Best Thing You Can Do With The Wimpy DOHC Engines That Loser slow eddy Loves?

Rip them out and toss them in the garbage where they belong. Powerful and affordable Push rod engines rule, while all a loser like slow eddy can do is drool:

https://www.youtube.com/watch?v=LAcXtvhqTaY

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
On Friday, February 27, 2015 at 12:10:47 PM UTC-8, jon_banquer wrote:

Now at 10 views.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
On Sat, 28 Feb 2015 14:34:01 -0800 (PST), jon_banquer

Ha-ha! JB, desperate for affirmation that he is somehow significant, is feverishly counting "views" of unattributed YouTube videos.
Hey, Jon, since you bring up those old pushrod engines, what happened to the Chevy 5.5 liter prototypes at Daytona last month? They went around the track like they were on parade -- following the leader, a "wimpy" 3.5 liter, DOHC Ford.
Better luck next time, huh? Maybe they need another liter or two. Or maybe they need some more "advanced" design. How about a flathead? <ggg>
--
Ed Huntress

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
On Sat, 28 Feb 2015 17:49:19 -0500, Ed Huntress wrote:

I want to see just what you can do with flatheads. I want to see a racing class that's "anything you want to do to the engine, as long as it's a flathead". Give that a decade or so, and you may see some real performance out of the flatties.
Hey -- maybe Jon's thinking that DOHC engines don't work because it'd be a bad idea to make a DOHC flathead?
--
www.wescottdesign.com

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
wrote:

Streamliners were getting around 220 hp out of them in the '50s. With a blower, they've produced some impressive power in drag racing.
However, the fuel economy would be dismal. They have 'way too much surface area in the combustion chamber.

May be. But that would, indeed, be a bad idea. <g>
--
Ed Huntress

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
wrote:
<snip> >

BTW, if you're seriously interested in them, you should look into the research done by Sir Harry Ricardo (he of the "Ricardo combustion chamber"):
http://www-g.eng.cam.ac.uk/125/achievements/ricardo/#7.%20COMBUSTION
I think there are entire books, either by him or about him, that discussed the many issues involved in making a flathead engine give its best performance. You'll also find some old published research done at the Sloan labs at MIT.
There are several issues besides just the surface area -- valve shrouding, flame-path length (the biggie); swirl; and so on. It's an interesting study for anyone who loves engines.
--
Ed Huntress

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
On Sat, 28 Feb 2015 15:26:15 -0800 (PST), jon_banquer

What, no excuses for the Corvette Protoype V8 failures at Daytona?
I'm disappointed in you, Jon. I thought you'd have some tall tale all cooked up.
--
Ed Huntress

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
On Sat, 28 Feb 2015 16:31:06 -0800 (PST), jon_banquer

You must be really sore about the Corvette DPs losing out to that "wimpy" little DOHC Ford, eh, Jon?
Maybe they should try what Ford did in the mid-'60s, when their 4.7 liter GT40 got creamed by the 3.5 liter Ferraris at LeMans. Being an obnoxious bully by nature, Henry II stuffed a 7-liter pushrod engine into the car. Finally, he beat the Ferraris -- which were running engines half the size of the Fords.
But then Ferrari punched their engine out to 4.5 liters, and, at Daytona, they cleaned Ford's clock.
That one got you really sore, too, as I remember.
Thanks to Henry's shenanigans, rules were changed all over the world to limit engine sizes for the top prototype classes, which previously were unlimited. Thus, Chevy is now running the limit -- 5.5 liters. And it wasn't enough.
--
Ed Huntress

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
On Mon, 2 Mar 2015 10:23:59 -0800 (PST), jon_banquer

How did your "prototype" antiques do at Daytona, Jon?
Maybe they should have used Duntov's Ardun cylinder heads. <g!>
--
Ed Huntress

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
On Mon, 2 Mar 2015 11:50:45 -0800 (PST), jon_banquer

The '80s? You mean, when every single GTP championship was won by a car with DOHC? <ggg!>
Jon, if you ever thought through what you were saying, you'd be dangersous.
--
Ed Huntress

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
On Mon, 2 Mar 2015 14:34:43 -0800 (PST), jon_banquer
You didn't say anything about that, Jon. You just said that the Chevy pushrod V6 was exciting. Indeed it was -- both as a racing engine and as a hand grenade. <g> What it *wasn't* was a race winner. And that, you'd realize if you weren't half-fast, is the objective.

You really do talk through your hat about racing and engines, Jon. You picked one of the all-time losers -- the turbocharged Chevy V6 built by Falconer for GM -- and you got all excited because it put out a lot of power.
It did. And then it would break. You can make a tractor engine put out a lot of power if you over-supercharge it, as Falconer did, with the Warner-Ishi turbocharger blowing the hell out of that asthmatic little pushrod engine. He eventually got around 1,000 hp out of it. Then, bang. <g>
Chevy finally realized it was barking up the wrong tree, trying to promote its V6 sedan engine by pretending it was a hot racing engine. It just didn't have what it takes. From the time they started with that engine at the beginning of 1985 until Chevy pulled out at the end of 1988, after pouring megabucks into the effort, it won exactly two races.
I'd say you've been reading too many car-buff magazines and not studying enough about engine design. You don't know what you're talking about most of the time.
--
Ed Huntress

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
On Mon, 2 Mar 2015 15:33:17 -0800 (PST), jon_banquer

Suuuure ya' did.
Let's take just one year, 1987, and see what happened to the Corvettes in the IMSA GTP series:
Road Atlanta -- DNF, blown head gasket Riverside -- DNF, broken valve spring Mid-Ohio (Andretti) -- DNF, throttle sensor failed Mid-Ohio (van der Merwe) -- DNF, misfire West Palm Beach -- DNF misfire, body damage, fire Portland -- DNF, debris hit kill switch Road America -- DNF, rain-shorted electronics San Antonio -- DNF, overheating Del Mar -- DNF, unspecified
(from _Inside IMSA's Legendary GTP Race Cars, Martin and Fuller.)
The FI gave them a lot of grief, but it could only have caused the DNFs at Mid-Ohio and West Palm Beach -- and it isn't certain that's what caused the DNFs in those cases, either.
Blown head gaskets and broken valve springs are common problems with over-stressed race engines.
This is exactly what you did years ago, when you took a Ford press release as your "source" and claimed all the Fords failed at Daytona because of a Kar Kraft transmission. Only it wasn't true, as we showed from the detailed account of the race by AutoWeek.
Bonkers, you're so full of crap that you're going to die of sepsis if you don't knock it off. Now, stick to things you actually know something about if you're going to be sarcastic.
--
Ed Huntress






>
  Click to see the full signature.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
On Mon, 2 Mar 2015 17:43:01 -0800 (PST), jon_banquer

Whatsamatter, Jon? Can't handle the facts?
Go lick your wounds, you phony.
--
Ed Huntress

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
On Mon, 2 Mar 2015 18:38:35 -0800 (PST), jon_banquer

That's quite a claim for a Barcalounger racer, Jon. <g>
Your rant, however, is up against everything I said, including the documented race results -- including that the engines that you're talking about only won two races during the years they ran, from 1985 to 1988, and they never won a championship.
As all of those DNFs demonstrate, they'd go like hell, and then break.
You could get horsepower out of a bagpipe is you supercharged it enough. But it wouldn't win. Chevy ran those engines for marketing reasons, but they just weren't up to winning.
If you didn't blow so much smoke and try so desperately to show that you're not an insignificant kook, you'd have a lot less trouble when you make mistakes.
--
Ed Huntress

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
On Mon, 2 Mar 2015 19:13:07 -0800 (PST), jon_banquer

An accurate recap: Ed doesn't bullshit, which leaves Babbleon Jon frustrated as hell, because he can't get his half-assed, juvenile bluster to stick.
Oh, well....
--
Ed Huntress

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
On Mon, 2 Mar 2015 19:32:48 -0800 (PST), jon_banquer

--
Ed Huntress

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
On Mon, 2 Mar 2015 20:11:07 -0800 (PST), jon_banquer

Babbleon Jon craps out again....
--
Ed Huntress

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
On Mon, 2 Mar 2015 21:35:03 -0800 (PST), jon_banquer

(Bonkers slithers away, leaving scarcely a rustle of grass behind him...)
--
Ed Huntress

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
On Wed, 1 Apr 2015 08:39:36 -0700 (PDT), jon_banquer

Projecting again, eh, Jon?
And here you were all excited about the new Ford GT. We haven't heard you talking about it lately. What happened? Maybe you found out that it has a wimply little (3.5 l) DOHC V6 engine? d8-)
--
Ed Huntress

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
jon_banquer said:

Those engines are bullshit, that's why you don't see them in Le Mans endurance racing or top notch F1.
Hell, NASCAR has them, but they were afraid of introducing the carburetor, even when though they claim to be "stock cars", no car had been sold in North America with a carburetor since 1988.
You stupid Hillbilly. What you like is only seen in NASCAR and engines by Briggs and Stratton.
You may has well add an 8-track player! LOL!
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Polytechforum.com is a website by engineers for engineers. It is not affiliated with any of manufacturers or vendors discussed here. All logos and trade names are the property of their respective owners.