randeez
Full Access Member
I'm interested to see everyone's opinions on what it would take (mods and $) to turn a stock 2013 Yukon XL Denali 2wd into an 11 second daily driver. The good: 6.2 obviously, and you should also have the 9.5" 14b sf rear end check and see if you have a g80 locker if not definitely plan on getting some sort of traction aide.
Requirements:
Must maintain towing capacity & auto level suspension feature - it wont 60' worth a crap on stock suspension so plan an 1/2 second penalty or so, i would upgrade swapbars front/rear. how much are you honestly planning on towing? a torque converter would help out tremendously my yukon NA would pull 1.7 60's
Must maintain daily driver reliability - maintenance, tune,
No race gas....93 oct or E85 only - install flex fuel sensor, 93oct was ok with about 12psi and about the same amount of timing but doesnt allow much safety net if you get a bad tank or abnormal iats/heat soak, E85 is better than race gas imfo. however need more fuel system, plan on minimum 2-450 walbros or something to that effect
Would like 11's on drag radials, no ET Streets or slicks - 2wd a drag radial will def help, mickey thompson et streets are a nice drag radial? the only DRs to fit 20" wheels are all 29" overall last time i checked. stock tire is 32" or so if you plan on swapping to a DR it will throw off shift points rpm/mph
For reference, best time so far is 15.45@92 with a 2.3 60 ft in FL summer heat/humidity. - pretty much on par with everyone elses. i think mine did 15.2 (2012 6.2/awd shorty yukon) bone stock
sooo i did a pretty full bolt cam/bolt on and got it to run a 12.9@106mph iirc - slip may be in build thread, also in florida heat. ran those mods for over a year with very few problems. upgrading a few things along the way.
prerequisite: plan on deleting the DOD, and swapping cam, a boost cam will still make good power NA if there'll be time between mods, 700hp just an off the shelf cam will be more than enough. there is a difference between turbo and supercharged cams so plan accordingly. the 6l80 can live in that area WITH A GOOD SPOT ON TUNE. learning curve is very steep on tuning the transmission for high hp. i gave up and swapped to a 4l80 after mine died. engine will be fine, dont be stupid with it, same thing with the tune but a little more forgiving.
youre going to need boost to get to the 11s figure out now how you want to get there. PD (positive displacement) superchargers are packaged cleaner, easy to install, designed for the truck so a lot of the oem crap bolts right back on. but to get up to the 700hp+ ran you'll be doing more than a simple bolt on install, LSA/1900tvs will need to be ported/pullied, prob 8rib belt setup atleast, loads of torque etc. prochargers probably have more potential with a larger head unit, less low end than the PDs, still belt slip with stock belts, but plenty of room for them under the hood. with superchargers you can do headers/exhaust in the mean time.
for me i am going with a big single turbo, cam/converter pretty much compensate for any "lag" I could build a couple psi just on the foot brake with the 6.2 with an T6 s480/96. there are a few "kits" on the market i went with trickturbo, uses a cast manifold, install was all pretty simple. i went a little above and beyond to keep comforts probably but none of it was all that hard just takes some time to figure it all out. 700hp can be done with a much smaller/responsive turbo, the ol T4 76/75 will make that no problem and be in boost under 2500rpm on a 6.2.
Requirements:
Must maintain towing capacity & auto level suspension feature - it wont 60' worth a crap on stock suspension so plan an 1/2 second penalty or so, i would upgrade swapbars front/rear. how much are you honestly planning on towing? a torque converter would help out tremendously my yukon NA would pull 1.7 60's
Must maintain daily driver reliability - maintenance, tune,
No race gas....93 oct or E85 only - install flex fuel sensor, 93oct was ok with about 12psi and about the same amount of timing but doesnt allow much safety net if you get a bad tank or abnormal iats/heat soak, E85 is better than race gas imfo. however need more fuel system, plan on minimum 2-450 walbros or something to that effect
Would like 11's on drag radials, no ET Streets or slicks - 2wd a drag radial will def help, mickey thompson et streets are a nice drag radial? the only DRs to fit 20" wheels are all 29" overall last time i checked. stock tire is 32" or so if you plan on swapping to a DR it will throw off shift points rpm/mph
For reference, best time so far is 15.45@92 with a 2.3 60 ft in FL summer heat/humidity. - pretty much on par with everyone elses. i think mine did 15.2 (2012 6.2/awd shorty yukon) bone stock
sooo i did a pretty full bolt cam/bolt on and got it to run a 12.9@106mph iirc - slip may be in build thread, also in florida heat. ran those mods for over a year with very few problems. upgrading a few things along the way.
prerequisite: plan on deleting the DOD, and swapping cam, a boost cam will still make good power NA if there'll be time between mods, 700hp just an off the shelf cam will be more than enough. there is a difference between turbo and supercharged cams so plan accordingly. the 6l80 can live in that area WITH A GOOD SPOT ON TUNE. learning curve is very steep on tuning the transmission for high hp. i gave up and swapped to a 4l80 after mine died. engine will be fine, dont be stupid with it, same thing with the tune but a little more forgiving.
youre going to need boost to get to the 11s figure out now how you want to get there. PD (positive displacement) superchargers are packaged cleaner, easy to install, designed for the truck so a lot of the oem crap bolts right back on. but to get up to the 700hp+ ran you'll be doing more than a simple bolt on install, LSA/1900tvs will need to be ported/pullied, prob 8rib belt setup atleast, loads of torque etc. prochargers probably have more potential with a larger head unit, less low end than the PDs, still belt slip with stock belts, but plenty of room for them under the hood. with superchargers you can do headers/exhaust in the mean time.
for me i am going with a big single turbo, cam/converter pretty much compensate for any "lag" I could build a couple psi just on the foot brake with the 6.2 with an T6 s480/96. there are a few "kits" on the market i went with trickturbo, uses a cast manifold, install was all pretty simple. i went a little above and beyond to keep comforts probably but none of it was all that hard just takes some time to figure it all out. 700hp can be done with a much smaller/responsive turbo, the ol T4 76/75 will make that no problem and be in boost under 2500rpm on a 6.2.
