99FLHRCI Posted April 1, 2009 Report Share Posted April 1, 2009 http://www.coatesengine.com/index.html Quote Link to comment Share on other sites More sharing options...
CRed05 Posted April 1, 2009 Report Share Posted April 1, 2009 interesting.... Quote Link to comment Share on other sites More sharing options...
Mojoe Posted April 1, 2009 Report Share Posted April 1, 2009 Great info. Thanks for posting. Quote Link to comment Share on other sites More sharing options...
SilverEvo8owner Posted April 1, 2009 Report Share Posted April 1, 2009 Re... Quote Link to comment Share on other sites More sharing options...
Gergwheel1647545492 Posted April 1, 2009 Report Share Posted April 1, 2009 post Quote Link to comment Share on other sites More sharing options...
unfunnyryan Posted April 1, 2009 Report Share Posted April 1, 2009 In their video they said they tested their engines up to 14850 rpm... want... Quote Link to comment Share on other sites More sharing options...
Draco-REX Posted April 1, 2009 Report Share Posted April 1, 2009 In their video they said they tested their engines up to 14850 rpm... want... Well, you theoretically wouldn't have any valve float.. There's just an issue of oiling and the added rotational mass. Very interesting. This could work well on Direct Injection engines. Quote Link to comment Share on other sites More sharing options...
Avenger1647545502 Posted April 2, 2009 Report Share Posted April 2, 2009 It was used back in the day for steam engines. They had an article on the Coates prototype in Hot Rod back in the early 90s, it was built on an older 350 motor. They were apparently about to go into production, but I guess that hasn't happened in the last 15 or so years. Quote Link to comment Share on other sites More sharing options...
zeitgeist57 Posted April 2, 2009 Report Share Posted April 2, 2009 Avenger got me thinking about another old Hot Rod Magazine article I remember from a company called Arao...they made a bolt-on 32valve head for the Chevy 350. It was wild looking... Quote Link to comment Share on other sites More sharing options...
Ry_Trapp01647545522 Posted April 2, 2009 Report Share Posted April 2, 2009 Avenger got me thinking about another old Hot Rod Magazine article I remember from a company called Arao...they made a bolt-on 32valve head for the Chevy 350. It was wild looking... i remember reading about these a while ago. appearantly still around too... http://www.araoengineering.com/ ...they make bolt on 4v heads for small block/big block/LSx chevy engines, early HD engines, and VW beetle engines. prices are damn steep though($7,500 for LSx and $10,000 for big block:eek:)! make sure to check out the vids, that engine sounds absoloutley insane! Quote Link to comment Share on other sites More sharing options...
appn88 Posted April 2, 2009 Report Share Posted April 2, 2009 thats too pricey... lol Quote Link to comment Share on other sites More sharing options...
Ry_Trapp01647545522 Posted April 2, 2009 Report Share Posted April 2, 2009 upon a quick google search, it appears that next to no one has ever even seen those heads. nelson racing has a set, but, short of them, i cant find anyone else. Quote Link to comment Share on other sites More sharing options...
appn88 Posted April 2, 2009 Report Share Posted April 2, 2009 10,000 can you understand why?!?! lol nelson can actually afford them, thats more expensive than a lot of crate motors!!!! Quote Link to comment Share on other sites More sharing options...
Ry_Trapp01647545522 Posted April 2, 2009 Report Share Posted April 2, 2009 no, there have been a LOT of people that have ordered them and not recieved their heads. google the company name to see thread upon thread(mostly about 4v heads for windsor V8s). Quote Link to comment Share on other sites More sharing options...
Avenger1647545502 Posted April 2, 2009 Report Share Posted April 2, 2009 There were a BUNCH of companies back in the late 80s-early 90s trying to get their particular OHC conversions to the market. Most of them were nothing more than snake-oil, but there were a couple that at least got into customer cars. There was a Ford 460 head that looked like a Cammer, but was DOHC, with one cam driven by the crank, and driving the other by a tiny chain. Edelbrock did a 3-valve SOHC head for the LT-1 for GM sometime in 91 as an experiment that went nowhere. There was even a DOHC head for the 500cid CADILLAC motor, which made some runs in a rail dragster. The weirdest one I remember was a SBC head that used OHC for the 2 intake valves, but the in-block cam for the exhaust valves. Quote Link to comment Share on other sites More sharing options...
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