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TPI Combo - Low Dyno Results

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Old Mar 25, 2018 | 03:28 PM
  #101  
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From: Bellflower, CA
Car: 89 Formula, 85 Trans AM & 91 Bird
Engine: 5.0 CARB, 5.7L TPI & 3.1L V6
Transmission: T-5/700R4/700R4
Axle/Gears: 9 Bolt & 10 Bolt X2
Re: TPI Combo - Low Dyno Results

Originally Posted by Orr89RocZ
You dont need 110 oct and i can see that making less
Power was so low we didn't proceed with the "110 Octane Track Chip".
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Old Mar 25, 2018 | 05:31 PM
  #102  
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Engine: 555 BBC Turbo
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Axle/Gears: MWC 9” 3.00
Re: TPI Combo - Low Dyno Results

Motor must be hurt or trans

Or sure all plugs are firing?
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Old Mar 26, 2018 | 12:22 PM
  #103  
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Car: 97 Z28
Engine: 396 LT1 518whp All Motor
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Axle/Gears: 4.10 LSD
Re: TPI Combo - Low Dyno Results

Luis
I believe that’s your name.....could you post a picture of the dyno sheet

-Sergio
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Old Mar 26, 2018 | 06:13 PM
  #104  
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Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
Re: TPI Combo - Low Dyno Results

Here is the last run...
Attached Thumbnails TPI Combo - Low Dyno Results-luis-dyno.jpeg  
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Old Mar 26, 2018 | 06:25 PM
  #105  
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Car: 97 Z28
Engine: 396 LT1 518whp All Motor
Transmission: 6spd
Axle/Gears: 4.10 LSD
Re: TPI Combo - Low Dyno Results

Wait......is that Sixseries dyno sheet? It lost power?
Who made 336hp361tq?
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Old Mar 26, 2018 | 07:32 PM
  #106  
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Car: 89 Iroc-z
Engine: 555 BBC Turbo
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Re: TPI Combo - Low Dyno Results

For one it looks lean but thats only gonna be worth a few ponies. Graph doesnt look all that smooth
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Old Mar 27, 2018 | 04:25 AM
  #107  
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Car: 1988 Firbird
Engine: 406
Transmission: T-56
Axle/Gears: 4.10
Re: TPI Combo - Low Dyno Results

It is very lean, it could be knocking and pulling timing which is power. Find out why it is so lean.
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Old Mar 27, 2018 | 10:47 AM
  #108  
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Car: '90 Trans Am-12.45@110.71
Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
Re: TPI Combo - Low Dyno Results

Originally Posted by Orr89RocZ
For one it looks lean but thats only gonna be worth a few ponies. Graph doesnt look all that smooth
There was no knock, the dyno was acting up causing erratic readings.
the run before was 13.2 AFR all the way across. Same HP a little more TQ.
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Old Mar 27, 2018 | 11:47 AM
  #109  
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Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: MWC 9” 3.00
Re: TPI Combo - Low Dyno Results

What was the uncorrected numbers from both runs ?
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Old Mar 27, 2018 | 04:13 PM
  #110  
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From: Orange, CA
Car: '90 Trans Am-12.45@110.71
Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
Re: TPI Combo - Low Dyno Results

Originally Posted by Orr89RocZ
What was the uncorrected numbers from both runs ?
Here is the previous run...
Attached Thumbnails TPI Combo - Low Dyno Results-luis-dyno1.jpeg  

Last edited by Dyno Don; Mar 27, 2018 at 04:22 PM.
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Old May 26, 2018 | 07:25 PM
  #111  
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Car: 89 Formula, 85 Trans AM & 91 Bird
Engine: 5.0 CARB, 5.7L TPI & 3.1L V6
Transmission: T-5/700R4/700R4
Axle/Gears: 9 Bolt & 10 Bolt X2
Re: TPI Combo - Low Dyno Results

Verified the timing this past Friday and somehow the timing was retarded by 6 Degrees

The timing was checked & set when we did the “Street Tune” the Saturday before the Dyno. Not sure what happened but it must not have been meant to be...

Updates to Follow
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Old Nov 18, 2019 | 02:25 PM
  #112  
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From: Bellflower, CA
Car: 89 Formula, 85 Trans AM & 91 Bird
Engine: 5.0 CARB, 5.7L TPI & 3.1L V6
Transmission: T-5/700R4/700R4
Axle/Gears: 9 Bolt & 10 Bolt X2
Re: TPI Combo - Low Dyno Results

Status Update:

Summer 2018 - Having Fun!


Irwindale Dragstrip 2018

I drove around with a disconnected Throttle Valve/Kickdown/Detent Cable and of course the Transmission went out... Foolishy tried to Dyno the vehicle in this state so I burned $80.00 at MD Automotive on August 4th 2018 Albeit, I eventually replaced the Throttle Valve/Kickdown/Detent Cable with a unit from O' Reilly's at $20.55 it was too late

Transmission Rebuild at Community Transmission in Bellflower

Estimated @ $1,400.00 with a rebuilt Torque Converter and Labor for removal & installation.

I've provided the following parts:


Vendor $$$ Cost Comparison

Dan @ Community Transmission recommended a Transmission Cooler & New Transmission Cooler Lines which aren't included in the estimate. He's also concerned with the Transmission Case being wrapped...

The Quest for 400ft LBS continues into 2020
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Old Dec 17, 2019 | 10:55 AM
  #113  
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From: Bellflower, CA
Car: 89 Formula, 85 Trans AM & 91 Bird
Engine: 5.0 CARB, 5.7L TPI & 3.1L V6
Transmission: T-5/700R4/700R4
Axle/Gears: 9 Bolt & 10 Bolt X2
Re: TPI Combo - Low Dyno Results

Community Transmission in Bellflower

Transmission Core Charge $250.00
Transmission Cooler & Lines $120.00
Transmission Banner Kit $125.00
Transmission Filter $12.00
Transmission Fluid (Synthetic) $69.00
High Stall (2500) Converter $295.00

Original Estimate of $1,400.00 Installed & Rebuilt

Community Transmission Grand Total: $1,950.00
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Old Dec 22, 2019 | 10:42 AM
  #114  
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Car: 1988 Pontiac Firebird Formula
Engine: 5.7 TPI
Transmission: 700R4
Re: TPI Combo - Low Dyno Results

What was the core charge for???
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Old Dec 23, 2019 | 08:09 AM
  #115  
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Car: 87 IROC
Engine: L31 350
Transmission: T56
Axle/Gears: 4.10 D44
Re: TPI Combo - Low Dyno Results

Originally Posted by ploegi
What was the core charge for???
Dan, the transmission guy, thought the trans case is/was warped, and not usable?
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Old Jan 2, 2020 | 10:01 AM
  #116  
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From: Bellflower, CA
Car: 89 Formula, 85 Trans AM & 91 Bird
Engine: 5.0 CARB, 5.7L TPI & 3.1L V6
Transmission: T-5/700R4/700R4
Axle/Gears: 9 Bolt & 10 Bolt X2
Re: TPI Combo - Low Dyno Results

Yeah, you know Dan? Based on the planetary gears he thought maybe NO Oil...
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Old Jan 17, 2020 | 10:32 AM
  #117  
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From: Bellflower, CA
Car: 89 Formula, 85 Trans AM & 91 Bird
Engine: 5.0 CARB, 5.7L TPI & 3.1L V6
Transmission: T-5/700R4/700R4
Axle/Gears: 9 Bolt & 10 Bolt X2
Re: TPI Combo - Low Dyno Results

AutoZone Mail Order on Feb. 26th 2014

Duralast NEW Mass Air Flow $150.99 - 20% + TAXES = $131.66

AutoZone #5462 on Dec. 09th 2019

Delphi NEW Mass Air Flow $149.99 + TAXES = $165.25

The Duralast Mass Air Flow was returned for $175.99 + TAXES = $192.71

The Delphi Mass Air Flow was "Price Matched" to RockAuto

Fuel Filter $15.32
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Old Feb 27, 2021 | 12:00 AM
  #118  
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From: Bellflower, CA
Car: 89 Formula, 85 Trans AM & 91 Bird
Engine: 5.0 CARB, 5.7L TPI & 3.1L V6
Transmission: T-5/700R4/700R4
Axle/Gears: 9 Bolt & 10 Bolt X2
Re: TPI Combo - Low Dyno Results

NO Activity in 2020

Addressing the Brakes to get back on the road for 2021

Front Brake Calipers & Bolts by Power Stop $70.99 + Tax + $30.00 Core Charge
Wheel Hub Dust Cap by Dorman $4.99 X2 + Tax
Front Rotors by Hawk Performance $87.60 with Tax
Front Brake Hose Bolt X2 $5.79 each + Tax
Front Brake Pads $0.00 (AutoZone)
Front Wheel Seals $4.38 with Tax
Front & Rear Brake Lines $93.99 + Tax
Front Tires $129.20 with Tax & Tire Recycling Fee
Front Tire Mounting & Balance @ Rolling Tires in Bellflower but I can’t recall how much $$ ?
Front Wheel Polishing @ JD Polishing in Downey $60.00

Last edited by SixSeriesCSi; Mar 19, 2025 at 11:27 PM.
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Old May 24, 2021 | 09:43 AM
  #119  
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From: Bellflower, CA
Car: 89 Formula, 85 Trans AM & 91 Bird
Engine: 5.0 CARB, 5.7L TPI & 3.1L V6
Transmission: T-5/700R4/700R4
Axle/Gears: 9 Bolt & 10 Bolt X2
Re: TPI Combo - Low Dyno Results

Sorting out the loose ends...

1/0 Gauge Battery Cables $151.31
1/0 Gauge Alternator Wire $27.42
3/4" Alternator Wire Heat Sheath $16.86
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Old Jul 12, 2021 | 03:36 PM
  #120  
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From: Bellflower, CA
Car: 89 Formula, 85 Trans AM & 91 Bird
Engine: 5.0 CARB, 5.7L TPI & 3.1L V6
Transmission: T-5/700R4/700R4
Axle/Gears: 9 Bolt & 10 Bolt X2
Re: TPI Combo - Low Dyno Results

Over the years I became somewhat spoiled having Dyno Don tend to my Firebirds. His retirement meant that I had to find a NEW Mechanic...

While not satisfied with the outcome of my "Diagnosis" it allowed me to pinpoint the problem; Mass Air Flow Sensor.

Mass Air Flow Sensor $0.00 (AutoZone)
Valve Cover Gaskets $31.89
Labor Charge $200.00

Back-up & Runnin'!!
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Old Sep 2, 2021 | 12:50 PM
  #121  
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From: Bellflower, CA
Car: 89 Formula, 85 Trans AM & 91 Bird
Engine: 5.0 CARB, 5.7L TPI & 3.1L V6
Transmission: T-5/700R4/700R4
Axle/Gears: 9 Bolt & 10 Bolt X2
Re: TPI Combo - Low Dyno Results

Caspers Electronics TPS Enhancer @ $116.84


102015 - TPS-TEC THROTTLE ENHANCER
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Old Sep 2, 2021 | 01:02 PM
  #122  
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From: Milwaukee
Car: 92 Firebird, 77 Trans Am SE, 86 Z28
Engine: 5.7 HSR, T/A 6.6, empty
Transmission: T-5, TH350, T-5
Axle/Gears: 3.08 posi, 3.23 posi, 3.23
Re: TPI Combo - Low Dyno Results

Didn't know it was a thing. Never had a "slow" throttle response from a tuned port
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Old Sep 6, 2021 | 01:21 PM
  #123  
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Car: 1990 Pontiac Trans Am
Engine: 355 TPI siamesed runners
Transmission: Tremec T56
Axle/Gears: 12-Bolt 3.73
Re: TPI Combo - Low Dyno Results

Its not a thing, it just makes the TPS voltage the computer sees higher, so the computer thinks the throttle is open more than it really is. Supposedly that would make the computer give more fuel and timing sooner, but if you add more fuel without the incoming air to support it, you'll just be rich.
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Old Sep 8, 2021 | 01:45 PM
  #124  
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From: Bellflower, CA
Car: 89 Formula, 85 Trans AM & 91 Bird
Engine: 5.0 CARB, 5.7L TPI & 3.1L V6
Transmission: T-5/700R4/700R4
Axle/Gears: 9 Bolt & 10 Bolt X2
Re: TPI Combo - Low Dyno Results

@Kevin91Z How have you been? Let's get together for a Data-Log Session soon. I'm still searching for those elusive 400ft-lbs of Torque from my Tuned Port Injection setup
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Old Oct 23, 2021 | 12:34 PM
  #125  
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From: Bellflower, CA
Car: 89 Formula, 85 Trans AM & 91 Bird
Engine: 5.0 CARB, 5.7L TPI & 3.1L V6
Transmission: T-5/700R4/700R4
Axle/Gears: 9 Bolt & 10 Bolt X2
Re: TPI Combo - Low Dyno Results

Excited about the weight reduction!

Harmonic Balancer @ $349.97
Harmonic Balancer Bolt @ $5.97


OE GM Vibration Damper

62260D - Fluidampr CT Gold Harmonic Damper
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Old Jul 5, 2024 | 01:12 PM
  #126  
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From: Bellflower, CA
Car: 89 Formula, 85 Trans AM & 91 Bird
Engine: 5.0 CARB, 5.7L TPI & 3.1L V6
Transmission: T-5/700R4/700R4
Axle/Gears: 9 Bolt & 10 Bolt X2
Re: TPI Combo - Low Dyno Results

Many Moons have passed and I bought another Firebird before I finished this project…

Oil Pan & Timing Cover Gaskets were replaced but one the bolts wasn’t tightened. Since some of the Bolts were missing some were replaced and some weren’t, so they're mismatched. The Oil Pan Rail Girdles weren’t installed because I didn't have them readily available when I sent the car out for service. All, in-all dissatisfied with the quality of the work performed…


Oil $38.14 & Filter $17.08

Drain Plug $
Labor $450.00

Last edited by SixSeriesCSi; Jan 18, 2026 at 03:09 PM. Reason: Grammer
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Old Mar 19, 2025 | 11:25 PM
  #127  
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From: Bellflower, CA
Car: 89 Formula, 85 Trans AM & 91 Bird
Engine: 5.0 CARB, 5.7L TPI & 3.1L V6
Transmission: T-5/700R4/700R4
Axle/Gears: 9 Bolt & 10 Bolt X2
Re: TPI Combo - Low Dyno Results

The ol' TuffStuff Alternator was rebuilt @ C1 Alternators in Compton, CA.

$100 Labor & Parts
$100 Labor & Parts

Last edited by SixSeriesCSi; Jan 18, 2026 at 03:09 PM. Reason: Grammer
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Old May 11, 2025 | 09:45 PM
  #128  
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From: Bellflower, CA
Car: 89 Formula, 85 Trans AM & 91 Bird
Engine: 5.0 CARB, 5.7L TPI & 3.1L V6
Transmission: T-5/700R4/700R4
Axle/Gears: 9 Bolt & 10 Bolt X2
Re: TPI Combo - Low Dyno Results

I had the Electric Water Pump Mounting Brackets sandblasted at Freddy’s Carburetor in Paramount, CA but it’s been so long I don’t remember what I paid…

Stainless Steel Socket Cap Screws $20.21
Stainless Steel Socket Cap Screws $20.21
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