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Turbo 6.2 almost done!!

DenaliX14

By DenaliX14
in Engines & Drivetrain

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truckguy82 Senior Enthusiast

truckguy82

Posted
Posted
9 minutes ago, 3tspapat said:

Hey so let's hear more about the build and less about how OTHER people's money should be spent. I don't have money, exciting build or history of owning awesome cars, but I bet I can piss further than anyone here. 

I doubt that, I can piss 14’7” 

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DenaliX14 Enthusiast

DenaliX14

Posted
  • Author
Posted

Wow, Lots of chatter the past few days. Sorry I've been traveling heavily for work. Sorry for the long response. 

 

I will break the timeline down a bit.  Short answer...no the truck is not done. To be clear it was finished and ready to go until I asked for more power....oops.

 

  • I will lay in the prefix here. I let the owner know I had plenty of time for him to spend on this build. I'm in a situation where I have multiple vehicles. At the time (May 2019) The shop was slammed with other vehicles and Mine was just a heads/cam job at the time. The ETA for completion was end of April. During that time I started to get the bug for more mods and we spoke about a LT4 blower laying around in storage which I purchased. Fast forward to April 20th..ish... The blower bolts right up to the new Texas Speed headers however the Snout sticks out 1" further than my drive assembly. This wasn't measured since my truck was still in the waiting line. I had two directions to go, spend over $3.5K for the correct assembly or $2-3K to exchange my blower to the correct type with a company based out of TX. I took Option Z go turbo. 
  • After putting the $2,900 I spent on the Blower and Nick Williams TB to the Massive turbo We had to wait for delivery of parts and the owners backlog of installs continued to grow. I didn't press him since we had parts on order. During that time period I did more research on "weak points" on the LT1 and saw Pistons we're a common issue over 550 whp so I purchased Diamond Pistols. 10:1 compression. When those arrived I delivered to the owner who ended up taking my block home to work over the weekends to keep something moving. Again I have multiple vehicles and wasn't pressing him. 
  • While the Block was out and being worked on I started to get more and more into weak points and upgrades grabbing a new Fuel system, High and Low side pumps as well as injectors, Meth kit, Total cooling systems etc. I just kept going and going pushing more and more of the build out. 
  • Fast forward to July or Whenever it was I read a tread about the drive shafts being a weak point and asked the shop not to dyne until I got a replacement. Which I did and posted about. They installed that and started firing up the engine. 
  • Dynoing went very well. The truck started putting out massive power with very low boost and no meth. Things were almost wrapped up when the big pull happened and now that the block has been removed it ended up being several bearings and two rods destroying the block. 
  • This obviously delayed the over all build and I ended up spending a bit on a built 7.0 cid from Texas Speed and Performance. 
  • Once the block arrived The shop came and picked it up and it was another countdown until my truck could have the busted engine removed, dissembled and start moving parts over to the beast block.
  • The engine is back in and fully reassembled. We're waiting on a new engine harness since the original was not in the best shape to begin with, probably the nasty chipmunks that dwell around my house. 
  • Once the harness comes in and is put on it's break in, bast tune, put a few hundred miles on it then the final Dyno. 
  • Once I get the final dyno I need to take the truck to a performance shop in CT that does Transmissions. I ended up buying the PATC Level 4 Phoenix rebuild kit with billet planet and 4 clutch torque converter. 
  • Overall goal is to be at 950-1000WHP just because. 

The shop hasn't done anything I haven't been aware of or planned on. The expectation was, take your time and do it right. The stock block was my fault. I should have upgraded the Rods and bearings with something like https://gwatneyperformance.com/product/gpi-lt1-drop-in-piston-rod-package/#configuration but hindsight is 20/20 as they say. And my goal at the time was 750-800 WHP on those stock components. Noooobueno. The gaskets we're an oversight on my behalf since I went from a 6.2L to 7.0L. It just never occurred to me I'd need new ones. so DUH moment on my part. All in all they've had my truck from mid March to Nov (9 months). All things considered on a build like this, I'm not worried. 

 

And again. I have two other new vehicles. This is my weekend toy ever since I got rid of my C63 AMG. Not goin to spell check or fix grammatical errors. Just got home from a 6 hour flight. Enjoy :). 

 

 

Final thought. I still think if anyone wants a totally different driving experience just throw on a Whipple, Procharger or Eddlebrock system. puts you over 500whp and you don't need to spend $30+k, Unless you can ......

 

Rock1500 Senior Enthusiast

Rock1500

Posted
Posted
Wow, Lots of chatter the past few days. Sorry I've been traveling heavily for work. Sorry for the long response. 
 
I will break the timeline down a bit.  Short answer...no the truck is not done. To be clear it was finished and ready to go until I asked for more power....oops.
 
  • I will lay in the prefix here. I let the owner know I had plenty of time for him to spend on this build. I'm in a situation where I have multiple vehicles. At the time (May 2019) The shop was slammed with other vehicles and Mine was just a heads/cam job at the time. The ETA for completion was end of April. During that time I started to get the bug for more mods and we spoke about a LT4 blower laying around in storage which I purchased. Fast forward to April 20th..ish... The blower bolts right up to the new Texas Speed headers however the Snout sticks out 1" further than my drive assembly. This wasn't measured since my truck was still in the waiting line. I had two directions to go, spend over $3.5K for the correct assembly or $2-3K to exchange my blower to the correct type with a company based out of TX. I took Option Z go turbo. 
  • After putting the $2,900 I spent on the Blower and Nick Williams TB to the Massive turbo We had to wait for delivery of parts and the owners backlog of installs continued to grow. I didn't press him since we had parts on order. During that time period I did more research on "weak points" on the LT1 and saw Pistons we're a common issue over 550 whp so I purchased Diamond Pistols. 10:1 compression. When those arrived I delivered to the owner who ended up taking my block home to work over the weekends to keep something moving. Again I have multiple vehicles and wasn't pressing him. 
  • While the Block was out and being worked on I started to get more and more into weak points and upgrades grabbing a new Fuel system, High and Low side pumps as well as injectors, Meth kit, Total cooling systems etc. I just kept going and going pushing more and more of the build out. 
  • Fast forward to July or Whenever it was I read a tread about the drive shafts being a weak point and asked the shop not to dyne until I got a replacement. Which I did and posted about. They installed that and started firing up the engine. 
  • Dynoing went very well. The truck started putting out massive power with very low boost and no meth. Things were almost wrapped up when the big pull happened and now that the block has been removed it ended up being several bearings and two rods destroying the block. 
  • This obviously delayed the over all build and I ended up spending a bit on a built 7.0 cid from Texas Speed and Performance. 
  • Once the block arrived The shop came and picked it up and it was another countdown until my truck could have the busted engine removed, dissembled and start moving parts over to the beast block.
  • The engine is back in and fully reassembled. We're waiting on a new engine harness since the original was not in the best shape to begin with, probably the nasty chipmunks that dwell around my house. 
  • Once the harness comes in and is put on it's break in, bast tune, put a few hundred miles on it then the final Dyno. 
  • Once I get the final dyno I need to take the truck to a performance shop in CT that does Transmissions. I ended up buying the PATC Level 4 Phoenix rebuild kit with billet planet and 4 clutch torque converter. 
  • Overall goal is to be at 950-1000WHP just because. 
The shop hasn't done anything I haven't been aware of or planned on. The expectation was, take your time and do it right. The stock block was my fault. I should have upgraded the Rods and bearings with something like https://gwatneyperformance.com/product/gpi-lt1-drop-in-piston-rod-package/#configuration but hindsight is 20/20 as they say. And my goal at the time was 750-800 WHP on those stock components. Noooobueno. The gaskets we're an oversight on my behalf since I went from a 6.2L to 7.0L. It just never occurred to me I'd need new ones. so DUH moment on my part. All in all they've had my truck from mid March to Nov (9 months). All things considered on a build like this, I'm not worried. 
 
And again. I have two other new vehicles. This is my weekend toy ever since I got rid of my C63 AMG. Not goin to spell check or fix grammatical errors. Just got home from a 6 hour flight. Enjoy :). 
 
 
Final thought. I still think if anyone wants a totally different driving experience just throw on a Whipple, Procharger or Eddlebrock system. puts you over 500whp and you don't need to spend $30+k, Unless you can ......
 
It's and awesome and expensive build. I have the 5.3 and was debating if it is worth throwing a blower on it. I wish my truck came with the 6.2l though I still love what I have, it had been reliable.

Sent from my Pixel 2 XL using Tapatalk

NE18 Enthusiast

NE18

Posted
Posted

I know nothing about builds but shouldn’t the shop have known to switch out gaskets and upgrade the rods/bearings?

ShortyMatt Enthusiast

ShortyMatt

Posted
Posted
10 hours ago, NE18 said:

I know nothing about builds but shouldn’t the shop have known to switch out gaskets and upgrade the rods/bearings?

Based on my understanding of this build, that's not the issue.  If I'm correct, DenaliX14 sourced this big ass engine and most of the trimmings himself after the 6.2 blew up.  On the gasket, all that happened was he spaced having to order a new one.

 

Like the man said, this is very much an owner driven build.  It started with a stock engine, about 5 years into its life if my math serves me, and along the way our friend decides he wants to be doing wheelies in the truck on 495, so up up up goes the power.  He was trying for 800 wheel, which means 1000 at the crank.  Nobody KNOWS what's going to happen at that power level.  Anybody can second guess after something went wrong, but the shop wasn't the only one driving the build, and forum information is no substitute for actual performance work experience, which I assure you this shop has in spades.

 

Ask questions by all means, but anybody who would take a shot at this shop's experience, knowledge and professionalism is off base.  I've had nothing but good experiences with them.

 

 

KARNUT Senior Enthusiast

KARNUT

Posted
Posted
It's and awesome and expensive build. I have the 5.3 and was debating if it is worth throwing a blower on it. I wish my truck came with the 6.2l though I still love what I have, it had been reliable.

Sent from my Pixel 2 XL using Tapatalk


In 2014 there was a thread on this site about installing blowers on a 5.3 and 6.2. Lingenfelter I believe stated 50 HP difference between the two with a blower. The reason was the 6.2 was tuned to run on premium stock leaving less tuning with a blower. Make sense since using E-85 on a stock 5.3 gets you within 40 HP in stock comparison.


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ROB_IS_KING Enthusiast

ROB_IS_KING

Posted
Posted
18 hours ago, DenaliX14 said:

 

Final thought. I still think if anyone wants a totally different driving experience just throw on a Whipple, Procharger or Eddlebrock system. puts you over 500whp and you don't need to spend $30+k, Unless you can ......

 

I still haven't had a chance to speak with James at GSD about the details but he quoted me at $6700 for the turbo install.

truckguy82 Senior Enthusiast

truckguy82

Posted
Posted
7 hours ago, ShortyMatt said:

He was trying for 800 wheel, which means 1000 at the crank.  Nobody KNOWS what's going to happen at that power level.  Anybody can second guess after something went wrong, but the shop wasn't the only one driving the build, and forum information is no substitute for actual performance work experience

 

there are tons of vettes and camaros at that power level. The l86 is internally identical to the lt1. So, some people do actually know what’s going to happen at that power level.


Dunno, sounds more like to me the shop is a bunch of nice guys trying their best and the owner is being too nice to them even though their best isn’t good enough.

 

7 hours ago, ShortyMatt said:
ShortyMatt Enthusiast

ShortyMatt

Posted
Posted
7 minutes ago, truckguy82 said:

there are tons of vettes and camaros at that power level. The l86 is internally identical to the lt1. So, some people do actually know what’s going to happen at that power level.


Dunno, sounds more like to me the shop is a bunch of nice guys trying their best and the owner is being too nice to them even though their best isn’t good enough.

 

I'm curious as to your expertise on this matter.  In your opinion, how many years of lurking on truck forums equals one year of professional wrenching? 

ShortyMatt Enthusiast

ShortyMatt

Posted
Posted
On 11/12/2019 at 11:21 AM, truckguy82 said:

 

not to mention I’ve been looking at pretty much every gm truck forum for years now
 

 

Please tell me you're basing it on more than this.

ROB_IS_KING Enthusiast

ROB_IS_KING

Posted
Posted
39 minutes ago, ShortyMatt said:

Do it!!!

I read several pages back that you were considering a similar route (and may have gone it; I forget, I read it a few days ago).  Did you?  What were the results?

ShortyMatt Enthusiast

ShortyMatt

Posted
Posted
13 minutes ago, ROB_IS_KING said:

I read several pages back that you were considering a similar route (and may have gone it; I forget, I read it a few days ago).  Did you?  What were the results?

Easiest is to check out my build page  - It's short, and the turbo build starts the middle of page 1.  Still need to update with my new wheels/tires.

 

I'm thrilled with the results.  I'm have a 5.3 and had some minor bolt-ons and a a remote tune...  dyno-ed at 318whp before the turbo.  450Whp and 490wt after.  It's a monster.  The only downside is turbo lag in comparison to a supercharger, but you can turn the power up higher with a turbo.

 

 

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