GMT 900 Trucks General Discussion 2007 - 2013 Trucks | General Discussion

6.2L records

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Old Nov 14, 2011 | 05:13 PM
  #81  
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Originally Posted by Area47
the ls7 tb is a plug and play deal for the 6.2 trucks. 2010 i know for a fact, newer and older, not sure. depends on the blade movement. the connector was the same as well.

the truck is a factory flex fuel, however, i have locked it out of the switchable side unless i load a different tune in it. it doesn't fuel any timing adders for gasoline or e85 now, just straight e85. it pulls so much better without the sudden and abrupt timing change when it hits pe.
Damn! Sure wish mine was a flex-fuel deal. Then we could try your tune in my truck, LOL.

Seriously though, how much does your fuel "economy" suffer running E85 vs. E10?

Congrats on your performance, BTW!
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Old Nov 14, 2011 | 06:29 PM
  #82  
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Originally Posted by Lloyd-TX
Hey - I have an idea - how about a thread for the slowest bolt-on 6.2's (see sig)
Hey what's up man did you ever fig out what was going on with your truck? I remember when I was talking to you at the last ls1 truck shootout your were having some issues with it. Oh I had the pewter crew cab that looked exactly like yours lol.
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Old Nov 14, 2011 | 06:40 PM
  #83  
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Originally Posted by Lloyd-TX
Hey - I have an idea - how about a thread for the slowest bolt-on 6.2's (see sig)
That 14.3 prolly isn't far off in the summer. Your a full weight Denali my truck weighs 54xx with half a tank and my fat *** in it. I'm 240.
I suspect Pat might find some more power in there and get you a lil faster.
Might try again in the cooler weather also!
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Old Nov 14, 2011 | 06:44 PM
  #84  
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Originally Posted by pl4yboy
Good luck my friend. Always like some competition. You'll soon regret launching in 4x4 though. It murders the top end power. I'll be testing at the track next Sunday. I'll give you an idea of how different it is.
Lol yeah same here you done anything else to the truck, more nitrous? Man my truck pulls damn good on the top end with the turbo but could just be me I'll have to take it to the track and find out. So far plans are to go to SAR this coming up Friday if anyone else wants to join...
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Old Nov 14, 2011 | 06:51 PM
  #85  
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Ok guys I just requested the mods add a sticky for the 6.2L records in the gmt900 section under site suggestions. Be sure to go voice your opinion!!
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Old Nov 14, 2011 | 09:11 PM
  #86  
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Originally Posted by Area47
yulp



truck weighs in at 4934. took the spare out, and the 5040 was with the stock exhaust. dropped weight after the muffler change.

three tunes
13.50@102 2.0 60
13.00@103 1.97 60
12.86@105 1.90 60
12.86? So you did it bro? 12's only bolt on's?

Last edited by markislive78; Nov 14, 2011 at 09:24 PM.
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Old Nov 14, 2011 | 10:22 PM
  #87  
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Originally Posted by markislive78
12.86? So you did it bro? 12's only bolt on's?
it did it once, which is why i never made a huge hub bub about it.

also had a lil help in the fuel department. still ethanol based
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Old Nov 14, 2011 | 10:35 PM
  #88  
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Originally Posted by Area47
it did it once, which is why i never made a huge hub bub about it.

also had a lil help in the fuel department. still ethanol based
Corn or not congrats man... ur running 3.73's right?

I knew it could be done. That's why I traded in my 07' Sierra Denali, to have a 12's sec bolt on truck (stock CAM) I did the math over and and over in my head...Mine will be there soon

Last edited by markislive78; Nov 16, 2011 at 03:35 AM.
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Old Nov 14, 2011 | 10:50 PM
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i need to check my motor mounts as well. or strap the motor down. either one.

im still on the 373's. i have the 410's just never put them in. or got around to it actually. in the next few months it's getting a cam.

the fuel was an e85 made using 112 octane instead of regular pump gas.
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Old Nov 14, 2011 | 11:23 PM
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Originally Posted by Area47
the fuel was an e85 made using 112 octane instead of regular pump gas.
How much spark can you run up top with that fuel mix? Your stoich must be around 9:1 right? That bitch must be drink some gas....lol!

Those are some really nice 60' times are you running the 1/4 on street tires?

Last edited by markislive78; Nov 14, 2011 at 11:45 PM.
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