3.1L 240Z triple weber carb tuning (w/ new Stahl headers)

A collection of short clips / butt Dyno runs while tuning the triple Webers on my 3.1L 240Z. Open Exhaust. Unfortunately, I didn't have the benefit of an O2 sensor / AFR. All in all, I was pretty pleased with the final results, the new headers have really opened up the head's flow potential. Sounds good, too! :)

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untuned and unmuffled idle, 240Z 3.1 stroker
Quick demo of the new race headers (Stahl), at no point does the engine rev above 3k rpm (despite how it sounds at 1:25). Other coincident upgrades include titanium valve spring retainers, single valve springs (outer springs only) that the cam was profiled for, and a crank/damper/flywheel balance for 10,000 rpm. And yes, that's coolant on the ground during the idle portion. Evidently I didn't tighten one of the thermocouple housings all the way. Oops. Between moving and other logistical challenges, I barely had the time to get the new race motor installed and minimally operational before sticking it back in the trailer for 6 months of storage, after which the engine seized. :'(





Datsun S30 240Z 3.2 Stroker getting sideways
3.2 stroker motor. Youtube ruined the video quality. This was a HD quality video. Youtube did this to many many of my old videos. Sucks balls.





3.1L 240Z vs. the Ozark Mountains
Some [conservative] horseplay in my 1971 3.1L 240Z before putting my new race motor away for the winter. This is NOT a performance driving video, just some fun on an awesome road. This is first time I've driven the road, so I'm a little more confident after 3:00. (I found it on Google Earth then trailered my car there.) Some highlights, since it's not exactly a concise video: 1:55 downhill stretch, crossing Beaver Lake 2:40 more aggressive driving begins 4:00 scared myself a bit 4:40 traffic encountered 5:00 engine vs. open highway Referenced walk-around video of my L6 motor: http://www.youtube.com/watch?v=by_gtw18cLo





280Z Triple Weber 45 - First Start
UPDATE - After 3 months of light use, this engine failed. The rockers kept coming off the posts, and eventually pistons made contact with the valves. 3000$ engine down the drain... stay away from ebay rebuilt engines! New Rebello 3.0L has taken its place - See my other videos.




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