My Datsun Fairlady Z (Rebuilding a Japanese Classic)

I have a great level of respect for you! Unfortunately my experience lies in RBs, so I'm unable to give you any meaningful advice on L types, I can only wish you the best of luck and express my desire for you to detail your build as you go!
 
I have a great level of respect for you! Unfortunately my experience lies in RBs, so I'm unable to give you any meaningful advice on L types, I can only wish you the best of luck and express my desire for you to detail your build as you go!

Thanks Husky! I appreciate the support and encouragement!
Are you rockin' an RB Z, by any chance? :P
20, 25 or 26?
 
Thanks Husky! I appreciate the support and encouragement!
Are you rockin' an RB Z, by any chance? :P
20, 25 or 26?

Hah! it's certainly a project in the works - but no, I have an RB25 R33 Skyline :)

The next build will be an RB25 280Z, far cheaper and less desirable than a 240 so I won't be as afraid to experiment.
 
Hah! it's certainly a project in the works - but no, I have an RB25 R33 Skyline :)

The next build will be an RB25 280Z, far cheaper and less desirable than a 240 so I won't be as afraid to experiment.

Dang, I've always wanted a Skyline...but unfortunately, the laws here forbid them. How long have you had her for? I would love to see some pictures!

When I was looking for a Z to work on, I went for the 280z for multiple reasons, and I'm glad I did. For one, everyone and their mother has owned a 240z. It became really difficult to find one that wasn't molested or hadn't been abused over the years. Secondly, the 260's and 280's are a bit more rare than the 240's and had a few more design improvements that the 240 lacks. Lastly, since I originally didn't see a need for using the L series motor, I figured I'd go with the car that had a more powerful engine to begin with, so that I got the most power without having to spend money on the L.
Now that I'm doing the rebuild, I'm glad I stuck with an L28.
 
Dang, I've always wanted a Skyline...but unfortunately, the laws here forbid them. How long have you had her for? I would love to see some pictures!

When I was looking for a Z to work on, I went for the 280z for multiple reasons, and I'm glad I did. For one, everyone and their mother has owned a 240z. It became really difficult to find one that wasn't molested or hadn't been abused over the years. Secondly, the 260's and 280's are a bit more rare than the 240's and had a few more design improvements that the 240 lacks. Lastly, since I originally didn't see a need for using the L series motor, I figured I'd go with the car that had a more powerful engine to begin with, so that I got the most power without having to spend money on the L.
Now that I'm doing the rebuild, I'm glad I stuck with an L28.

You can find photos of my R in my own thread but this is how she sits currently

10379751_894841850531595_519492391461173606_o.jpg


I bought her in November but only began working on her earlier this year - About to respray White, just need little things like Ganador mirrors and new quarter panels so I'm not painting her twice.

The L28 is a brilliant motor, they react well to turbocharging and a carby turbo is fantastic, if a bit risky - in all scientific measurements an injector set up is the better option - but in classic cars it just causes them to lose their soul IMO.

It's a shame so many people treat them as disposable so it's refreshing to see someone build one up as a homage to tuners back then and what a "great car" was at the time - as I said I can't put into words the respect I have for you for going for this option!

If I'm honest I prefer the styling of the 280Z too, it's a bit boxier than the 240 and to some not nearly as pretty - but 240s are so sought after that finding one that someone hasn't added their own flare to has become increasingly difficult.

In NZ, the 280Z is far more common and considerably cheaper - your average 240 will go for 10g plus while a 280 can be had for as low as 3k - RUNNING.
 
Last edited:
You can find photos of my R in my own thread but this is how she sits currently

10379751_894841850531595_519492391461173606_o.jpg


About to respray White, just need little things like Ganador mirrors and new quarter panels so I'm not painting her twice.

The L28 is a brilliant motor, they react well to turbocharging and a carby turbo is fantastic, if a bit risky - in all scientific measurements an injector set up is the better option - but in classic cars it just causes them to lose their soul IMO.

It's a shame so many people treat them as disposable so it's refreshing to see someone build one up as a homage to tuners back then and what a "great car" was at the time - as I said I can't put into words the respect I have for you for going for this option!

If I'm honest I prefer the styling of the 280Z too, it's a bit boxier than the 240 and to some not nearly as pretty - but 240s are so sought after that finding one that someone hasn't added their own flare to has become increasingly difficult.

In NZ, the 280Z is far more common and considerably cheaper - your average 240 will go for 10g plus while a 280 can be had for as low as 3k - RUNNING.

That's a sweet ride! I'm very jealous! She looks like a blast! I'll check out your post! Hoping to see some more "under the hood" mods :)

Everyone I've discussed getting power out of my L28 that hasn't been Eiji or Rebello has been trying to convince me to just "slap a turbo" onto my L28 and be done with it. It's a proven practice. I know Z owners who are pushing well over 400 ponies on their L28T's. Power, however, isn't my goal. It's delivery.
Personally, I've never driven an NA L28 built to the same level as where I am going with it, but it has been done and I've never heard any disappointing results from it. My current stock L28 screams wonderfully between 4-5.5k RPM. Whenever my friends ask to get a ride, they all say it sounds more like a Ferrari than a Datsun...and it really does. Having those Triple Weber Carbs, a ported head, high lift cam and a bored motor, combined with all other things I mentioned, is really, really going to bring the inner Vintage racer out of anyone behind the wheel. Once I'm done with it, hopefully, I'll make others think twice before dropping a 302 in these.
 
That's a sweet ride! I'm very jealous! She looks like a blast! I'll check out your post! Hoping to see some more "under the hood" mods :)

Everyone I've discussed getting power out of my L28 that hasn't been Eiji or Rebello has been trying to convince me to just "slap a turbo" onto my L28 and be done with it. It's a proven practice. I know Z owners who are pushing well over 400 ponies on their L28T's. Power, however, isn't my goal. It's delivery.
Personally, I've never driven an NA L28 built to the same level as where I am going with it, but it has been done and I've never heard any disappointing results from it. My current stock L28 screams wonderfully between 4-5.5k RPM. Whenever my friends ask to get a ride, they all say it sounds more like a Ferrari than a Datsun...and it really does. Having those Triple Weber Carbs, a ported head, high lift cam and a bored motor, combined with all other things I mentioned, is really, really going to bring the inner Vintage racer out of anyone behind the wheel. Once I'm done with it, hopefully, I'll make others think twice before dropping a 302 in these.

Well that's just it, turbochargers are a quick and easy way to make power but the fact remains they'll never sound nor feel like an N/A..

I definitely agree with you, a well built N/A motor will always have true soul and a roar like nothing else :)

As for my car, incidentally under the hood mods begin this month! Full rebuild from the ground up then I need to decide which route I take.

But your build is a true inspiration, I'm dying to get my hands into a classic Z all over again! the Z32 isn't really doing much for me anyhow.
 
Well that's just it, turbochargers are a quick and easy way to make power but the fact remains they'll never sound nor feel like an N/A..

I definitely agree with you, a well built N/A motor will always have true soul and a roar like nothing else :)

As for my car, incidentally under the hood mods begin this month! Full rebuild from the ground up then I need to decide which route I take.

But your build is a true inspiration, I'm dying to get my hands into a classic Z all over again! the Z32 isn't really doing much for me anyhow.

Well, well, well! Let the RB mods, commence!
You have a Z32, as well? We've got 3 of them. Two NA Z's (mostly stock) and a Twin Turbo Z32 with a Stillen built motor. How is your Z doing?

I'm glad that I'm not alone in this build, though. I met a lot of naysayers throughout the planning of this build, but I stuck to my guns and I'm going for it. Happy to hear that there are still purists out there who wouldn't have it any other way.
 
Well, well, well! Let the RB mods, commence!
You have a Z32, as well? We've got 3 of them. Two NA Z's (mostly stock) and a Twin Turbo Z32 with a Stillen built motor. How is your Z doing?

I'm glad that I'm not alone in this build, though. I met a lot of naysayers throughout the planning of this build, but I stuck to my guns and I'm going for it. Happy to hear that there are still purists out there who wouldn't have it any other way.

Pretty well actually, picked it up for a steal at a 1 dollar reserve auction too! Even came on adjustable suspension, TT injectors and ECU and aftermarket headers.

It's on sale right now however, I just don't feel anything from it unfortunately - really fun to drive and a surprising amount of power but it's just not the car for me sadly, too much bulk.

I totally understand, I was actually tempted to undergo a supercharger build on my RB merely because it's never been done before, but the cost compared to the results just isn't justifiable unfortunately.

Pure L28s are severely underrated, I hope people start changing their minds before there are none left with EFI or chucked in the bin.
 
If some motorsport tuners can get 400 NA horses out of Volvo's originally 2.3l 4banger by boring and stroking it to 3.2l, getting over 300 out of L28 should be piece of cake.
 
The new Kameari Pistons are en route!

To put things into perspective, combined with the longer high-performance rods (139 vs 130mm), 6 of these pistons and rods will have the combined weight of about 3 of the stock ones. The new pistons have a much shorter profile and also have valve cutouts, allowing room for longer valves for those higher lift cams.

27.0mm CH + DSI rods (139.5mm) + LD28 (41.5mm) = 208.
Rod to stroke ratio: 139.5/41.5=3.36



Right: Stock flat-top piston from a P79 Head
Left: Kameari Piston

IMG_4681.jpg


IMG_4677.jpg
 
Impressive figures for sure! I think it's about time I begin assembling parts for my forged motor~

Thanks bud. I find it much easier and more motivating to work on my own motor when surrounded by gents who won't quit nagging about their own....that being said, I'll be sure to keep updating my thread to ensure you won't get lazy with your build! :cheers:

Still looking for that RB build thread :rolleyes:
 
Very nice, indeed! I have only one question though. What are you planning to do with her? I see you're ditching the EFI system for carbs.

My goal for this car's build is to re-construct the Z as if it was part of everyone's favorite super car group of the 1960's. You have your Jags, the Porsches and Ferrari's, etc. The car has the styling, and I can assure you it packs the handling when modified properly, but it never had the powertrain to be even remotely competitive with those cars. The Fairlady was a "every man's sports car" that was suppose to be cheap and reliable.

I figured I'd start off with the engine. The motor I am building for this car packs a much bigger punch and performs much, much better than the stock motor. My key emphasis is on "flick your toe to reach 4k-RPM" type of responsiveness, but to also keep the reliability factor that made these motors so popular, hence all the lightweight and forged components. This is very possible, considering that for almost two decades, these L-Series motors were the only high=performance capable engines easily available in Japan, which means these motors have been through every transformation possible back home, much like how Americans know all the ins and outs of their beloved V8's.

I have never been a fan of the stock EFI system in these cars, and quite frankly, these motors were built with carbs on the drawing board. I've driven many of these old Z cars, most of which have been stock, that use the original SU carbs, and the difference is night and day in terms of responsiveness and feel. The power curve isn't as consistent compared to the EFI system, however, the Triple Weber carb setup I am going for will deliver that power beyond anything the EFI system has to offer.

Besides, who doesn't love the sound of three carbs opening up at 6,000RPM? ;)
 
Alrigt then. I'll put it on my tab at Harry's. :P

Nice to see the build coming along well. 👍 I'll be keeping an eye om this thread.

Haha, I always wondered how they got those parts so quick. I guess teleportation is quite popular in the Japanese shipping industry.

Thanks for the support! This is gonna be a fun build! I wish I could speed it up a bit, though :P
 
So what is your vision for the car? How do you want it to turn out?

Cosmetically, more like a racer than a road car. Much like how the 250 GTO's and GT40's were styled in the same sense.

I took a couple of shots of the Bob Sharp 280Z at the Monterey Historics last week.
See how the flares are wider and arch around the wheels? That's the look I'm going for.


N62c5B3.jpg


As far as the rear goes, this is near identical to what I'm doing to my car, only the wing won't say "DATSUN" on it.
My wing (Named the "BRE" wing after Pete Brock's 240z) will just have the "Fairlady" badge in the right corner.
The exhaust will be positioned the same (just a tad bit further apart, though.) as the gas tank will be replaced by a fuel cell in the trunk.


oTKh6L0.jpg


The front is getting the "G-Nose" treatment with headlight covers.
This look was originally adapted onto the 240ZG, a special Japanese-only model that was sold to the public in order to allow the cosmetic changes in racing. It was basically a homologation.
This Z has the JDM fender flares with the bolt pattern. I won't have that on mine. I prefer the flushed look of the flares being part of the body.


IzuDrive-065.jpg
 
I will definitely be watching this build! When I have the skills and money I'd love to build up my BP motor for turbocharging.
 
Back