A little head's up to all who have enjoyed Dave Vizard's advice,
books, and tech through the years... Dave is posting regularly in his normal
simple, scientific, and thorough way at GoFastNews.com.

Found it about a week ago... GoFastNews was founded in late
2007. Enjoy!

 

doggonit,

i was hoping you were going to say he was posting here!

 

Kyle,

I am a devout fan of his, and thank you for the heads up!

Plasticman

 

Okay I'll show my ignorance... Who is David Vizard? Thanks Dave

 

Do a search for him:

http://search.yahoo.com/search?p=dav...p=mss&ei=UTF-8

or:

http://www.trackpedia.com/forums/showthread.php?t=610

If you want to make HP, his writing is a great place to start!

Plasticman

 

Did a search just thought I'd ask the forum. Thanks. I'll remember that next time you ask a question.

 

Dave... lying in wait for Plasticman are you??

I would classify Dave Vizard in the upper echelon of
the Engine Elite.... from a knowledge perspective... I don't know
where you would find a more informed performance engine teacher.

The only place I think you would even come close would be
to have a personal audience with a 20 year veteran of Cosworth or
Ilmor Engineering... and hope that vet could explain what he was doing in terms you could understand.

Vizard is an engineer by trade...not a sliderule superman he is
skilled in the art of head porting. An academic and prolific researcher
no doubt as evidenced by the research he breaks down into laymen's
terms in his technical articles.

Vizard has written books on Carburetion, Porting-Valvetrain-Cams, and Engine building... all of them should be in your library at home. Vizard is a gold mine of information... read everything you can
that he has written.

 

Thank you for taking the time to explain. I have to say that I miss Duke's posts.. I take it that is who you were referencing also. I'll have to purchase some more books to add to my library so I can become more informed. Dave

 

When asking a relatively simple question that can be answered by a search of the internet, what do you expect? Actually, since I even provide you with links (and a basic answer), I thought I was being helpful.

But for your info, I always do searches before asking a question (and then in most cases don't bother to ask). Was brought up "to never ask a question unless you think you know the solution", or at least have researched it sufficiently to ask all the right questions "once".

Plasticman

 

 

damn, I better not see any more of those pesky run-hot posts 'round here, or "what tires will fit on my C2" - pesky bastards better search the net first, and perhaps the forum

matter of fact, since damn near every little thing on my 65 has been covered on the net already, why the hell would I even ask a question, ever?

Answer => because I like to hear the views on the matter held by my forum friends.

 

Ah yes, the forum bully is back. Try to be helpful, and get rammed for it.

Thanks Jack, very typical.

Corvette (to make it legal).

Plasticman

 

John
at least Jack is entertaining, and informative; even if he is a bit 'much' at times... but there is one person i wouldn't even cross the street to "P" on if he was on fire, and it ain't Jack (or you... )
Bill

 

Easy, Jack...keep'em above the belt..

the sissylala was funny..

 

Guess I better not ever catch fire than...

 

Back to the topic...

 

Gas Porting of Pistons to get a more effective ring seal is something
that NEXTEL CUP teams and Dirt Trackers have been engaging in for a long time...

The more efective the seal... the more effective the draw...just like
a new bicycle hand air pump vs. trying to use one whose rubber seal had worn down after years of use.... the better sealed new pump always pulled in and pushed out more air..... similar to your pistons.

Vizard posted a reply this morning to a tech article he did called
Crevice Volumes - Stealth Power Thief... which is a scientific nomenclature for..... Why you should use Gas Ported Pistons..
he discusses how much power innefectively sealed ring lands rob...
... and goes into some detail about Gas Porting.

Vizard replied to some questions on this tech article this morning
Sunday the 2nd.. at 8am..

 

Kyle,
You (and Vizard)are absolutely correct with this technology. In addition to gas porting I used a set of teflon buttons (4 per piston) to keep the piston stable and the ring absolutely square with the cylinder wall. This along with crankcase evacuation through the exhaust and ceramic coated piston tops really were state of the art for our team back in 1972.
I was running a destroked 300 cubic inch Ford Truck six in an NHRA modified production class. It featured a Boss 302 cylinder head which we fabricated from three cylinder heads. At the time this was far out technology.

Regards,

Fred

 

Thanks for the headsup KyleDallas!

Yo Dave (Youwish2bme), I too didn't know anything about David Vizard and became aware of his expertise and knowledge of building small block Chevys and head work from talking to old timers and hotrodders.

Here's a couple of books I bought last year. You can pick these up at Amazon.com and other book outlets. Great reading especially for novices like myself. There's a lot that he covers in depth.





As Kyle mentioned, David Vizard is a guru on these. To quote from the inside cover of How to Build & Modify Chevrolet Small-Block V-8 Cylinder Heads, by David Vizard:

"About the Author

Author David Vizard is an experienced engine-builder, road-race and drag race engine tuner, and engineer, having built high-performance engines for all types of cars from Camaros to dragsters to Chevrolet engines for a Lola T70 sports-prototype racer.

His workshop in California is equipped with a 1000 hp computer-controlled Superflow dyno, flow bench, and full machining and welding facilities, allowing him personally to experiement with and test the products and procedures covered in this book. Unless otherwise noted, all test results, tables, drawings and photographs in this book are by David Vizard.

The author has written more than 3,000 magazine articles and 21 books, ..."

This particular book was first published in 1991 so I'm not sure if he still has that shop today.

Plasticman is right on about giving David Vizard much respect.

Very good reads.

Regards,

Jim

 

Man...I think I remember seeing some articles in the mags about that welded together Cleveland head. So that was you??? Cool!


JIM