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Forum: Pontiac - Street 10-14-2021, 11:23 AM
Replies: 61
Views: 1,669
Posted By Steve C.
It's never a dry start. There is always a...

It's never a dry start. There is always a permanent oil film on metal after the first minute of a motors life. IF you are hearing clicking and clacking on cold start (or maybe even rod bearing rattle...
Forum: Pontiac - Street 10-09-2021, 09:32 AM
Replies: 61
Views: 1,669
Posted By Steve C.
??? Headers: Solving An Oil Filter Clearance...

???

Headers: Solving An Oil Filter Clearance Problem

https://pontiacstreetperformance.com/psp/modoiladapter.html


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Forum: Pontiac - Street 10-06-2021, 01:24 PM
Replies: 49
Views: 1,337
Posted By Steve C.
I certainly agree his engine internals will allow...

I certainly agree his engine internals will allow operation up towards 6000 rpm. That is setting aside his unknown valvespring specs that could leave the potential of the combo nosing over at rpm. ...
Forum: Pontiac - Street 10-06-2021, 11:59 AM
Replies: 49
Views: 1,337
Posted By Steve C.
"Mean and maximum piston speeds are still...

"Mean and maximum piston speeds are still valuable calculations for any engine builder making a change to a proven formula. Exceeding 5,000 fpm in mean piston speed should get your attention and...
Forum: Pontiac - Street 10-06-2021, 09:09 AM
Replies: 49
Views: 1,337
Posted By Steve C.
The faster rate of piston speed will also result...

The faster rate of piston speed will also result in a piston that travels quicker during the combustion cycle with less dwell time during spark ignition. A very high piston speed can cause the piston...
Forum: Pontiac - Street 09-24-2021, 02:57 PM
Replies: 22
Views: 1,227
Posted By Steve C.
474ci engine running a set of 290cfm CNC ported...

474ci engine running a set of 290cfm CNC ported KRE D-port heads with a 236/245 duration hyd. roller cam.

SD Performance dyno testing with a stock iron intake running a Cliff's Q-jet. After some...
Forum: Pontiac - Street 09-18-2021, 09:03 PM
Replies: 9
Views: 328
Posted By Steve C.
The Pontiac Edelbrock cylinder head official ...

The Pontiac Edelbrock cylinder head official "runner volume wars" started with a post on the old Classical Pontiac board in May, 1998. From it the naysayers were off and running, like Paul Revere's...
Forum: Pontiac - Street 09-14-2021, 09:47 AM
Replies: 64
Views: 2,236
Posted By Steve C.
My 200-4R was built 14 years ago by a well known...

My 200-4R was built 14 years ago by a well known builder of transmissions for high-performance applications involving Buick GN racing. And as eluded to in the conversations here it was very...
Forum: Pontiac - Street 08-16-2021, 08:41 AM
Replies: 20
Views: 1,149
Posted By Steve C.
This posted on another site.... Speed Master...

This posted on another site....

Speed Master ,"a global company", is headquartered in Australia with some R&D and production facilities there but production of a lot of their products is...
Forum: Pontiac - Street 08-11-2021, 10:52 AM
Replies: 18
Views: 1,442
Posted By Steve C.
Synthetic lubricants generally last longer at...

Synthetic lubricants generally last longer at elevated temperatures than their mineral-oil counterparts.

Graph here:

https://www.machinerylubrication.com/Read/537/predict-oil-life



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Forum: Pontiac - Street 08-11-2021, 10:47 AM
Replies: 18
Views: 1,442
Posted By Steve C.
Another.... Heat-related lubricant failure ...

Another....

Heat-related lubricant failure
In the late 19th century, the Swedish Nobel Laureate Svante Arrhenius discovered a direct relationship between temperature change and the...
Forum: Pontiac - Street 07-21-2021, 03:53 PM
Replies: 28
Views: 1,412
Posted By Steve C.
In 2005 Ken at Pacific Performance Racing in...

In 2005 Ken at Pacific Performance Racing in conjunction with Professional Products introduced the Tomahawk intake manifold, which is essentially a modern interpretation of the original Holley Street...
Forum: Pontiac - Street 07-20-2021, 09:21 AM
Replies: 28
Views: 1,412
Posted By Steve C.
Consider a Tomahawk manifold that it the same...

Consider a Tomahawk manifold that it the same height as a factory intake. Injector pads cast in.
...
Forum: Pontiac - Street 07-13-2021, 02:59 PM
Replies: 64
Views: 3,677
Posted By Steve C.
From the OLD UltraDyne catalog regarding the...

From the OLD UltraDyne catalog regarding the 288/296 HFT ground with a 110 LSA.....

"Hot street/bracket cam. 3000 SS converter or 4-speed. No power brakes. Power 3000-6000"

As always regarding...
Forum: Pontiac - Street 06-28-2021, 08:54 AM
Replies: 64
Views: 3,677
Posted By Steve C.
"...our Pontiacs are intake challenged." ...

"...our Pontiacs are intake challenged."

Example. Rocky Rotella and Jim Hand have done flow bench testing on how much a intake manifold reduces the flow to the cylinder head. Jim reports that a...
Forum: Pontiac - Street 06-27-2021, 09:23 PM
Replies: 64
Views: 3,677
Posted By Steve C.
However, a rhetorical question.... what about the...

However, a rhetorical question.... what about the peak power rpm with that cam in a 350 CID combo. 6000 rpm :)
Forum: Pontiac - Street 06-27-2021, 09:02 PM
Replies: 64
Views: 3,677
Posted By Steve C.
The 6000 rpm number presumably came from the OPs...

The 6000 rpm number presumably came from the OPs first post, and probably reflects what Howard's states in a listing for the cam he was interested in which was 465/470, 223/235@.050, 110, 2-6k...
Forum: Pontiac - Street 06-27-2021, 02:48 PM
Replies: 64
Views: 3,677
Posted By Steve C.
No criticism intended here. Just a little common...

No criticism intended here. Just a little common sense knowing different dynos, different results. And that's not so bad, after all they are a tool and the information can still be relevant. Over...
Forum: Pontiac - Street 06-27-2021, 11:52 AM
Replies: 64
Views: 3,677
Posted By Steve C.
Googled up..... "Measuring dyno results...

Googled up.....

"Measuring dyno results from one facility to another is always going to be like measuring apples to oranges to some degree, regardless of the correction factor. Finding a reliable...
Forum: Pontiac - Street 06-26-2021, 03:28 PM
Replies: 64
Views: 3,677
Posted By Steve C.
I will also point out Tim Goolsby at Bullet...

I will also point out Tim Goolsby at Bullet Racing Cams has a very nice lobe to consider on the intake side, but it has a tad bit less .050 duration and less lobe lift than the Howard's lobe.
I...
Forum: Pontiac - Street 06-26-2021, 02:38 PM
Replies: 64
Views: 3,677
Posted By Steve C.
If you insist on using a cam from Howard's...

If you insist on using a cam from Howard's consider their H2333383 lobe on the intake side, it is a Harold Brookshire Design.

Seat 279
.020 257
.050 233
.200 147
0.3380 lobe lift

Have...
Forum: Pontiac - Street 06-18-2021, 11:49 AM
Replies: 50
Views: 3,304
Posted By Steve C.
A tid bit for conversation.... "On Harold...

A tid bit for conversation....

"On Harold Brookshire cams (Ultradyne, Lunati VooDoo, etc.] Harold always wanted them advanced at least 4°, but really preferred 6°. I've advanced his cams as much...
Forum: THE LOBBY 06-12-2021, 10:44 AM
Replies: 25
Views: 5,059
Posted By Steve C.
Postman’s stash of 20 classic Pontiac Trans Am's up for auction

A hoard of 20 classic Pontiac Trans Am sports cars stored in a couple of barns has been uncovered and is up for auction today, June 12.

...
Forum: Pontiac - Street 06-08-2021, 03:34 PM
Replies: 7
Views: 684
Posted By Steve C.
To add to the above post..... Do not be...

To add to the above post.....

Do not be overly concerned about pushrod weight. The pushrod is on the slow moving side of the valve train. The additional weight of a heavy wall pushrod usually...
Forum: Pontiac - Street 05-23-2021, 10:58 AM
Replies: 5
Views: 1,124
Posted By Steve C.
In 2018 the Crower 4.250" billet crank in my...

In 2018 the Crower 4.250" billet crank in my current 505 engine developed a crack. To replace it I bought a SCAT 4340 FORGED STEEL STANDARD WEIGHT CRANKSHAFT thru Paul Knippen. Good service and...
Showing results 1 to 25 of 108

 
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