These are my triple 40PHH Mikuni carby's that are for sale to suit a Nissan/Datsun L series 6 cyl.
They have been complety stripped, cleaned and rebuilt. Have custom made Ø36mm chokes and come with standard Ø32mm ones too.
The Cannon manifold has been ported to optimise flow.
Bolt on upgrade!!! Awesome bit of kit ;-)
1970 Datsun 240Z/L28- 7000rpm in first three gears - triple Weber 40DCOEs
Watch for the surprise at the end (!)...didn't get pulled though. See http://www.youtube.com/watch?v=RjpmkfdnNvI for the same engine with SU carbs...which is a 1983 F54 L28 w/P90 turbo head, 10:1 compression, 15lb flywheel.
The engines sound similar but the Webers have much more torque than the SUs, pull very hard in 1st and 2nd and easily to 7,000 in 3rd. I have a Centerforce 2 clutch now which make changing gears a tick slower compared to my earlier video however. The car is definitely faster through each gear with solid power to redline.
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 4-6 weeks of storage.
Datsun 240 Z super clean
This car belongs to my buddies dad, my buddy in the video also owns a 400 whp sentra SE-R and a Datsun 510 race car and a Ferarri Modena 360 check my other videos for the Ferarri
1972 Datsun 240z L28 triple mikuni 44h dyno run
Sounded awesome, a/f was good, putting out just 10+ hp over stock l28, and 15+ torque over stock curve. Stock l28 motor with MSD ignition. Perhaps another run with more advanced ignition timing in the future?
Prime & first start up of my new Nissan / Datsun L30, running triple 44PHH Mikuni carb's
Specs of my PMC assembled L28 (now L30) race motor-
* F54 block, race prepped
* P90 head, PMC porting
* Brand new 44PHH Mikuni carb's (Ø40mm choke)
* JE domed forged Ø89mm pistons
* Spool forged rods, 140mm long
* TWM inlet manifold and cold air intake
* ATI harmonic balancer
* Wade cam. PMC spec, 76° 0.59 lift
* Race prepped crank
* Recurved and mechanised Dizzy
* High volume oil pump
* ARP everything
* Stewart Wilkins adjustable cam gear, valve springs and high sided retainers
* AEM O2 wideband
* Lurchos baffled and winged sump
* NC block girdle
* Genie extractors/headers with 2.5" Exhaust
There maybe more, but can't think of it right now.
Now keep in mind, this is not finished!
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! :)
Datsun 280Z w/ L28 3.1L Stroker and Triple Webers
Here is a short video of the Z starting. Just got the idle working right tonight where before it wouldn't idle down. Throttle response is good though it goes lean. I have new jets coming to solve that issue.
Sorry for the crappy video. Can't find the cable I needed and so I had to use some 3rd party app to rip it. For whatever reason, it didn't do widescreen.
240z @ NCRC Thunderhill 4/30/10
Old-school doesn't necessarily mean slow-school. Datsun 240z w/ L28, triple Mikuni 44's, AZC brakes, GC coilovers, Toyo R888's. Car is a weekend/track toy driven to and from events. Recorded on an Aiptek GVS, 720p 60fps.
engine wouldnt run very well so i decided to put flattops in her. found the problem to be a cracked top ring on #3 cylinder. the finished engine will have new bearings and gaskets, junkyard p79 flattop pistons, comp cam 292s cam, n42 head rebuilt running off of ms2 with diyautotune harness and my own homemade (BANR) relay board. im gonna street tune the AFR with LC-1 wideband and after that prolly Dyno tune the ignition for POWER! banr style