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2.0 LSJ Engine: How to tune 60lb injectors - 56k = ZZzzzzz...

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Old May 13, 2008 | 10:12 PM
  #51  
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Okay. I updated it. Return fueling is post #2
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Old May 14, 2008 | 10:51 AM
  #52  
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From: Still fixing others mistakes.
you really don't want to know what my idc's are
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Old May 14, 2008 | 07:26 PM
  #53  
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Originally Posted by Area47
you really don't want to know what my idc's are
lol. With which tune? lol
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Old May 15, 2008 | 12:10 AM
  #54  
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when working with logging the VE PWs in the histogram should the car be in open loop or closed loop?
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Old May 15, 2008 | 12:18 AM
  #55  
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Originally Posted by Rodimus_Prime
when working with logging the VE PWs in the histogram should the car be in open loop or closed loop?
Open loop. You can set the histo on a MAF table if it makes it easier for you too. I like it on the VE table because it shows more the trends. Remember you should still be in MAF mode when doing this. Your just using the VE table histo to get PW data, not to make changes to your VE table.
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Old May 16, 2008 | 12:11 PM
  #56  
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Sweet howto Steve! You're the man!
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Old May 16, 2008 | 12:19 PM
  #57  
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Originally Posted by BlackSS/SC
Sweet howto Steve! You're the man!
Tanks, dude.
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Old May 16, 2008 | 12:28 PM
  #58  
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awesome write up man
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Old May 16, 2008 | 12:40 PM
  #59  
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Originally Posted by jimbos'ss
awesome write up man
Thanks Jimbo. Can't wait to see how this is working for people. I've had great success from people who I've worked with over email and what not (and of course people I've tuned), but I am hoping that this how-to will be enough info for people to be able to tune these injectors themselves.
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Old May 16, 2008 | 12:59 PM
  #60  
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The car idles better than it ever has. Thanks for the help. I'm headed to the dyno in a few hours!
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Old May 16, 2008 | 01:14 PM
  #61  
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Originally Posted by n8g
The car idles better than it ever has. Thanks for the help. I'm headed to the dyno in a few hours!
Sweet. Can't wait to see the dyno numbers. What was your last dyno run?
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Old May 16, 2008 | 01:17 PM
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I have never dynoed the car before. Anything over 240 and I'll be happy. I'm more interested in the track times and 2-3 highway pulls. My Camaro dynoed around 370HP but ran 11's. I'm willing to give up some power to get good MPG and reliability.
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Old May 16, 2008 | 01:21 PM
  #63  
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Originally Posted by n8g
I have never dynoed the car before. Anything over 240 and I'll be happy. I'm more interested in the track times and 2-3 highway pulls. My Camaro dynoed around 370HP but ran 11's. I'm willing to give up some power to get good MPG and reliability.
Personally, I think you'll kill 240. Let me know how it goes, okay?
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Old May 16, 2008 | 03:02 PM
  #64  
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Will do. I like to aim low and be surprised if I do better.
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Old May 16, 2008 | 11:54 PM
  #65  
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I cant thank SJ enough........car runs so much better and all my knock seems to be gone now........all the idle surging, lean idle....gone.
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Old May 17, 2008 | 10:22 AM
  #66  
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I had issues last night at the dyno. On all 12 pulls, my car dumps fuel in @ 5800 then climbs back to mid 11s. There is a post about it on HP Tuner's website. Graph to follow.

http://www.hptuners.com/forum/showthread.php?t=17535

Anyone else have this issue?
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Old May 17, 2008 | 10:44 AM
  #67  
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From: Still fixing others mistakes.
set your dynamic airflow at 1500 disable 1400 enable.
then see what happens
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Old May 17, 2008 | 10:53 AM
  #68  
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I saw the work around. Unfortunately the version of HP tuners was 2.2.00, not 2.2.20. I am going back next week to get the tune cleaned up. I did make about 10-15 HP and 10 ft/lbs less than I was expecting. Image is uploading now.
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Old May 17, 2008 | 10:56 AM
  #69  
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im still working with the beta release of hpt. downloaded the new one, but it never changed? dunno.

i have never seen a 2.85 car freak like that and dump fuel. thats the only suggest i can give ya without physically being with the car on the dyno to watch it
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Old May 17, 2008 | 11:08 AM
  #70  
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Old May 17, 2008 | 01:00 PM
  #71  
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Originally Posted by Kennyspec
I cant thank SJ enough........car runs so much better and all my knock seems to be gone now........all the idle surging, lean idle....gone.
Very cool.

Originally Posted by n8g
I had issues last night at the dyno. On all 12 pulls, my car dumps fuel in @ 5800 then climbs back to mid 11s. There is a post about it on HP Tuner's website. Graph to follow.

http://www.hptuners.com/forum/showthread.php?t=17535

Anyone else have this issue?
Damn, that sucks. It looks like the same issue many have been having around that same area that the dynamic flow table helps solve. I kinda wish I had the tune and an HPT log to look at. Looks like you were on your way to making some good hp numbers untill you started dumping fuel.

Last edited by SJSchafer; May 17, 2008 at 01:00 PM. Reason: Automerged Doublepost
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Old May 17, 2008 | 01:47 PM
  #72  
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The file is on my friend's computer. I'll post it when I can.
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Old May 17, 2008 | 02:15 PM
  #73  
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SJ, PM sent...

n8g, damn that sucks. i hope i dont run into any problems like this. those look like stage 2 power numbers I am hoping to put down 250, but i know im probly going to be severely disappointed. i need meth injection like a ************ but i is teh poor

i would also like to check out that tune, just out of curiousity
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Old May 17, 2008 | 05:34 PM
  #74  
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Originally Posted by Bika
SJ, PM sent...

n8g, damn that sucks. i hope i dont run into any problems like this. those look like stage 2 power numbers I am hoping to put down 250, but i know im probly going to be severely disappointed. i need meth injection like a ************ but i is teh poor

i would also like to check out that tune, just out of curiousity
PM answered, but to clarify for others:

You noticed that the tune I sent you with the 60s you bought from me were different from the numbers on the how to. Basically the IFR, modifier and adder tables. The injectors that I sold you were flowed at a different static rate than the ones I am running now (which the how to is based on). I believe that the difference was actually around 1-2 lbs/hr. Also, the adders were a little different with the 2 sets of injectors. Just goes to prove that everyone's injectors are going to be a bit different, have different flowrates and adder charactieristics.

Yea, you'll hit 250... IF you can get your car to stop hating you.
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Old May 17, 2008 | 09:04 PM
  #75  
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Originally Posted by SJSchafer

Yea, you'll hit 250... IF you can get your car to stop hating you.
lol not likely
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