Datsun L20b: 44 Products

Bestsellers
DATSUN 620 L20B DGEC ELECTRIC CHOKE EMPI CARB KIT- BRAND NEW
Carburetors
$100.00
Datsun Nissan 510 620 Polished L16 L20B Valve Cover
Other Parts
$69.99
Datsun 510 620 L20B L16 L18 Manifold Stud Kit NEW NOS
Other Parts
$22.99
68-73 Datsun 240Z 510 Roadster 5 speed L16 L18 L20B trans bellhousing USED
Other Parts
$75.00
Datsun 620 Truck 510 610 521 L16 L18 L20B New Weber DCOE 40 Dual Carburetors Kit
Other Parts
$1,199.99
DATSUN NISSAN 510 610 710 L20B TIMING CHAIN KIT NEW!
Cylinder Heads & Parts
$59.99
Datsun Nissan 510 620 Truck L16 L18 L20B NEW Header
Other Parts
$215.99
Datsun 510 521 620 L16 L18 L20B Weber Carb Conversion w/ Polished Manifold
Other Parts
$399.99
Datsun Nissan L20B 620 510 Weber 32/36 Custom Rising Sun Air Cleaner Filter NEW
Other Parts
$48.99
Datsun 510 620 Truck L16 L18 L20B NEW Coated Shorty Square Port Header
Other Parts
$319.99
Cannon intake manifold for Datsun L16/ L18 / L20 / L20b - CLEAN!
Intake Manifold
$50.00
Datsun 510 620 L20B Performance Electronic Distributor
Other Parts
$269.99
via eBay

Datsun 1600 L20B with Twin Webers

Video

The Datto finally roars back into life with the new engine

via YouTube

You Ask We Answer

FAQs

Q:

When is exhaust gas supposed to flow into the BPT/CAC valve on a 1979 Datsun l20b?

There is a tube on the part the EGR valve bolts to that goes up to the base of the BPT/CAC valve where the exhaust is supposed to push while the vacuum pulls from the top and that is supposedly going to gate the vacuum into the EGR valve so more exhaust can flow into the intake.

Is it supposed to flow:

a) always;

b) when the engine is cold?

c) When the engine is warm?

d) during accelleartion?

e) during decelleration?

f) during idle?

g) during highway speed travel?

etc...

The tube was missing on my 620 pickup when I bought it, but now it is gone and before I replace it I want to know if it is going to function properly.
(asked by kevinfish on February 09, 2162)

A: Corrosion is a big problem with those tubes, exhaust gases eat them up on a regular basis. They went to a backpressure transducer to better regulate the flow of exhaust gases into the intake manifold (NOX control) during cruise conditions and upon medium to hard acceleration (when NOX formation is at it's peak).

It will modulate the flow as it was designed once you install the tube, it may not be working at all without it. (answered by bmwrider001 on February 09, 6642)

A: Corrosion is a big problem with those tubes, exhaust gases eat them up on a regular basis. They went to a backpressure transducer to better regulate the flow of exhaust gases into the intake manifold (NOX control) during cruise conditions and upon medium to hard acceleration (when NOX formation is at it's peak).

It will modulate the flow as it was designed once you install the tube, it may not be working at all without it. (answered by bmwrider001 on February 09, 6642)
via Yahoo Answers
Datsun Fairlady
Datsun Manifold