- 1. Four-Valve Pentroof Chamber VS Two-Valve Hemi Ditto (score: 1)
- Author: ardunbill@webtv.net
- Date: Wed, 26 Feb 2003 15:05:10 -0500 (EST)
- One of my West Coast Vincent friends, Bill Martz, who enjoys the Ardun and LSR items I send him from our List, wanted to pose a question to the technical experts here. Bill was half of the Martz-Auge
- /html/land-speed/2003-02/msg00462.html (8,004 bytes)
- 2. Re: Four-Valve Pentroof Chamber VS Two-Valve Hemi Ditto (score: 1)
- Author: Bryan Savage <basavage@earthlink.net>
- Date: Wed, 26 Feb 2003 12:45:01 -0800
- Better combustion chamber. Shorter flame front travel and reduced stagnate end gas areas. The end gas areas are a primary source of combustion instability ( pre ignition and detonation) Very superior
- /html/land-speed/2003-02/msg00464.html (8,517 bytes)
- 3. Re: Four-Valve Pentroof Chamber VS Two-Valve Hemi Ditto (score: 1)
- Author: Dave Dahlgren <ddahlgren@snet.net>
- Date: Wed, 26 Feb 2003 16:40:06 -0500
- They are by far the best combustion chamber design short of a 5 valve with 3 int 2 exh.. Highest specific power output least trouble with detonation lightweight valve gear that will go to 14k rpm wit
- /html/land-speed/2003-02/msg00466.html (9,767 bytes)
- 4. RE: Four-Valve Pentroof Chamber VS Two-Valve Hemi Ditto (score: 1)
- Author: "Russel Mack" <rtmack@concentric.net>
- Date: Wed, 26 Feb 2003 16:18:35 -0600
- Dave has mentioned the higher HP available via higher RPM-- which is allowed by the lighter valves/ less inertia/ less tendency to float. Quite true, and quite a sizable advantage. There is also mor
- /html/land-speed/2003-02/msg00471.html (9,318 bytes)
- 5. Four-Valve Pentroof Chamber VS Two-Valve Hemi Ditto (score: 1)
- Author: Elon Ormsby <ormsby1@llnl.gov>
- Date: Wed, 26 Feb 2003 16:28:23 -0800
- Bottom-line... 1/2 the RECIPROCATING weight! With a lighter valve you can have a more aggressive cam profile (more area under the curve) or more rpm or BOTH. All the good things Dave mentioned are tr
- /html/land-speed/2003-02/msg00474.html (7,505 bytes)
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