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PostPosted: Sun Sep 24, 2006 12:07 pm 
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Joined: Fri Jun 16, 2006 2:49 pm
Posts: 7
Ok I have recently re-built the bottom end of my l20b that is in my 1600.

It has been:
Over bored 60thou from standard
1.5mm dish pistons
molly rings
fully ballanced!

The Head:
L18 Peanut
match ported
mild cam 72deg (I think)

Induction:
Twin Delorto DHLA45
Datsun Performance Center Manifold
Ram Tubes

Exhaust:
Extractors
2.5" steel exhaust
Lukey Peformance Muffler

240k 5 speed

The motor has been run in bout 1000-1500km and I just put on the dyno this week!

74kw@The Wheels 228nm Torque

click here to see print out

Post your results here

I want to get an idea of the numbers people are getting from there motors!


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PostPosted: Sun Sep 24, 2006 1:01 pm 
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Joined: Mon Mar 29, 2004 6:58 pm
Posts: 173
Location: north brissy
this is my l20b

standard bore
1.5mm dish pistons
fully ballanced bottom end
280zx valve train

The Head:
U67 datrally/massive porting
match ported
cam 72deg

Induction:
Twin 40mm webers
redline ported Manifold
Ram Tubes

Exhaust:
Extractors
2.5" steel exhaust


blue bird 5 speed

got 73.8 hpatw on dyno dynamics shootout mode

this is about 3rd of the engines potential as it is WAY out of tune.

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1980 stanza - L20B (dead)
1984 longbed 1200 ute, ca18det powa!


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PostPosted: Sun Sep 24, 2006 2:55 pm 
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Joined: Fri Oct 03, 2003 2:48 am
Posts: 2185
Location: Melbourne, Vic
Just so we're all on the same page, the last thread like this was locked after some err.. aggressive discussion. :) Keep it civil and don't even TRY to make comparisons with anyone but yourself. OK? :)

Dave

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USA Daily: 2014 Nissan GT-R, very minor modifications for the track
USA Project: 1978 280Z, minor suspension upgrades, VK56DE conversion in progress. SOLD
AUS Race Car: 1973 240Z, L28ET, Autronic, GT35R. SOLD
AUS Project: 1972 1600, 3200km old S15 SR20DET, ground up rebuild. SOLD


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PostPosted: Sun Sep 24, 2006 9:05 pm 
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Posts: 381
Location: Perth Western Australia
Datsun 1000
A15 +40 thou
Mazda flat top pistons 10:1 comp
Roller rockers
Cam has 509th lift with 1.65 rockers
Everything balanced
Twin 40 DCOE
Extractors and 2.5" pipe. Single muffler

98.7hp ATW

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1969 Datsun 1000 wagon (Daily)
1969 Datsun 1000 coupe (Next project)
1969 Datsun 1000 coupe (Long term project)
1974 L34 Torana replica (In the build)
1976 SS Torana hatchback (Restoration project)
1976 Cadillac sedan deville (Pimp cruiser)


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PostPosted: Mon Sep 25, 2006 3:41 am 
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Joined: Tue Sep 21, 2004 4:16 pm
Posts: 140
Fj20e in 180b sss

It has been:
Over bored 40thou from standard (i think)
Flattop forgies, 10.5:1
fully ballanced!

The Head:
Just a polish
mild cam (not dialed in, still need adjustable gears)

Induction:
Standard fj20 efi

Exhaust:
Standard manifold
2" steel exhaust
Peformance Muffler

FJ 5 speed

The motor has been run in bout 1000-1500km when on dyno

76kw@The Wheels 312nm Torque (suspect dyno, or cam timing doing strange things)

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You've gotta love the sound of a n/a Fj at redline...


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PostPosted: Mon Sep 25, 2006 9:00 am 
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Joined: Tue Mar 04, 2003 4:10 pm
Posts: 339
1968 1600
L20b
Heaps of head work
10.5:1 comp
45mm webers on Datrally manifold (36mm chokes)
76 works cam
custom extractors with 2.5inch mandrel exhaust
3.9:1 R180

EFI Dynamics
Dyno Dynamics chassis dyno

92 rwkw @ 5600rpm

Link to dyno sheet
http://www.datsun510.com/photopost/show ... =1&cat=500

I sold the car to a mate who is looking at putting 40mm chokes in it and doing a few other things to try to get 100rwkw out of it.
Hopefully it will make it to the datnats next year

Jake


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PostPosted: Mon Sep 25, 2006 10:41 am 
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Joined: Sun Mar 23, 2003 1:45 pm
Posts: 3167
Location: Newcastle, NSW
Yeah, why not - someone's gotta come last :lol: Not sure on some of the specs as I didn't build it.

1970 1600
L18
A87 head with large ports, 44mm inlets and unknown cam.
Cam was dialled in by the dynotuner using a dial guage, drill and angle grinder :shock:
Looks like standard compression from the dish in the pistons
Twin SU's
extractors with 2inch exhaust and single rear "muffler" (which doesn't seem to actually muffle anything :roll: )
3.7:1 R160


69 rwhp - the quote from the dynotuner was " I usually get more out of these little Datsun motors"

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1970 ex Group A Rally P510
1971 P510
1972 180B SSS
1965 SP310 Fairlady
1966 SP311 Fairlady


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PostPosted: Mon Sep 25, 2006 11:58 am 
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Joined: Tue Mar 04, 2003 10:18 am
Posts: 759
Location: sydney
[EDIT] See next page...

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1971 Datsun P510 SR20DET 276 rwkW
2005 Mercedes AMG E55 350 kW
1969 Datsun P510 L20B EFI 95 rwkW
1975 Ford XB Fairmont GS Wagon 179rwhp
1980 Escort Van SR20DET unfinished
2002 Suzuki GSX1300R Hayabusa 185hp


Last edited by turbovan on Sun Nov 19, 2006 11:16 am, edited 1 time in total.

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PostPosted: Mon Sep 25, 2006 11:18 pm 
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Joined: Sun Feb 15, 2004 11:06 pm
Posts: 429
Location: Adelaide
When i got home with my 1600 i had a tidy up of the fuel maps done it was runnin rich all through the rev range as it was mapped without dyno facilities when built... didnt have much money left so couldnt get it runnin sweet...

1600 4 Sedan

Ingredients:
EMS Qi4
Stock S12 FJ20ET
3" Exhaust
Evo 7 Cooler
Stock T3
Stock Internals
Mazda Chain Tensioner


119kw 8.5psi :cry:

major boost drop issues at end of run, i think thats because of the pussy plastic bosch BOV leaking. Doesnt sound like much but still goes hard, needs about 5 hours on dyno to create new maps and was blowing out past every gasket hope i can get this higher when its back on the road

Simon


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PostPosted: Tue Sep 26, 2006 7:48 pm 
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Joined: Mon Sep 29, 2003 5:21 pm
Posts: 707
Location: Perth
FJ20 Turbo Datsun Sunny

Ported Head
Standard Cams
Standard Springs
Custom Inlet Plenum
High Mount Exhaust Manifold
GT2876r (with 36mm Restrictor)
PWR Intercooler
Boost Cooler Water Injection
Forged Pistons (9.5:1 comp) New JE's coming :wink:
Nitrided Crank
Shot Peened Rods
Dry Sumped
3" exhaust
Motec ECU

Running 18psi

267 rwhp (approx 200rwkw) at under 6,000rpm = lots of fun.

:D

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www.boostcooler.com.au

When the Flag drops........... the Bullshit stops
Go hard or go home!


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PostPosted: Tue Sep 26, 2006 8:46 pm 
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Joined: Tue Mar 04, 2003 9:19 pm
Posts: 653
Location: Perth WA
hey datman thats sweet you got a pic of that?
(more interested in the torque delivery than power)

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"Stroked is fun, but I'ld rather get blown"
"Redlines are merely suggestions"

my shrinking garage is down to.....
2x 1600s
1x GQ Tray back
1x 300ZX
1x FZR600


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PostPosted: Tue Sep 26, 2006 11:04 pm 
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Joined: Mon Jul 17, 2006 10:09 pm
Posts: 19
Location: Sydney
Hey Guys,

Just got a dyno done yesterday at SWR on my FIVE10 (formely SX-510)

SR20DET (standard internals)
25/40 Garrett Turbo
Microtech LT8-S
Front Mount
Bigger injectors, plus more

196rwKw at 17psi


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PostPosted: Wed Sep 27, 2006 5:38 am 
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Joined: Fri Oct 03, 2003 2:48 am
Posts: 2185
Location: Melbourne, Vic
MCDATO,

I thought the former SX-510 was living in Ballarat, Victoria these days?

Dave

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USA Daily: 2014 Nissan GT-R, very minor modifications for the track
USA Project: 1978 280Z, minor suspension upgrades, VK56DE conversion in progress. SOLD
AUS Race Car: 1973 240Z, L28ET, Autronic, GT35R. SOLD
AUS Project: 1972 1600, 3200km old S15 SR20DET, ground up rebuild. SOLD


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PostPosted: Wed Sep 27, 2006 11:52 am 
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Joined: Mon Jul 17, 2006 10:09 pm
Posts: 19
Location: Sydney
Hi Dave,

I bought it from the bloke in ballarat about 6 months ago in now reside's in sydney.


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PostPosted: Wed Sep 27, 2006 2:19 pm 
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Joined: Fri Oct 03, 2003 2:48 am
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Location: Melbourne, Vic
Ah, all good. :) Tis a beautiful car. Enjoy.

Dave

_________________
USA Daily: 2014 Nissan GT-R, very minor modifications for the track
USA Project: 1978 280Z, minor suspension upgrades, VK56DE conversion in progress. SOLD
AUS Race Car: 1973 240Z, L28ET, Autronic, GT35R. SOLD
AUS Project: 1972 1600, 3200km old S15 SR20DET, ground up rebuild. SOLD


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