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Forum: Pontiac - Street 05-27-2005, 05:52 AM
Replies: 3
Views: 252
Posted By wk wood
My engine simulator estimates are: 369 HP @...

My engine simulator estimates are:

369 HP @ 4300 RPM
479 TQ @ 3500 RPM
Forum: Pontiac - Street 05-13-2005, 08:34 PM
Replies: 9
Views: 327
Posted By wk wood
Thanks for the input, right now my heads have new...

Thanks for the input, right now my heads have new H.O. Racing VS-11 springs. If I put on ported heads, I am sure I will use adaquate valvetrain parts. I am more worried how the bottom end will hold...
Forum: Pontiac - Street 05-12-2005, 08:00 PM
Replies: 20
Views: 409
Posted By wk wood
I threw your numbers in an engine computer...

I threw your numbers in an engine computer simulator and came up with 376 HP @ 4800 RPM and and 437ftlbs @ 3800 RPM, pretty close!

Changing cams specs to something like a Pontiac 068 cam (dur...
Forum: Pontiac - Street 05-12-2005, 07:40 PM
Replies: 9
Views: 327
Posted By wk wood
What do you think is the same RPM limit for my...

What do you think is the same RPM limit for my stock 400 short block?

I am using the original untouched 1973 shortblock that has about 60K miles on it. With the current mods, it generates...
Forum: Pontiac - Street 05-12-2005, 07:40 PM
Replies: 9
Views: 327
Posted By wk wood
What do you think is the same RPM limit for my...

What do you think is the same RPM limit for my stock 400 short block?

I am using the original untouched 1973 shortblock that has about 60K miles on it. With the current mods, it generates...
Forum: Pontiac - Street 10-28-2004, 10:41 PM
Replies: 24
Views: 871
Posted By wk wood
Phillip, I just did basically the same thing to a...

Phillip, I just did basically the same thing to a 1973 Grand Am, which is quite a bit heavier than your Trans Am. I left the bottom end alone (400 motor), but changed just about everything else. I...
Forum: Pontiac - Street 10-25-2004, 05:21 PM
Replies: 6
Views: 668
Posted By wk wood
I live in the San Bernardino Mountains (Southern...

I live in the San Bernardino Mountains (Southern California). The city of San Bernardino is about 14 miles away at an elevation of 1200 feet. All my tests were done in San Bernardino. It is a hell of...
Forum: Pontiac - Street 10-24-2004, 07:54 PM
Replies: 6
Views: 349
Posted By wk wood
Sheerhavoc....Check out my post "H.P. gain on low...

Sheerhavoc....Check out my post "H.P. gain on low compression 400". It is a mild combination, but would be inexpensive to duplicate and runs fine on low octane gas.
Forum: Pontiac - Street 10-24-2004, 06:19 PM
Replies: 6
Views: 668
Posted By wk wood
Last month I posted the topic "Cylinder...

Last month I posted the topic "Cylinder Pressures". Just thought I would update everyone on the end results of my modifications, as they ultimately turned out great!

Here is a rehash of what I did...
Forum: Pontiac - Street 10-24-2004, 06:19 PM
Replies: 6
Views: 668
Posted By wk wood
Last month I posted the topic "Cylinder...

Last month I posted the topic "Cylinder Pressures". Just thought I would update everyone on the end results of my modifications, as they ultimately turned out great!

Here is a rehash of what I did...
Forum: Pontiac - Street 10-03-2004, 04:45 PM
Replies: 3
Views: 313
Posted By wk wood
Yes...they are self locking/chevy style type nuts.

Yes...they are self locking/chevy style type nuts.
Forum: Pontiac - Street 10-03-2004, 12:48 PM
Replies: 3
Views: 313
Posted By wk wood
Does anyone know if I can safely re-use...

Does anyone know if I can safely re-use adjustable rocker arm nuts (Comp Cams crimp style)?

I was unhappy with how an XE262 cam performed in my low compression 400. I bought a custom grind from...
Forum: Pontiac - Street 10-03-2004, 12:48 PM
Replies: 3
Views: 313
Posted By wk wood
Does anyone know if I can safely re-use...

Does anyone know if I can safely re-use adjustable rocker arm nuts (Comp Cams crimp style)?

I was unhappy with how an XE262 cam performed in my low compression 400. I bought a custom grind from...
Forum: Pontiac - Street 09-20-2004, 03:44 PM
Replies: 7
Views: 492
Posted By wk wood
Does anyone know where one can buy stamped steel...

Does anyone know where one can buy stamped steel 1.65 rocker arms? I thought that Summit sold them, but I called and was told they don't have them.
Forum: Pontiac - Street 09-20-2004, 03:44 PM
Replies: 7
Views: 492
Posted By wk wood
Does anyone know where one can buy stamped steel...

Does anyone know where one can buy stamped steel 1.65 rocker arms? I thought that Summit sold them, but I called and was told they don't have them.
Forum: Pontiac - Street 09-15-2004, 06:34 AM
Replies: 19
Views: 667
Posted By wk wood
Thanks for the input gentleman....I am going to...

Thanks for the input gentleman....I am going to try a different compression gauge today (Snap ON). By the way I live at 6000 feet, I am sure that has some effect on the end results. Does anybody know...
Forum: Pontiac - Street 09-13-2004, 11:47 AM
Replies: 19
Views: 667
Posted By wk wood
Fake Goat.....what where your cylinder pressures...

Fake Goat.....what where your cylinder pressures after you installed the Summit 2801 cam? I don't want to jump the gun and yank the XE262 cam out just yet, but I was thinking about purchacing Summits...
Forum: Pontiac - Street 09-12-2004, 10:33 PM
Replies: 19
Views: 667
Posted By wk wood
UPDATE: Well today, I took the front timing cover...

UPDATE: Well today, I took the front timing cover off and the timing marks sure looked liked they lined up properly. I put a degree wheel on and checked to see how the cam was positioned. The intake...
Forum: Pontiac - Street 09-11-2004, 10:17 AM
Replies: 32
Views: 1,546
Posted By wk wood
I recently discovered this site and just found...

I recently discovered this site and just found this discussion. Just last week I had basically the same trouble with an HEI unit that I cleaned up, put some new parts in and put in my Grand Am. I...
Forum: Pontiac - Street 09-10-2004, 09:54 PM
Replies: 19
Views: 667
Posted By wk wood
Doug....thanks for the input. Using your figure...

Doug....thanks for the input. Using your figure of 10 PSI per 4 degrees, I could be losing between 21 and 43 PSI. Assuming that I retarded the cam 1 or 2 teeth.
Forum: Pontiac - Street 09-10-2004, 09:20 PM
Replies: 19
Views: 667
Posted By wk wood
Doug....are you talking about the timing marks on...

Doug....are you talking about the timing marks on the balancer/timing cover or the dots on the timing gears?

I figure that if I installed the timing gears 1 tooth off, that would be an 8.57...
Forum: Pontiac - Street 09-10-2004, 05:53 PM
Replies: 19
Views: 667
Posted By wk wood
I did not degree the camshaft (this could have...

I did not degree the camshaft (this could have been my mistake). The compression is 8.0 to 1, which is why I went with the that particular camshaft. When I performed the compression test, the engine...
Forum: Pontiac - Street 09-10-2004, 11:40 AM
Replies: 19
Views: 667
Posted By wk wood
I recently modified a 1973 400-4 motor with 60k...

I recently modified a 1973 400-4 motor with 60k original miles. After my modifications, the engine feels flat, especially off the line. It feels slighlty more powerfull around 4000 RPM and then falls...
Forum: Pontiac - Street 09-10-2004, 11:40 AM
Replies: 19
Views: 667
Posted By wk wood
I recently modified a 1973 400-4 motor with 60k...

I recently modified a 1973 400-4 motor with 60k original miles. After my modifications, the engine feels flat, especially off the line. It feels slighlty more powerfull around 4000 RPM and then falls...
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