6.2L power!

[chuckl1218]

My vehicle list

 

2001 Formula

2006 GTO (totaled by red light runner)

2008 TBSS

2009.5 G8 GXP

2010 Sierra AT + 2008 C6 Vette

2014 Sierra AT

Really interesting how really small the whole community is...Chris (GTPrix) turned on the shift light on my GTO at a meet in Houston...

You guys with 6.2L engines are killing me...I fought the desire this time but sometimes I regret not waiting for the 6.2...here's a few GMs on my list (I've had way too many cars )

1976 Corvette Stingray

1999 Surburban 2500 454ci 4X4 with Banks PowerPack (a lot of trailering and Scouting with this beast)

2001 Trans Am (wife still driving this one)

2004 GTO (rare Impulse blue /blue interior, 6spd - still have this one in the garage)

2005 CTS-V

2006 STS-V

2011 Silverado 5.3L LT with complete Banks PowerPack

2014 Silverado 5.3L LTZ (current truck - trying not to go too far this time)

[txmuder]

I am on my 3rd 6.2L also (2011 CC, 2012 CC and 2015 CC), I would have no other engine unless they (GM) decided to drop in a 7.0,in the 2012 I swapped this 3.42's with 4.10 and the 2015 I just recently went to 3.73 from 3.23's. Took a small 300 mile trip to just past San Antonio and at an average speed of 80 mph I pulled in to park showing 22.7 MPG (not to bad IMO).

 

Have played a little here and there and all I can say is WOW!!! I'm in love with this truck. It has pulled (open road no traffic) up and well past the 140 mark on the speedo. Digital was showing 152 mph went it hit the rev-limiter (5800 rpm in 8th gear I assume) my programmer is set for.

 

I know some are saying that's to fast, or it shouldn't be done on public roads or get a sports car if you want to go that fast. Hey I was by myself not a vehicle in site and I need a truck and like speed so I say I got both, IMO.

 

[kennerz]

The only thinkg about these trucks going that fast is, 1st I wonder why GM put a 100 governor on them? hit's that so quick the fun is over way too soon. Mainly, can the tires and the driveline take that kind of speed? I dunno you did it, but I would say that's pushing it a little, no way you can woah down a 5500lb truck from those kinda speeds very well. Not judging you, I probably would do that same thing testing it out if my truck wasn't on the stock tune. These trucks really don't struggle with speed at all, never been in a large vehicle that can move like the K2xx with the Ecotech 6.2. I really like my truck too.

 

If you like to run it up like that I would put some quality aftermarket aluminum drive shafts and at least a v rated or higher tire. Check out the GM big brake upgrade. Gotta match speed with safety.

[sailor9908]

I love my 5.3 and now thanks to magnuson I love her even more... just sent new data to the awesome folks at blackbear to see what we can do to fine tune her

[RyanbabZ71]

The only thinkg about these trucks going that fast is, 1st I wonder why GM put a 100 governor on them? hit's that so quick the fun is over way too soon. Mainly, can the tires and the driveline take that kind of speed? I dunno you did it, but I would say that's pushing it a little, no way you can woah down a 5500lb truck from those kinda speeds very well. Not judging you, I probably would do that same thing testing it out if my truck wasn't on the stock tune. These trucks really don't struggle with speed at all, never been in a large vehicle that can move like the K2xx with the Ecotech 6.2. I really like my truck too.

 

If you like to run it up like that I would put some quality aftermarket aluminum drive shafts and at least a v rated or higher tire. Check out the GM big brake upgrade. Gotta match speed with safety.

Because that is what your tires are rated for

 

 

Ryan

[kennerz]

I guess that's what I'm saying. If you re-tune and remove the limiter, you should really have a tire on there that has a better speed rating. Not sure how an OEM tire does at 140+, a catastrophic failure would suck at those speeds.

[Ron.s]

My 20" Goodyears are rated as 111S. 2409 lbs and speed of 112 mph. So 4 tires are rated to carry 9636 lbs. The truck with gas and one passenger is about 5600-5700. The speed rating is sustained speed. So my thinking is that the tires are running almost 1,000 lbs each under max load and should be very safe at short bursts of speed maybe up to 140-150 mph. But any defect in the tire could be deadly.