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  #221  
Old 08-02-2025, 07:00 PM
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73LeMans 73LeMans is offline
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I don't know why, but I laugh manically every time I see this blower on a traditional Pontiac. Anyone else?

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KRE Aluminum headed 463CID 73 LeMans. Used to run 10.6x @ 124.55. 3700lbs
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So much for 2020...shootin for 9s in 2021...and in 2022 apparently.....and 2023....and 2024.....and 2025.....who am I kidding? there will be no 9s with this engine!
>>My 73 Build thread
  #222  
Old 08-02-2025, 07:41 PM
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BILL BOWMAN1 BILL BOWMAN1 is offline
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Looks awesome! But I would probably start drinking again by the time I got that belt on!!

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  #223  
Old 08-04-2025, 02:19 AM
w72 w72 is offline
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Would the new accessory drive kit with AC fit in a 2nd gen Firebird? Any tests for shaker clearance yet? This looks so badass.

  #224  
Old 08-04-2025, 02:10 PM
darbikrash darbikrash is offline
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The numbers say yes is will fit, but I haven't actually tried it. We have someone nearby with a second gen TA that is interested. We offered to provide a mock up to test it out, and when this happens we will take measurements for the shaker hood placement. Likely we'll do a custom lid that allows for a shaker.

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1964 Catalina 2+2 4sp, 421 Tri-power
1965 GTO, Roadster Shop chassis, 461, Old Faithful cam, KRE heads 305 CFM,
Holley EFI, DIS ignition.
1969 GTO 467, Edelbrock 325 CFM, Terminator EFI
1969 Firebird Convertible
  #225  
Old 08-04-2025, 02:36 PM
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How well does the tensioner on the PS/Alt work there?

  #226  
Old 08-04-2025, 07:17 PM
darbikrash darbikrash is offline
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Quote:
Originally Posted by Scarebird View Post
How well does the tensioner on the PS/Alt work there?
Currently, the tensioner wheel gets a little too close to the balancer pulley. If the belt comes off, it will hit which is not ideal.

To prevent this, we are rotating the tensioner clockwise about 5 degrees, which should put the tensioner about 1/2 way in its counter clockwise travel and not hit the pulley, with or without belt.

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1964 Catalina 2+2 4sp, 421 Tri-power
1965 GTO, Roadster Shop chassis, 461, Old Faithful cam, KRE heads 305 CFM,
Holley EFI, DIS ignition.
1969 GTO 467, Edelbrock 325 CFM, Terminator EFI
1969 Firebird Convertible
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  #227  
Old 08-05-2025, 07:14 AM
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Quote:
Originally Posted by 73LeMans View Post
I don't know why, but I laugh manically every time I see this blower on a traditional Pontiac. Anyone else?
Me too I love this project so much. I am starting to save to get one for my T/A. Traditional Pontiac Power baby

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  #228  
Old 12-24-2025, 10:43 AM
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Darbikrash,

Any updates to share about the first initial blower motor install in the GTO or the 350 project?

Thanks

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Hot Rods & Horsepower.......A diease for which there is no cure.

71 GTO, 463, SD 295 d-port heads, 10.75:1, RPM intake, 502hp/560tq @ the crank, 200r4, 10" Continental convertor, Bullet 234/244 cam, Cliff's Q-Jet, 3:42's w/Eaton True Trac, 5 Power Tours. New performance numbers coming
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  #229  
Old 12-25-2025, 12:45 PM
darbikrash darbikrash is offline
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Lots of activity in the shop. The 350P blower motor is waiting for a dyno opening and then we'll have some numbers on a small displacement engine with good cylinder heads. This motor has the mechanical water pump version of the front drive, with all accessories (alt, P/S pump, etc.) mounted. While this is not typical for a dyno run, I do want to test the new serpentine belt drive I developed for the standard water pump.

The kits are selling, and I am producing production kit components with a good stock of all necessary castings in house. It's going to be an exciting new year for the supercharger project.

The initial test car ('69 GTO) is converting over to E85, it will be interesting to see how the numbers improve with this fuel.

For the Pontiac folks that prefer N/A, I have a new product coming on-line that is pretty neat, the engineering is complete and it goes on the 5 axis in a few weeks. I'll post details and pics when I get a little further along.

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1964 Catalina 2+2 4sp, 421 Tri-power
1965 GTO, Roadster Shop chassis, 461, Old Faithful cam, KRE heads 305 CFM,
Holley EFI, DIS ignition.
1969 GTO 467, Edelbrock 325 CFM, Terminator EFI
1969 Firebird Convertible
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  #230  
Old 12-27-2025, 12:02 PM
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71 Goatman 71 Goatman is offline
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Really appreciate the update.! I have a traditional Pontiac N/A combo in my car now. Excited when I heard about the supercharger . Cannot wait to see the numbers for the 350.

Considering I am currently N/A, I am really curious about your new product for the N/A folks.

BTW, great job on the serpentine system.

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71 Goatman

Hot Rods & Horsepower.......A diease for which there is no cure.

71 GTO, 463, SD 295 d-port heads, 10.75:1, RPM intake, 502hp/560tq @ the crank, 200r4, 10" Continental convertor, Bullet 234/244 cam, Cliff's Q-Jet, 3:42's w/Eaton True Trac, 5 Power Tours. New performance numbers coming
  #231  
Old 03-02-2026, 06:19 PM
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71 Goatman 71 Goatman is offline
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Hi Darbikrash,

Any progress updates or pics on the new N/A product you mentioned back in December?

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71 Goatman

Hot Rods & Horsepower.......A diease for which there is no cure.

71 GTO, 463, SD 295 d-port heads, 10.75:1, RPM intake, 502hp/560tq @ the crank, 200r4, 10" Continental convertor, Bullet 234/244 cam, Cliff's Q-Jet, 3:42's w/Eaton True Trac, 5 Power Tours. New performance numbers coming
  #232  
Old 06-06-2026, 09:12 AM
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71 Goatman 71 Goatman is offline
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Quote:
Originally Posted by darbikrash View Post
Lots of activity in the shop. The 350P blower motor is waiting for a dyno opening and then we'll have some numbers on a small displacement engine with good cylinder heads. This motor has the mechanical water pump version of the front drive, with all accessories (alt, P/S pump, etc.) mounted. While this is not typical for a dyno run, I do want to test the new serpentine belt drive I developed for the standard water pump.

The kits are selling, and I am producing production kit components with a good stock of all necessary castings in house. It's going to be an exciting new year for the supercharger project.

The initial test car ('69 GTO) is converting over to E85, it will be interesting to see how the numbers improve with this fuel.

For the Pontiac folks that prefer N/A, I have a new product coming on-line that is pretty neat, the engineering is complete and it goes on the 5 axis in a few weeks. I'll post details and pics when I get a little further along.
Any updates on the 350 supercharger project (dyno numbers) or the Pontiac NA product?

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71 Goatman

Hot Rods & Horsepower.......A diease for which there is no cure.

71 GTO, 463, SD 295 d-port heads, 10.75:1, RPM intake, 502hp/560tq @ the crank, 200r4, 10" Continental convertor, Bullet 234/244 cam, Cliff's Q-Jet, 3:42's w/Eaton True Trac, 5 Power Tours. New performance numbers coming
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  #233  
Old 06-07-2026, 11:27 AM
darbikrash darbikrash is offline
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The supercharger kit is selling nicely, one car now with A/C running E85. Still not had the 350 on the dyno, setting on the stand dyno headers mounted waiting to go to the dyno. The N/A manifold is finished, now taking pre-orders if anyone wants one. I will be machining the manifold casting patterns in-house and delivering to the foundry so they can pour the production parts. Butler has expressed interest and they have stated they will put it on their website.

The manifold was developed as a N/A intake for Pontiacs w/EFI, but as you can see the opportunities for turbo, Pro-charger and TorqStorm are certainly there if someone wants boost.


[/url]

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1964 Catalina 2+2 4sp, 421 Tri-power
1965 GTO, Roadster Shop chassis, 461, Old Faithful cam, KRE heads 305 CFM,
Holley EFI, DIS ignition.
1969 GTO 467, Edelbrock 325 CFM, Terminator EFI
1969 Firebird Convertible
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