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. :'(





2.8L Triple Webers
Just a little fun video. 1st part is during a cruise thru The Valley of Fire near Las Vegas, the 2nd part was shot to show the Exhaust sound and LACK of valve train noise...





Datsun S30 240Z 3.2 Stroker getting sideways
3.2 stroker Rebello Race motor. 44 MM Mikunis, Scotty the Z King.





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




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