[Scott Roberts]

Originally Posted by russ467

How much bigger is the snout diameter on the crank to withstand that much force from the procharger?

I'm guessing the set up he has also acts as a crank support. If so, a Pontiac snout is fine.

[bad69bird]

Originally Posted by Tom Vaught

Thanks Brian, will look forward to it, as usual!

All of my previously Steve Morris dyno time was based on F-3 139 unit. Never really saw a 135 unit run. I also have heard that the new 136 had a lot of potential. Think that Procharger HAD to step up after Chris Alston jr ran quicker with a crank drive Vortech Supercharger in the Nova vs the F3-139 unit they previously used.

Hope to see the car/engine at Norwalk in August.

Tom Vaught

Tom that's the goal is to have the car at Norwalk.

Originally Posted by russ467

How much bigger is the snout diameter on the crank to withstand that much force from the procharger?

Russ I believe it is the standard pontiac snout. I know mine is. I replaced mine after 300 passes on it because upon inspection by Moldex (crank was in there to be cut and inspected) they discovered that there were a few stress fractures around both keys (it is dual keyed for the supercharger). They cut the snout off and replaced it with another one. When I spoke to Joe he said he thought it was from peddling the car and the stress it puts in that area. My understanding is that the pontiac snout actually isn't a bad snout to have (go figure for once its not a bad thing to have a pontiac. LOL) because the snout size is slightly smaller than a BBC but bigger than a SBC.

[bad69bird]

Originally Posted by Scott Roberts

I'm guessing the set up he has also acts as a crank support. If so, a Pontiac snout is fine.

Scott if I had to take a SWAG, I'd say it does too.