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  1. #951
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    Shaun
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    1994 Formula
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    Quote Originally Posted by Catmaigne View Post
    I did two quick and dirty comparisons of my current Holley timing map (the base cal) vs. a NA Solomon tune I paid for and my own stock pcm 2bar SD mess with the rescaling undone. They look like this:

    Solomon:
    https://docs.google.com/spreadsheets...it?usp=sharing

    Mine:
    https://docs.google.com/spreadsheets...it?usp=sharing

    This is only in vacuum, no racecar stuff yet. Some thoughts...
    - Thing is reaaaaally down on timing with the stock LS cal. Probably why it feels like a slug off idle and with low throttle.
    - My 2bar SD tune ran out of resolution starting at 40kPa and below which is why all of the numbers are the same down there and the peak is around 50kpa.
    - My 2bar SD tune is considerably softer in vacuum than Solomon's as I've always thought his stuff was too aggressive. My IATs were never too far off of ambient in vac and the drag of a blower venting to atmosphere isn't a crazy amount. Don't think an NA tune would be worlds apart under atmospheric pressure.
    - I unfortunately have to assume that the indexing of the EFI 24x wheel is on the money with the Opti, which it probably isn't. There's probably a few degrees of fudge in there.

    Gonna dial it up a bit and see how it goes. I also need to play with the EOIT stuff, but we'll get there.
    i wouldnt compare a piece of moldy white bread to a solomon tune in any way shape or form. ask brandon strong about solomons toons, or @Sahara54 .

    I can send you some other peoples boosted tunes tomorrow if you want to compare more. creech did osies.

    Sent from my SM-N975U using Tapatalk
    2021 Charger Scat 392
    1994 Firebird Formula 381 stroker - Carrying the torch! - 9.90 @ 134.3mph on a 200 shot

    The wrench/driver for LTConvert's 94 Z28- Ellwein 383/LE Trickflows/ D1SC / CPT Ultra Pro Race 4L60E
    10.78 @ 125mph. Shooting for 9.99 for Frank Cahall!

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  3. #952
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    Quote Originally Posted by SSlowBoat View Post
    i wouldnt compare a piece of moldy white bread to a solomon tune in any way shape or form. ask brandon strong about solomons toons, or @Sahara54 .

    I can send you some other peoples boosted tunes tomorrow if you want to compare more. creech did osies.

    Sent from my SM-N975U using Tapatalk
    Yeh never been a fan either. Frustration with garbage mail orders is kinda why I started doing it myself. And I'd definitely take a look at some other people's tunes to compare. Shoot me a msg on fb when you get a chance.
    96Z M6, ERE-383 #60, AFR 210s, LE cam, 9", Procharger D1, ???whp
    95 Roadmaster T-56 swap, LE1s, baby cam, 4.56s, "The Cammaster"
    95 Firehawk hooptie, bolt-ons and suspension

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  5. #953

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    I can send you my holley tune if you want a 3bar turbo tune to look at.
    Correlation does not imply causation.

    Una salus victis nullam sperare salutem

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  7. #954
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    Quote Originally Posted by shownomercy View Post


    I can send you my holley tune if you want a 3bar turbo tune to look at.
    Yeah I'd definitely check it out.
    96Z M6, ERE-383 #60, AFR 210s, LE cam, 9", Procharger D1, ???whp
    95 Roadmaster T-56 swap, LE1s, baby cam, 4.56s, "The Cammaster"
    95 Firehawk hooptie, bolt-ons and suspension

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  9. #955
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    termitiming2.jpg

    I took it out for a drive a bit ago after ramping up the low end timing, feels a ton better. I think it wants a little more though.
    This system is the tits, I love it.

    Also, I did a thing:

    Screenshot_20220517-210910_Gallery.jpg
    96Z M6, ERE-383 #60, AFR 210s, LE cam, 9", Procharger D1, ???whp
    95 Roadmaster T-56 swap, LE1s, baby cam, 4.56s, "The Cammaster"
    95 Firehawk hooptie, bolt-ons and suspension

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  11. #956

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    Lemme know what email to send it too.

    Holley makes for super easy adjusting, I am really happy with mine.
    Correlation does not imply causation.

    Una salus victis nullam sperare salutem

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  13. #957
    LTX Master


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    Antique plate is cool. Wife already got one for her '94. My '97 is 25 this year so it's my time to get a antique plate. Benefits here are, no more license plate renewal fees (sticker) and no more annual inspection fees(sticker).
    Nolan
    '97 SS SLP,T56, Spec stage 2+ clutch,385 stroker,AFR210,XFI292,Moser 12 bolt eaton posi 4.10's. NO traction til top of 3rd gear.
    '57 Chevy 3100 p/u LT1/T56
    Wife's '94 Z28 has been sold.

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  15. #958
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    I made it to OC and back, but car was getting pissy later in the event and the plugs fouled. I swapped the ones I could reach from the top with junky Autolites which was enough to get me home. Catch can keeps filling up quickly so I think I'm gonna move the inlet from the valvecover back to the stock location in the lifter valley.

    I ordered more BR7ES plugs, but was wondering if a BR6ES would be better? Looking for better idle quality, but I am probably on the edge with 6 heat range, 11-12psi, 93 octane, etc.FB_IMG_1653304008750.jpg

    Sent from my SM-A526U1 using Tapatalk
    96Z M6, ERE-383 #60, AFR 210s, LE cam, 9", Procharger D1, ???whp
    95 Roadmaster T-56 swap, LE1s, baby cam, 4.56s, "The Cammaster"
    95 Firehawk hooptie, bolt-ons and suspension

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  17. #959

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    I ran 6s for a while on my last turbo hotside, but switched to 7s on the current setup. From the timing marks on dyno, I prob could have stayed with 6s or just dump more WOT timing in it.
    Correlation does not imply causation.

    Una salus victis nullam sperare salutem

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  19. #960
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    Getting around to working on this thing again. The ole stock T56 had been giving me problems (again), so I shipped a spare off to have built up. Just got it back today.

    342786026_1613476785792453_3729836146025655391_n.jpg

    343292185_532885685480665_8463086873876310214_n.jpg

    Count the splines... lol

    In addition to the trans, I have some other things to address:

    1. Tune tune tune - I need to get the EOIT right and dial in the fuel better. I also want to figure out how to get this damn knock sensor to register.
    2. Heat extraction - This Harwood has no vents and is sealed at the cowl. I'm going to cut into the hood at the cowl area and make little grilles so heat can escape.
    3. Heat wrap - I need to wrap up the heater core lines near the exhaust and rewrap the last header primary on the passenger side. The whole coil pack area gets super hot and I think I'm gonna burn something.
    4. Tachometer rewiring - I think the Holley is feeding the dash a 12v pulsed signal whereas it might need a 5v one, need to drop voltage.
    5. Speedometer - The chip I installed to turn the VSS signal from a sawtooth wave into a square never worked right so I need to do some probing, maybe replace it.
    6. Cowl drainage - I have water pouring onto my aux fuse panel when it rains. I need to make a little visor.
    7. Rear calipers hitting wheel weights on my drag wheels... ugh
    Last edited by Catmaigne; 04-30-2023 at 05:24 PM.
    96Z M6, ERE-383 #60, AFR 210s, LE cam, 9", Procharger D1, ???whp
    95 Roadmaster T-56 swap, LE1s, baby cam, 4.56s, "The Cammaster"
    95 Firehawk hooptie, bolt-ons and suspension

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