Julius Jodelė 28 Posted September 25, 2017 Report Share Posted September 25, 2017 There are not too many aftermarket parts available to build a real race/competition Yamaha 2ZZ-GE engine. The ones that are available are just generic parts adapted to the 2ZZ. The 2ZZ engine seems to be a great starting point in that the block is made from MMC and therefore lighter, more compact and stiffer than a "conventional" cast block. Would this be the place to post custom designed and made parts for the 2ZZ engine? If not, can this post be moved to the appropriate place? And, is there any interest in the results? Quote Link to post Share on other sites
Popular Post Julius Jodelė 28 Posted September 27, 2017 Author Popular Post Report Share Posted September 27, 2017 (edited) I wanted a longer connecting rod for the engine, so we ordered custom titanium connecting rods Crower in the USA. And this is what they look like I looked at a lot of pistons, Cosworth, Wiseco, OEM, etc. and I didn't like any of them. So I've designed my own crown and 3D printed a piston to check valve clearances and to measure combustion chamber volume and then to flow bench them to check how they flow during the crossover phase. When we were happy with the design, we had Omega build us a set. and I think they came out very well... Edited September 27, 2017 by Julius Jodelė added weights of connecting rods 4 Quote Link to post Share on other sites
Bibs 11,717 Posted September 27, 2017 Report Share Posted September 27, 2017 Nice! This isn't your first go at this I assume! 1 Quote 88 Esprit NA, 89 Esprit Turbo SE, Evora, Evora S, Evora IPS, Evora S IPS, Evora S IPS SR, Evora 400, Elise S1, Elise S1 111s, Evora GT410 Sport Evora NA For forum issues, please contact the Moderators. I will aim to respond to emails/PM's Mon-Fri 9-6 GMT. Link to post Share on other sites
Julius Jodelė 28 Posted September 27, 2017 Author Report Share Posted September 27, 2017 Thanks... I have done individual pieces/components, but never all at once and all together. I'm liking how it is progressing...but it's taking so much longer than I had hoped. But that's how it usually goes, especially with such comprehensive projects. 2 Quote Link to post Share on other sites
Julius Jodelė 28 Posted October 25, 2017 Author Report Share Posted October 25, 2017 (edited) So, an intake manifold got printed up...and installed on the mule engine... Another angle... And the throttle body... We want to check out if the carbon printed manifold will hold up to the vacuum of an atmo engine first. Edited October 25, 2017 by Julius Jodelė Quote Link to post Share on other sites
Julius Jodelė 28 Posted June 23, 2018 Author Report Share Posted June 23, 2018 (edited) I had to redesign the manifold for the new material...finally finished! Edited June 23, 2018 by Julius Jodelė Quote Link to post Share on other sites
Popular Post Julius Jodelė 28 Posted June 23, 2018 Author Popular Post Report Share Posted June 23, 2018 And here is how the intake assembly will look 3 1 Quote Link to post Share on other sites
IgEvo400 20 Posted July 20, 2018 Report Share Posted July 20, 2018 How are things progressing? Superb work, impressive attention to detail, I can’t wait to see how this thing is going to perform. Quote Link to post Share on other sites
Julius Jodelė 28 Posted July 20, 2018 Author Report Share Posted July 20, 2018 I can't wait either. As all new things, It's not going as fast you would like/wish. I still had apprehensions with the last material found and finally found a material that I'm completely happy with. It can even be manufactured the way it was designed to be manufactured. This new material is even stronger than the last one, so to save money, I'm redesigning it again to take into account the better material properties. Meanwhile, the bottom end is being assembled and flow benching of the head is being done. I've designed intake port to improve flow. Quote Link to post Share on other sites
Popular Post Julius Jodelė 28 Posted August 17, 2018 Author Popular Post Report Share Posted August 17, 2018 I finally got the engine block back after Nikasil'ing the bores and silver powder coating of the block. 5 Quote Link to post Share on other sites
Steve V8 1,312 Posted August 17, 2018 Report Share Posted August 17, 2018 On 23/06/2018 at 09:53, Julius Jodelė said: And here is how the intake assembly will look Wow this looks fantastic from the outside, those veins look rather intriguing I'd be more interested in what's going on on the inside??? Quote Link to post Share on other sites
Julius Jodelė 28 Posted August 17, 2018 Author Report Share Posted August 17, 2018 1 hour ago, Steve V8 said: Wow this looks fantastic from the outside, those veins look rather intriguing I'd be more interested in what's going on on the inside??? I'll just say that there are full trumpets on the inside. The injectors point straight to the back of the valves. The volume of the plenum is 2.5x the working volume of the engine. Those ribs on the outside are for structural rigidity. Under full vacuum, the plenum only deflects 0.15mm! The plenum weighs 1.5kg. 2 Quote Link to post Share on other sites
Julius Jodelė 28 Posted August 19, 2018 Author Report Share Posted August 19, 2018 (edited) I've finally gotten the design to the point where I like it. It meets my criteria for loads. It is 10x as strong as it needs to be and only weighs 1.48kg. And the max deflection is only 0.158mm at the red spot. You can also make out some of the interior design features. OK...some movement on this project! Edited August 19, 2018 by Julius Jodelė 2 Quote Link to post Share on other sites
Julius Jodelė 28 Posted August 19, 2018 Author Report Share Posted August 19, 2018 And no stress analysis is complete without a check of the principal loads. principal compression loads are highest, no surprise because I put a 1 bar load. maximum tensile loads. Quote Link to post Share on other sites
Julius Jodelė 28 Posted April 15, 2019 Author Report Share Posted April 15, 2019 That 76mm throttle body looks huge... Quote Link to post Share on other sites
Gold FFM C8RKH 6,790 Posted April 15, 2019 Gold FFM Report Share Posted April 15, 2019 Wow! :) 1 Quote Alcohol. Sex. Tobacco. Drugs. Chocolate. Meh! NOTHING in this world is as addictive as an Evora +0. It's not for babies! The first guy to ride a bull for fun, was a true hero. The second man to follow him was truly nuts! Link to post Share on other sites
silverfrost 1,390 Posted April 15, 2019 Report Share Posted April 15, 2019 Amazing, the work looks stunning, cant wait to see the results and hope they go way past your expectations, fantastic work and a pleasure to read and veiw the cad 1 Quote A Link to post Share on other sites
Julius Jodelė 28 Posted April 15, 2019 Author Report Share Posted April 15, 2019 (edited) Top view Side view Bottom view Front view Back view Edited April 15, 2019 by Julius Jodelė 1 Quote Link to post Share on other sites
Julius Jodelė 28 Posted April 16, 2019 Author Report Share Posted April 16, 2019 with the AN fittings... :D Quote Link to post Share on other sites
Julius Jodelė 28 Posted April 17, 2019 Author Report Share Posted April 17, 2019 I thought I'd tease you with a couple of section views...just so you can see how much work went into this project. 1 Quote Link to post Share on other sites
Julius Jodelė 28 Posted April 29, 2019 Author Report Share Posted April 29, 2019 This is what forged, ceramic coated pistons look like for a 2ZZ-GE... 1 1 Quote Link to post Share on other sites
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