PCM Diagnostics & Tuning HP Tuners | Holley | Diablo
Sponsored by:
Sponsored by:

Trouble tuning twin turbo 5.3 with Hptuners log and tune inside

Thread Tools
 
Search this Thread
 
Old 04-07-2015, 06:31 PM
  #1  
Staging Lane
Thread Starter
 
Elledge12's Avatar
 
Join Date: Sep 2012
Posts: 55
Likes: 0
Received 0 Likes on 0 Posts
Default Trouble tuning twin turbo 5.3 with Hptuners log and tune inside

I am having a hell of a time trying to get this thing dialed in. Its my first time tuning a vehicle but I have spent an enormous amount of time reading and learning all I could before I started. The first mistake I made was using someone else's tune to get an operating system that I could use a 3 bar SD tune with. This changed almost every table in the tune but I went back through and changed them back to stock. With that said, to get the car to run decent my VE table has to be jacked way up. On top of that it won't idle well unless the AFR's are in the 8's. I think I may have bad injector data but I am not sure. Any help is appreciated.

100% stock 2001 lm7 5.3
twin 56/58 turbos
80lb siemens deka injectors
innovate lc-2 wideband

If you guys need any more info just let me know.
Attached Files
File Type: hpl
TT datsun log 3.26.15.hpl (492.4 KB, 96 views)
File Type: hpt
datsun TT 3-bar OS.hpt (456.1 KB, 110 views)
Old 04-07-2015, 06:55 PM
  #2  
10 Second Club
iTrader: (22)
 
SPRAYED 01's Avatar
 
Join Date: Mar 2006
Location: Northwest side of Chicago
Posts: 3,677
Likes: 0
Received 2 Likes on 2 Posts

Default

Your really going to have to get good injector data and then look at other things. I did notice your ve table is messed up but this mean nothing if injector data is not correct.

Your afr gauge reads down to 8:1? If so that can not be right.
Old 04-07-2015, 06:57 PM
  #3  
Staging Lane
Thread Starter
 
Elledge12's Avatar
 
Join Date: Sep 2012
Posts: 55
Likes: 0
Received 0 Likes on 0 Posts
Default

Where can I get Injector data for the siemens deka 80's I have? I bought them from my cousin who never used them but I didn't get any data with them.

Why wouldn't an AFR gauge read down to 8?
Old 04-07-2015, 07:01 PM
  #4  
10 Second Club
iTrader: (22)
 
SPRAYED 01's Avatar
 
Join Date: Mar 2006
Location: Northwest side of Chicago
Posts: 3,677
Likes: 0
Received 2 Likes on 2 Posts

Default

Also, I have the greg banish dvd with injectory data. Ill check tomorrow to see if those are included.
Old 04-07-2015, 07:06 PM
  #5  
Staging Lane
Thread Starter
 
Elledge12's Avatar
 
Join Date: Sep 2012
Posts: 55
Likes: 0
Received 0 Likes on 0 Posts
Default

That would be much appreciated sprayed 01! I would love to get this running right, I don't even like driving it to tune it the way it is.
Old 04-07-2015, 07:07 PM
  #6  
Staging Lane
Thread Starter
 
Elledge12's Avatar
 
Join Date: Sep 2012
Posts: 55
Likes: 0
Received 0 Likes on 0 Posts
Default

Also, if anyone else has any comments let's hear em'
Old 04-08-2015, 12:26 PM
  #7  
Staging Lane
Thread Starter
 
Elledge12's Avatar
 
Join Date: Sep 2012
Posts: 55
Likes: 0
Received 0 Likes on 0 Posts
Default

bump....
Old 04-09-2015, 12:59 AM
  #8  
8 Second Club
iTrader: (3)
 
RonSSNova's Avatar
 
Join Date: Aug 2011
Location: Portland, OR
Posts: 4,599
Received 699 Likes on 440 Posts

Default

The injector flow rate follows the fuel pressure.
That said, if you are running a typical GM system at 58 psi, that injector data is wrong. it's too low.

The Banish data pretty much assumes you are running GM fuel pressure of 58 PSI. Which makes those 80lb injectors more like 89lb injectors.

It looks like all the data is wrong actually. Volts vs kpa, short pulse adder, min pulse width etc.

Also, folks typically run a boost referenced fuel pressure regulator. Are you?

Ron
Old 04-09-2015, 11:18 AM
  #9  
Staging Lane
Thread Starter
 
Elledge12's Avatar
 
Join Date: Sep 2012
Posts: 55
Likes: 0
Received 0 Likes on 0 Posts
Default

Right now I am running the corvette FPR. When I do a cam swap and turn up the boost I was going to switch to a boost referenced FPR. Just waiting on money...

Well even though its all wrong, its encouraging news. I've been beating my head off the wall trying to get this figured out. Do you know where I can get the Banish injector Data? I definitely do not have 250 dollars for a DVD. I have spent a couple hours online trying to find the data with no luck also.

Thanks Ron!

Last edited by Elledge12; 04-09-2015 at 11:24 AM.
Old 04-09-2015, 12:11 PM
  #10  
TECH Senior Member
iTrader: (25)
 
2xLS1's Avatar
 
Join Date: Nov 2001
Location: Warr Acres, OK
Posts: 5,649
Likes: 0
Received 8 Likes on 8 Posts

Default

You won't find the Banish data posted anywhere. He takes people to court for doing that or sharing his data. And he takes that real serious.
Old 04-09-2015, 12:49 PM
  #11  
Staging Lane
Thread Starter
 
Elledge12's Avatar
 
Join Date: Sep 2012
Posts: 55
Likes: 0
Received 0 Likes on 0 Posts
Default

Sorry, my bad. I did not think it was a big deal cause everyone seems to run these injectors. Is my only option to buy his DVD? Is his data the only way to make my car run right?

Sorry for all the questions but this injector data stuff is the only thing that I am having trouble wrapping my head around. And again I appreciate the help that everyone is giving me.
Old 04-09-2015, 12:58 PM
  #12  
TECH Senior Member
iTrader: (25)
 
2xLS1's Avatar
 
Join Date: Nov 2001
Location: Warr Acres, OK
Posts: 5,649
Likes: 0
Received 8 Likes on 8 Posts

Default

I'm not saying no one shares it. Probably just not publicly.
Old 04-09-2015, 01:44 PM
  #13  
Moderator
 
mrvedit's Avatar
 
Join Date: Aug 2010
Location: Ann Arbor, MI
Posts: 7,083
Received 398 Likes on 304 Posts

Default

Originally Posted by 2xLS1
I'm not saying no one shares it. Probably just not publicly.
Correct. Technically the injector data on the Branish DVD is copyrighted material and therefore cannot be openly posted or shared here.
Old 04-09-2015, 04:49 PM
  #14  
Staging Lane
Thread Starter
 
Elledge12's Avatar
 
Join Date: Sep 2012
Posts: 55
Likes: 0
Received 0 Likes on 0 Posts
Default

That makes sense, I'm not trying to do anything against the law/rules. Either way if anyone cares to take a look is there anything else obviously wrong with my tune? or will the injector data fix what I have going on?



Quick Reply: Trouble tuning twin turbo 5.3 with Hptuners log and tune inside



All times are GMT -5. The time now is 04:24 AM.