anyone tryed hotrockers

[Eric Bryant]

Seeing as how higher-ratio rockers also change the duration (especially as
measured at lower numbers, like 0.002" or 0.006"), maybe that needs to be
included in the changes that you're inputing into Desktop Dyno.  I can't
tell you how to calculate those changes, though.  

Seems to me that such a system would be of limited use.  I'm not sure why
one wouldn't want to run the higher ratio all the time, since it doesn't
really affect velocity in an adverse fashion.  I'm with you - I'd rather
sink the money into other parts. 
 
Kinda a neat idea, though.
 
Eric Bryant
mailto:bryante at ghsp.com <mailto:bryante at ghsp.com> 
http://www.novagate.com/~bryante <http://www.novagate.com/~bryante>  

-----Original Message-----
From: David & Cheryl Haggard [mailto:david at newcovenant.com]
Sent: Wednesday, June 20, 2001 3:44 PM
To: gmecm at diy-efi.org
Subject: RE: anyone tryed hotrockers


    Nuttin' wrong with being a newbie. We all were once. I think I still am.
    I'd like to see Jim McFarland's article on this, before I passed
judgment. However, running some quick Dyno2000 sims on my build doesn't look
promising. But the Hotrockers website does throw the caveat that your
engine's heads must be such that they will respond to higher lift. The flow
tests on my heads indicate that for my power range and camshaft, more or
less lift gives minimal return.
    Articles in Car Craft, Hot Rod, and others confirm this. Not all engines
respond dramatically to changes of rocker ratio. Others do. Until the
Hotrockers maker comes up with some sort of guide to help you tell ahead of
time whether they will help your engine or not, I'd sink my 930 bucks into
other parts.
 
Dave Haggard
   1988 Formula Firebird
   305 2 X 2-bbl CFI (under construction)
   http://www.newcovenant.com/firebird/
<http://www.newcovenant.com/firebird/> 


-----Original Message-----
From: owner-gmecm at diy-efi.org [mailto:owner-gmecm at diy-efi.org]On Behalf Of
HitManSmurf at aol.com
Sent: Monday, June 18, 2001 10:55 PM
To: gmecm at diy-efi.org
Subject: anyone tryed hotrockers


Click here: HOTROCKER! <http://www.hotrocker.com/>  there somewhat like v v
t but uses pushrods i think 
it looks like a great idea .hate to be a newbie but just want to contribute 

   the hitman 

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