Pontiac - Race The next Level

          
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  #21  
Old 12-09-2024, 10:58 AM
mgarblik mgarblik is offline
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That all makes sense. When the engine is finally ready to fire and make noise, there are plenty of people on here that would love to see and hear a video of that little beast running. Best of luck with it.

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  #22  
Old 12-10-2024, 09:47 AM
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Them U-joints will be fine, for the duration. If not then go back into it after awhile and upgrade em;

Particularly fine if them needles are replaced with brass or hard steel sleeves.
They wont flat-spot, Oil film or not. Load Reference: Rear Diff spider pins to spiders and case.

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  #23  
Old 12-10-2024, 09:07 PM
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I was thinking about those universals ... correct me if I'm wrong, but doesn't the typical U-joint, after the torque multiplication of the gearbox handle a lot more torque than the crankshaft as a whole?

I know the shock loading would be way different, but sure seems like a U-joint would handle the torque. Not something I would have ever even considered, out of the box for sure.

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  #24  
Old 12-11-2024, 12:06 AM
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"Shock" certainly seems like the greatest concern here. Maybe the magnitude of a "shock" is no greater than a driveline sees, but the number of shock events will be thousands (millions?) of times worse.

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... or has built a record breaking DOHC hemi four cylinder Pontiac?
... or has driven a couple laps of Nuerburgring with Tri-Power Pontiac power?(back in 1967)
... or has a Pontiac born the same year as Jim Wangers? (1926}
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Old 12-11-2024, 02:29 PM
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i've been to four county fairs and a decent number of *ss-kickin's - and I have never even thought of something like this. WELL DONE!!!!

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Old 01-17-2025, 02:29 PM
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These guys copied your idea Jack! Don’t think it’ll see 10,000RPM though . . . .😜

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  #27  
Old 01-18-2025, 12:55 AM
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My press would have a problem working with those u-joints!

Total Seal just (finally!) shipped my rings, so I can gap them and begin assembling the hemi-twin.

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... or has built a record breaking DOHC hemi four cylinder Pontiac?
... or has driven a couple laps of Nuerburgring with Tri-Power Pontiac power?(back in 1967)
... or has a Pontiac born the same year as Jim Wangers? (1926}
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Old 01-18-2025, 08:44 AM
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The nuts on those flanged tip the scales at over 55 lbs!

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  #29  
Old 01-25-2025, 01:52 AM
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Rings gapped (Total Seal, Gapless 2nd), pistons & rods installed. Torque to rotate is under 20 INCH pounds! [Lots of Torco assembly lube, and cylinder walls micro-honed to near-mirror finish; Smoky Yunick would approve!]
Head (with copper gasket and O-rings) and DOHC base plate installed and torqued.
Now upside down on stand, installing piston squirters and crank scrapers and windage screen.

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Anybody else on this planet campaign a M/T hemi Pontiac for eleven seasons?
... or has built a record breaking DOHC hemi four cylinder Pontiac?
... or has driven a couple laps of Nuerburgring with Tri-Power Pontiac power?(back in 1967)
... or has a Pontiac born the same year as Jim Wangers? (1926}
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  #30  
Old 01-25-2025, 06:28 AM
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Can you share some photos?

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Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs!
And he was not talking about 1/8 or 1/4 mile ETs!

1) 1940s 100% silver 4 cup tea server set.

Two dry rotted 14 x 10 Micky Thompson slicks.

1) un-mailed in gift coupon from a 1972 box of corn flakes.
Two pairs of brown leather flip flops, never seen more then 2 mph.

Education is what your left with once you forget things!
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  #31  
Old 01-25-2025, 09:58 AM
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Quote:
Originally Posted by steve25 View Post
Can you share some photos?
X2 on the photos! I have a folder with about 25 pics of your 4-cyl version and some pics of the car too. The folder is titled, "Jack Gifford wild DOHC Pontiac"

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  #32  
Old 01-29-2025, 01:38 AM
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The twin is coming together. Dial-indicating the two pistons shows them to be together at TDC within half a degree!
The blower manifold can't be in place when installing engine in the car. Which means that I need to decide whether to test run it before installation. I know I should, but the support systems (oil, fuel, coolant, gauges, etc.) are such a hassle.
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Anybody else on this planet campaign a M/T hemi Pontiac for eleven seasons?
... or has built a record breaking DOHC hemi four cylinder Pontiac?
... or has driven a couple laps of Nuerburgring with Tri-Power Pontiac power?(back in 1967)
... or has a Pontiac born the same year as Jim Wangers? (1926}
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  #33  
Old 01-29-2025, 05:49 AM
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Beautiful work that's to be proud of Jack!

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Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs!
And he was not talking about 1/8 or 1/4 mile ETs!

1) 1940s 100% silver 4 cup tea server set.

Two dry rotted 14 x 10 Micky Thompson slicks.

1) un-mailed in gift coupon from a 1972 box of corn flakes.
Two pairs of brown leather flip flops, never seen more then 2 mph.

Education is what your left with once you forget things!
  #34  
Old 01-31-2025, 12:27 AM
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Jack, simple AWSOME!

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  #35  
Old 02-02-2025, 01:57 AM
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It didn't take me long to decide to test-run it before installing it. I fixed a couple of coolant leaks yesterday, and then realized those fixes would have been almost impossible in the car!

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Anybody else on this planet campaign a M/T hemi Pontiac for eleven seasons?
... or has built a record breaking DOHC hemi four cylinder Pontiac?
... or has driven a couple laps of Nuerburgring with Tri-Power Pontiac power?(back in 1967)
... or has a Pontiac born the same year as Jim Wangers? (1926}
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  #36  
Old 02-02-2025, 07:37 AM
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Good thing you did that.
Time well spent!

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Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs!
And he was not talking about 1/8 or 1/4 mile ETs!

1) 1940s 100% silver 4 cup tea server set.

Two dry rotted 14 x 10 Micky Thompson slicks.

1) un-mailed in gift coupon from a 1972 box of corn flakes.
Two pairs of brown leather flip flops, never seen more then 2 mph.

Education is what your left with once you forget things!
  #37  
Old 02-02-2025, 10:15 AM
mgarblik mgarblik is offline
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Quote:
Originally Posted by Jack Gifford View Post
It didn't take me long to decide to test-run it before installing it. I fixed a couple of coolant leaks yesterday, and then realized those fixes would have been almost impossible in the car!
Were those leaks fixed during a run-in? Or just during inspection and fill? If it ran, how did it do?

  #38  
Old 02-03-2025, 02:03 AM
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The coolant leaks showed up by just applying small pressure to the block/head coolant passages.
Still some work to go to test run it- starting with reorganizing the clutter in the shop.

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Anybody else on this planet campaign a M/T hemi Pontiac for eleven seasons?
... or has built a record breaking DOHC hemi four cylinder Pontiac?
... or has driven a couple laps of Nuerburgring with Tri-Power Pontiac power?(back in 1967)
... or has a Pontiac born the same year as Jim Wangers? (1926}
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  #39  
Old 02-03-2025, 10:07 AM
mgarblik mgarblik is offline
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Quote:
Originally Posted by Jack Gifford View Post
The coolant leaks showed up by just applying small pressure to the block/head coolant passages.
Still some work to go to test run it- starting with reorganizing the clutter in the shop.
That makes sense. Also way much mess if there is a leak. Look forward to more updates.

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  #40  
Old 02-19-2025, 01:40 AM
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Getting closer to test-firing the hemi twin. What a rat's nest of plumbing and wiring to support it!
Only missing the blower belts which should arrive in a few days. However, I might wait until this bitter cold weather quits, since I'll need the overhead door open.
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Anybody else on this planet campaign a M/T hemi Pontiac for eleven seasons?
... or has built a record breaking DOHC hemi four cylinder Pontiac?
... or has driven a couple laps of Nuerburgring with Tri-Power Pontiac power?(back in 1967)
... or has a Pontiac born the same year as Jim Wangers? (1926}
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