What are the compression ratios? is the TS-SUNNY Race Spec Engine from the 80s?
I remember Feral stating his Formula Atlantic A13 made 163hp and some 170hp.

I wonder what a full spec A13 with todays efi, rocker improvements, friction coatings, isotropic finishing, roller cam setup and other technology could make?

There is 775kg vs 638kg for LZ vs A series thats 137kg difference!
would that be just the running gear?! donk, suspension, brakes, box and diff?

I'd be very dubvious of the figures a12grunt posted of more power at much lower revs. Just doesn't stack up. That equates to 109.6lb-ft at peak power - and the peak torque would be higher again. It's simply not realistic to think they found a way to make ~20% more torque than the others.
A mistake in the quoted rpm is the most likely problem.

Just a small correct, the KPB110 displacement of 1598cc should read 87.8mm bore with a 66m stroke.

Quote:
There were 2 categories i.e. TS-a and TS-b. TS-a I believe catered for up to 1600cc whereas TS-b catered for the bigger cars e.g. Skyline GT-R, Mazda Savanna RX3 etc. The TS-a class at the time was dominated by the Toyota Celica 1600 GT until the Sunny LZ engine was permitted by the FIA for use in 1973.

The Nissan Heritage site is great, has some good basic information about all the classic Datsuns.

I am currently collecting all the parts to build a replica of the No. 2 Sunny Excellent pictured above. I have a 1200 coupe shell and the engine, Now I just need to try to find kpb110 front panels, tail lights and dash.

It's going to take a while but hopefully it should be a fun project and very unique and rewarding once finished.

This is the TS-SUNNY Race Spec Engine.

BASE ENGINE
NISSAN A12 Type

TYPE
2 Valve, Inline 4 Cylinder, Water cooled, OHV

DISPLACEMENT
1303cc

BORE x STROKE
77.0×70.0mm

COMPRESSION
12.5：1

PEAK POWER OUTPUT
170PS （8000rpm）

CYLINDER BLOCK
A12 (From Nissan Cherry)

CYLINDER HEAD
GX Type

HEAD GASKET
TOMEI POWERED　0.8mm

CAMSHAFT
TOMEI POWERED 　78°7.75

VALVE
Intake 40.0mm, Exhaust 33.0mm

VALVE SPRING
TOMEI POWERED Double Spring

VALVE LIFTER
NISMO Hollow

PUSH ROD
TOMEI POWERED

ROCKER SHAFT
TOMEI POWERED

ROCKER ARM
Modified from Standard Bush

PISTON
FORGED MMR

CONROD
Standard with WPC Treatment

CRANKSHAFT
Standard with Modified Oil Galleries

CRANK PIN BEARING
NISMO

CRANK BEARING
NISMO

OIL PUMP
Race Spec

OIL PAN
TOMEI JIDOUSHA

VALVE PLATE
TOMEI JIDOUSHA

WATER PUMP
Modified from Standard

INTAKE MANIFOLD
TOMEI POWERED

EXHAUST MANIFOLD
TOMEI POWERED

CARBURETOR
WEBER 45DCOE９

AIR FUNNEL
TOMEI POWERED

IGNITION SYSTEM
NAGAI DENSHI CDI Crank Pickup Without Alternator.

SPARK PLUG
NGK 4304A-10

PLUG CORD
NAGAI DENSHI

OIL
WAKOS Synthetic

FLYWHEEL
TOMEI JIDOUSHA

CLUTCH COVER
NISMO

CLUTCH DISC
NISMO

FUEL PUMP
NISMO

TRANSMISSION
Race Spec F56A

DIFF
NISMO H150 LSD

FRONT SPRING
CUSCO

REAR SPRING
RACE SPEC

FRONT SHOCK
ＴＲＤ

REAR SHOCK
TOMEI JIDOUSHA

BUSH
JODOUSHA KOUBU HIROTA

FRONT WHEEL
TOSCO 8J-13

REAR WHEEL
TOSCO 9J-13

FRONT TYRE
ADVAN Springs 205-500-13

REAR TYRE
ADVAN Springs 225-500-13

BREAK CALIPERS
NISMO MK63 Bench Rated

BREAK PADS
LUVIX

BREAK SHOES
LUVIX

FRONT SPOILER
TOMEI JIDOUSHA

REAR SPOILER
TOMEI JIDOUSHA

ROLL CAGE
GARAGE ALTEA

cool finds l18_B110

Also the Ts cup had different classes limited by their engine capacities.So i wonder which class the lz14 beasts ran in.
il try and look up the tomei ts cup specs too.
The Ts cup 1300cc are my inspiration for the coupe build.I love those 1300cc beasts.

PitRoad prepped B310 TS Cup specs

http://www.superstreetonline.com/featuredvehicles/sstp_1105_1974_nissan_sunny_b310_1979_nissan_sunny/viewall.html




979 Nissan Sunny B310 (#22 car)
Owner Yoshimitsu Ogura

Power 162hp @ 9100RPM, 96 lb-ft @ 8300RPM

Engine 1303cc normally-aspirated A12 engine; Pit Road Type-1 ported/polished/milled cylinder head, titantium valves, racing valve springs, guides, seals and retainers, racing push rods, hollow lifters, racing rocker arm kit, A race type camshaft, head bolts, metal head gasket, H cross section connecting rods, forged piston set, reinforced timing chain w/adjustable tensioner, racing baffled oil pan, racing pulley w/ignition pickup kit, tachometer gear box kit, 77mm bored block, oil journal expansion, racing crankshaft, racing header; Webber dual 48mm side draft carbs; Tomei intake manifold and adjustable cam sprocket; NISMO bearings, oil cap, NISMO/Earl’s oil cooler, aluminum radiator; Ultra plug wires, Ultra MDI ignition box; ATL FIA certified fuel cell; Wako gold ignition coil

Drivetrain Vintage old-stock Hewland 5-speed close ratio dog-engagement gear box; Pit Road customized TRD AE86 LSD

Footwork & chassis Pit Road full pillow ball adjustable coilover; Safety 21 12-point chromium molybdenum steel rollcage

Brakes Nissan President MK63 front brake calipers, Nissan Silvia rear caliper; custom lines and brackets by Pit Road

Wheels & tires 13X8/9" RS Watanabe original magnesium wheels; 205/50R13 front 225/50R13 rear Advan race slicks

Exterior Restored FRP front fenders, flares, doors, hatch, carbon-fiber hood; removed underbody coating; Tomei front lip and rear spoiler

Interior Sound deadening and any excess paneling removed; fire suppression system; Personal steering wheel; IMSA racing bucket seat; Willans FIA harness; Omori gauges

Full story in the above link.

the rest of that site is worth a browse too.
I found it by chance this morning while googling Datsun stuff.

Datsun Sunny Excellent Coupe (1973 : KPB110)
http://www.nissan-global.com/EN/HERITAGE/datsun_sunny_excellent.html



Specifications

Overall length / width / height
3,995/1,515/1,355mm

Wheelbase
2,340mm

Tread (front/rear)
1,255/1,245mm

Curb weight
775kg

Engine
LZ14 (16-valve DOHC), ECGI

Engine Displacement
1,598cc (87.8 dia. x 66)

Engine Max. power
147kW (200PS)/9,400rpm

Transmission
5-speed

Suspension (front, rear)
Strut, leaf rigid

Brakes (front, rear)
Girling 4-pod, drum

Tires
205/515-13

Note:Competition car
Winner of the 1973 Japan GP (TS race)

--------------------------------------------------------------------------------

Datsun Sunny 1200 Coupe GX-5 (1972 : KB110)
http://www.nissan-global.com/EN/HERITAGE/datsun_sunny_1200.html



Specifications

Overall length / width / height
3,825/1,615/1,290mm

Wheelbase
2,300mm

Tread (front/rear)
1,240/1,245mm

Curb weight
638kg

Engine
A12 (4-cyl. in line, OHV), 1,298cc

Engine Max. power
107kW (145PS)/8,500rpm

Engine Max. torque
127Nm (13.2kgm)/7,600rpm

Engine Carburetors
Solex 44PHH (x2)

Transmission
5-speed

Tires (front, rear)
7.0/21.0-13, 7.4/21.8-13

Note:Competition car
TS race specifications (1975 specification engine)