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Search took 0.01 seconds. Search: Posts Made By: hgerhardt
Forum: THE LOBBY 02-29-2024, 01:13 PM
Replies: 2
Views: 222
Posted By hgerhardt
I replaced the hoses on my '66 GTO about 15 years...

I replaced the hoses on my '66 GTO about 15 years ago and I remember it was straightforward. The hoses I replaced were the factory worm-drive clamped ones, not the crimped ones.

First, make sure...
Forum: Heating & Cooling TECH 02-23-2024, 05:13 PM
Replies: 2
Views: 443
Posted By hgerhardt
Spring clamps are great. On my Sling A/C project,...

Spring clamps are great. On my Sling A/C project, I just went through this exercise. You measure the OD of the hose (in the relaxed state, not over a nipple), and get that size clamp. For 5/8" Gates...
Forum: 68-69 GTO Tempest & LeMans TECH 12-12-2023, 07:15 PM
Replies: 14
Views: 1,097
Posted By hgerhardt
The factory put a separate vent on those A-body...

The factory put a separate vent on those A-body tanks for a reason: the filler is so low that under hard acceleration, fuel will come out if the cap were vented. Firebird/Camaros get away with a...
Forum: Electrical Tech 12-10-2023, 03:34 PM
Replies: 12
Views: 4,180
Posted By hgerhardt
I'd blame the voltage regulator if you see this...

I'd blame the voltage regulator if you see this problem with both the headlights AND the instrument lighting at the same time.
Forum: Pontiac - Race 12-08-2023, 01:36 AM
Replies: 1
Views: 491
Posted By hgerhardt
You could also do a Tee with swivel at #2 and...

You could also do a Tee with swivel at #2 and then use an NPT-swivel adapter, but that would make the assembly longer. These are Parker part numbers. Also take note of how the ports are numbered on a...
Forum: 69-77 Grand Prix TECH 10-11-2023, 03:40 AM
Replies: 7
Views: 1,066
Posted By hgerhardt
I'd get a new, not rebuilt A6 compressor from...

I'd get a new, not rebuilt A6 compressor from Alma Products (they own the GM tooling for that compressor). These new A6's also have a lip seal instead of the original porcelain/steel one. And they...
Forum: 77-81 Firebird & Trans Am TECH 09-26-2023, 05:50 PM
Replies: 15
Views: 1,022
Posted By hgerhardt
And there's the problem. I said get a NEW one...

And there's the problem. I said get a NEW one from Alma Products, who own the original GM tooling. They are not cheap, however:...
Forum: 77-81 Firebird & Trans Am TECH 09-25-2023, 04:28 PM
Replies: 15
Views: 1,022
Posted By hgerhardt
Since the under-dash parts and evap are the most...

Since the under-dash parts and evap are the most complex sub-assembly of all, I'd use that and piece together the rest of the parts underhood.

To avoid the aftermarket, kludgy compressor/mount,...
Forum: Pontiac - Street 08-08-2023, 01:15 AM
Replies: 398
Views: 70,381
Posted By hgerhardt
Yup, I learned that in 2001 or so. I had 87cc...

Yup, I learned that in 2001 or so. I had 87cc E-heads on a 428 with a 248/254@ .050, 114 solid roller, and that setup ran best with 87 octane fuel, and slowed down with 91. From that experience, I...
Forum: Pontiac - Street 08-01-2023, 01:44 PM
Replies: 6
Views: 775
Posted By hgerhardt
Thanks for the public service announcement...

Thanks for the public service announcement reminding everyone with a Ram Air pan to ensure that there are a pair of 1/4" drain holes in the pan around the filter element.
Forum: THE LOBBY 07-24-2023, 06:09 PM
Replies: 90
Views: 5,224
Posted By hgerhardt
Speaking of flying things, would be really nice...

Speaking of flying things, would be really nice if your lot were big enough to build a 2500' runway which could double as a dragstrip...
...
Forum: EFI Tech 07-23-2023, 08:37 PM
Replies: 23
Views: 2,832
Posted By hgerhardt
Thanks! Yeah, I designed and fabricated it...

Thanks! Yeah, I designed and fabricated it myself. Drew it on AutoCAD and machined the reluctor on a 2-axis CNC Bridgeport. The sensor is a Cadillac Northstar crank trigger. I removed .100" from the...
Forum: Pontiac - Street 07-05-2023, 03:14 PM
Replies: 37
Views: 1,797
Posted By hgerhardt
x2 for that type of fuseholder. I did that for my...

x2 for that type of fuseholder. I did that for my '66 GTO about 30 years ago.
These fuseholders were used in GM cars from the '80's and are available as a GM-Packard replacement part:...
Forum: EFI Tech 06-20-2023, 10:43 PM
Replies: 23
Views: 2,832
Posted By hgerhardt
I did check it out...nice! One thing mine...

I did check it out...nice!

One thing mine does not do is look stock. However, it's good entertainment to stand 6' from the car at a show and watch the people do double-takes and try to figure out...
Forum: EFI Tech 06-20-2023, 07:01 PM
Replies: 23
Views: 2,832
Posted By hgerhardt
It's a great idea and many of us have already...

It's a great idea and many of us have already done it and reported about it here! I suggest you spend some quality time in the archives of this forum. I remember at least one guy adapted a GM ECU to...
Forum: THE LOBBY 06-01-2023, 12:13 PM
Replies: 24
Views: 2,052
Posted By hgerhardt
Situations like these are known as the "joys of...

Situations like these are known as the "joys of the golden years".
Forum: THE LOBBY 05-22-2023, 07:02 PM
Replies: 47
Views: 3,079
Posted By hgerhardt
I'd go further and say the Olds diesel reputation...

I'd go further and say the Olds diesel reputation ruined the ENTIRE US (car) diesel market for decades.
Forum: THE LOBBY 05-21-2023, 01:40 PM
Replies: 47
Views: 3,079
Posted By hgerhardt
American-made V8 engines are among the best...

American-made V8 engines are among the best engines from the Big Three; even today, they continue to use a cross-plane-crank setup, which is why they sound so different from their European...
Forum: Pontiac - Street 03-06-2023, 12:42 PM
Replies: 33
Views: 2,187
Posted By hgerhardt
Notice how much deeper your PS belt is in the...

Notice how much deeper your PS belt is in the grooves than the alternator belt? You need to get a wider belt for the PS so that the top of the belt is even with the pulley. I was fighting that same...
Forum: 66-67 GTO Tempest & LeMans TECH 03-06-2023, 12:26 PM
Replies: 34
Views: 2,817
Posted By hgerhardt
I've had a Griffin in my '66 GTO for about 12...

I've had a Griffin in my '66 GTO for about 12 years now. Painted the top tank black and to me looks stock. Looking at the backside, you can see the welding at the base of the tank, but not that...
Forum: Pontiac - Street 11-03-2022, 09:22 PM
Replies: 56
Views: 3,808
Posted By hgerhardt
The last B-body rotor that was 1.25" thick was...

The last B-body rotor that was 1.25" thick was the '76 and earlier. The '77-'96 B-body rotors were 1.10", both for the 11.5" and HD 12" dia. My '89 9C1 Caprice had the 12" x 1.1 rotors with a 5x5.0...
Forum: Pontiac - Street 10-13-2022, 10:43 AM
Replies: 157
Views: 15,458
Posted By hgerhardt
Well, it turns out that the TDS you found for T4...

Well, it turns out that the TDS you found for T4 15W-40 is an obsolete one. Link to the newest formulation:...
Forum: THE LOBBY 10-08-2022, 04:49 PM
Replies: 5
Views: 1,007
Posted By hgerhardt
That's for an early Dualjet (primary side only of...

That's for an early Dualjet (primary side only of a Qjet). The later Dualjets did away with the secondary side entirely.
Forum: 68-69 GTO Tempest & LeMans TECH 10-01-2022, 07:35 PM
Replies: 5
Views: 844
Posted By hgerhardt
My '66 GTO has a solid roller with Doug's round...

My '66 GTO has a solid roller with Doug's round port headers with 3" exhaust all the way back. I used Dynomax Super Turbo mufflers which were fine drone-wise, but too loud. I added resonators...
Forum: Pontiac - Street 08-30-2022, 01:33 AM
Replies: 20
Views: 1,666
Posted By hgerhardt
Back when Pontiac Drag Days was a thing, we had a...

Back when Pontiac Drag Days was a thing, we had a racer with a '67 GTO with I think a 421 with a Doug Nash 5-speed and a 4-pinion diff in the '67 rear end. His favored launch technique was to...
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