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Search took 0.02 seconds. Search: Posts Made By: Qball
Forum: Pontiac - Street 01-17-2023, 04:39 PM
Replies: 28
Views: 1,892
Posted By promptcritical
That’s a beautiful car.

That’s a beautiful car.
Forum: Pontiac - Street 01-16-2023, 03:02 AM
Replies: 28
Views: 1,892
Posted By Charlie Brengun
Stock suspension they're fine. My car is lowered...

Stock suspension they're fine. My car is lowered (a lot, too much) and now they rub sometimes up front. Front 7 inch wide wheels, rears are 8..
Forum: THE LOBBY 10-08-2022, 09:16 AM
Replies: 8
Views: 1,381
Posted By mgarblik
Firestone has made huge improvements in the...

Firestone has made huge improvements in the quality of their tires since the Ford "Exploder" debacle. They had to. I have installed dozens of Firestones tires in the last 5 years and not a single...
Forum: Pontiac - Street 10-07-2021, 08:01 PM
Replies: 49
Views: 5,790
Posted By grandam1979
Qball, sorry about having your post go off topic...

Qball, sorry about having your post go off topic like that.
Forum: Pontiac - Street 10-07-2021, 06:22 PM
Replies: 49
Views: 5,790
Posted By grandam1979
Ok for the last time I personally have never ever...

Ok for the last time I personally have never ever had a 455 combo go faster shifting at 5200 over 5500-6000 from stock to a .700 lift roller. Again his personal track or dyno time will give the...
Forum: Pontiac - Street 10-07-2021, 12:35 AM
Replies: 49
Views: 5,790
Posted By Dragncar
That is exactly what he told me, we we friends...

That is exactly what he told me, we we friends and talked a lot over 20+ years.
Pontiac ports are puny. 455s have a ton of piston speed.
There is nothing you can do with a iron D port head. Port...
Forum: Pontiac - Street 10-07-2021, 12:29 AM
Replies: 49
Views: 5,790
Posted By Dragncar
Yes it does. If I can not get enough air into a...

Yes it does. If I can not get enough air into a far better flowing head with a much larger cam shifting at 5500RPM he does not have a snowballs chance in you know what getting his engine to truly...
Forum: Pontiac - Street 10-06-2021, 09:58 PM
Replies: 49
Views: 5,790
Posted By Joe's Garage
Listen to Tom S. He's got decades of experience with street Pontiacs.

^^^^^THIS^^^^^

Just set it at 5200 until you get to a dyno.

Undoubtedly your bottom end will handle more RPMs, but you will be more consistent and it will pull harder thru the gears...
Forum: Pontiac - Street 10-06-2021, 09:34 PM
Replies: 49
Views: 5,790
Posted By tom s
I have had enough street engines on the dyno with...

I have had enough street engines on the dyno with stock type dual plane intakes that I know our engines give up in the 5200 range to say that is a safe RPM until you get on the dyno.JMHO,Tom
Forum: Pontiac - Street 10-06-2021, 08:15 PM
Replies: 49
Views: 5,790
Posted By pastry_chef
Old 2007 thread on Speed-talk I made a PDF file...

Old 2007 thread on Speed-talk I made a PDF file from. Pleased to see we can still browse it.
https://www.speed-talk.com/forum/viewtopic.php?t=6211

Sun Apr 22, 2007 comment from Darin Morgan.
Forum: Pontiac - Street 10-06-2021, 04:32 PM
Replies: 49
Views: 5,790
Posted By grandam1979
The Dyno or track will tell the story until then...

The Dyno or track will tell the story until then it’s all speculation all combinations are different and respond differently. I personally have had a few engines built close to the op engine so I...
Forum: Pontiac - Street 10-06-2021, 01:24 PM
Replies: 49
Views: 5,790
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, 12:21 PM
Replies: 49
Views: 5,790
Posted By Stan Weiss
I know this is the street section. But just for...

I know this is the street section. But just for reference John Langer is up around 7000.

Graph shows 3.75" stroke at different RPM up to 5000.

Stan
Forum: Pontiac - Street 10-06-2021, 11:59 AM
Replies: 49
Views: 5,790
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, 11:21 AM
Replies: 49
Views: 5,790
Posted By Stan Weiss
Steve, While there are conditions where there...

Steve,
While there are conditions where there can be flame front problem. I did not find that article that good in describing what is happening. But no where does he have the flame front pushing or...
Forum: Pontiac - Street 10-06-2021, 09:09 AM
Replies: 49
Views: 5,790
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 10-06-2021, 12:41 AM
Replies: 49
Views: 5,790
Posted By Stan Weiss
I find it hard to believe someone as smart as Dan...

I find it hard to believe someone as smart as Dan would say something as foolish as that.

Stan
Forum: Pontiac - Street 10-06-2021, 12:33 AM
Replies: 49
Views: 5,790
Posted By Dragncar
Dan Whitmore. Have you been faster or quicker...

Dan Whitmore.
Have you been faster or quicker than me in the 1/4 mile with a Pontiac, iron heads and 9-1 CR ?
Let just say no and try and leave it at that.
Forum: Pontiac - Street 10-05-2021, 05:16 PM
Replies: 49
Views: 5,790
Posted By Stan Weiss
Where do you come up with this stuff? Stan

Where do you come up with this stuff?

Stan
Forum: Pontiac - Street 10-05-2021, 05:05 PM
Replies: 49
Views: 5,790
Posted By grandam1979
Nothing you just said has anything to do with his...

Nothing you just said has anything to do with his combination Again his combination is safe to 6000 or less.
Forum: Pontiac - Street 10-05-2021, 04:35 PM
Replies: 49
Views: 5,790
Posted By Dragncar
I run a .265-.271, .690 lift SR, fully ported 197...

I run a .265-.271, .690 lift SR, fully ported 197 HO heads, ported Warrior, 850, 2" headers, open ex.
Far more race oriented than the OPs street ride. many, many runs down the track to prove it. ...
Forum: Pontiac - Street 10-05-2021, 03:24 PM
Replies: 49
Views: 5,790
Posted By steve25
To the OP, keep firmly in mind that on the street...

To the OP, keep firmly in mind that on the street any motor will gain rpm the fastest and in turn accelerators the cars mass the fastest when it’s run in its torque band .

I am more then willing...
Forum: Pontiac - Street 10-05-2021, 02:36 PM
Replies: 49
Views: 5,790
Posted By ta man
I would put the chip redline chip at 5500 rpm. ...

I would put the chip redline chip at 5500 rpm.
Figuring out shiftpoints is the fun part..having a safe redline limit is more important. I ran stock rod 455's with zero issues for years..the biggest...
Forum: Pontiac - Street 10-05-2021, 12:48 PM
Replies: 49
Views: 5,790
Posted By TedRamAirII
I would start at 4500 and make runs. shift at 200...

I would start at 4500 and make runs. shift at 200 rpm increments, and log the runs.
Forum: Pontiac - Street 10-04-2021, 11:38 PM
Replies: 49
Views: 5,790
Posted By 77 TRASHCAN
For street fun, I’d shift at 5000. That engine is...

For street fun, I’d shift at 5000. That engine is making huge power at that RPM, even without knowing. There’s little need to twist a 455 much more. If you make some track passes, you could...
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