Home Menu

Menu


          
PY Online Forums - Bringing the Pontiac Hobby Together > Search Forums > Search Results
Showing results 1 to 10 of 10
Search took 0.00 seconds. Search: Posts Made By: Jim Robertson
Forum: 70-73 Firebird & TA TECH 08-30-2015, 11:32 PM
Replies: 3,110
Views: 175,122
Posted By Jim Robertson
We have built 2 numbers matching 72 HOs recently....

We have built 2 numbers matching 72 HOs recently. These were machined and prepared to OEM specs except for valve seat angles, hyd flat tappet cam timing (230/240) and 1.65:1 stamped rocker ratio....
Forum: 70-73 Firebird & TA TECH 12-07-2013, 10:02 PM
Replies: 3,110
Views: 175,122
Posted By Jim Robertson
Thanks Greg for posting about WD's dyno session....

Thanks Greg for posting about WD's dyno session. The best torque and HP was achieved with 40 BTDC ignition timing. All the pulls were performed at 600RPM/sec acceleration rate. Did you load the...
Forum: 70-73 Firebird & TA TECH 01-04-2013, 10:07 PM
Replies: 3,110
Views: 175,122
Posted By Jim Robertson
Eddie, We did not have to elongate the pushrod...

Eddie,
We did not have to elongate the pushrod openings. The reason is hard to put in words but...We decided on 1.65 rocker when we started the project. So we installed valves that are approx .200"...
Forum: 70-73 Firebird & TA TECH 01-03-2013, 10:31 PM
Replies: 3,110
Views: 175,122
Posted By Jim Robertson
Many thanks for the kind words. This one (as...

Many thanks for the kind words. This one (as well as each one of our builds) is treated very special. The guys here at the shop and the PY forum members challenge me to continue to strive for...
Forum: 70-73 Firebird & TA TECH 11-01-2012, 09:30 PM
Replies: 3,110
Views: 175,122
Posted By Jim Robertson
Thanks to 165th (Greg) for sending his numbers...

Thanks to 165th (Greg) for sending his numbers engine to us for a freshening. We are proceeding through the build and are planning to run many original parts. A few things that may apply to your...
Forum: 70-73 Firebird & TA TECH 11-01-2012, 09:29 PM
Replies: 3,110
Views: 175,122
Posted By Jim Robertson
Thanks to 165th (Greg) for sending his numbers...

Thanks to 165th (Greg) for sending his numbers engine to us for a freshening. We are proceeding through the build and are planning to run many original parts. A few things that may apply to your...
Forum: 70-73 Firebird & TA TECH 05-28-2008, 02:04 AM
Replies: 3,110
Views: 175,122
Posted By Jim Robertson
Mark and company, Thank you, Thank you, Thank...

Mark and company,
Thank you, Thank you, Thank you for the very informative post here...plus the magazine articles. Great info that did not come easy nor cheap.

From one enginehead to...
Forum: 70-73 Firebird & TA TECH 03-19-2008, 01:12 AM
Replies: 3,110
Views: 175,122
Posted By Jim Robertson
speedshopmike, You have PM.

speedshopmike,
You have PM.
Forum: 70-73 Firebird & TA TECH 11-20-2007, 01:02 AM
Replies: 3,110
Views: 175,122
Posted By Jim Robertson
Mark, Thanks for the detailed and informative...

Mark,
Thanks for the detailed and informative post. I would love to make one of your events. Can you post the dates/times of upcoming events?
Are you able to move the lobe separation around...
Forum: 70-73 Firebird & TA TECH 11-19-2007, 11:53 AM
Replies: 3,110
Views: 175,122
Posted By Jim Robertson
Mark, Thanks for posting the great info. Very...

Mark,
Thanks for posting the great info. Very informative read. If you can tell us...What is the exhaust system pipe size(s) front to rear on the 71 TA? Does it use a stock 2.125" exhaust...
Showing results 1 to 10 of 10

 
Forum Jump

All times are GMT -4. The time now is 08:07 PM.

 

About Us

The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.

 




Contact Us Home
Copyright © 2017