Hey guys,

I have a navy blue 240Z that I purchased from a friend of a friend.

Originally brought with blown head-gasket I drove it with the stock L24 and flat-top SUs ( ) until the SUs decided to develop a flatspot from between 1% and 80% throttle. Holding the throttle anywhere inbetween those two resulted in massive overfueling, a black plume of smoke three lanes wide on the freeway, half a rear muffler and a subsequent police detective motivated pull-over.

After several trips to Ballarat going 100->110, clutch, roll, repeat, I sourced a supercharged L28 replacement. After some clutch dramas during the install I drove the car like this for 6 months or so while I gathered together parts for a turbo conversion.

Then 6 months ago (ok so it might be more than 6 months), after breaking the gear selector linkage on the 280z 5-speed in there I took the car off the road to do the conversion.

Details:

Car:
Model: 240Z
Year: 1973
Colour: BMW Navy Blue (crows feeted to hell)
Front bar: Not standard (?)

Engine:
L28: Block F54, Head P90
Compression: 7.4:1
Cam: Crow #58643 Intake: 212 deg 0.075" dur, 0.480" lift, Exhaust: 210 deg 0.075" dur, 0.495" lift
Pistons: Standard
Rods: Standard
Crank: Standard
Displacement: 2753cc (Standard).
Oil cooling: Earls thermostat to 235x147x50mm Serck cooler.
Balancer: Custom Chris Wood built using BMW Inline 6 balancer.

Driveline:
Gearbox: FS5W71C S14 SR20DET 5-speed
Clutch: 5-puck cerametallic with 1110kg pressure plate
Diff: Locked 3.54:1 R180
Driveshafts: Standard *cough*
Tailshaft: Shortened with Dana Spicer uni-joints

Fuel System:
Tank: Standard
Lift pump: Carter 110gph
Surge: CM510 alloy around 1-2 litres
EFI pump: Bosch 044
Fuel feed line: dash-8 (1/2" ID) line
Fuel rail: custom
Injectors: 460cc N/A S5 RX7
Regulator: Bosch adjustable rising rate

Control/Ignition:
Type: EFI - fully sequential injection
Computer: Autronic SMC v1.99-2
Distributor: Scorcher custom hall-effect
Leads: Sorcher 8mm induction
Coil: Bosch 716HEC transformer type
Ignition Module: Bosch

Induction:
Manifold: Standard 280zx EFI
Throttle body: Ford XF Falcon 65mm
Piping: 2.5" stainless
Intercooler: ARE 520x300x90 bar and plate
Turbocharger: 620hp Garrett GT35R (0.82 turbine housing)

Exhaust:
Manifold: Custom Ian Rowlerson: stainless, tigged, tuned length, split pulse collector, external wastegate flange
External wastegate: Sub-zero 55mm dumping via a 2.5" screamer pipe
Exhaust: 3" mandrel bent mild. No mufflers. Ends just behind diff

Suspension and Wheels:
Springs: Lowered Kings progressive all round
Shocks: Gabriel POS, don't ask me why.
Sway bars: Whiteline adjustables all round
Street Wheels: 15x6.5 Starion Turbo with matt black centres.
Street Tyres: 195/60R15 Yokohama AVS
Race Wheels: F: 16x7 R: 16x8 Simmons B45
Race Tyres: 225/50R16 Kumho Ecsta V70A

Performance:
Power: unknown as yet
0-100kph: ~4.8sec
Quarter Mile: 12.83 @ 115MPH
Calder: 1:11.6

_________________
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

Sweet ride dude.

I'm sure you will get around to posting all those pics again.
I'm not looking forward to doing likewise.

Nice quarter mile time.

Do you do any track work in it ?

Thanks mate.

Its currently sitting with a blown gearbox. But I bought an SR box yesterday so will do my best to get that in over the coming weeks. Also got a 3.54:1 locker diff to go in (curteousy of Cam McKinnon), and 16x8 and 16x7 rims which I'm hoping will fit somewhere.

Plan is to go track racing at the NDSOC Calder sprints on Oct 31st. Fingers crossed.

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

SR gearbox is in. I'm going to write a tutorial about it now, and we'll add pics when we do Mad1600s.

Locker is in, dunno if the ratio is a 3.54 or not because it revs up very quickly!

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

is the sr box strong enough?

_________________
Recommended Traders

Greg @ JustSR.Com
NixCars
Pro240c

Time will tell. The gears are around 17% wider than the 71A box. And the 71A didn't strip a gear, just shat a front bearing (which I replaced with a new one).

Heres hoping,

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

I'm bored so here are the other pics

_________________
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

Just noticed, what is the go with your windscreen wipers?

Wind resistance.

http://www.v8supercar.com.au//v8data/20 ... _20144.JPG

Plus I can because something is wrong with the intermittent wiper electrics.

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

what can you tell me about the history of those custom turbo manifolds?
how much did they set you back.
how they compare to standard 280zx-t manifolds.
some factors in their construction, etc...

fortunatey, i was lucky enough to score myself some 280zx-t manifolds about a month ago. although, considering that you have an F54 block with a P90 head (it's obvious that you got your head/block package from a turbo 280zx), so why did you get custom turbo manifolds instead of keeping with the standard factory turbo manifolds that would've come with the engine? -(unless taken off beforehand). wouldnt they've done the job well enough?

btw, what you've done with that 240Z is incredible. allot of planning and passion would've gone into that car for it to be the way that it is today. goodwork!

Stanzoid,

Thanks for the compliments but I can't really take too much credit. The heart of it, that exhaust manifold, was nothing to do with me. I bought it from a pro tig-welder who built it for his race car. He then decided to go a supercharged 1UZFE so I picked it up for AUD250.

It was a once off and I think he kinda regretted mentioning that price as soon as he had. I got very very lucky.

When I brought the engine home it was supercharged with an SC14 and didn't have any turbo manifolds (which is why I'm using the smaller L28E intake manifold).

The manifold I believe is much better suited to a larger turbo/high hp configuration. I think there is little to be gained if you're using the standard T3 which the US boys tell us is good for around 350-400hp.

Cheers for the compliments though. Just the beginning. Lots more to come.

Dave

Editted because Ders is a little girl.

_________________
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

Dave,

Nice Zed!, but in your signature you mention something about a 1600 with an S15 SR20DET.... Any progress on this?

Nice bunch of bannanas too! (if only they could all terminate in a nice big turbo!!!)

But they do...

_________________
Classic Auto Fabrications:
http://www.ozdat.com/forum/viewtopic.php?f=38&t=31659

http://www.lescollinsracing.com/

Lurch,

When I say ALL, I mean ALL collectively, instead of just yours... Sorry, it wasn't that clear


Maybe:
Wouldn't it be great if all bunches of bannanas finished in a turbo? (even the fruit variety...)

OK then Nik...

No more Drugs for you...

_________________
Classic Auto Fabrications:
http://www.ozdat.com/forum/viewtopic.php?f=38&t=31659

http://www.lescollinsracing.com/