2017 suburban 5.3 Whipple build reliability

[Louie.c]

Recently just bought a Whipple for my suburban and I am looking for info as far as reliability is concerned. How will stock transmission hold up with the added power and weight of the vehicle? Any recommendations for upgrades after the install? For now I am looking to just install the kit and not go with any other power upgrades

 

 

Sent from my Pixel 3a using Tapatalk

 

 

[CamGTP]

The suburban is not that much heavier than a crew cab standard bed Silverado/Sierra, so there isn't much added weight compared to those.

 

The stress on the parts is going to be mostly the same. The SUV frame/chassis setup is going to be far better than the leaf springs on the trucks though, so it should put the power down to the ground better.

 

Both the 6 speed and 8 speed transmission can handle the power pretty well. The transmission tune to me is the key to making it act right. I have no idea if the whipple kits come with engine and transmission changes in the calibration or if it's just engine changes to run the supercharger.

[gat0r]

i have a BBP tune (BlackBear), so id recommend them... as they can handle the trans stuff too, as Cam mentioned

 

 

if you arent planning on doing headers or smaller pulleys for whipple, you shouldnt have any issues, once you get a proper tune.

 

BBP or someone who can use HP tuners are the better 2 tune options

 

 

i might also recommend sticking to the GM  severe maintenance schedule to stay ahead of things.

 

 

i have a magnuson supercharger & the BBP tune was so much better than what it came with.

i also have smaller pulley & catback exhaust.  eventually i'll get LT headers & do some other upgrades.

[Louie.c]

i have a BBP tune (BlackBear), so id recommend them... as they can handle the trans stuff too, as Cam mentioned
 
 
if you arent planning on doing headers or smaller pulleys for whipple, you shouldnt have any issues, once you get a proper tune.
 
BBP or someone who can use HP tuners are the better 2 tune options
 
 
i might also recommend sticking to the GM  severe maintenance schedule to stay ahead of things.
 
 
i have a magnuson supercharger & the BBP tune was so much better than what it came with.
i also have smaller pulley & catback exhaust.  eventually i'll get LT headers & do some other upgrades.

Thanks for the info, definitely going to get the transmission tune, from what I read it makes a huge difference. Did you stick to oem oil 0w-20 or did you go with something different after the supercharger?

Sent from my Pixel 3a using Tapatalk

[gat0r]

yeah i stuck w/ the 0w20 syntethic oil.

i change it every 5k miles, im over 60k now

[Louie.c]

yeah i stuck w/ the 0w20 syntethic oil.
i change it every 5k miles, im over 60k now

Thanks for the info, Whipple is on the way so some install updates coming soon

Sent from my Pixel 3a using Tapatalk

[Louie.c]

Some pictures from the install

Sent from my Pixel 3a using Tapatalk

[Terry Hurlburt]

I have a Magnuson super charger on my 2014 Yukon Denali, 6.2 liter engine. It has been professionally tuned on a dyno. We added bigger injectors and did a separate tune for E85 fuel mix. The dyno has the engine at ~650 HP and 680 ft-lbs of torque. It drives great. This has the six speed transmission and all I have read is this transmission is good to the 700 ft-lbs of torque at the flywheel. I have been driving the vehicle for 4 years now, just doing regular maintenance on the Severe Duty schedule to be careful. So far all is still doing great.
  The vehicle has headers,catback  exhaust system and has been lowered 2”/4”.

  The supercharger really wakes up the performance of an already great vehicle.