Thread: NA vs SC PCM

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  1. #1 NA vs SC PCM 
    Solving problems BrandonHall10's Avatar
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    Quick question... Is there a difference in the PCM's from the NA or SC engines?

    I ask because I have a spare JY PCM from a '99 NA Grand Prix that I want to use as a donor for my "tuned" PCM in my '00 GTP.

    I want to keep my stock '00 PCM untouched, as a backup.
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  2. #2 Re: NA vs SC PCM 
    GTP Level Member 231FUN's Avatar
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    Nope, no difference except the bin thats written on it. Your 99 n/a pcm will work for what you have planned.
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  3. #3 Re: NA vs SC PCM 
    Solving problems BrandonHall10's Avatar
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    Ahh, yes! Money well spent then.

    Looking forward to jumping into the tuning game in the near future.

    Thanks!!
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  4. #4 Re: NA vs SC PCM 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    Physically they are the same but the programming in each are different like he said.

    So you can't just plug the 99 NA computer into the GTP car and make it run, you will have to write a GTP file into that NA computer.

    So depending on what tuning software you are using will make or break if you can overwrite it.

    I am pretty sure with HP Tuners you can't write a S/C file onto a NA computer, but maybe you can.

    SMGPFC Member #1
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  5. #5 Re: NA vs SC PCM 
    Solving problems BrandonHall10's Avatar
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    Not sure if my terminology is correct, bare with me. I was planning on taking the bin file from my stock gtp pcm and writing that to my spare pcm and using that as a starting point for tuning. Was also planning on using HP tuners.

    Maybe one of the tuning guru's can confirm this will work? Or not?
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  6. #6 Re: NA vs SC PCM 
    The Boss Iceman6669's Avatar
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    It can be done. Not super sure with HPT though.
    97 GTP Sold-prolly rusted away by now
    2011 F-150 Yote powered
    Too Hot to Handle, Too Cold to Hold
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  7. #7 Re: NA vs SC PCM 
    Moderator dsmuts's Avatar
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    if you unlock your stock to read the file you then have to unlock the other one to write it. So you have to use twice the credits.
    98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
    04 Comp G zzp stb's, UMI ta's, Speedbuilt sways, bully flo heads, XP, zzp headers, fsic, thrasher shift kit, 60#, 2.6" corsa 2.5", Inferno hood
    01 gt z7 turbo tep trans zzp motor
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  8. #8 Re: NA vs SC PCM 
    Solving problems BrandonHall10's Avatar
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    Quote Originally Posted by dsmuts View Post
    if you unlock your stock to read the file you then have to unlock the other one to write it. So you have to use twice the credits.
    I guess I didn't think about that. Seems like a bad plan. Or a costly on, at least.

    Maybe I'm getting ahead of myself, but ultimately I'm just wanting to use the na pcm as a core to tune for the gtp. Sounds like its doable in theory. Just might be an issues using HP tuners.
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  9. #9 Re: NA vs SC PCM 
    Solving problems BrandonHall10's Avatar
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    Just did a little reading, and it looks like we're basically after the same thing.

    http://www.grandprixforums.net/threa...oning-your-PCM
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  10. #10 Re: NA vs SC PCM 
    GXP Level Member darkhorizon's Avatar
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    You cant swap operating systems with HPT...

    Get a DHP and throw your HPT in the trash. I own one, use it often, and hate it with such a passion i cant put it into words.
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  11. #11 Re: NA vs SC PCM 
    Solving problems BrandonHall10's Avatar
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    I thought DHP was dead. (?)
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  12. #12 Re: NA vs SC PCM 
    GXP Level Member darkhorizon's Avatar
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    Quote Originally Posted by BrandonHall10 View Post
    I thought DHP was dead. (?)
    why? they are illegal to be sold used or something?s
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  13. #13 Re: NA vs SC PCM 
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    Quote Originally Posted by darkhorizon View Post
    why? they are illegal to be sold used or something?s
    I guess not. (?)

    My only experience with purchasing software is for cad/cam design, cnc programming type software. That stuff is not re-sellable. You even have to pay maintenance fees to get updates and support.

    All that just to say, I didn't know you could buy a "used" tuner.
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  14. #14 Re: NA vs SC PCM 
    GTX Level Member SnowTh1ef's Avatar
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    You can definitely buy a used tuner. You can also flash a SC bin file to an NA PCM. My 00 bonneville SLE thinks its an 01 SSEI as far as it knows. Was done with HPT.
    04 GTP -HAI, 1.9 rockers.
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  15. #15 Re: NA vs SC PCM 
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    Quote Originally Posted by SnowTh1ef View Post
    You can definitely buy a used tuner. You can also flash a SC bin file to an NA PCM. My 00 bonneville SLE thinks its an 01 SSEI as far as it knows. Was done with HPT.
    Good deal! That's exactly what I'm after. Maybe I shouldn't have said I wanted to "clone" my stock pcm. I just want to use the NA pcm, that I have on the shelf, as a core for tuning in the GTP. Leaving the original untouched. Looks like it shouldn't be to hard to find a stock bin file for it either, so I won't have to read it from my original pcm.

    Like I said, I'm not there yet, but I like to kind of know what to expect before I get there!

    Hoping to be able to split cost on tuner with a brother-in-law who has an '02 Regal GS.
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  16. #16 Re: NA vs SC PCM 
    Turbo is the way to go. BillBoost37's Avatar
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    Quote Originally Posted by darkhorizon View Post
    You cant swap operating systems with HPT...
    Christ Scott...learn what you are talking about.


    All he has to do is have both unlocked. Say he unlocked full year 99 and full year 00, this is no worries at all. Flash and smile... poof. If not, then the DHP would make it easier.
    I drink..so consider that when reading my posts.

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  17. #17 Re: NA vs SC PCM 
    GXP Level Member darkhorizon's Avatar
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    For less than $500*
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  18. #18 Re: NA vs SC PCM 
    Turbo is the way to go. BillBoost37's Avatar
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    True.. and yet I can't tune my 2000 truck with it also. Each has their positives and negatives.
    I drink..so consider that when reading my posts.

    2010 Audi A6 Dual IC's
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  19. #19 Re: NA vs SC PCM 
    GXP Level Member darkhorizon's Avatar
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    For $500 you could....
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  20. #20 Re: NA vs SC PCM 
    Bastard Reptile's Avatar
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    Quote Originally Posted by darkhorizon View Post
    Get a DHP and throw your HPT in the trash. I own one, use it often, and hate it with such a passion i cant put it into words.
    This sh*t drives me crazy. There's absolutely nothing wrong with having HPT. Just because you have a personal grudge against it doesn't mean you have to tell someone to abandon it at every chance you get. I also have both, and like both for my own reasons. That being said, the only thing that HPT does not do for me that I'd like is modifying the PS switch settings, other than that, it's a friendlier system than DHP all around.
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