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

6.2 ordered a converter

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Old Aug 26, 2011 | 03:25 PM
  #11  
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Oh yeah I'm on 285/70-17 DuraTracs. On stock tires or shorter this truck feels like it would be a real animal.
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Old Aug 26, 2011 | 03:27 PM
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Originally Posted by ak2007r6
Mine is and I believe his is but not positive....
...Pretty sure your truck is a 4x4...
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Old Aug 26, 2011 | 03:31 PM
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Yeah I was just gonna say that, since I just read it in an unrelated thread :wtf:
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Old Aug 26, 2011 | 03:38 PM
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Originally Posted by rjwz28
4wd here; only idea I've got for my truck's performance is Phil's time. He ran a low 15 et with the same truck (CCSB NHT) on the same size tires, but in 4wd and he's stock other than the level and tires. With my intake and tune and a 2wd launch I feel like I'm at least mid-14 territory, but I've got nothing but a close race with a 3v GT to back up my hunch.
I have done quite a few runs in 2WD and 4X4 and am sticking with 4WD launches and shifting to 2WD after I shift out of first. After pulling the ABS fuses to remove all traction control I couldn't hook for **** in 2WD. Tried both stock tires and the street tires I picked up and all I would do is spin till 3rd gear.
Originally Posted by AKlowriderZ71
...Pretty sure your truck is a 4x4...
Yea not sure how I read that wrong.. Yes my truck is 4x4...which is what I thought he was asking.
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Old Aug 26, 2011 | 03:42 PM
  #15  
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Yeah I feel like I would do the same thing on the stock rubber or anything shorter, but on the fatter, taller, heavier Duratracs I spin hard off the line but then hook and keep pulling from there. If I launch in 4x4 it feels slower.
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Old Aug 26, 2011 | 03:50 PM
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Hmm my 4x4 launches feel pretty aggressive, actually got them to chirp going into second gear a couple times. I would like to get some slicks or better tires to try but with the season coming to an end I don't want to drop that much money
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Old Aug 26, 2011 | 04:08 PM
  #17  
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Who did your tune? 93 or 91?
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Old Aug 26, 2011 | 04:21 PM
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AKlowrider and 90.. don't think I have seen 91 from a pump up here.
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Old Aug 26, 2011 | 08:20 PM
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Originally Posted by ak2007r6
Hmm my 4x4 launches feel pretty aggressive, actually got them to chirp going into second gear a couple times. I would like to get some slicks or better tires to try but with the season coming to an end I don't want to drop that much money
Man, that's a hard running truck! I'm curious what tire size you're running, and what body style your truck is. My new EC ran a best of 15.2 with your same motor, 4WD launch and 3.73 gears but like rj said, the same 285/70-17 tire size as he has. You're beating me by more than a second so I'm curious if that's all in the tune or what.

I'm still strictly stock; tune on the way.
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Old Aug 26, 2011 | 08:44 PM
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Damn Phil, it's been so long since I've seen photos of your truck that I forgot you were EC and thought you had a CCSB like me oh well, I really doubt if my setup weighs anything more than yours at this point anyway. Yeah, a tune will really wake that truck up, you'll feel it and love it. I'm trying to FI my truck right now, it's just a matter of getting my ducks in a row
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