08 Silverado Crew Cab Z71 Half Ton With 6.0 Vortec Maxx Mods Include....gm Performance Cold Air Intake....superchips Set At 87 Ocatane....magnaflow Cat Back...and Throtle Body Spacer And This Thing Is A Pig From Idle To About 3500 Rpm It Wont Even Break The Tires Loose At A Red Light With The Traction Control Off...does The Computer Need To Be Reflahsed At The Factory Or Is This Normal Performance From 50 To 100 Is Moves Damn Good Just Wish It Was Alot Faster Out Of The Hole Thanks In Advance For Your Help

Buster

 

pick a thread.

https://www.performancetrucks.net/fo...d.php?t=426731

 

You wasted your money on every single mod you did.

Get a Wheatley 93 tune (search this forum and contact him). I never thought the lowend on the 6.0 was all that great. Honestly, it wasn't that much better than the 4.8 under 2000. However, the LQ9 would absolutely destroy my 255/70/16's off the line with just a half throttle stab. I never floored it from a stop because I would have just sat there smoking.

I'm assuming you have 20s? Those hurt performance. What gear ratio do you have?

 

A good tune, longtube headers and some lighter tires will get you movin real fast!

 

you are right i do have 20s and the gear ratio is 3.73 i will check into the wheatley 93 tune but would that require me to run 93 ocatane fule

 

You want best performance, you gotta pay. Come on, it's only $5 more a tank.

And those 20s are really hurting you off the line.

I had 30" tires with 3.42s and the 6.0 would absolutely murder them down low. Now with 31.5" tires (3.30 effective gear ratio) I lost a significant amount of torque off the line.

 

where is this wheatley guy located and what does he charge im in south texas and what would happen if i set my superchips tuner to 93 octane and run the 93 fuel

 

Wheatley is in Houston. He's one of the best tuners out there and it will be much, much better than your superchips tuner. I caught Wheatley when he was having a sale it was $315 I think for the tune and a $100 refund if you send him your stock PCM after you install the one he sends you. I chose to keep my stock PCM so that I could revert back to 87 octane if I wanted.

 

Nothing personal man, but you have to accept the fact that you are basically clueless about performance. You have wasted well over $1000 on stuff that added maybe 20 rwhp total.

Wheatley is located in Houston Texas. He is one of the better tuners around. Nelson performance is in San Antonio and is another good tuner. If you can drive to either place I would do that.

If you can't do that I would choose a tune from Justin at Blackbear performance over both of them or any tuner for that matter. He is very thorough, has the best customer service, and unlike Nelson, he doesn't charge a ridiculous amount for his tunes.

As for your superchips: put your truck back to stock and sell it. They are a joke compared to custom tunes. People think they're great because it's a magical box that makes your truck faster, but the gains are minimal.

As for running 93 octane, you will pay more for the extra gas, but you are looking at $5 more per tank to run 93 octane. Most people see an increase of 2 mpg going from 87 to 93 octane. That means you can drive 50 more miles per tank which will more than pay for that extra $5.

 

no offense taken bro i have been a diesel man all my life this is my first gas and i basically did the same mods to my diesel and it made a big difference thought it would be the same on a gasoline thanks for all the help and i will sell the tuner....san antonio is only 2 hours away and houston is about 3.5 so which way should i go


buster