GM Engine & Exhaust Performance EFI | GEN I/GEN II/GEN III/GEN IV Engines |Small Block | Big Block |

SDPC 5.3 Build

Old Sep 4, 2012 | 08:45 PM
  #151  
TXSZ66AVLANCHE's Avatar
TECH Fanatic
iTrader: (7)
 
Joined: Sep 2010
Posts: 1,920
Likes: 2
Default

What is weak is your punctuation....holy hell dude!
Reply
Old Sep 5, 2012 | 06:08 PM
  #152  
Beau@SDPC's Avatar
Thread Starter
Trucks Sponsor
iTrader: (14)
 
Joined: Feb 2009
Posts: 2,265
Likes: 1
From: Lubbock, TX
Default

Dyno #s can be skewed from one dyno to another; different conditions, different correction factors, etc but 324rw/364tq is good for what you have, especially on 22s. Got a graph?

We should have mine back on the rollers soon for some tuning and I'll post new numbers. Only changed were 3.90s and a NNBS Intake, so the two may cancel each other out.
Reply
Old Sep 8, 2012 | 12:23 PM
  #153  
I Drive a 4.8's Avatar
Teching In
 
Joined: Jun 2009
Posts: 32
Likes: 0
From: Hale Center, Tx
Default

Yeah.. I wanna see what's up here... especially since my 4.8 is kickin' 160k and... maybe a 5.3 upgrade would be good. And... SDPC is only a short 45 minute drive from my house.
Reply
Old Sep 9, 2012 | 04:03 PM
  #154  
fastnblu's Avatar
TECH Senior Member
iTrader: (2)
 
Joined: Mar 2008
Posts: 5,718
Likes: 1
Default

Originally Posted by Beau@SDPC
No bare heads at the moment, but I can try to get some done and get some pics posted.

It hasn't gone back on the dyno yet, but a noticeable difference was felt. Also, MPG came up 1-1.5 MPG average.

This Friday, we will be @ Hobbs Motorsports Park in Hobbs, NM and I will finally have a chance to get 1/4 mile timeslips for it. I will use the 1/8th mile numbers and correct them to sea level as I did earlier in this thread to show gains. Hoping the truck will do 15.90s. 4000' DA and 6000 lb truck w/ stock converter and 3.42s (3.90s sitting in box at my desk ). Stock trucks around here will run low 17s, high 16s, so a 15.90 will be a vast improvement.
How did u get the MPG's up?
That's a 10% MPG just about.

Originally Posted by Beau@SDPC
This truck would benefit soooo much from even a 2500 Stall, but I just can't bring myself to putting a converter in the truck before I put one in the car. It needs one desperately. 119mph trap speed on a 2.0 60'!!! Yaaaaaa!

You said it man! Definitely a great bang for the buck cylinder head. Will try to get something for you/everyone soon on bare heads.
It doesn't matter if your truck has a convertor 1st. Does that mean it'll be faster than your car? If it makes u feel any better, prior to my Radix, my truck was almost as fast as my car, which was no slouch for a "pretty stock" 20 yr. old car. Now tho, my truck will annilate it. And yes, it had a convertor b4 the car.

Not sure what the 119 trap speed on a 2.0 60' means?
Reply
Old Sep 10, 2012 | 11:35 AM
  #155  
Beau@SDPC's Avatar
Thread Starter
Trucks Sponsor
iTrader: (14)
 
Joined: Feb 2009
Posts: 2,265
Likes: 1
From: Lubbock, TX
Default

Originally Posted by I Drive a 4.8
Yeah.. I wanna see what's up here... especially since my 4.8 is kickin' 160k and... maybe a 5.3 upgrade would be good. And... SDPC is only a short 45 minute drive from my house.
For sure, give us a call or stop by next time you're in town!

Originally Posted by fastnblu
How did u get the MPG's up?
That's a 10% MPG just about.
Better airflow, better tune, using less throttle (fuel) to get up to speed. It all factors in to increased MPG

Originally Posted by fastnblu
It doesn't matter if your truck has a convertor 1st. Does that mean it'll be faster than your car? If it makes u feel any better, prior to my Radix, my truck was almost as fast as my car, which was no slouch for a "pretty stock" 20 yr. old car. Now tho, my truck will annilate it. And yes, it had a convertor b4 the car.

Not sure what the 119 trap speed on a 2.0 60' means?
Even with a converter, I don't think the truck could outrun either of my Camaros.

I was referring to my LT1 car. It ran 12.24 @ 119mph w/ 2.0 60' on the 150s.
Reply
Old Sep 11, 2012 | 10:20 AM
  #156  
fastnblu's Avatar
TECH Senior Member
iTrader: (2)
 
Joined: Mar 2008
Posts: 5,718
Likes: 1
Default

Originally Posted by Beau@SDPC
...

Better airflow, better tune, using less throttle (fuel) to get up to speed. It all factors in to increased MPG

...
I did the same thing... kinda. Better airflow ala blower. Usin less throttle or tip-in. Trouble is... I know 100+ HP is there, so at times, I use more gas.

I should mention I replaced both front o2's, so that helped MPGs but ya, tune was catered to FI. But still, more power (alot more) & improved MPG's. A solid winning combo every time.

I sent ya a PM too.

Last edited by fastnblu; Sep 11, 2012 at 10:31 AM. Reason: PM sent, edited as such.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Vash3233
GMT 800 & Older GM General Discussion
3
Sep 22, 2019 01:18 PM
USMCvet0311
GM Drivetrain & Suspension
13
Aug 14, 2015 10:28 PM
JordanH
GM Engine & Exhaust Performance
9
Aug 8, 2015 07:59 PM
05GMC4.8
GMT 900 Trucks General Discussion
5
Aug 7, 2015 09:55 PM
06 4.8
GM Parts Classifieds
2
Jul 15, 2015 07:17 PM


Thread Tools
Search this Thread

All times are GMT -5. The time now is 08:26 AM.