Captain Obvious Posted December 4, 2017 Share #13 Posted December 4, 2017 6 hours ago, zKars said: The flat tops in this case have no resemblance to the 73-74 Z carbs. Other than the air by pass hardware, they are just round tops with, well, flat tops.... I disagree with that 1000%. The only significant differences between what you have here and the 73-74 carbs is the integral float bowl and the inclusion of a REAL choke. Other than that, those 38mm flat tops are conceptually identical to the Z flat tops. So for all the folks who poo-poo the Z flat tops, but are drooling all over these things..... I got one word. "Hypocrite!" Link to comment https://www.classiczcars.com/topic/59088-510-sus/?page=2#findComment-536557 Share on other sites More sharing options...
Patcon Posted December 4, 2017 Author Share #14 Posted December 4, 2017 @NVZEE Where are you sourcing all the excellent diagrams? Link to comment https://www.classiczcars.com/topic/59088-510-sus/?page=2#findComment-536575 Share on other sites More sharing options...
NVZEE2 Posted December 4, 2017 Share #15 Posted December 4, 2017 (edited) Diagrams are from the “Nissan Motorsports Schematic Catalog”, p.n. 99996-M8015. Carl Beck posted a pdf on his site: http://www.jdmjunkies.ch/wordpress/2016-05-14/240z-nissan-motorsports-schematic-catalog-99996-m8015/ http://zhome.com/NissanMotorsportsSchematicCatalog.pdf Edited December 4, 2017 by NVZEE Link to comment https://www.classiczcars.com/topic/59088-510-sus/?page=2#findComment-536581 Share on other sites More sharing options...
Patcon Posted December 4, 2017 Author Share #16 Posted December 4, 2017 I couldn't get to it... and is that a pdf link, because I can't highlight it... Link to comment https://www.classiczcars.com/topic/59088-510-sus/?page=2#findComment-536592 Share on other sites More sharing options...
NVZEE2 Posted December 4, 2017 Share #17 Posted December 4, 2017 Updated links. The first one is a host page for viewing online and Carl's zhome url is a download. Link to comment https://www.classiczcars.com/topic/59088-510-sus/?page=2#findComment-536606 Share on other sites More sharing options...
Patcon Posted December 4, 2017 Author Share #18 Posted December 4, 2017 Much better, thanks C Link to comment https://www.classiczcars.com/topic/59088-510-sus/?page=2#findComment-536612 Share on other sites More sharing options...
zKars Posted December 14, 2017 Share #19 Posted December 14, 2017 (edited) Got these beautiful FLAT TOP carbs running on the 510 tonight. They run SO well. Took it out for a quick back lane romp and had TOO much fun. Here is proof of concept. Note. The idle is happening with the throttle blades 100% closed. I swear I'm going to get fake plastic hemi-spherical caps made that you can snap on your flat top bells so you don't have to be embarrassed every time you open your hood... And no laughing at the roof rack or the mack-tack paint job.... Edited December 14, 2017 by zKars 1 Link to comment https://www.classiczcars.com/topic/59088-510-sus/?page=2#findComment-537422 Share on other sites More sharing options...
Stanley Posted December 14, 2017 Share #20 Posted December 14, 2017 Saw this today, not much information but something about modifying flat tops for racing. https://www.zdriver.com/forums/240z-280zxt-s30-s130-tech-tips-275/carburetor-differences-20083/ Link to comment https://www.classiczcars.com/topic/59088-510-sus/?page=2#findComment-537423 Share on other sites More sharing options...
Patcon Posted December 14, 2017 Author Share #21 Posted December 14, 2017 They sound good Link to comment https://www.classiczcars.com/topic/59088-510-sus/?page=2#findComment-537431 Share on other sites More sharing options...
Captain Obvious Posted December 14, 2017 Share #22 Posted December 14, 2017 12 hours ago, zKars said: Note. The idle is happening with the throttle blades 100% closed. I swear I'm going to get fake plastic hemi-spherical caps made that you can snap on your flat top bells so you don't have to be embarrassed every time you open your hood... I know you know this already, but the idle is supposed to happen with the blades completely closed. That's one of the common ways that people who don't understand the flat tops screw them up. As for being embarrassed when you open the hood, I've got a better idea. Do what I did. You've got a lathe, right? ROUND TOPS!!! 2 1 Link to comment https://www.classiczcars.com/topic/59088-510-sus/?page=2#findComment-537446 Share on other sites More sharing options...
zKars Posted December 14, 2017 Share #23 Posted December 14, 2017 Jolly good! Wouldn't have imagined there would be enough meat to do that. I'll see if that's an option on these miniature 38mm wonders. Link to comment https://www.classiczcars.com/topic/59088-510-sus/?page=2#findComment-537450 Share on other sites More sharing options...
240260280 Posted December 14, 2017 Share #24 Posted December 14, 2017 CO is my hero! 1 Link to comment https://www.classiczcars.com/topic/59088-510-sus/?page=2#findComment-537458 Share on other sites More sharing options...
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