[DeTomaso] NPC: DOHC or Pushrod holy war.....Was: New Corvette Engine

[corey price]

Okay, I just have one comment:

DOHC makes it much easier and cheaper to implement independent intake/exhaust variable valve timing. 

Just my two cents.




On Jun 3, 2011, at 1:43 PM, Dave Londry wrote:

> Now if you said:
> "There is no reason to build a DOHC engine instead of a SOHC engine"
>  - I could get that. Twin cams are just more shit to keep spinning and 
> the width is ugly,
>     So long as you manage to place big valves, across a hemi chamber, a 
> single cam is fine.
> 
> But a pushrod with in-line valves - that's just still more heavy shit to 
> keep moving and to no benefit.
> 
> Now the direct injection system in the new LS is very fine - keep that part.
> dave
> 
> (duckin' and weavin')
> 
> 
> 
> On 6/3/2011 12:28 PM, michael frazier wrote:
>> Weak...very weak.  If you want to start a holy war, well then:
>> 
>> I hope the new Vette doesn't go to a OHC engine more like the high-end Euro competition.  That would be a step
>> backwards in performance if it ran like a F-car or Lambo.  Ford now builds engines bigger on the outside that an old Hemi,
>> smaller on the inside than a 289, and just overly complicated.  I think you're now required to put your testicles in your
>> purse when you buy a new (plastic magnet) Mustang.
>> 
>> On an only slightly more serious note...I don't think they would gain anything over the LS engines.  Those are beautiful
>> engines capable of much much more than they than come off the assembly line with.  Pushrods, overhead cams,
>> in the real world one's not "better", they're just different.
>> 
>> Michael Frazier
>> Gruppo Rompiculi Corsa
>> Pushrods are better.
>> 
>> 
>> 
>>> Date: Fri, 3 Jun 2011 15:07:01 -0400
>>> From: rob at dumoulins.net
>>> To: detomaso at realbig.com
>>> Subject: [DeTomaso] NPC: DOHC or Pushrod holy war.....Was: New Corvette Engine
>>> 
>>> Personally, I believe a Dual Overhead Cam design is superior and wondered
>>> why it took so long for US manufacturers to adopt it in their high-end
>>> motors.
>>> 
>>> Flame On
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