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PY Online Forums - Bringing the Pontiac Hobby Together
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Posts Made By:
Tim Corcoran
Forum:
Pontiac - Street
04-25-2024, 12:06 PM
Replies:
20
Cams Video
Views:
838
Posted By
Tim Corcoran
Back in the day there weren't much available for...
Back in the day there weren't much available for Pontiac after market rods so Jim Butler, and probably others figured out if you turn the Pontiac rod journal down to 2.2 you could use a BBC rod, but...
Forum:
Pontiac - Street
04-25-2024, 06:00 AM
Replies:
20
Cams Video
Views:
838
Posted By
Tim Corcoran
I was thinking the same thing because the ratio...
I was thinking the same thing because the ratio between intake and exhaust flow on a Pontiac engine is not great even on a ported E-head with upgraded 1.77 exhaust valves, yet they still make pretty...
Forum:
Pontiac - Street
04-25-2024, 03:42 AM
Replies:
17
.005 or .010 shorter cam chain needed?
Views:
616
Posted By
Tim Corcoran
My last build the chain was very loose and I...
My last build the chain was very loose and I tried a Rollmaster -.010 short I couldn't even get it installed. I exchanged it for a -.005 set and it fit tight with almost no slop. Sometimes a test fit...
Forum:
Pontiac - Street
04-23-2024, 03:27 PM
Replies:
20
Cams Video
Views:
838
Posted By
Tim Corcoran
I noticed the same thing about Spring pressure...
I noticed the same thing about Spring pressure that info is not correct. Even so it is a good video with some good entry level info. His second video on the same subject is also very good and a...
Forum:
Pontiac - Street
04-22-2024, 11:09 PM
Replies:
20
Cams Video
Views:
838
Posted By
Tim Corcoran
Cams Video
This is an interesting video and there is a part two that is good also
https://youtu.be/JPAeepqrY-0
Forum:
Pontiac - Race
04-21-2024, 03:12 PM
Replies:
101
400 Stroker Build Documentary
Views:
9,611
Posted By
Tim Corcoran
The engine I built for my street car last year I...
The engine I built for my street car last year I used the BOP one piece rear main seal. I made the mistake of letting my machinist install it, thinking letting him do it was my best shot at getting a...
Forum:
Pontiac - Race
04-21-2024, 02:34 PM
Replies:
101
400 Stroker Build Documentary
Views:
9,611
Posted By
Tim Corcoran
At the machine shop bearing clearances were...
At the machine shop bearing clearances were verified .026-.027 on the rods and the mains are .029-.031 and that is right about what I wanted. Prior to installing the rear main seal I checked the...
Forum:
Pontiac - Race
04-21-2024, 01:51 PM
Replies:
101
400 Stroker Build Documentary
Views:
9,611
Posted By
Tim Corcoran
Drilling plug to lubricate distributor gear
Drilling plug to lubricate distributor gear
Forum:
Pontiac - Race
04-21-2024, 12:35 PM
Replies:
101
400 Stroker Build Documentary
Views:
9,611
Posted By
Tim Corcoran
I got the block back from the machine shop. I am...
I got the block back from the machine shop. I am sure many of you know how exciting that can be if you have been waiting a long time. After installing the cam bearings while at the machinist we...
Forum:
Pontiac - Street
04-19-2024, 10:34 PM
Replies:
50
1000+ cfm from a Qjet
Views:
3,019
Posted By
Tim Corcoran
The small filter at the entrance of a Q-Jet is a...
The small filter at the entrance of a Q-Jet is a restriction even with the paper filter. There just isn't enough surface area in that tiny filter. I never run a filter there I use an external...
Forum:
Pontiac - Street
04-18-2024, 08:14 PM
Replies:
5
Pennzoil 10x40 opinions?
Views:
451
Posted By
Tim Corcoran
Everyone has their favorite oil mine is Brad...
Everyone has their favorite oil mine is Brad Penn, now Penn Grade. Not sure why they changed the name
Forum:
Pontiac - Street
04-14-2024, 11:23 PM
Replies:
21
Scorpion Endurance Lifters
Views:
1,410
Posted By
Tim Corcoran
Cliff, what was the year when you found these...
Cliff, what was the year when you found these Scorpion rocker failures.
Forum:
Pontiac - Street
04-14-2024, 05:05 PM
Replies:
4
Pontiac V8 Lifter questions
Views:
424
Posted By
Tim Corcoran
The Butler lifters that Jay recommended are...
The Butler lifters that Jay recommended are Hy-Lift Johnson lifters and made in the USA they are a good lifter. If I were ever to go with flat tappet lifters again I would go with a solid cam and...
Forum:
Pontiac - Street
04-11-2024, 10:49 PM
Replies:
35
Holley Street Dominator Manifold?
Views:
1,590
Posted By
Tim Corcoran
Steve, it was Dave Bischop from SD Performance...
Steve, it was Dave Bischop from SD Performance that did the port work and provided the design for the foundry that was casting it. Dave was somewhat unhappy with the results he said it could of been...
Forum:
Pontiac - Street
04-11-2024, 10:42 PM
Replies:
30
Best vacuum advance distributor to trigger MSD box.
Views:
2,143
Posted By
Tim Corcoran
So it has a vacuum port on the distributor?
So it has a vacuum port on the distributor?
Forum:
Pontiac - Street
04-11-2024, 09:02 PM
Replies:
30
Best vacuum advance distributor to trigger MSD box.
Views:
2,143
Posted By
Tim Corcoran
I don't believe the Progression has a vacuum...
I don't believe the Progression has a vacuum advance. Not sure I would want to drive a street a car on the street without vacuum advance.
Forum:
Pontiac - Street
04-09-2024, 09:10 PM
Replies:
30
Best vacuum advance distributor to trigger MSD box.
Views:
2,143
Posted By
Tim Corcoran
I am using an OEM distributor with a Petronix...
I am using an OEM distributor with a Petronix conversion and an MSD 6AL. Works great for me and the price is right.
Forum:
Pontiac - Race
04-09-2024, 06:16 PM
Replies:
13
Anyone install baffles in factory gas tank?
Views:
654
Posted By
Tim Corcoran
Another option is a new tank with an in tank...
Another option is a new tank with an in tank electric fuel pump. No more problems with fuel delivery and the tank looks stock. Tanks Inc sells them and not as pricey as you might think.
Forum:
Pontiac - Race
04-09-2024, 01:40 PM
Replies:
19
PAC 1243 Valve Springs
Views:
574
Posted By
Tim Corcoran
OK here's the deal. I went back and checked every...
OK here's the deal. I went back and checked every single spring and at 1.85 (IH) I'm getting between 258-268 and at net lift from 608-618. I am very happy with these numbers, not sure why I came up...
Forum:
Pontiac - Street
04-07-2024, 01:22 PM
Replies:
21
Scorpion Endurance Lifters
Views:
1,410
Posted By
Tim Corcoran
I did a search and found some failures but that...
I did a search and found some failures but that was several years ago. As stated maybe they have improved the product and maybe they are more reliable now, or maybe I should just open up my wallet...
Forum:
Pontiac - Race
04-07-2024, 01:07 PM
Replies:
19
PAC 1243 Valve Springs
Views:
574
Posted By
Tim Corcoran
All the open pressures are pretty much in the...
All the open pressures are pretty much in the ball park. But the pressure on the seat varies from 220 to 268. If I shim up the springs that are low on the seat then the open pressure will be...
Forum:
Pontiac - Street
04-07-2024, 01:52 AM
Replies:
21
Scorpion Endurance Lifters
Views:
1,410
Posted By
Tim Corcoran
Sorry, I meant to say the Scorpion Endurance...
Sorry, I meant to say the Scorpion Endurance Rocker Arms, not lifters
Forum:
Pontiac - Race
04-07-2024, 01:50 AM
Replies:
51
Dyno Time
Views:
2,182
Posted By
Tim Corcoran
945 HP 790 TQ
945 HP 790 TQ
Forum:
Pontiac - Race
04-07-2024, 01:40 AM
Replies:
19
PAC 1243 Valve Springs
Views:
574
Posted By
Tim Corcoran
I bought them through a retailer and not sure if...
I bought them through a retailer and not sure if I should go through the retailer or go to PAC directly. I will call PAC on Monday and see what they say. I just don't want to go through the trouble...
Forum:
Pontiac - Race
04-06-2024, 04:30 PM
Replies:
19
PAC 1243 Valve Springs
Views:
574
Posted By
Tim Corcoran
Chuck First off Bullet Cams knowing Ultradyne...
Chuck
First off Bullet Cams knowing Ultradyne cams and having specific knowledge of my cam recommended the PAC 1243 springs installed at 1.85 with 1.65 rockers. Bullet also said .070 is the ideal...
Showing results 1 to 25 of 500
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