exhaust and bolt on stuff and I never did a baseline before I started. I've seen as much as 296 stock hp at wheels( Whipple site) just wondering if people have seen much lower. The main reason I ask is I already had Cai , Corsa exhaust , and kooks long tubes with a 93 Diablo tune from lew . I had all of that before first ever Dyno which showed 306 hp and like 330 something torque. I was expecting much higher with all of that , but maybe I wasn't starting with as much hp as I thought. After adding e85 sensor and L86 intake/l86 ported throttle body and Dyno tune I'm at 350hp 390tq. 2016 Silverado ccsb

Mike GMC Enthusiast

Mike GMC

Posted
Posted

Not sure what you are worried about, those are pretty good numbers for minor bolt ons.  You're getting factory flywheel type numbers at the rear wheels!  That's probably about a 20% gain.  I say nice work.

mitchely03 Enthusiast

mitchely03

Posted
Posted

Dang. I’m wondering what I’m at honestly. Intake, y pipe, exhaust and tune from 5star.  The truck def doesn’t feel slow. But I was wanting to do the l86 mani and TB. 390torque would be realllly nice 

14 gmcl83 Enthusiast

14 gmcl83

Posted
Posted (edited)
On 6/17/2019 at 5:14 AM, Janderson 77 said:

Just curious about stock rwhp and torque for the l83 5.3. I've done some exhaust and bolt on stuff and I never did a baseline before I started. I've seen as much as 296 stock hp at wheels( Whipple site) just wondering if people have seen much lower. The main reason I ask is I already had Cai , Corsa exhaust , and kooks long tubes with a 93 Diablo tune from lew . I had all of that before first ever Dyno which showed 306 hp and like 330 something torque. I was expecting much higher with all of that , but maybe I wasn't starting with as much hp as I thought. After adding e85 sensor and L86 intake/l86 ported throttle body and Dyno tune I'm at 350hp 390tq. 2016 Silverado ccsb

That’s really good numbers I’d like to see that out of my truck it’s a 14 5.3 I did cold air intake swapped l86intake and tb still need a tune next headers and exhaust . My truck wheel  drive too . Do you have picture of dyno sheet ?

Edited by 14 gmcl83
14 gmcl83 Enthusiast

14 gmcl83

Posted
Posted
25 minutes ago, Janderson 77 said:

First one has three runs, before e85 , after e85, after e85 dynotune.

Solo run is after intake and throttle body swap

IMG_20190622_151653278.jpg

Nice  did you change any of your shift points rpm ? I know my truck pulls harder with l86 intake and tb it wants more rpm.

lapoolboy Senior Enthusiast

lapoolboy

Posted
Posted
3 hours ago, Janderson 77 said:

I wish mine had a Whipple! Whipple site Dyno shows 450 at the wheels on an otherwise stock 5.3. 

Awesome!  She ought to be fun!

mookdoc6 Senior Enthusiast

mookdoc6

Posted
Posted

Mine is bone stock and it was 278tq and 303hp?  If I remember correctly?

  • Thanks 1
  • 9 months later...
JeremyW426 Enthusiast

JeremyW426

Posted
Posted

These are really interesting numbers. I currently have a cold air intake and borla exhaust on my truck. Going to be adding shorty headers and L86 intake manifold and throttle body with an HPTuners tune. My goal is to make RWHP of around 320-330 and RWT upwards of the 360 range. I think I'm being optimistic but we'll see what happens...

  • Like 1
DBowmanEOD Enthusiast

DBowmanEOD

Posted
Posted

If you check out AFEs intake or exhaust for our trucks, they have a factory dyno pull on their site. Then with the bolt on dyno. 

  • 7 months later...
flyingfool Senior Enthusiast

flyingfool

Posted
Posted

how much Torque Management did your tuner take out ?

I'm still hoping one of you hot rodders will bolt on some Doug Thorley Tri-Y's headers...

  • Like 1

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
      Cold start Miss, oil in cylinder

      By newdude · Posted

      Its coolant disguised as oil.   TSB 20-NA-166 -  20-NA-166 1..3   "To inspect for this concern, add coolant dye to the system, run the engine through warm up, pressurize the cooling system after warming the engine to operating temperature (let the engine cool overnight) and inspect the suspect cylinder with a borescope for coolant dye evidence. At times it may be necessary to remove the head for inspection. If the head casting line is the concern, the intake port will be wet with a coolant oil mix"
    • asilverblazer
      Cold start Miss, oil in cylinder

      By asilverblazer · Posted

      Can you sample the pooled liquid, enough to confirm it is oil?   ...That its not fuel or coolant.   Also, make sure combustion gases aren't entering the cooling system.   Simply put, either oil being pushed up past the rings (this really isn't possible), oil leaking past the head gasket, oil leaking past the valve, oil entering through the intake air path. If none of this is likely - it may not be oil.   What could be likely is the fuel injector leaking down. A puddle of gas would still smoke and rough idle. (Same cylinder has the same problem after injector replacement?)   What is the crank time first thing in the morning, when the puddle would be present? Does it seem like the high pressure fuel pump needs an extra second or two to rebuild the pressure that injector 8 may have let bleed off? Check the fuel pressure via a scanner prior to starting the engine.    
    • Donstar
      Navigating senior years.

      By Donstar · Posted

      Good information!  I didn't know about the dementia aspect and asked for a general for my second knee. I'd heard that recovery room time is usually shorter with a general.   The anesthesiologist talked me out of it and I had the spinal.  Inconvenience and/or discomfort is a small price to pay for reduced risk!
    • garagerog
      Navigating senior years.

      By garagerog · Posted

      This is for those over 70 years of age contemplating joint replacement surgery involving general anesthesia. Even some 55 yrs. ago when I took my pharmacology class the dangers of developing dementia in the elderly that had general anesthesia were beginning to be recognized. Over the years there has been some refinement in the cautionary warnings, avoid general anesthesia if possible if you've had close to 10 priors, especially over the age of 70 and/or a family history of dementia. I'm not including the twilight anesthesia induced by propofol often used in cytoscopies or colonscopies. Seriously think about seeing a neurologist and undergo cognitive testing before proceeding if any of those criteria apply to you. Spinal anesthesia may be an option in some cases. I'm in the above camp and although I could use a new right knee, I get fidgety according to a prior orthopedic surgeon when the bone saw spools up or maybe it was the smell of saw blade meeting bone, anyhow I may have one general anesthesia left in me which I will pocket for now and I'm choosing mind over mobility, anyway where did I leave my damn cane!
    • GMCustomerService
      July 2026 upgrade push issues

      By GMCustomerService · Posted

      We understand your frustrations with your auto start/stop, fuel gauge and cruise control concerns since your latest update, @LarT-26. You mentioned getting repairs completed, however, have your concerns been resolved? If not, we would like to learn more so we may explore the best path of assistance moving forward alongside your local dealership. When you have a moment, please visit: https://s.gmc.com/support-request and complete the request form with all pertinent details. This will help us to better understand your concern and ensure that it is routed correctly. We will keep an eye out for your outreach.

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...