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Search took 0.01 seconds. Search: Posts Made By: 70GS455
Forum: 70-73 Firebird & TA TECH Yesterday, 09:59 PM
Replies: 12
Views: 846
Posted By 70GS455
Depending on whose circuitry is inside the tach,...

Depending on whose circuitry is inside the tach, an HEI will work, it's just the voltage stresses are higher and the circuit components need to be selected to handle it properly. An MSD box is a...
Forum: Pontiac - Street 04-16-2024, 05:21 PM
Replies: 55
Views: 3,494
Posted By 70GS455
1000+ cfm from a Qjet

Ran across this article from David Vizard's "How to Build Horsepower" Vol 2. They discuss modifications on a Quadrajet to get to 1090 CFM, as measured by a flow bench.
Forum: Exhaust TECH 03-22-2024, 09:55 PM
Replies: 8
Views: 1,434
Posted By 70GS455
There are 2 case sizes for the Dynomax Super...

There are 2 case sizes for the Dynomax Super turbos. The larger case (5.5 x 11") with 3" inlet and outlet do not neck down internally. The smaller case (4.25 x 9.75) do neck down for the 3". I...
Forum: Pontiac - Race 01-31-2024, 03:50 PM
Replies: 13
Views: 927
Posted By 70GS455
Looks more like an engine Dyno than a chassis...

Looks more like an engine Dyno than a chassis dyno

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Forum: Pontiac - Street 11-05-2023, 09:27 PM
Replies: 12
Views: 733
Posted By 70GS455
If that's a voodoo grind, I believe they check...

If that's a voodoo grind, I believe they check their advertised duration at some non-standard height. I seem to recall Harold saying something like it had to do with marketing

Sent from my...
Forum: Pontiac - Street 10-28-2023, 09:01 PM
Replies: 62
Views: 4,342
Posted By 70GS455
I would not recommend using that air cleaner...

I would not recommend using that air cleaner base. We did Dyno testing with one just like that on a QJ and it lost a surprising amount of power


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Forum: Pontiac - Street 09-06-2023, 12:44 PM
Replies: 80
Views: 4,344
Posted By 70GS455
With a large enough radiator, or one that is...

With a large enough radiator, or one that is super efficient and has an overabundance of cooling capacity, I beg to differ.

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Forum: Pontiac - Street 06-30-2023, 05:48 PM
Replies: 121
Views: 4,707
Posted By 70GS455
The "formula" is called "major intensity" ...

The "formula" is called "major intensity"

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Forum: Pontiac - Street 04-12-2023, 04:12 PM
Replies: 18
Views: 1,640
Posted By 70GS455
If you have a 210 deg thermostat then everything...

If you have a 210 deg thermostat then everything is fine. If you have a t stat rated at 160 then there is a cooling capacity issue

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Forum: Pontiac - Street 03-22-2023, 09:59 PM
Replies: 26
Views: 2,329
Posted By 70GS455
You know when you're at WOT the vac advance goes...

You know when you're at WOT the vac advance goes away, leaving you with just mechanical advance. So in that case, it's just like not having it

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Forum: Heating & Cooling TECH 12-13-2022, 06:31 PM
Replies: 24
Views: 2,706
Posted By 70GS455
Sounds like your thermostat is faulty, staying...

Sounds like your thermostat is faulty, staying partially open when it should be closed while the coolant is under the set point. Not a hard task to replace one but won't really cause any problems,...
Forum: Pontiac - Street 06-07-2022, 11:02 PM
Replies: 33
Views: 3,262
Posted By 70GS455
Low end nanners were not that wonderful. I have...

Low end nanners were not that wonderful. I have not driven it, only dyno time. But idle was the worst of 3 carbs, mid range was poor, and it wouldn't roll into the start of the test (3200 rpm) very...
Forum: Pontiac - Street 05-05-2022, 05:16 PM
Replies: 31
Views: 3,509
Posted By 70GS455
It's close enough it should be ok. Where it...

It's close enough it should be ok. Where it matters most is racing at the strip with slicks or drag radials. On the street, it should be fine.

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Forum: Pontiac - Street 05-04-2022, 04:02 PM
Replies: 31
Views: 3,509
Posted By 70GS455
If you decide on an aluminum flywheel, make sure...

If you decide on an aluminum flywheel, make sure you have at least 10:1 SLR (starting line ratio) which is rear gear times first gear ratio

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Forum: Pontiac - Street 03-28-2022, 05:06 PM
Replies: 27
Views: 2,984
Posted By 70GS455
I repair tachometers and calibrate gauges as a...

I repair tachometers and calibrate gauges as a side. IMO, the best senders I like to use are NAPA for oil pressure and Lectric Limited for water temp. There is a good informational page about senders...
Forum: Pontiac - Street 03-03-2022, 12:25 PM
Replies: 4
Views: 644
Posted By 70GS455
Get a large pot of water and heat it on the...

Get a large pot of water and heat it on the stove. Use either a 12v power supply or a battery to power the gauges. Hook up the sender to the gauge, ground both the sender and the gauge to the 12v...
Forum: Pontiac - Street 02-17-2022, 08:14 PM
Replies: 34
Views: 5,509
Posted By 70GS455
Same. Mine looks almost stock, which is the...

Same. Mine looks almost stock, which is the desired effect

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Forum: Pontiac - Street 02-08-2022, 12:04 AM
Replies: 37
Views: 4,799
Posted By 70GS455
I sent mine to Ken at Everyday Performance for a...

I sent mine to Ken at Everyday Performance for a level 2 build. Did 586 hp and 603 ft lbs on my engine. Only 9 hp less than a Holley 950 HP Ultra. Flawless startup, midrange and idle. It was also...
Forum: Heating & Cooling TECH 08-27-2021, 03:16 PM
Replies: 7
Views: 1,807
Posted By 70GS455
Correct on the wiring. The superheat im...

Correct on the wiring.

The superheat im talking about is the temperature rise across the evaporator, you adjust the TVX for flow to put it in the optimal range for conditions, and to prevent...
Forum: Heating & Cooling TECH 08-27-2021, 11:47 AM
Replies: 7
Views: 1,807
Posted By 70GS455
Our A6 compressor and specifically the clutch was...

Our A6 compressor and specifically the clutch was never designed to cycle like the modern compressors

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Forum: Interior TECH 08-24-2021, 11:57 AM
Replies: 30
Views: 5,638
Posted By 70GS455
While not the high bolsters like pictured, i...

While not the high bolsters like pictured, i wanted to use the stock seat covers but added extra side bolster springs. In the pics, the blue tape shows the springs I added, 4 to the upper frame and 4...
Forum: Pontiac - Street 08-13-2021, 11:31 AM
Replies: 36
Views: 6,976
Posted By 70GS455
I'm in the camp of the best timing will be what...

I'm in the camp of the best timing will be what the engine wants. We started off on the dyno with the "all in" by 2800 or whatever but quickly found out through testing that this was not optimal. We...
Forum: Heating & Cooling TECH 07-28-2021, 04:03 PM
Replies: 22
Views: 13,092
Posted By 70GS455
Actually it does hold up. At that cold of a day,...

Actually it does hold up. At that cold of a day, you have almost infinite cooling capacity. It should be NO different on a hot day if the cooling system is adequate or sufficient. Granted nothing is...
Forum: Heating & Cooling TECH 07-26-2021, 03:50 PM
Replies: 22
Views: 13,092
Posted By 70GS455
None of that really matters. The tstat rating is...

None of that really matters. The tstat rating is the set-point or regulation point. It is the system operating design point. It is the temperature at which the cooling system water is designed to...
Forum: Heating & Cooling TECH 06-04-2021, 12:03 PM
Replies: 6
Views: 1,203
Posted By 70GS455
Strip caulk is also used on the air box plenum in...

Strip caulk is also used on the air box plenum in the passenger kick panel.

Cork tape is used to seal the bulb to the pipe coming out of the front of the AC suitcase.

The cowl uses a...
Showing results 1 to 25 of 33
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