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

4.8 is getting better!!! lol

Thread Tools
 
Search this Thread
 
Old 03-01-2012 | 05:44 PM
  #21  
smokeshow's Avatar
Mod with training wheels
iTrader: (16)
 
Joined: Feb 2009
Posts: 7,740
Likes: 204
From: Detroit
Default

Gonna see how the gmt900 4.8 likes an 80mm on top of it here in a couple weeks...
Old 03-01-2012 | 08:15 PM
  #22  
youngone2011's Avatar
Thread Starter
TECH Apprentice
 
Joined: Oct 2011
Posts: 332
Likes: 0
From: Cypress, TX
Default

@ smokeshow...What are the benefits of a larger intake manifold to where I'm at now? Would it be beneficial to swap ... What would I gain or lose?

Last edited by youngone2011; 03-02-2012 at 05:32 AM.
Old 03-02-2012 | 03:15 AM
  #23  
silverado1ss89's Avatar
TECH Enthusiast
 
Joined: Sep 2010
Posts: 576
Likes: 1
From: LOS ANGELES, CA
Default

Yeah u should be getting better times... My best time 9.6 on my heavy stock 20 275/55/20... Like u said maybe a tune for smaller tires u should see easily like 8.7-8... Also u have bigger gears
Old 03-02-2012 | 05:22 AM
  #24  
youngone2011's Avatar
Thread Starter
TECH Apprentice
 
Joined: Oct 2011
Posts: 332
Likes: 0
From: Cypress, TX
Default

I also have really high IATs that I believe are killing power, so I am probably gonna start pulling my headlight
Old 03-02-2012 | 08:59 PM
  #25  
silverado1ss89's Avatar
TECH Enthusiast
 
Joined: Sep 2010
Posts: 576
Likes: 1
From: LOS ANGELES, CA
Default

What the spec on the cam??
Old 03-02-2012 | 09:16 PM
  #26  
youngone2011's Avatar
Thread Starter
TECH Apprentice
 
Joined: Oct 2011
Posts: 332
Likes: 0
From: Cypress, TX
Default

Tsp 220/220 .581 .581 112lsa
Old 03-04-2012 | 10:20 AM
  #27  
youngone2011's Avatar
Thread Starter
TECH Apprentice
 
Joined: Oct 2011
Posts: 332
Likes: 0
From: Cypress, TX
Default

I'm goin back today with my slicks !!!! I'll post it up this evening
Old 03-04-2012 | 10:40 AM
  #28  
62nalide's Avatar
TECH Fanatic
iTrader: (1)
 
Joined: Sep 2010
Posts: 1,953
Likes: 2
From: Dallas TX
Default

Originally Posted by youngone2011
I'm goin back today with my slicks !!!! I'll post it up this evening
cool lets us know as ssoon as u get ur time slip lol i wanna know too
Old 03-04-2012 | 06:57 PM
  #29  
youngone2011's Avatar
Thread Starter
TECH Apprentice
 
Joined: Oct 2011
Posts: 332
Likes: 0
From: Cypress, TX
Default

8.7 at 81 with a 1.9 60' and also I had my 20's on the front ... And my truck was freaking out when I went to slow down ... Is that normal with 26" tires on back and 30" on front ...
Old 03-04-2012 | 07:41 PM
  #30  
jrmchevyman's Avatar
TECH Enthusiast
 
Joined: Oct 2010
Posts: 727
Likes: 1
From: FL
Default

8.7 in the 1/8th is about a 13.62 in the 1/4th. Is the slicks the only thing you changed vs the run in the first post?


Quick Reply: 4.8 is getting better!!! lol



All times are GMT -5. The time now is 10:39 AM.