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  1. #51
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    Chris
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    @SSlowBoat did you install the driver mod?

    - Lots of factors as to why it didn't get into the 11s, but don't sweat it. Just get "two of the big ones" and send it!

    1994 Trans Am Under the knife - but it's alive!!! (5.3 LM7/CPT 60e/QP 9") BUILD THREAD
    2009 G8 GXP M6, full exhaust, catch can, cai, stereo
    1975 Olds 98 455 burnout machine/panty dropper | 1985 C10 new project

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  3. #52
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    Shaun
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    so pulled the nitrous jets just to see, since bill of second street asked too, and theres a .055 and a .053, roughly calculates to a 260hp shot. i may go down to a 200 for now, depending on what he says, and if he can tune it all na/nitrous on 1 tune

    I am ordering new plug wires and having the injectors checked again, i think one may still be sticky. then i am setting up when to drop the car off to second street to have the tune file updated to version 6.2 since the motec version i have says it has to be (wont let me log or open it, but i can see the pcm though, thanks again @harner )

    hopefully when all is said and done we are back to normal on motor and in the 10's on the sauce

    oh yeah, picked up some rear 15x10 streetlites, gotta get some new tires though, blew the hoosier qtp's off of them yesterday, sadly no vid

    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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  5. #53
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    Fred
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    The numbers I've quoted in the past were based on dyno results.

    As-built, the NA engine made 490 HP on the engine dyno (Sunoco 94 octane), and 425 HP on the chassis dyno. 13.27% loss thru the T56 w/ 3.73 gears

    Before running the N2O tune, they baselined the NA engine on C16. That bumped the NA engine dyno to 496 HP, attributed to the higher specific energy content of the C16 - more #/gallon. more BTU/#. That way they could see what the N2O added, and not include what the C16 added.

    With both stages of the original setup, it made 762.5 HP on the engine dyno, 672 on the chassis dyno. 11.87% loss thru the T56.

    That indicates the N2O was a 266 shot.

    After swapping in the TH400 and the 4.11 gears, we ran the chassis dyno again. The loss in the TH400 was huge.

    The N2O rwHP dropped to 593 HP, a 22.23% loss thru the TH400 w/ 4.11 gears

    Then they switched to the single, larger shot, using both the fan jet nozzles.

    rwHP increased to 620 HP. Using the same 22.23% loss, that indicated we were now at 797.2 HP at the flywheel, a gain of 34.7 HP.

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  7. #54
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    Quote Originally Posted by Injuneer View Post
    The numbers I've quoted in the past were based on dyno results.

    As-built, the NA engine made 490 HP on the engine dyno (Sunoco 94 octane), and 425 HP on the chassis dyno. 13.27% loss thru the T56 w/ 3.73 gears

    Before running the N2O tune, they baselined the NA engine on C16. That bumped the NA engine dyno to 496 HP, attributed to the higher specific energy content of the C16 - more #/gallon. more BTU/#. That way they could see what the N2O added, and not include what the C16 added.

    With both stages of the original setup, it made 762.5 HP on the engine dyno, 672 on the chassis dyno. 11.87% loss thru the T56.

    That indicates the N2O was a 266 shot.

    After swapping in the TH400 and the 4.11 gears, we ran the chassis dyno again. The loss in the TH400 was huge.

    The N2O rwHP dropped to 593 HP, a 22.23% loss thru the TH400 w/ 4.11 gears

    Then they switched to the single, larger shot, using both the fan jet nozzles.

    rwHP increased to 620 HP. Using the same 22.23% loss, that indicated we were now at 797.2 HP at the flywheel, a gain of 34.7 HP.
    thank you Fred, that helps alot to understand the process. i found a dyno sheet in the files of the car making 381whp N/A from some point in its history. was wondering what the 593hp sheet was too. bill is confident we can get her running right, just hoping it doesnt cost too much

    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!

  8. The Following User Says Thank You to SSlowBoat For This Post:


  9. #55
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    Even with clogged injectors only going 12.2 on a 1.71 60ft, she hits that tire hard. Love how it just stands up. @Injuneer the suspension looks and feels dialed in.

    I sent the injectors to Josh Hamming to have them cleaned. Hopefully he can clean them, because they do not make them anymore. Fingers crossed when they come back we can get some hits on it and find our missing time

    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!

  10. The Following 4 Users Say Thank You to SSlowBoat For This Post:


  11. #56
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    Lookin’ good. Miss it.

    Suspension by Steve Spohn….. all set up by Steve and his dad. They worked wonders with George Baxter's 30th, when the car was running low 8’s (not an LT1 at that point).

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  13. #57
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    Just got the plug wires changed tonight, few had some mouse damage that was buried and couldnt be seen.

    also picked up new/used rear rubber, got a deal on some ET Street SS radials in 275/50/15, these will go on the Street Lites so I dont have to change back wheels for this year atleast. When we get the juice working again we will go back to a 28", for now ill just use osies 28" racestars with et radial pro's if i need to.

    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!

  14. The Following 2 Users Say Thank You to SSlowBoat For This Post:


  15. #58
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    got the new shoes on

    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!

  16. The Following 3 Users Say Thank You to SSlowBoat For This Post:


  17. #59
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    I can smell some low 11 sec passes coming.
    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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  19. #60
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    Quote Originally Posted by JOATMON View Post
    I can smell some low 11 sec passes coming.
    Nolan
    Ill just be happy if it runs the same as it did when fred ran it on motor. 11.6-11.8 ill be content....for now

    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!

  20. The Following 2 Users Say Thank You to SSlowBoat For This Post:


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