[wheelspin]

For those that are unaware, Mick (The Pontiac Garage) built many of the motors listed above, including sons Mike & Russ's 11 second TA & GTO (see signature below). He is one of the very best & most knowledgeable engine builders that I have experienced, regardless of brands. Congrats Mick on the best IEGTO dyno day to date .

[PAUL K]

Originally Posted by lust4speed

I raced the blue goat for years until I finished up the dedicated drag car. The flimsy Muncie and 10-bolt rear went back in the blue goat at that time so I try and behave myself in it. I broke my self imposed rule and took it to the strip last year and stripped out the cone clutches on the first pass, and didn't get a time. All the cars at the dyno session are street cars and all run on our goofy 91 octane CA gas. Tim with his 66 GTO ran 11.22 on first pass in Arizona and had to slow it down to keep from getting booted from Pontiac Heaven in 2016. It would have run faster on later passes but we had to take out a bunch of timing and he had to short shift at 4,500 to get it over 11.50's. Son Mark in his 65 2+2 ran a corrected 12.88 in a Pontiac Shootout article with a race weight of 4,480 and a smaller cam a few years ago. Bill B. with his 69 GTO runs 11.80's. Bruce R. with his 67 GTO runs 12.5's and Mark P. with his 67 GTO clone runs 12.6's.

Thanks

[slowbird]

Auto vs stick will make a difference in chassis dyno numbers. Id be interested to see what cars had manual trans

[Formulajones]

Originally Posted by lust4speed

This was the first time the club itself sponsored and paid for a dyno day. We go to shows, but many of us in the club would rather be drag racing than anything else. We do a pretty good job getting new members out to the track and getting their feet wet. We have members that belong to other Pontiac clubs, but are members with us also because we flog our cars like they were treated back in the day.

..

Sounds like my kind of club. Most of the Pontiac people around here in AZ want to hang out in lawn chairs, boring.

Not many clubs around here want to organize a dyno day either. About 10 years ago a (modern) Camaro club did that and I took my Camaro down to participate. Was a good time but no one has done anything like that since, and no classic car club I know of here would even think of such a thing LOL. Pretty sad. Looked like a ton of fun, thanks for posting.

[Lee]

Originally Posted by slowbird

Auto vs stick will make a difference in chassis dyno numbers. Id be interested to see what cars had manual trans

Yes! The only caveat is if you have a computer controlled tranny with a lock-up converter that can handle WOT - if you know how, you can program the tranny to lock the converter in 3rd and NOT downshift, and make dyno pulls just like with a manual tranny.

A stock or very low stall converter will perform close to a stick, but you have to worry about downshifting and there will be some slippage/torque multiplication. Once you get past about 3000 stall, you can get some interesting dyno results.

I once tested the same car with 3 different converters, each supposedly designed to stall around 3800-4000. Nothing changed other than the converter, yet the 3 graphs looked completely different.

You can really see the converter's characteristics when you plot the graph as HP vs. wheel speed, then view HP vs. RPM. The looser/less efficient the converter, the bigger difference you'll see in the two graphs of the same data.