kpr Posted June 11, 2023 Share Posted June 11, 2023 On 07/06/2023 at 14:16, Rhyscar said: Kinda makes you wonder if theres value in considering 2x different intake lengths? Can be used to smooth out the bumps in power curve. But having runners all the same length, at the ideal length. will get you best over all power by a little bit. Also if your picky about your afr. will be a bit all over the shop, unless tune each cylinder 2 Quote Link to comment Share on other sites More sharing options...
h4nd Posted June 11, 2023 Share Posted June 11, 2023 It's a .. thematically related pink PCB demo, with the first kinda tubular connector I found. Point being, you could run a loom on a PCB like this (e.g. heavy 2Oz / 4Oz copper, multilayer, mounting points from the engine bosses) for over the top of the engine), with plugs or wire terminating pads. If you wanted to. And if you had a PCB like that, then you could add LEDs to the top/underside, like for injector / ign firing, temperature gradient, peak RPM achieved, horoscope, BTC price... 4 1 Quote Link to comment Share on other sites More sharing options...
Willdat? Posted June 13, 2023 Share Posted June 13, 2023 I've used One Stop Cutting Shop, were reasonably priced and quick. https://www.onestopcuttingshop.co.nz/ 1 1 Quote Link to comment Share on other sites More sharing options...
anglia4 Posted June 15, 2023 Share Posted June 15, 2023 I've always found CNC Procut to be the cheapest. https://cncprocut.co.nz/ 1 2 Quote Link to comment Share on other sites More sharing options...
Roman Posted June 15, 2023 Author Share Posted June 15, 2023 Thanks. Bits have gone off to one stop cutting shop. See how it goes. 1 Quote Link to comment Share on other sites More sharing options...
rusty360 Posted June 18, 2023 Share Posted June 18, 2023 On 15/06/2023 at 13:34, Roman said: Thanks. Bits have gone off to one stop cutting shop. See how it goes. I send a bit to them from work and have had some complex folds done and they have always come back mint. Would 100% trade again. 1 Quote Link to comment Share on other sites More sharing options...
HumberSS Posted June 18, 2023 Share Posted June 18, 2023 I've seen people bake FDM prints in salt to remelt and sort of homogenize the parts to near the strength of a moulded part, basically sorts the interlayer adhesion issue. Here 1 Quote Link to comment Share on other sites More sharing options...
GARDRB Posted June 21, 2023 Share Posted June 21, 2023 Thanks buddy, now I'm thinking about laser cutting a sump from layers and layers of MDF 3 Quote Link to comment Share on other sites More sharing options...
anglia4 Posted June 25, 2023 Share Posted June 25, 2023 Whats the black goop on the plastic lego bits? Do you glue them as you go? So they're kind of one shot deals? Quote Link to comment Share on other sites More sharing options...
Roman Posted June 26, 2023 Author Share Posted June 26, 2023 Its just running the 3d print pen around the perimeter. Makes a satisfying crack when you break it back apart! Can reuse them. 3 Quote Link to comment Share on other sites More sharing options...
Popular Post fletch Posted June 27, 2023 Popular Post Share Posted June 27, 2023 Saw one of these at pick a part in a crown. I would say you have a bit of port work to do on the exhaust 8 2 Quote Link to comment Share on other sites More sharing options...
GARDRB Posted June 27, 2023 Share Posted June 27, 2023 11 hours ago, fletch said: Saw one of these at pick a part in a crown. I would say you have a bit of port work to do on the exhaust Jesus, is that carbon built up against the exhaust flange? Quote Link to comment Share on other sites More sharing options...
Roman Posted June 27, 2023 Author Share Posted June 27, 2023 I think they use the exact same shitty manifolds and gaskets on the rwd 4GR, 3GR, 2GR. So its just massively oversized for 4GR valves and ports. Just absolutely zero effort haha to make it suit the motor haha. So might be some easy gains. Like the echo though, I think the higher the compression ratio the more tolerant it is of a crappy exhaust. I looked at making ports a bit larger, but they seem reasonably decent given the valve size. I'm trying to get all of the basics together first, so it's running. Then that's when the fun part will begin, where I can buy a second motor and try some different porting ideas, try cut down the big divider between intake ports, stuff like that. 7 Quote Link to comment Share on other sites More sharing options...
yetchh Posted June 28, 2023 Share Posted June 28, 2023 You think that's crappy.. 1gr is almost zephyr 6 spec.. 1 1 Quote Link to comment Share on other sites More sharing options...
deankdx Posted June 28, 2023 Share Posted June 28, 2023 they look pretty good compared to the 1UZ ones from a 1989 crown 2 Quote Link to comment Share on other sites More sharing options...
GARDRB Posted June 30, 2023 Share Posted June 30, 2023 Yeah, quit your whining David 1 Quote Link to comment Share on other sites More sharing options...
Spencer Posted June 30, 2023 Share Posted June 30, 2023 Dang how much does a magic solid object printer thing cost? Quote Link to comment Share on other sites More sharing options...
Roman Posted June 30, 2023 Author Share Posted June 30, 2023 $100k USD, give or take... 2 Quote Link to comment Share on other sites More sharing options...
GARDRB Posted June 30, 2023 Share Posted June 30, 2023 35 minutes ago, Roman said: $100k USD, give or take... chump change Quote Link to comment Share on other sites More sharing options...
HumberSS Posted June 30, 2023 Share Posted June 30, 2023 Are they sintered metal or plastic parts? Are you comfortable having no radius where the runner meets the mounting flange? 1 Quote Link to comment Share on other sites More sharing options...
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