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Thread: Transfer tune

  1. #21
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    Default Re: Transfer tune

    Do my O2 readings seem high? I'm trying to get this tune down but have persistent knock in the 5200/5600 rpm range 0.92


    https://www.dropbox.com/s/3n23m0kcos...29.44.png?dl=0
    https://www.dropbox.com/s/0i3tkm7pj2...24.22.png?dl=0
    https://www.dropbox.com/s/j4mmig47ho...19.02.png?dl=0
    2007 Grand Prix GT. Pacesetter headers, 1.8 roller rockers, CAI, HPTuned, 3.4pulley, TEP transmission, DIY ported heads, 90# springs, rollmaster single timing chain, fuel pump rewire, poly mounts/performance suspension, Impala front brakes drilled and slotted rotors.
    Past Grand Prix- 97 GT, 03 GT, 04 GT, 04 Comp G.

  2. #22
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    Default Re: Transfer tune

    how much kr and what the timing set at for that rpm wot?

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, 2.8, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW

  3. #23
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    Default Re: Transfer tune

    the knock was 4* at 5600 rpm and 0.92, at 5200 rpm 0.92 it was 2*. The timing was originally 18*. I subtracted the 4* and 2* I re-scanned and it was at another 2* of knock in the same cells. Do I keep subtracting until it is 0? Would I add timing to the cells that do not have knock or should I just leave them alone and be done with the adjustments? I thought .1000+ o2 readings were high but I'm not really sure.

    I greatly appreciate all of the help!!
    2007 Grand Prix GT. Pacesetter headers, 1.8 roller rockers, CAI, HPTuned, 3.4pulley, TEP transmission, DIY ported heads, 90# springs, rollmaster single timing chain, fuel pump rewire, poly mounts/performance suspension, Impala front brakes drilled and slotted rotors.
    Past Grand Prix- 97 GT, 03 GT, 04 GT, 04 Comp G.

  4. #24
    Killa Bee Scottydoggs's Avatar
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    Default Re: Transfer tune

    o2 should be reading in the low 900's when wot.

    if its moving all over the place like big swings your 02 sensor is bad and that will mess up the fueling and cause kr.

    best to have a wb to see your actual afr.

    for your set up stock maf file and maybe a little bit added at the top should be all you need.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, 2.8, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW

  5. #25
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    Default Re: Transfer tune

    Thanks, I will look into another o2. The o2 is a denso and is about 6 months old. But that doesn't mean it's good. I will just get it as close as I can and continue in the spring. By then hopefully I will be able to get a wide band.

    I'm poor and I have two trips I need to make to go to my son's Army basic training and AIT graduation. So needless to say the car will have to wait.
    2007 Grand Prix GT. Pacesetter headers, 1.8 roller rockers, CAI, HPTuned, 3.4pulley, TEP transmission, DIY ported heads, 90# springs, rollmaster single timing chain, fuel pump rewire, poly mounts/performance suspension, Impala front brakes drilled and slotted rotors.
    Past Grand Prix- 97 GT, 03 GT, 04 GT, 04 Comp G.

  6. #26
    Killa Bee Scottydoggs's Avatar
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    Default Re: Transfer tune

    i hear that, nothing i got came fast. waited for used deals came up, and if i was able to get things i did. sucked to watch stuff sell over and over, but what ya gonna do.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, 2.8, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW

  7. #27
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    Default Re: Transfer tune

    Anything outside of PE the o2 sensor is suppose to bounce all over the place. It suppose to bounce lean and rich of stoich which is 450-500mv.

    If the o2 at WOT is bouncing around and not a stead .900+mv, then you have a issue there.

    Per the screen shots it seems a little rich but hard to know for sure without a wideband. You could try to remove like 2% worth of fuel above 7,000hz in the MAF curve to see if the mv drop to like the mid .930's or so. Who knows it may be too rich and causing knock.

    SMGPFC Member #1

  8. #28
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    Default Re: Transfer tune

    Quote Originally Posted by Scottydoggs View Post
    i hear that, nothing i got came fast. waited for used deals came up, and if i was able to get things i did. sucked to watch stuff sell over and over, but what ya gonna do.
    Yeah it does suck but I will get it eventually. I guess good things come to those who wait, so I've heard. lol

    Quote Originally Posted by Fivefingerdeathpunch View Post
    Anything outside of PE the o2 sensor is suppose to bounce all over the place. It suppose to bounce lean and rich of stoich which is 450-500mv.

    If the o2 at WOT is bouncing around and not a stead .900+mv, then you have a issue there.

    Per the screen shots it seems a little rich but hard to know for sure without a wideband. You could try to remove like 2% worth of fuel above 7,000hz in the MAF curve to see if the mv drop to like the mid .930's or so. Who knows it may be too rich and causing knock.
    Yeah the o2 is all over the place from around 50-900mv + while driving and idling. To remove 2% I would multiply that section by .98 correct??

    Thanks guys!
    2007 Grand Prix GT. Pacesetter headers, 1.8 roller rockers, CAI, HPTuned, 3.4pulley, TEP transmission, DIY ported heads, 90# springs, rollmaster single timing chain, fuel pump rewire, poly mounts/performance suspension, Impala front brakes drilled and slotted rotors.
    Past Grand Prix- 97 GT, 03 GT, 04 GT, 04 Comp G.

  9. #29
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    Default Re: Transfer tune

    I was comparing my current tune with the stock and I have a question. I copied over the injector Flow rate, offset vs volts, and offset vs PW vs VAC. I also copied all the Power enrich, Primary VE vs. RPM vs. MAP among others from my 04 comp g overkill tune. I cant help but wonder if that is messing with the tuning process.
    2007 Grand Prix GT. Pacesetter headers, 1.8 roller rockers, CAI, HPTuned, 3.4pulley, TEP transmission, DIY ported heads, 90# springs, rollmaster single timing chain, fuel pump rewire, poly mounts/performance suspension, Impala front brakes drilled and slotted rotors.
    Past Grand Prix- 97 GT, 03 GT, 04 GT, 04 Comp G.

  10. #30
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    Default Re: Transfer tune

    did you have larger injectors? if you moved them over to the new car here now then you did the right thing. all that other stuff is the base tune. after all that you get to maf tune and play with timing.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, 2.8, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW

  11. #31
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    Default Re: Transfer tune

    They are New GM stock injectors. The same that was in the comp g. So the other stuff I listed was ok to transfer?
    2007 Grand Prix GT. Pacesetter headers, 1.8 roller rockers, CAI, HPTuned, 3.4pulley, TEP transmission, DIY ported heads, 90# springs, rollmaster single timing chain, fuel pump rewire, poly mounts/performance suspension, Impala front brakes drilled and slotted rotors.
    Past Grand Prix- 97 GT, 03 GT, 04 GT, 04 Comp G.

  12. #32
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    Default Re: Transfer tune

    sure is. its the tune really. dont forget the knock sensors, tm as well the speed limiter. thers some changes int he maf file too.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, 2.8, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW

  13. #33
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    Default Re: Transfer tune

    Is there a place I can find histograms that are already made for the current versions of HPT? Iím looking to plat for 02 sensor tuning but canít figure it out. I looked at the tuning guide but those are for the older version.
    2007 Grand Prix GT. Pacesetter headers, 1.8 roller rockers, CAI, HPTuned, 3.4pulley, TEP transmission, DIY ported heads, 90# springs, rollmaster single timing chain, fuel pump rewire, poly mounts/performance suspension, Impala front brakes drilled and slotted rotors.
    Past Grand Prix- 97 GT, 03 GT, 04 GT, 04 Comp G.

  14. #34
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    Default Re: Transfer tune

    There are already built in graphs you can use. It already plots the o2 sensor is many different ways.

    You can do rpm vs cylinder airmass or rpm vs map pressure. Even commanded AFR or commanded lambda against both cylinder airmass and or map pressure.

    Or just create one that suits your needs, it's not rocket science. Just pick the two pids you wish to log the o2 mv's with.

    SMGPFC Member #1

  15. #35
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    Default Re: Transfer tune

    Thanks 5FDP, I think my problem is trying to follow the guide that is set up for a much older version of HPT. I have o2 mv logging now. I put in a new o2 sensor so I just reverted back to stock Maf setting and starting my LTFT over again. My New denso failed within 6 months, slow response time. Luckily Stealthee was nice enough to include a few Bosch o2 sensors with the car. once I get that back in line I'll mess with the 7000 mhz up adjustments.
    2007 Grand Prix GT. Pacesetter headers, 1.8 roller rockers, CAI, HPTuned, 3.4pulley, TEP transmission, DIY ported heads, 90# springs, rollmaster single timing chain, fuel pump rewire, poly mounts/performance suspension, Impala front brakes drilled and slotted rotors.
    Past Grand Prix- 97 GT, 03 GT, 04 GT, 04 Comp G.

  16. #36
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    Default Re: Transfer tune

    Quote Originally Posted by Scottydoggs View Post
    sure is. its the tune really. dont forget the knock sensors, tm as well the speed limiter. thers some changes int he maf file too.
    How are the knock sensors tuned? I have not seen anything on that. Looking at my HPT file I see places like knock decay but it wont let me adjust those for some reason.
    2007 Grand Prix GT. Pacesetter headers, 1.8 roller rockers, CAI, HPTuned, 3.4pulley, TEP transmission, DIY ported heads, 90# springs, rollmaster single timing chain, fuel pump rewire, poly mounts/performance suspension, Impala front brakes drilled and slotted rotors.
    Past Grand Prix- 97 GT, 03 GT, 04 GT, 04 Comp G.

  17. #37
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    Default Transfer tune

    The knock sensor donít get tuned. They tell you how much knock you have because something else isnít right. If you have knock after getting your maf/wb tune down then take away timing in the spot you have knock.

    I think thereís a spot for how much timing is taken away when knock is present in the tune but I would leave that alone.

    No more GP 04 Impala SS Indy:
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  18. #38
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    Default Re: Transfer tune

    Quote Originally Posted by rickisrad View Post
    How are the knock sensors tuned? I have not seen anything on that. Looking at my HPT file I see places like knock decay but it wont let me adjust those for some reason.

    this is about all you need to do but this is dhp. no idea where this is in hpt.

    https://photos.app.goo.gl/J3blwCx82xWF6ckw2

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, 2.8, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW

  19. #39
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    Default Re: Transfer tune

    Quote Originally Posted by Scottydoggs View Post
    this is about all you need to do but this is dhp. no idea where this is in hpt.

    https://photos.app.goo.gl/J3blwCx82xWF6ckw2
    Those tables arent available in HPT. Just checked with a recent read using 3.6.26...
    1998 GTP Coupe: Self-tuned with HPTuners, 3.4, FWI w/ 12 inch K&N, Autolite 103's, hot-wired FP, Caspers fan override, 180 t-stat, Speed Daddy headers, SLP exhaust w/ GTX tips, 12 inch brakes (Riviera/Impala), 6000K HID's, solid rubber engine and trans mounts, poly dogbone inserts.

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