Datsun 280Z - 3.1L Stroker - First drive with new jets
Well, this is the first drive with the new jets in. The progression
circuit was causing trouble before. My idle jets were too small causing the
progression circuit to lean out. Remember: Just because it's CALLED an
idle jet doesn't mean it only controls idle. The other thing is that the
idle mixture screws don't affect the progression circuit, so if your idle
jets are too small, there is no getting around buying new ones.
Now it runs rich, though from here I have a ballpark to start tuning. It's
presently got 135 mains, 185 air correction, 60F9 idle jets.
Triple Weber DCOE's Launch
An old clip of my race prepped high compression L28, during testing with my
45mm DCOE's After a summer of tuning, I determined that my set of 40mm
DCOE's were the best match, and the car was 3 tenths of a second quicker
0-60 with them.
Fairlady Z MONSTER STROKER 3.1 (Part 1)
Fairlady Z Monster STROKER 3.1 Tripple Solex Carby @ Edward Lee's Japanese
Auto Centre 0297440539 OS Giken upgrades, brake upgrades, NISMO race seat,
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
240Z burnout (3.1 stroker)
A decent burnout with a taste of the car's sound at idle. Very quiet
muffler in general [Magnaflow], but it does allow the car to open up,
especially if you're pegging the rev limiter...
(Part 3) FAIRLADY Z MONSTER 3.1 TRIPPLE MIKUNI CARBIES
CAR is at Edward Lee's Japanese Auto Centre phone 0297440539
1976 Fairlady Z S30 3.1 Stroker L28 with tripple Solex/Mikuni carbie setup,
electronic ignition, overfenders, 15 inch Watanabies
Triple Weber Carbs, L26
These are triple side draft Weber carburetors on a Nissan L26 engine in my
Datsun 260Z. DCOE-40's.
1971 Datsun 240Z Weber triples.mov
From a set of junk Webers, cleaned, mounted, and tuned (sort of)...pretty
happy considering the "voodoo magic" reputation these have and the fact I
have never worked with them before.
240Z 3.1L Bore L28 Triple Carb Dyno Run --- 181.7rwhp
http://www.zsport.com -- Datsun 240Z with 3.1L Bore L28 Triple Carbs on our
Dynapack System at Z Sport Racing. Also has good sized SSR Longchamp
wheels, those are hard to come by in wider sizes with negative offsets!
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
2JZ Powered Datsun 280z battles 830whp Evo IX plus bonus race - TRC Throwback
*** TRC Throwback ***
Due to all the rain lately we have not been able to film much... this is
some of original races we've filmed a couple years back. Hope you enjoy a
little "throwback" entertainment while we hope this rain leaves us alone
for a bit... :)
2JZ Powered Datsun 280z battles 830whp Evo IX
Powerglide Supra tries to take on fast 690hp Evo