Hybrid Car – More Fun with Less Gas

better mileage with higher octane? - Page 21

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Posted by * on January 9, 2007, 9:48 pm

I had one tell me exactly that at Oxford Plains Speedway a few years back.

He was running a NASCAR Busch North Series car and he said, "Man, I wish we
could put my little Pro-Stock engine in. This track is so hard to hook up

The more circular and the flatter the track is, the less power and the more
chassis - "handling" -  is needed.

Too much power breaks the rear wheels loose all the time, and the car
certainly does not "handle" well.

Even if some were to take that aproach in

Posted by Steve on January 6, 2007, 3:32 pm

clare at snyder.on.ca wrote:

Yabbut, "stock" gets hard to define ;-)

The Max Wedge 426 engines were "available" as "stock" items (along with
'body in white' bare chassis with no interiors) for various drag
classes, and they were somewhere around 13:1. But for something you
could buy down at the dealer and drive home under its own power, yeah
11:1 or 12:1 was about the max.

Non-turbo prechamber diesels like the Olds are the ones with
astronomical compression ratios. Direct-injection diesels with turbos
are at the low end, I think some are down in the 13:1 range.

Posted by clare at snyder.on.ca on January 6, 2007, 4:33 pm

But a 13:1 CD diesel will NOT start without preheat.The old listers
were 19:1/15:1 and 22:1/19:1 start and run.These were "variable
compression" and used the high compression to start. They were
prechamber engines similar to a Ricarro or Comet.

Posted via a free Usenet account from http://www.teranews.com

Posted by Steve on January 7, 2007, 12:25 am

clare at snyder.on.ca wrote:

That's OK, the Olds usually didn't start *with* preheat ;) Nor do many
other prechamber diesels once the glow plugs start going south. Intake
air heaters are usually plenty to get DI diesels going, no need for
troublesome glow plugs.

Listers were just nifty, no question about it.

Posted by Solar Flare on January 8, 2007, 3:29 am

Maybe you are looking at the US version of the 350 instead of the
Canuck block?. This one was the real Olds engine before the Chev 350
narrow block ones became commonplace. My memory could be failing me
but I just remember they backed the compression ratios down after that
one. The trend was to increase compression more and more in the 60s.

<clare at snyder.on.ca> wrote in message

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