Tuning, Diagnostics, Electronics, and Wiring HP Tuners | EFILive | Hand Held Programmers | Stand Alone PCM's | Electronics | Wiring Diagrams

Where is the power?

Thread Tools
 
Search this Thread
 
Old Dec 17, 2011 | 11:40 AM
  #11  
brandon6.0's Avatar
Thread Starter
TECH Resident
iTrader: (26)
 
Joined: Dec 2009
Posts: 937
Likes: 8
From: Glennville GA
Default

[QUOTE=gavin2005;4831687]
Originally Posted by brandon6.0
i changed the filter it didnt help any. i dont have a fuel pressure gauge. wide band shows it going really lean at ant throttle besides cruisin. id say any rpm more than 3000.[/Q you can go buy a cheap fuel pressure gauge with hose to hook it up to scrender valve at parts store.if you cant figured it out pm me and i will give you my number and i will help you.
i will pm in you now.

Originally Posted by AndysC3
crank relearn?
This is kinda what i am thinking. Says this needs to be done whenever a cam is swapped or any thing that effects the cam and crank sensors. THis makes me think this is the problem. LIke timing is out of wack or something. Maybe fuel also tho.
Reply
Old Dec 17, 2011 | 03:19 PM
  #12  
Beatdown Z's Avatar
Laid Back
15 Year Member
iTrader: (18)
 
Joined: Jan 2007
Posts: 2,389
Likes: 10
From: Newark, DE
Default

Occasionally Nelson has bad uploads or will forget to adjust everything in the tune. Have you tried contacting him about the issue?
Reply
Old Dec 17, 2011 | 04:30 PM
  #13  
brandon6.0's Avatar
Thread Starter
TECH Resident
iTrader: (26)
 
Joined: Dec 2009
Posts: 937
Likes: 8
From: Glennville GA
Default

Nelson has done me pretty good so far. But i did figure out the problem. I went and got a fuel pressure gauge. I had to prime the pump 4 times to get it to 40 psi. Thin it would do nothin but drop down to nothin any time u hit the gas. I stole the pump out of my stand alone and swapped it and its workin perfect. 50 psi on start and 60 at WOT. i geuss my 255 finally took a dump.
Reply
Old Dec 17, 2011 | 04:33 PM
  #14  
brandon6.0's Avatar
Thread Starter
TECH Resident
iTrader: (26)
 
Joined: Dec 2009
Posts: 937
Likes: 8
From: Glennville GA
Default

took it for a test drive and noticed that my AFR is going down into 10.5-10 readings at WOT. Is this good to drive on? i know its really rich. Gonna call them monday and have him retune it.
Reply
Old Dec 17, 2011 | 05:04 PM
  #15  
dirt track racer 81's Avatar
TECH Senior Member
iTrader: (45)
 
Joined: Jun 2005
Posts: 9,439
Likes: 13
From: Hennessey, Oklahoma
Default

That's too rich. N/a or boosted?
Reply
Old Dec 17, 2011 | 08:46 PM
  #16  
brandon6.0's Avatar
Thread Starter
TECH Resident
iTrader: (26)
 
Joined: Dec 2009
Posts: 937
Likes: 8
From: Glennville GA
Default

yeah i thought so. I asked him to get me in the 12.5 range on motor thin gonna bring it into the 11.5 range on spray. What yall think? O yeah how much difference in power would i see gettin this AFR where i want it?
Reply
Old Dec 17, 2011 | 09:20 PM
  #17  
dirt track racer 81's Avatar
TECH Senior Member
iTrader: (45)
 
Joined: Jun 2005
Posts: 9,439
Likes: 13
From: Hennessey, Oklahoma
Default

General idea on spray is to get the afr at were you make your most power n/a. Do some research on reading plugs.
Reply
Old Dec 17, 2011 | 09:24 PM
  #18  
brandon6.0's Avatar
Thread Starter
TECH Resident
iTrader: (26)
 
Joined: Dec 2009
Posts: 937
Likes: 8
From: Glennville GA
Default

yeah i will be reading plugs. Been researching this on ls1tech. Plus got a few guys to help me with dialing this in right. Gonna start with what i said before and go from there. Way better choice than 10 somethin AFRs that i have right now.

They say lean is mean lol.
Reply
Old Dec 18, 2011 | 01:04 AM
  #19  
Beatdown Z's Avatar
Laid Back
15 Year Member
iTrader: (18)
 
Joined: Jan 2007
Posts: 2,389
Likes: 10
From: Newark, DE
Default

You're going to have to send some HP Tuners logs, with a wideband hooked up, to Nelson if you want him to get it dialed in perfect at 12.5 AFR. Otherwise, you're going to be wasting a lot of money on shipping pcms back and forth with him just guessing where to set your VE and MAF tables.

Do you have a wet kit? If so, then you just dial in the afr by adjusting the fuel or nitrous jets.
Reply
Old Dec 18, 2011 | 10:00 AM
  #20  
brandon6.0's Avatar
Thread Starter
TECH Resident
iTrader: (26)
 
Joined: Dec 2009
Posts: 937
Likes: 8
From: Glennville GA
Default

yeah that would be the best option. Yeah i run a wet kit. Ill control the AFR on spray with jets like u said.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
andrewlong
Tuning, Diagnostics, Electronics, and Wiring
1
Nov 9, 2016 09:38 AM
Superman09
Sponsor's Announcements, Sales, and Specials
9
Sep 25, 2015 05:55 AM
Brandonlflr12
GM Engine & Exhaust Performance
1
Sep 9, 2015 03:54 PM
andrewlong
Powerstroke Diesel Performance
0
Sep 8, 2015 10:25 PM




All times are GMT -5. The time now is 11:01 AM.