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Thread: Need help with new tune 427/L92/L76

  1. #1
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    Default Need help with new tune 427/L92/L76

    Well guys I just got back from a trip to a local tuner and in my opinion got really screwed in the deal. I spent 700 for a tune that was FAR from complete, and for an oil change and to install a MAF. Well on top of that i also spent over 2000 to rent a truck, trailor, 3 days hotel stays, food, gas etc etc just to get it out to him. Well it was suppose to be tuned weds I got there early weds morning and he hadnt gotten the lisense from EFI live so he had to wait ok, well gave him the MAF as he and others had suggested me to get a maf, showed him the website with the wiring diagram and the MAF calibrations so that he could load um. Anyway then the next prob, he said my HP tune was locked so i downloaded my stock tune and it unlocked it kinda weird since I dont even know how to lock it, but ok. Then he couldnt get it to run right and later found that he hadn't put in the MAF calcs as I had told him he needed to. Long story short got home started it the car idled like crap and threw a bunch of codes. Tried to drive it and it still ran bad worse then when I had tried tuning it myself with HP in SD. Thought maybe it needed to relearn as the altitude had changed 3000 ft, so undid the batt and let it sit all night. Hooked it back up still ran bad recieved my EFI live setup this morning and downloaded the tune and noticed that my spark table was not really that great, the IFR was off a bit and my speedo was not changed, all my DTCs were still in play even though I had no rear O2s, no egr, no air pump, no cats, etc etc. I am crossing over from HP and having very little fun doing so but need some thoughts on what I need to do to make the tune run much better. I need the trans to shift properly and the stall to apply and release properly. I am loading the tune that was installed and the tune that I have been working on all day to rectify the problem which is labeled 0001. Please any and all help is GREATLY appreciated. Heard you guys acually help out a fellow tuner heres a list of everything thats done to the car

    02 Trans am

    7.0L LS7 block with forged -4cc Mahle pistons, 1.5mm powerpac rings, callies rods, Eagle forged crank, 24 tooth reluctor wheel, 7.0 GM MLS head gaskets, ARP head, rod, and main studs and bolts, Stock untouched brand new L92 heads with upgraded comp springs good for 650 lift, stock L92 rockers, stock untouched new L76 intake with matching 40 pound injectors, Racetronics intank 340 walbro pump with hotwire wiring installed, stock L76 fuel rail, 90mm throttle body cable operated, 100mm lingenfelter MAF, MSD wires, stock 02 coils, NGK TR6 spark plugs, MTI clear lid, K&N filter, 4in silicone connector, Vengeance camshaft specs are 238,254 duration 605,598 lift, 114 lobe sep 110 intake centerline +4 advance ground in, Kooks 1 7/8s headers with matching kooks dual 3in non catted Y-pipe, corsa catback, moser rear with 3.50 gears, 315/30/18 rear tires, 4l60E trans stock, 2800 stall converter, car has no emissions components on it.
    Attached Files Attached Files

  2. #2

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    Bandit,

    Just did a GTO with basically the same mods........whats the big deal with your tuner??

    I'll check out your tune in the morning and see if I can help.

    Howard

    www.redline-motorsports.net

    1-954-703-5560

    2006 ZO6 895/866 with APS TT
    2010 SSRS Camaro HTR-900TT (798/801)
    2011 HTR-850R Camaro
    2012 ZL1 Auto (10.33@135 MPH) Video Here!

  3. #3

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    Holy crap!

    30 degrees timing! Too much timing up top and not enough down low for starters!

    www.redline-motorsports.net

    1-954-703-5560

    2006 ZO6 895/866 with APS TT
    2010 SSRS Camaro HTR-900TT (798/801)
    2011 HTR-850R Camaro
    2012 ZL1 Auto (10.33@135 MPH) Video Here!

  4. #4
    Lifetime Member GMPX's Avatar
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    Nice gesture Howard, keep us posted guys

    Cheers,
    Ross
    I no longer monitor the forum, please either post your question or create a support ticket.

  5. #5
    Lifetime Member Bruce Melton's Avatar
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    Bandit,
    Where are you located?

    Howard,
    I have a few tunes that should work to start but from C5s with stock MAF and MN6. This is obviously a biggish project-

    2000 C5 Coupe, 6M, Callies/Mahle stroked LS7 (441), Blackwing, Halltech, LS3 intake, 90mm Shaner TB, ported L92 heads, FAST 50# inj, not too much cam, Kooks 1 7/8" headers , 3" catless mid pipes, Z TIs, track suspension, , 3:90 rear, EFI V2, LM-2, etc.
    PowrMax Performance

    100 mm PowrMAF

    LM-2 EFILIve package with TAQ -sLM2 V-2 serial cable> Package deals

  6. #6
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    Hey thanks for the replies and I was told by the tuner that he dynoed it and 30 degrees gave him the most horsepower and I agree with the timing downlow hence Y you see that I added quite a bit downlow in my tune but keep the same up top. I am not going to go into details or name names thats not the kind of person I am. Me being a tuner for less than 4-5 monthes and he supposed to be a master with 14 years experience its really bad that I took one look at this tune and knew how screwed it was. Maybe it was because he had kept me there 2 extra days anyway or was tired, bad day at home I dont know. I did reasearch and the replies I got said I would be in good hands. Lesson learned I guess I am located in layton Utah and the car NEEDED to be ready to race on SAT, which of course it wasnt, cause I am dropping in the points race cause the cars not running right. All help would be greatly appreciated thanks guys

  7. #7
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    Bruce the MAF is not stock its the lingenfelter 100mm MAF and they give you the calcs to use that get you pretty darn close. Whats an MN6??? This is also in an 02 trans am ot a vette. Howard appreciate the help as well thanks to both you guys.

  8. #8
    Lifetime Member Doc's Avatar
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    Sorry to hear about the situation. I take it you have a wideband setup? Are you familiar with getting the car in OLSD? AutoVE?

    2000 Silverado Full Size 4x4: Forged 6.2, H/C F1R Procharger
    98A4 Z28: 02 PCM H/C Forged 347, 9" Moser 3.73
    V1 V2 99+up RR COS #5 OLSD Dual Stg N20
    www.efialchemy.com
    www.greatamericancarwar.com

  9. #9
    Lifetime Member Bruce Melton's Avatar
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    Quote Originally Posted by bandit
    Bruce the MAF is not stock its the lingenfelter 100mm MAF and they give you the calcs to use that get you pretty darn close. Whats an MN6??? This is also in an 02 trans am ot a vette. Howard appreciate the help as well thanks to both you guys.
    I am willing to give you a tune that I did for our LS7s with ported L92 heads for C5s. The specs are similar to yours, that you listed but you will need to adapt the tune to your car in several areas- MAF, injectors (SVO 42s), TB (LS7), cam and MN6 (which is manual trans) etc.. I am not big on mail order tunes so it is up to you or Howard to adapt the tune to your car. I can tell you the tune does address the areas that look bad from the tune you posted.
    Your VE table looks contrived.
    For a being a relatively new to EFI live guy (without a wideband?) you are in a difficult position, but I guess you know that.
    Last edited by Bruce Melton; August 19th, 2007 at 08:15 AM.

    2000 C5 Coupe, 6M, Callies/Mahle stroked LS7 (441), Blackwing, Halltech, LS3 intake, 90mm Shaner TB, ported L92 heads, FAST 50# inj, not too much cam, Kooks 1 7/8" headers , 3" catless mid pipes, Z TIs, track suspension, , 3:90 rear, EFI V2, LM-2, etc.
    PowrMax Performance

    100 mm PowrMAF

    LM-2 EFILIve package with TAQ -sLM2 V-2 serial cable> Package deals

  10. #10
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    Hey Bruce I would love to see a tune that would at least help me in the right direction, I am only new to EFI live not to tuning I did great with my old setup which was a 408 turbo in 2bar SD with HP tuners. I am just trying to get this setup proper and seems like a pain haha. But I do have a wide band and I am learning the auto tune and such that EFI live offer. Do you want me to send you a PM with my email??? I can do the adapting i have been looking at a few tunes but all nothing with a similar setup like mine.

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