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Search took 0.01 seconds. Search: Posts Made By: BGus16
Forum: Pontiac - Street 04-19-2021, 07:38 PM
Replies: 161
Views: 14,082
Posted By BGus16
Stan, i have done fuel pump mapping years ago....

Stan, i have done fuel pump mapping years ago. Manually entering data into excel. RPM, torque, flow in GPM's, temp rise, and delta pressures. Now we just hit a button and the data acquisition...
Forum: Pontiac - Street 04-17-2021, 11:27 AM
Replies: 161
Views: 14,082
Posted By BGus16
Been a while since i last did gear pump...

Been a while since i last did gear pump cavitation testing on aviation main engine fuel pumps. 7500 shaft HP unit for a GE helicopter engine.

But i can relate that we would needle valve the inlet...
Forum: Pontiac - Street 04-09-2020, 04:46 PM
Replies: 97
Views: 7,980
Posted By BGus16
I think Steve asked about Hp/Tq delta testing...

I think Steve asked about Hp/Tq delta testing between the 60 lb and the 80 lb spring.
May not be apples to apples but I have done lots of development testing on gear pumps for aviation turbine...
Forum: Pontiac - Race 09-04-2019, 10:23 AM
Replies: 13
Views: 1,692
Posted By BGus16
i build and test fuel controls for turbine...

i build and test fuel controls for turbine aircraft every day.
I work for Woodward, it is an old company that started making water wheel govenors 150 years ago. Going by memory here on some of the...
Forum: Pontiac - Street 04-18-2019, 04:55 PM
Replies: 58
Views: 2,895
Posted By BGus16
Hi Scott. I assume that is a flat tappet cam but...

Hi Scott. I assume that is a flat tappet cam but I don't recognize it.
Do you have a Crower part number ? Is it custom or a off the shelf cam do you know ?
I run the Crower Ram Air IV replacement...
Forum: Pontiac - Street 03-11-2019, 05:29 PM
Replies: 75
Views: 3,067
Posted By BGus16
Not sure if it was suggested or not but can you...

Not sure if it was suggested or not but can you put a vacuum gage on it and see what the reading is, and if the vacuum is steady ?

Barry
Forum: Pontiac - Street 12-02-2018, 11:36 AM
Replies: 14
Views: 986
Posted By BGus16
i was listening to radio call in financial show...

i was listening to radio call in financial show one saturday a while ago. a guy calls in for advice because he has racked up $ 40,000 on his credit card and wants advice to pay it off. The radio show...
Forum: Pontiac - Street 10-10-2018, 08:45 PM
Replies: 61
Views: 2,792
Posted By BGus16
We call them high pressure relief valves. Ours...

We call them high pressure relief valves. Ours are all a tapered needle and seat style not a ball type. Keep in mind that gear pumps are designed/sized for minimum flow requirements. That is to...
Forum: Pontiac - Street 10-10-2018, 06:47 PM
Replies: 61
Views: 2,792
Posted By BGus16
494812 494813 Had this happen to me...

494812

494813


Had this happen to me 10 years ago. I use Loctite on the pump relief ball cap now. Lucky I caught it in my garage when I started the car when it was cold. Actually heard the...
Forum: Pontiac - Street 09-06-2018, 07:38 PM
Replies: 20
Views: 2,405
Posted By BGus16
I agree, I was 13/14 years old when the movie...

I agree, I was 13/14 years old when the movie came out. I thought the Trans Am was the coolest car I had ever seen. Must have left a deep impression, as ten years later when I graduated college I...
Forum: Pontiac - Street 03-30-2018, 01:51 PM
Replies: 327
Views: 27,654
Posted By BGus16
Hi Scott70, yes I found one of my time slips from...

Hi Scott70, yes I found one of my time slips from a year ago.
Rear tires are old T/A radials 255/60/15 which I plan to replace soon.

R/T .117
60' 2.165
330 5.761
1/8 8.684
MPH 84.46...
Forum: Pontiac - Street 03-29-2018, 08:34 AM
Replies: 327
Views: 27,654
Posted By BGus16
I use the Crower 231/240 cam with Rhoads lifters...

I use the Crower 231/240 cam with Rhoads lifters and 1.65 rockers in my 462 with 6x-8 heads. the heads were milled .030" when I bought them from a member here years ago. I did smooth out the runners...
Forum: Pontiac - Street 05-10-2017, 05:32 PM
Replies: 20
Views: 856
Posted By BGus16
I installed a 3/4" phenolic spacer on my 78 T/A...

I installed a 3/4" phenolic spacer on my 78 T/A last year. It was an old spacer that I bought at a swap meet years ago for cheap. It was a for hole type that I opened it up to mimick the spacer that...
Forum: Pontiac - Street 05-08-2017, 07:41 PM
Replies: 60
Views: 3,062
Posted By BGus16
I have had the large brass screw that retains the...

I have had the large brass screw that retains the relief ball and spring fall out of a pump one time. Obviously lost all pressure suddenly also. Tried to prime the pump with a drill and tool and had...
Forum: Pontiac - Street 05-07-2017, 09:37 AM
Replies: 33
Views: 1,972
Posted By BGus16
Took my T/A once in the spring and noticed it...

Took my T/A once in the spring and noticed it would not pull past 5000 rpm no matter what and it used to with ease. First thought was valve springs, fuel pump, HEI problems, battery cutting out, and...
Forum: Pontiac - Street 10-03-2016, 08:44 PM
Replies: 38
Views: 1,841
Posted By BGus16
I have run my car/engine on a chassis dyno, but...

I have run my car/engine on a chassis dyno, but have been on one many times and have some 1/4 miles time slips to compare with it. When I replaced my Performer intake with a 1969 cast iron unit I...
Forum: Pontiac - Race 05-14-2016, 11:33 AM
Replies: 18
Views: 1,462
Posted By BGus16
if you were to use a lighter spring in the relief...

if you were to use a lighter spring in the relief valve ( say 47 psi ) that will cut down on the total flow of the pump. The output in GPM will be near liner with RPM until you reach the cracking...
Forum: Pontiac - Race 05-11-2016, 09:27 AM
Replies: 18
Views: 1,462
Posted By BGus16
Hi Todd, it looks like you are using a turbine...

Hi Todd, it looks like you are using a turbine meter in the oil line to measure the flow. How is it calibrated ? Is it temperature compensated or do you manually enter a specific gravity and K...
Forum: Pontiac - Street 03-03-2016, 11:14 PM
Replies: 75
Views: 10,052
Posted By BGus16
Yes Paul, I try to go to Byron a few times a...

Yes Paul, I try to go to Byron a few times a year. Usually early in the spring or late in the fall when it is not busy and they just have T & T. I wish there would be more Pontiacs there when I go...
Forum: Pontiac - Street 03-03-2016, 10:22 PM
Replies: 75
Views: 10,052
Posted By BGus16
Will, short answer is no. I bought those 6x8 off...

Will, short answer is no. I bought those 6x8 off of a guy locally for $500.00 Before I installed them I did buy an abrasive kit and cleaned up the ports. its the first time I have done it and tried...
Forum: Pontiac - Street 03-03-2016, 08:50 PM
Replies: 75
Views: 10,052
Posted By BGus16
I currently have this Crower cam in my 78 T/A in...

I currently have this Crower cam in my 78 T/A in a 462 with 6x8 heads that have been milled .030 I don't know the exact chamber volume but have used online calculators and come up with apprx....
Forum: Pontiac - Boost 01-27-2015, 10:28 PM
Replies: 19
Views: 451
Posted By BGus16
Its been a long time since I worked on a piston...

Its been a long time since I worked on a piston aircraft engine but I believe that that thrust bearings on those where huge ball bearing type on the front of the crank. The prop is pulling the crank...
Forum: Pontiac - Race 01-27-2015, 10:00 PM
Replies: 23
Views: 1,533
Posted By BGus16
A few years ago I was doing a lot of development...

A few years ago I was doing a lot of development gear pump testing on aircraft fuel pumps. We were working a pump that put out about 15 GPM up to 900 psi until relief. Gears were close to the size of...
Forum: Pontiac - Street 04-20-2014, 10:26 AM
Replies: 15
Views: 898
Posted By BGus16
The 800 double pumper was installed right out of...

The 800 double pumper was installed right out of the box from Summit. When we took the heads off you could see the cylinders were polished on the lower side. All 8 of them. The motor had maybe 300...
Forum: Pontiac - Street 04-19-2014, 12:12 PM
Replies: 15
Views: 898
Posted By BGus16
We had this problem on my brothers 455 also....

We had this problem on my brothers 455 also. Engine builder took one look and asked if it was a Holley carb. We were running a 800 cfm double pumper on the motor. Switched it out for a Q-jet.

Barry
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