jacob80 Posted December 19, 2012 Share Posted December 19, 2012 Came across this on RA64Freddy's blog. I need more information on this engine! http://ra64freddy.com/2012/12/16/loch-ness-unicorn/ Quote Link to comment Share on other sites More sharing options...
zero Posted December 19, 2012 Share Posted December 19, 2012 Looks like the LY head to me. I've never seen a turbo one before though. Beautiful car. Quote Link to comment Share on other sites More sharing options...
texis30O Posted December 19, 2012 Share Posted December 19, 2012 Good looking set up. Not much of a blog.... pics are teasers.... should be more info on there..... Quote Link to comment Share on other sites More sharing options...
tamo3 Posted December 19, 2012 Share Posted December 19, 2012 I think that car is from Speed Shop Falcon. http://www.ssfalcon.com/lytwinturbo.htm "Nissan racing team works with the 240ZR, very few that are supplied to private racing teams, then, cross-flow head "LY" is only for race engine. " http://www.ssfalcon.com/lytwin/evolution-q.htm Quote Link to comment Share on other sites More sharing options...
R3VO 3VOM Posted December 20, 2012 Share Posted December 20, 2012 That is soo awesome. Can't say I've ever seen a setup like that before. Quote Link to comment Share on other sites More sharing options...
Tony D Posted December 20, 2012 Share Posted December 20, 2012 Turbo'd LY, yep. Quote Link to comment Share on other sites More sharing options...
tamo3 Posted December 20, 2012 Share Posted December 20, 2012 The article said, without twin turbo, it will produce 300HP and with twin turbo, it's easy to get 600HP... Wow! Quote Link to comment Share on other sites More sharing options...
Tony D Posted December 20, 2012 Share Posted December 20, 2012 Yep, actually LY's were making 325+ as L24's... Bigger engines make more! Quote Link to comment Share on other sites More sharing options...
jacob80 Posted December 21, 2012 Author Share Posted December 21, 2012 Yep, actually LY's were making 325+ as L24's... Bigger engines make more! Tony, what do you know about these heads? Who produced them? Are these just straight L24 bottom ends from the factory with this "LY" head bolted up to it? Quote Link to comment Share on other sites More sharing options...
steve260z Posted December 21, 2012 Share Posted December 21, 2012 Can anyone help with the wheels? Thanks, Steve Quote Link to comment Share on other sites More sharing options...
Xnke Posted December 22, 2012 Share Posted December 22, 2012 (edited) They are thoroughly covered on this site in other posts. The LY head is a nissan competition part, quite uncommon as far as bits and bobs go, and was installed on pretty much a factory bottom end. There was race prep done, yes, but the block is a regular P30 or N42 block selected for uniformity. I am not clear on the cam timing system...the LZ heads were gear timed, but they are for the 4-cylinder engines. It's a two-valve, crossflow head. Not unlike a Z-series head, actually, at first glance. Edited December 22, 2012 by Xnke Quote Link to comment Share on other sites More sharing options...
tamo3 Posted December 22, 2012 Share Posted December 22, 2012 Steve, The wheel is Nissan works wheel used for 240ZR. http://translate.google.com/translate?hl=en?sl=ja&tl=en&u=http%3A//www.ssfalcon.com/hihou/2.htm Quote Link to comment Share on other sites More sharing options...
santanawhite Posted December 22, 2012 Share Posted December 22, 2012 That looks insane. Quote Link to comment Share on other sites More sharing options...
PMC raceengines Posted December 22, 2012 Share Posted December 22, 2012 (edited) LY twin turbo setup , im sorry i thought its was a coppy , there are many bad coppys now , people using rb20e heads to look the same , Edited December 22, 2012 by PMC raceengines Quote Link to comment Share on other sites More sharing options...
PMC raceengines Posted December 22, 2012 Share Posted December 22, 2012 (edited) All bolted on a L bottom end n42 block and they dont make 300 na not even close ,,,, ITs all about the look boys the copy that is crap , Edited December 22, 2012 by PMC raceengines Quote Link to comment Share on other sites More sharing options...
HS30-H Posted December 22, 2012 Share Posted December 22, 2012 All bolted on a L bottom end n42 block and they dont make 300 na not even close ,,,, ITs all about the look boys You know, it's really hard to take you seriously with some of the billy bullshit you come out with sometimes. Do you honestly think Nissan designed, built, developed and homologated the 'LY' all for "the look"? Nissan's own published figures for the full LY28 ( ie, the type sold to privateer racers in Japan ) tell their own story: This was recommended as a package, and not just a cylinder head to drop onto a stock or stockish bottom end. At 2870cc, with an 11.7:1 compression ratio, on three 50PHH Mikunis and with factory CDI, they quoted a nice round 300ps @ 7,600 rpm and 32kg/mm @ 6,400 rpm. Max recommended revs were 8,000 rpm. Block was a 'specially selected' N42, but with additional processing and with Wills ring type head gasket sealing. There was a dedicated CM40 crank with narrow rod journals, special ( narrow journal ) rods, pistons and flywheel. It required the dedicated bellhousing and engine mounts too, as it canted the block over on the opposite side to stock. Factory 'Works' circuit race versions of the LY ( some of them internally nicknamed the 'R390' engine ) on ECGI injection and with dry sump were giving well in excess of the figures quoted for the privateer versions. Trouble is, people look at the LY and they don't understand it. They don't understand what it was designed to do, they don't understand what type of racing it was designed to be used in, and they don't understand what it was homologated to do. Nissan was not playing a game of 'Top Trumps'. Quote Link to comment Share on other sites More sharing options...
HS30-H Posted December 22, 2012 Share Posted December 22, 2012 Your all wrong sorry .. its a rb20 sc head made to look like a works engine its a kit you can buy in japan now and no it does not make big power the ports are to small and the valves are to small .. Just to clarify: The engine pictured is using a genuine Nissan 11041-N3175 'LY' / 'Crossflow' cylinder head. A two-valve, semi-hemi chambered design using a single camshaft with twin rocker shafts and diagonally acting 'finger' type rockers. The first 'LY' heads were seen on factory race cars in Japan in late 1972, and were being used in competition by the Works team in early 1973. The LY was designed to be used with Nissan's own ECGI ( Electronic Control Gas Injection ) 'computer' injection system, and by the end of 1973 just such a setup ( LY with ECGI ) was being used on L24s mounted in factory Works rally cars competing in the World Rally Championship. The factory called these complete engines 'LR24', and sometimes LY24-R'. Later, bigger, versions used in circuit racing in Japan were also nicknamed 'L390' - in a tip of the hat to Nissan's defunct R380 / R381 / R382 / R383 sports-racing cars. The owner of the red car pictured has been developing his engine for a long time, and as it now stands he is running a twin turbo conversion on his LY head. This is something that the factory never did with the LY, although Janspeed here in Europe campaigned a turboed LY28-engined car in European races in the late 1970s. Beware of bad information about the LY ( or any other rare period Factory parts ) and be especially wary of dimwits who confuse them with recent RB20E-based lookalikes..... Quote Link to comment Share on other sites More sharing options...
HS30-H Posted December 22, 2012 Share Posted December 22, 2012 For reference: FIA / JAF homologation amendment for the E4622 'LY' crossflow head, Works 240Z rally car with ECGI injected LY head on L24 block, pictured prior to the 1973 RAC Rally, Works 240ZR race car with 'R390' injected crossflow engine in Japan, 1973. Quote Link to comment Share on other sites More sharing options...
steve260z Posted December 22, 2012 Share Posted December 22, 2012 Steve, The wheel is Nissan works wheel used for 240ZR. http://translate.google.com/translate?hl=en?sl=ja&tl=en&u=http%3A//www.ssfalcon.com/hihou/2.htm Thanks. Quote Link to comment Share on other sites More sharing options...
PMC raceengines Posted December 22, 2012 Share Posted December 22, 2012 (edited) AS for dim wits i know the LY is not just for looks ,,, you sir are a ass some times .. it looked like the copy from the pics and the head we have at work ,,, but i am wrong the plugs are on the wrong side to be a rb20e, im wrong i thought it was a the copy looks very close to this ,, and it does not go any where like the LY works engine ,,, Edited December 22, 2012 by PMC raceengines Quote Link to comment Share on other sites More sharing options...
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