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Search: Posts Made By: Stan Weiss
Forum: Pontiac - Street 03-23-2024, 11:21 PM
Replies: 43
Views: 1,141
Posted By Stan Weiss
Steve, Thanks. I was just looking to see...

Steve,
Thanks.

I was just looking to see how close or far away it was from something I had simulated in Desktop Dyno.

Stan
Forum: Pontiac - Street 03-23-2024, 06:38 PM
Replies: 43
Views: 1,141
Posted By Stan Weiss
Very nice numbers. Anymore information like CR or...

Very nice numbers. Anymore information like CR or cam specs given?

Stan
Forum: Pontiac - Street 03-21-2024, 12:37 AM
Replies: 43
Views: 1,141
Posted By Stan Weiss
At what RPM did it make peak HP? Stan

At what RPM did it make peak HP?

Stan
Forum: Pontiac - Race 03-20-2024, 11:31 AM
Replies: 53
Views: 1,305
Posted By Stan Weiss
Since the first 60 foot can make or broke a run....

Since the first 60 foot can make or broke a run. What were your 60 foot times?

Stan
Forum: Pontiac - Race 03-17-2024, 11:59 AM
Replies: 53
Views: 1,305
Posted By Stan Weiss
Does that Holley system let you do data logging? ...

Does that Holley system let you do data logging?

Stan
Forum: Pontiac - Street 03-12-2024, 03:57 PM
Replies: 13
Views: 534
Posted By Stan Weiss
Is the engine able to be run? If so can you do a...

Is the engine able to be run? If so can you do a cranking compression test on it? Do you know what cam is in this engine?

Stan
Forum: Pontiac - Street 03-10-2024, 03:20 PM
Replies: 33
Views: 913
Posted By Stan Weiss
If you check, both Tremec and GM rate trans by...

If you check, both Tremec and GM rate trans by torque capacity. A 750 HP SBC will not be making as much torque as your 600 HP Pontiac.

Stan
Forum: Pontiac - Street 03-10-2024, 02:50 PM
Replies: 33
Views: 913
Posted By Stan Weiss
What is your CR going to be? Stan

What is your CR going to be?

Stan
Forum: Pontiac - Race 02-29-2024, 02:08 PM
Replies: 25
Views: 969
Posted By Stan Weiss
580 HP @ 5600 is 544 torque. Was torque still...

580 HP @ 5600 is 544 torque. Was torque still raises when you stopped the pull?

Stan
Forum: Pontiac - Race 02-29-2024, 01:40 PM
Replies: 25
Views: 969
Posted By Stan Weiss
I don't know if that is a typeo or not. But @...

I don't know if that is a typeo or not. But @ 5250 580 HP is 580 torque.

Do you have a dyno sheet you can post?

Stan
Forum: Pontiac - Street 02-24-2024, 02:08 PM
Replies: 19
Views: 806
Posted By Stan Weiss
Does all 4 pair of ports look like this? If...

Does all 4 pair of ports look like this?

If so do all of the larger ports match up to the same manifold "H"?

Stan
Forum: Pontiac - Street 02-22-2024, 12:14 PM
Replies: 21
Views: 1,094
Posted By Stan Weiss
Skip, No, dimples but a bur finish in places...

Skip,
No, dimples but a bur finish in places does seem to work.

Stan
Forum: Pontiac - Street 02-22-2024, 10:19 AM
Replies: 21
Views: 1,094
Posted By Stan Weiss
Looking at Dr Blair's work. What you are looking...

Looking at Dr Blair's work. What you are looking for is squish velocity. Squish velocity is not only a function of piston to head clearance but also squish ratio (amount of quench area to bore area)....
Forum: Pontiac - Street 02-22-2024, 10:11 AM
Replies: 21
Views: 1,094
Posted By Stan Weiss
Good morning Paul, When developing a new port. Do...

Good morning Paul, When developing a new port. Do you look at the swirl curve and use that as part of of the processes?

Stan
Forum: Pontiac - Street 02-19-2024, 11:18 AM
Replies: 16
Views: 602
Posted By Stan Weiss
Paul, Thanks. I was thinking with the big...

Paul,
Thanks. I was thinking with the big difference in mid lift flow looking at the velocities at those lifts might give an idea of how / where the good valve had improved flow.

Stan
Forum: Pontiac - Street 02-19-2024, 10:23 AM
Replies: 16
Views: 602
Posted By Stan Weiss
Hi Paul, Did you do any pitot probing with the...

Hi Paul,
Did you do any pitot probing with the 2 sets of valves?

Stan
Forum: Pontiac - Street 02-18-2024, 05:39 PM
Replies: 16
Views: 602
Posted By Stan Weiss
Paul, The actual flow area (curtain area) is...

Paul,
The actual flow area (curtain area) is smaller for the same valve size and seat angle with a wider seat at any given lift. If you have the time could you near the 0.085" down to 0.060" and see...
Forum: Pontiac - Street 02-18-2024, 08:50 AM
Replies: 47
Views: 1,529
Posted By Stan Weiss
While changing rocker arm ratio and valve lash...

While changing rocker arm ratio and valve lash help you dial in a camshaft that is not optimum, they do it differently. The green line is with the 1.65:1 rocker arm ratio and 0.021" lash the cam was...
Forum: Pontiac - Street 02-16-2024, 03:15 PM
Replies: 47
Views: 1,529
Posted By Stan Weiss
Gach, I have actually posted cam data which...

Gach,
I have actually posted cam data which shows exactly what happens when a rocker arm ratio change is made.

I have actually posted cam data which shows exactly what happens when a lash change...
Forum: Pontiac - Street 02-16-2024, 01:46 PM
Replies: 47
Views: 1,529
Posted By Stan Weiss
I have over 20 Super Flow "SFD" files from dyno...

I have over 20 Super Flow "SFD" files from dyno tests Brian has done on a number of different engines. I have 2 dyno sheets you posted. One was pull down right after I PMed you about what was wrong...
Forum: Pontiac - Street 02-16-2024, 12:29 PM
Replies: 47
Views: 1,529
Posted By Stan Weiss
Jay, This is the cam I posted above with the...

Jay,
This is the cam I posted above with the 0.021" lash it calls for and also 0.017"

_______I__N__T__A__K__E
Rocker_Arm_Ratio_=_1.650_________Valve_Lash_=_0.02100________Valve_Angle_=_20.0
...
Forum: Pontiac - Street 02-16-2024, 11:22 AM
Replies: 47
Views: 1,529
Posted By Stan Weiss
Steve, If they are lift numbers then there...

Steve,
If they are lift numbers then there would be a number of Comp lobe that fit each, also most people would have said .447/.436

Stan
Forum: Pontiac - Street 02-16-2024, 09:56 AM
Replies: 47
Views: 1,529
Posted By Stan Weiss
Does anyone have a link to a comp cams master...

Does anyone have a link to a comp cams master lobe list which has these lobes? The latest one I have doesn't have these lobe numbers.

Stan
Forum: Pontiac - Street 02-15-2024, 08:01 PM
Replies: 47
Views: 1,529
Posted By Stan Weiss
This is a comp cams solid roller cam for a SBF...

This is a comp cams solid roller cam for a SBF that I have a Cam Dr file for. It is 267.84 @ 0.050" lifter raise.

It was designed to use 1.65:1 rocker arms and I also show it with 1.8:1 rocker...
Forum: Pontiac - Race 02-13-2024, 12:01 PM
Replies: 36
Views: 1,542
Posted By Stan Weiss
Do you have dyno sheets from both engines? ...

Do you have dyno sheets from both engines?

Stan
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