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Posts Made By:
Stan Weiss
Forum:
Pontiac - Race
04-13-2024, 12:54 PM
Replies:
31
Darin Morgan PRI ICE presents Pontiac 570" 510cfm 1250hp engine
Views:
1,333
Posted By
Stan Weiss
Paul, I don't know what engine they are talking...
Paul,
I don't know what engine they are talking about in that video. I do know that 8 or more years ago John had post Torque 870 @ 7000 and HP 1290 @ 8300.
Stan
Forum:
Pontiac - Street
04-03-2024, 12:07 PM
Replies:
21
Opinions on 400 build: 4" crank 434 or 4.25" crank 461
Views:
957
Posted By
Stan Weiss
Thanks. I was just having a discussion with...
Thanks. I was just having a discussion with someone over on Yellow Bullet who only likes looking at uncorrected number .
Stan
Forum:
Pontiac - Street
04-03-2024, 01:01 AM
Replies:
17
Cylinder Offset Changes Everything
Views:
915
Posted By
Stan Weiss
Just so you know, Suzuki does not offset its...
Just so you know, Suzuki does not offset its cranks. Honda has a 4.5mm offset. KTM and Husqvarna use 5mm of offset. Kawasaki has 8.5mm of offset, and the Yamaha YZ450F offset is 12mm.
...
Forum:
Pontiac - Street
04-02-2024, 04:30 PM
Replies:
17
Cylinder Offset Changes Everything
Views:
915
Posted By
Stan Weiss
Cylinder Offset Changes Everything
This video does a great job of explaining what happens as a result of offset.
https://www.youtube.com/watch?v=gwtZkHoVMso
Stan
Forum:
Pontiac - Street
03-10-2024, 03:20 PM
Replies:
33
CAM CHOICE
Views:
1,103
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
02-18-2024, 08:50 AM
Replies:
47
Cam and rocker ratio info.
Views:
1,786
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, 12:29 PM
Replies:
47
Cam and rocker ratio info.
Views:
1,786
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
02-15-2024, 08:01 PM
Replies:
47
Cam and rocker ratio info.
Views:
1,786
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 - Street
02-05-2024, 10:53 AM
Replies:
46
Waking up a '75 TA 400 with a budget of 2k
Views:
2,793
Posted By
Stan Weiss
You might want to look at this thread. ...
You might want to look at this thread.
https://forums.maxperformanceinc.com/forums/showthread.php?t=855368
Stan
Forum:
Pontiac - Street
02-04-2024, 01:10 PM
Replies:
15
Lifter Resurfacing
Views:
870
Posted By
Stan Weiss
This might be an interesting read. Lifter...
This might be an interesting read.
Lifter face radius question
https://www.speed-talk.com/forum/viewtopic.php?t=46101
Stan
Forum:
Pontiac - Street
02-01-2024, 11:11 PM
Replies:
57
Flat Tappet Camshafts & More
Views:
3,102
Posted By
Stan Weiss
Frank, Remember seating velocity is not only a...
Frank,
Remember seating velocity is not only a function of cam / ramp design, but also RPM.
Stan
Forum:
Pontiac - Street
01-30-2024, 02:52 PM
Replies:
57
Flat Tappet Camshafts & More
Views:
3,102
Posted By
Stan Weiss
Flat Tappet Camshafts & More
Interesting Video
https://www.youtube.com/watch?v=NYtMCZYnF7I
Stan
Forum:
Pontiac - Street
01-28-2024, 06:00 PM
Replies:
158
Different cam? Chain? Car should be faster
Views:
7,461
Posted By
Stan Weiss
General Z is running a Holley 750. Stan
General Z is running a Holley 750.
Stan
Forum:
Pontiac - Race
01-28-2024, 11:29 AM
Replies:
25
Ram Air IV (041) cam world record ET list
Views:
2,892
Posted By
Stan Weiss
Sorry but I already have to many lists going. ...
Sorry but I already have to many lists going.
The Crower 60919 is a very close copy of the Pontiac RAIV / 041 cam. I believe Cliff R has run 11.4x with the Crower 60919.
Stan
Forum:
Pontiac - Street
01-26-2024, 11:18 AM
Replies:
158
Different cam? Chain? Car should be faster
Views:
7,461
Posted By
Stan Weiss
What I believe needs to be done Stan
What I believe needs to be done
Stan
Forum:
Pontiac - Street
01-25-2024, 11:37 AM
Replies:
158
Different cam? Chain? Car should be faster
Views:
7,461
Posted By
Stan Weiss
First the computer can only show you somethings,...
First the computer can only show you somethings, but you must really test for the best results.
Second while you hear engine torque is so important it is really torque at the rear wheels that...
Forum:
Pontiac - Street
01-24-2024, 08:49 PM
Replies:
158
Different cam? Chain? Car should be faster
Views:
7,461
Posted By
Stan Weiss
Post #68 If the valves are floating @ 5000...
Post #68
If the valves are floating @ 5000 RPM find out why and fix it!!
I am not saying a bigger cam will not make more HP than the Summit 2802, but as shown above the Summit 2802 should make...
Forum:
Pontiac - Street
01-23-2024, 02:06 PM
Replies:
19
Handy chart
Views:
1,299
Posted By
Stan Weiss
I believe this will be pretty close to the chart....
I believe this will be pretty close to the chart.
Peak HP RPM = 1000 * (cfm / cid) * 2
Stan
Forum:
Pontiac - Street
01-21-2024, 03:39 PM
Replies:
158
Different cam? Chain? Car should be faster
Views:
7,461
Posted By
Stan Weiss
Dennis, The OP has not been on PY in a couple...
Dennis,
The OP has not been on PY in a couple of days. So getting any answers from him will have to wait, as to what he used to come up with mid 14's. But for me that indicates that there are some...
Forum:
Pontiac - Street
01-19-2024, 11:52 PM
Replies:
158
Different cam? Chain? Car should be faster
Views:
7,461
Posted By
Stan Weiss
Was this ever done? Stan
Was this ever done?
Stan
Forum:
Pontiac - Street
01-05-2024, 11:40 AM
Replies:
3
Muncie m20 rebuild questions
Views:
427
Posted By
Stan Weiss
It would really help if you posted a picture of...
It would really help if you posted a picture of the gear showing the engagement lugs.
Stan
Forum:
Pontiac - Race
01-03-2024, 07:42 AM
Replies:
15
Speedmaster CNC vs. KRE 290cfm CNC D-ports?
Views:
1,301
Posted By
Stan Weiss
Steve, The SD Performance web site lists the...
Steve,
The SD Performance web site lists the 290-295 heads @ 197 cc.
https://www.sdperformance.com/listProducts.php?categoryID=49
Stan
Forum:
Pontiac - Street
12-23-2023, 02:08 AM
Replies:
83
11.4:1 455 need some help, i think
Views:
5,548
Posted By
Stan Weiss
What happened to the 91 octane in the 1st post? ...
What happened to the 91 octane in the 1st post?
So you have a 51-602-11 cam and 11.4:1 CR and cranking compression of 195 psi. At what ICL are you?
Stan
Forum:
Pontiac - Street
12-20-2023, 11:28 AM
Replies:
17
Cam help
Views:
1,495
Posted By
Stan Weiss
When using the same lobes. As you widen the LSA...
When using the same lobes. As you widen the LSA you will reduce overlap and will have less lopy idle.
Stan
Forum:
Pontiac - Street
12-15-2023, 12:16 PM
Replies:
104
Poll:
ATF for engine flush
Views:
7,209
Posted By
Stan Weiss
Back in the early '60 I worked in a gas station....
Back in the early '60 I worked in a gas station. You didn't have the cleaners you have today and the oil had nowhere near the additives it has today. Some of the things those old timers did would...
Showing results 1 to 25 of 352
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