Search found 1751 matches

by David Vizard
Sat Nov 18, 2023 4:11 pm
Forum: Race Cars & Parts - For Sale or Wanted
Topic: DV'S SURPLUS DYNO PARTS SALE
Replies: 0
Views: 726

DV'S SURPLUS DYNO PARTS SALE

Guys, I have got 3 sales video's coming up on my YouTube channel 'PowerTec 10'. A lot of the stuff is Terry Walters surplus to requirements parts and my dyno time only parts. Many prices are as much as 55% off Summits price. There are heads, cranks, rods, blocks, intakes, lifters, carbs etc. Summit ...
by David Vizard
Sat Nov 18, 2023 4:08 pm
Forum: David Vizard forum
Topic: New heavily discounted parts sales
Replies: 1
Views: 786

New heavily discounted parts sales

Guys, I have got 3 sales video's coming up on my YouTube channel PowerTec 10. A lot of the stuff is Terry Walters surplus to requirements parts and my dyno time only parts. Many prices are as much as 55% off Summits price. There are heads, cranks, rods, blocks, intakes, lifters, carbs etc. Summit pr...
by David Vizard
Sat Nov 18, 2023 3:55 pm
Forum: David Vizard forum
Topic: the DV Live Now post
Replies: 41
Views: 10342

Re: the DV Live Now post

What's kind of interesting in this latest EMC and EMC rebuttal is that if I understand it correctly, the 128 "formula" came about from innumerable dyno tests. That is, for a "given combination", (and we've seen that combination is very specific in the grand scheme of things), gr...
by David Vizard
Sat Nov 18, 2023 3:47 pm
Forum: David Vizard forum
Topic: the DV Live Now post
Replies: 41
Views: 10342

Re: the DV Live Now post

Jon,

Did you see episode 110 of PowerTec 10?
DV
by David Vizard
Sun Jul 16, 2023 3:53 pm
Forum: David Vizard forum
Topic: the DV Live Now post
Replies: 41
Views: 10342

Re: the DV Live Now post

No disrespect here, but rather than telling us how good you are i would have thought the best way to prove something was with a comprehensive set of undisputable test data that supports your position. Just how manytimes do I have to show my worth??????? You know I might just have other things to re...
by David Vizard
Sun Jul 16, 2023 3:46 pm
Forum: David Vizard forum
Topic: That 128 controversy
Replies: 5
Views: 1694

Re: That 128 controversy

David, In the video you talk about the opening and closing rate as being important, I agree. But is it not easier to just say what happens in effect is the overlap specific time area increases and easier to give a number to, rather than increased valve acceleration? After all, keeping the opening a...
by David Vizard
Thu Jul 06, 2023 12:10 pm
Forum: David Vizard forum
Topic: That 128 controversy
Replies: 5
Views: 1694

That 128 controversy

First a quick note to Mike here. I wish to address the entire ST community not just the ones who read my section so here goes. How many of you have looked at my 128 LCA proof of concept video on my Powertec 10 YouTube channel. Let see what arguments the nathsayers can bring to bare after watching th...
by David Vizard
Sun Apr 09, 2023 10:55 pm
Forum: David Vizard forum
Topic: David Vizard's 128 cam selection for small block Chevys
Replies: 41
Views: 7060

Re: David Vizard's 128 cam selection for small block Chevys

Waste of time. Title "Hyper advanced ProStock-plus, cam tech" for a video about 10:1 SBCs targeted toward complete novices with nothing at all relevant to Pro-Stock. Jon, Only you could misinterpret a video that is about as explicate as it gets. It will predict a ProStock cam right on the...
by David Vizard
Sun Mar 26, 2023 8:57 pm
Forum: Offtopic Forum
Topic: Big shout out to David Vizard and Terry Walters of TWPS
Replies: 21
Views: 8565

Re: Big shout out to David Vizard and Terry Walters of TWPS

What did you pay to get the DV specs? lol. Not laughing at you, just the idea of his arrogance. Also, doesn't surprise me with the ethics, it's happened before . Also, whatever you were told it would make, subtract 10%. Not a fan. Big Chief, do you even know DV? Have you ever had any dealings with ...
by David Vizard
Sun Mar 26, 2023 8:31 pm
Forum: Offtopic Forum
Topic: Big shout out to David Vizard and Terry Walters of TWPS
Replies: 21
Views: 8565

Re: Big shout out to David Vizard and Terry Walters of TWPS

What did you pay to get the DV specs? lol. Not laughing at you, just the idea of his arrogance. Also, doesn't surprise me with the ethics, it's happened before . Also, whatever you were told it would make, subtract 10%. Not a fan. It appears that no one who actually knows me thinks I am arrogant. I...
by David Vizard
Sun Mar 26, 2023 8:09 pm
Forum: Show & Tell
Topic: David Vizard & Terry Walters Sad Issues
Replies: 12
Views: 3151

Re: David Vizard & Terry Walters Sad Issues

Hi, It is with great disappointment I've head trying to solve issues with both these men. I've purchased a engine built by Terry Walters to David Vizard's specifications. I've only had issues paying for things and not receiving them. I've contacted both these people and got the brush off from them ...
by David Vizard
Wed Nov 16, 2022 3:24 am
Forum: Engine Tech
Topic: High efficiency small engine
Replies: 42
Views: 12897

Re: High efficiency small engine

I'm looking for a good small engine to use to power a 300 lb car (with driver) to get the highest fuel economy possible. Would a two stroke or 4four stroke have the advantage here? I am thinking maybe a moped engine or maybe something like a new 4 stroke MX bike engine. Any suggestions? Jon, Before...
by David Vizard
Tue Nov 15, 2022 9:27 pm
Forum: David Vizard forum
Topic: D V Live now.
Replies: 108
Views: 31408

Re: D V Live now.

More fresh DV on lobe sep angle https://youtu.be/IjfwqgpspnA That's a weird video, it's mostly about overlap and he keeps brining up LSA, then it's about intake closing in relation to compression and he fails to mention that and calls it LSA. Old mate obviously didn't need a low idle speed so he go...
by David Vizard
Tue Nov 15, 2022 9:21 pm
Forum: David Vizard forum
Topic: the DV Live Now post
Replies: 41
Views: 10342

Re: the DV Live Now post

David, none of what you posted validates your 128 gimmick. The fact that the following variables influence the ideal LSA, and that your 128 formula does not take them as input, is all one needs to know to understand that the 128 formula is not comprehensive. Throttle size Intake manifold Port flow ...
by David Vizard
Sun Nov 13, 2022 2:22 am
Forum: David Vizard forum
Topic: the DV Live Now post
Replies: 41
Views: 10342

Re: the DV Live Now post

David you should know I'm Tom Smith on Youtube, and I'll come up in the comments. I'm a generation behind you but will have crossed paths with a small number of your connections, we had the 1987 WTCC on my caravan doorstep at Calder Park just out of Melbourne Victoria where I was working with Kiwi ...