SDPC 5.3 Build
09-05-2012, 06:08 PM
#152
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.
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.
09-08-2012, 12:23 PM
#153
Teching In
Join Date: Jun 2009
Location: Hale Center, Tx
Posts: 32
Likes: 0
Received 0 Likes
on
0 Posts
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.
09-09-2012, 04:03 PM
#154
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.
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. That's a 10% MPG just about.
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.
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.
Not sure what the 119 trap speed on a 2.0 60' means?
09-10-2012, 11:35 AM
#155
Better airflow, better tune, using less throttle (fuel) to get up to speed. It all factors in to increased MPG
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?
Not sure what the 119 trap speed on a 2.0 60' means?
I was referring to my LT1 car. It ran 12.24 @ 119mph w/ 2.0 60' on the 150s.
09-11-2012, 10:20 AM
#156
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; 09-11-2012 at 10:31 AM. Reason: PM sent, edited as such.
Thread
Thread Starter
Forum
Replies
Last Post
05GMC4.8
GMT 900 Trucks General Discussion
5
08-07-2015 09:55 PM
