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

Sneaky Silverado

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Old May 18, 2013 | 07:16 AM
  #201  
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Originally Posted by dick_landy
So far the truck made 486rwhp/498rwhp with no meth injection on 91 octane. Had it up to 504rwhp but once the truck starts getting hot it would ping so the tune was backed off a bit. Turned the meth on and it dropped power by about 40hp so there's some playing around to do.

Lysholm Silverado- 486rwhp/498rwtq - YouTube
What AFR? Timing? I made my best numbers with the 2.3 Lysholm with 11.6 AFR and 16 degrees timing on 93 octane. That was with the 3.65" pulley at sealevel.
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Old May 26, 2013 | 12:09 PM
  #202  
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With near 500rwhp, these should help nail down solid 60' times!

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Old Jun 1, 2013 | 12:42 PM
  #203  
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New times were better than I expected!


Last edited by dick_landy; Apr 14, 2017 at 07:28 AM.
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Old Jun 1, 2013 | 01:41 PM
  #204  
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I just went 11.81@ 116.81 with a 1.62 60'
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Old Jun 1, 2013 | 03:50 PM
  #205  
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Originally Posted by dick_landy
I just went 11.81@ 116.81 with a 1.62 60'
Suh-WEET!
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Old Jun 19, 2013 | 03:38 AM
  #206  
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Originally Posted by dick_landy
I just went 11.81@ 116.81 with a 1.62 60'
Well done
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Old Jun 19, 2013 | 12:58 PM
  #207  
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Originally Posted by dick_landy
I just went 11.81@ 116.81 with a 1.62 60'

awesome job building a fast truck!

what would be cool is if you could put together a time line,mods done and ETs all the way from the begining to now.

Last edited by gonzo 6.2; Jul 20, 2013 at 10:00 AM.
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Old Jun 19, 2013 | 03:21 PM
  #208  
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nice time
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Old Jun 19, 2013 | 05:14 PM
  #209  
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Thanks guys.

Good idea on the mod/ET progression, I'll put that together soon.

After I ran 11.81 I went out and had a custom 3" pulley machined because they aren't available for my blower. I haven't had it retuned for it yet but I started spraying meth to at least compensate a little to see what the added boost was like.



Needless to say it was enough to break 3 teeth of the Eatons spider gears!

Once I fix that, get a diff cover with bearing cap supports and a retune ill get new track times, I'm thinking they'll be sub 11.50's.

Last edited by dick_landy; Apr 14, 2017 at 07:30 AM.
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Old Jul 19, 2013 | 10:00 PM
  #210  
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Took a little while but I got a new center section under warranty and got the 800lb springs tossed in no charge.
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