RB25DET Datsun 240z

I want to build a replica of a friend's 1971 Datsun 240z with an RB25DET drivetrain swap.
http://inlinethumb59.webshots.com/43706/2273180680103926530S600x600Q85.jpg (http://rides.webshots.com/photo/2273180680103926530NUbNiZ)
http://inlinethumb27.webshots.com/38170/2831447040103926530S600x600Q85.jpg (http://rides.webshots.com/photo/2831447040103926530qtheyW)
This build will be similar to one I did a few years ago: Porsche 993TT brakes, Recaro seats, roll bar, Watts for Panasports, solder for mandrel exhaust, etc.
I am using the Hasegawa 240z kit body/chassis. Need to cut the hood, not too excited about that:frown: The paint is GoGreen, and testors has it. I have some BOVs, and turbos, fmic's to play with, but I hope that the "top-Half" engine looks convincing. LHD is from the Fujimi kit.
http://inlinethumb06.webshots.com/13765/2557732700103926530S600x600Q85.jpg (http://rides.webshots.com/photo/2557732700103926530qAHrqD)
ride height:
http://inlinethumb55.webshots.com/42358/2218112280103926530S600x600Q85.jpg (http://rides.webshots.com/photo/2218112280103926530HLDdKd)

Some videos I took of this beast, it is quick!
http://www.youtube.com/watch?v=PmcsuTk6lV4
http://www.youtube.com/watch?v=8MIeRVonEIM

Coooool, I'm diggin' this one. :sunglasse Beautiful car, great engine, and it looks like a terrific installation. (I'm planning to do something very similar myself- any further pics you'd care of that engine would certainly be appreciated.:tongue:)

What are you planning to use for the engine? Other than the badge, it looks alot like an RB26- if you wanted to go full engine, maybe Gio's forthcoming transkit would be a good option?

I'll keep an eye on this one.

Another great Datsun from you! I can't wait!!

this would be a nice thread to keep my eye on i got a datson stting on my table on the hold position cause i dont know if i want to leave it with the egine it came with or put a new one in ......cant wait to see how yours turn out

Oh yeah !
I'll be tagging along on this one too....love the Datto's. :thumbsup:
This should be a neat conversion, can't wait to see more. :naughty:

cheers
Greg

where does your friend live?i have seen that car before

mocking up the RB. I'll modify the timing cover to look like the Rb25, and I'll "massage" the RB26 intake manifold to look more like the Greddy one used.
The stock exhaust manifold heat sheild was also used, and the kit-supplied piece is great!
http://inlinethumb38.webshots.com/28133/2126747900103926530S600x600Q85.jpg (http://rides.webshots.com/photo/2126747900103926530DRFRsD)

Turbo help:
I've got this bag of turbo parts from scalemotorsports? years ago. Problemis I don't know how to make a turbo from them. They don't look like the larger turbo in the picture. What part is what?
http://inlinethumb10.webshots.com/42633/2726239600103926530S600x600Q85.jpg (http://rides.webshots.com/photo/2726239600103926530UKSaJJ)

I cut the hood I think I figured out how to mount the turbo and clock the outlet:
http://inlinethumb30.webshots.com/43549/2297274610103926530S600x600Q85.jpg (http://rides.webshots.com/photo/2297274610103926530DESutc)

Looks good :)

I am slowly making a bunch of engine bay parts.
The 1:1 has a Greddy intake manifold with a larger MAF.
I used a RB26 manifold, smoothed it cut off the piping.
made some runners from an old 240z exhaust manifold since they are squared off.
Injectors are from an SR kit :grinno:
I'll fashion the maf from the charcoal canistr/emissions thingy from a 280zx kit.
http://inlinethumb37.webshots.com/39844/2131997560103926530S600x600Q85.jpg (http://rides.webshots.com/photo/2131997560103926530JIUwZS)

Added the "Greddy" casting for the emblem:
http://inlinethumb35.webshots.com/30754/2591312920103926530S500x500Q85.jpg (http://rides.webshots.com/photo/2591312920103926530ueQkTB)
http://inlinethumb01.webshots.com/44224/2171936570103926530S500x500Q85.jpg (http://rides.webshots.com/photo/2171936570103926530bVjQPx)
After some sanding/painting:
http://inlinethumb53.webshots.com/41524/2108301570103926530S500x500Q85.jpg (http://rides.webshots.com/photo/2108301570103926530AySNYe)

I shot the Testors "Go Green" on the valve cover/ engine bay followed by clear and I am pleased with the result:
http://inlinethumb39.webshots.com/44390/2911108460103926530S600x600Q85.jpg (http://rides.webshots.com/photo/2911108460103926530wdXFGR)
The exhaust manifold heat shield got some chrome silver and the spark cover was bmf'd.
On the front cover the RB25 has a "bump" opposite the silver vtc solenoid thingy, so I cut a circular pice and blended it on, looks perfect imho!
Added some pulleys for the water/crank/alt:
http://inlinethumb18.webshots.com/43857/2082399100103926530S500x500Q85.jpg (http://rides.webshots.com/photo/2082399100103926530ZzmDvY)

With the body on:
http://inlinethumb44.webshots.com/44075/2449757690103926530S600x600Q85.jpg (http://rides.webshots.com/photo/2449757690103926530aEHWnJ)

Next is the injector/wiring on the intake...battery and it's wiring

that rb manifold looks good, im digging the green color too. your friend must be happy that your making a replica of his car??

Where did you get the RB25 engine?

I want to build a replica of a friend's 1971 Datsun 240z with an RB25DET drivetrain swap.
http://inlinethumb59.webshots.com/43706/2273180680103926530S600x600Q85.jpg (http://rides.webshots.com/photo/2273180680103926530NUbNiZ)
http://inlinethumb27.webshots.com/38170/2831447040103926530S600x600Q85.jpg (http://rides.webshots.com/photo/2831447040103926530qtheyW)
This build will be similar to one I did a few years ago: Porsche 993TT brakes, Recaro seats, roll bar, Watts for Panasports, solder for mandrel exhaust, etc.
I am using the Hasegawa 240z kit body/chassis. Need to cut the hood, not too excited about that:frown: The paint is GoGreen, and testors has it. I have some BOVs, and turbos, fmic's to play with, but I hope that the "top-Half" engine looks convincing. LHD is from the Fujimi kit.
http://inlinethumb06.webshots.com/13765/2557732700103926530S600x600Q85.jpg (http://rides.webshots.com/photo/2557732700103926530qAHrqD)
ride height:
http://inlinethumb55.webshots.com/42358/2218112280103926530S600x600Q85.jpg (http://rides.webshots.com/photo/2218112280103926530HLDdKd)

Some videos I took of this beast, it is quick!
http://www.youtube.com/watch?v=PmcsuTk6lV4
http://www.youtube.com/watch?v=8MIeRVonEIM

i have a magazine where that car is featured

That's right! Rob's Z was featured in Turbo magazine last year:
Great article, click to read:
http://inlinethumb32.webshots.com/40991/2927787070102308741S600x600Q85.jpg (http://rides.webshots.com/photo/2927787070102308741sdMPUN)

kaho- I tried making an RB25 from a RB20

Added an oil filter(nissan blue) and I am working on the Interstate battery:
http://inlinethumb36.webshots.com/4003/2651152540103926530S600x600Q85.jpg (http://rides.webshots.com/photo/2651152540103926530tyFVBp)

Grate work man!!!

Thanks!
Finished the battery itself, just need to wire it. Mocked up the intake manifold, need to modify the throttle body as it's too close to the fender:disappoin
http://inlinethumb18.webshots.com/10385/2510360710103926530S600x600Q85.jpg (http://rides.webshots.com/photo/2510360710103926530dMGGDK)

Sensational! always love following your builds, this should be another epic build.

Thanks for following!
I added the brake and clutch m/c's and plumbed them. The booster has a hole drilled so I can route the vacuum hose into the intake manifold later.
I will add a little flurescent highlighter to the reservoir caps to make them looked zinc'd, like the 1:1
http://inlinethumb57.webshots.com/43000/2360074530103926530S600x600Q85.jpg (http://rides.webshots.com/photo/2360074530103926530OyaVlz)

finished the battery!
I'm proud of the little grounding wire off the negative terminal cable:lol:
http://inlinethumb27.webshots.com/43482/2653230910103926530S600x600Q85.jpg (http://rides.webshots.com/photo/2653230910103926530rknHgW)
http://inlinethumb57.webshots.com/22584/2961326040103926530S600x600Q85.jpg (http://rides.webshots.com/photo/2961326040103926530RGrBRh)

reference:
http://inlinethumb34.webshots.com/42977/2831447040103926530S500x500Q85.jpg (http://rides.webshots.com/photo/2831447040103926530qtheyW)

Good work on the little ground wire. Thats an important wire too, I remember when that wire broke on my 1:1 240Z, all sorts of funny things start to happen. Whats worse was that it was at night when it did brake.....ah memories.......

keep it up!


:wave:

Nice work....LOVE'in that battery. :thumbsup:
You're well on your way to making a very convincing replica of the 1:1..:smokin:

Greg that means alot to me coming from the man with the uber Z build!

I did some work on the turbo.
Mounted/clocked turbine to compressor, added the coolant line:
http://inlinethumb31.webshots.com/17630/2880794250103926530S600x600Q85.jpg (http://rides.webshots.com/photo/2880794250103926530qRmHAM)
Then I made a downpipe out of solder, painted it black(coated) and tried to simulate the welding onto the compressor flange:
http://inlinethumb23.webshots.com/42390/2839726370103926530S600x600Q85.jpg (http://rides.webshots.com/photo/2839726370103926530OKvqyt)
Finally, I added a little detail I think Rob will be happy with, the wastegate plumbing!
http://inlinethumb21.webshots.com/45268/2885050690103926530S600x600Q85.jpg (http://rides.webshots.com/photo/2885050690103926530ciildW)
http://inlinethumb46.webshots.com/45293/2072708980103926530S600x600Q85.jpg (http://rides.webshots.com/photo/2072708980103926530oudfDD)

Fantastic job with the details.

I'm really enjoying watching this build and find it inspirational. In fact, this build is the main reason I got a 240z for myself...a truly gorgeous car.

One thing I'd like to comment on however is your engine bay. It could just be the lighting in the photos, but your wastegate/turbo plumbing looks to have a bit of a rough finish. In your reference photo, everything looks smoother but things like the two white bottles next to the turbo assembly appear to have flashing/mold lines still on it. Those close-up shots make it quite prominent but further away it looks ok. I just figured since you're detailing the engine bay so much it might be worth considering. Don't mean to "rain on your parade"...:)

i know i know I'm slacking...no magnifying goggles on this one!
good eyes I will try and clean things up

Looks nice !

Where did you get the RB25 engine?


He modded a RB26 from a Tamiya Skyline GT-R R32 kit.

He modded a RB26 from a Tamiya Skyline GT-R R32 kit.

Woops, sorry I didn't answer earlier. Actually the engine is from the Cefiro kit which has an RB20DET. I felt that this valve cover was closer to the RB25's.
The intake manilfold however is from the R32 kit's RB26.

The Cefiero comes with a complete RB20DET, not a top half motor?!?! That's it, I'm getting one. I need the wheels out of it anyway for my stock 240SX project.

Great work on this one, bro. I have been watching it, but just never commented. You have been doing such a good job, I didn't have anything to say that hadn't already been said by the time I got around to reading.

Nice project. I've got one S30 on hold, but with L24+turbo.

RSXSE240: The Cefiro kit comes with a half engine, I've got one I know. Hopefully You haven't got one yet just because the engine?

great project, look forward to more

I'm working on the interior now, flocking for the rear cargo area, rollbar, recaro seats, etc.
http://inlinethumb36.webshots.com/46563/2495018320103926530S600x600Q85.jpg (http://rides.webshots.com/photo/2495018320103926530hnrZZB)

Looking good mate. :cool: :smile:
Awaiting the next instalment of progress...:wink:

I started working on the intake/FMIC plumbing. Added a radiator fan and intake on the turbo. Tried different beds on the hotpipe and cold pipe to the throttle body, tricky to make things route through the radiator supports!

http://inlinethumb13.webshots.com/26956/2609701150103926530S600x600Q85.jpg (http://rides.webshots.com/photo/2609701150103926530EQqxMJ)
http://inlinethumb18.webshots.com/25809/2375836610103926530S600x600Q85.jpg (http://rides.webshots.com/photo/2375836610103926530vWerCm)

http://inlinethumb09.webshots.com/46024/2826957950103926530S600x600Q85.jpg (http://rides.webshots.com/photo/2826957950103926530vuNCPP)

looks real good mate,

keep on going with it.


Paul.

thanks!
I added the BOV on the intake side and a little hose on it. Put hose clamps on the rubber connector
I think I will re-do the air filter to be smaller and look like a K&N
http://inlinethumb10.webshots.com/44297/2465175160103926530S600x600Q85.jpg (http://rides.webshots.com/photo/2465175160103926530ppRBLs)
http://inlinethumb17.webshots.com/44560/2010902020103926530S600x600Q85.jpg (http://rides.webshots.com/photo/2010902020103926530ELHlCO)

I added the hot pipe, with welds, a heat sheild for the air filter, vacuum line for the BOV off the wastegate, and upper radiator hose with clamps:
http://inlinethumb36.webshots.com/24675/2105319580103926530S600x600Q85.jpg (http://rides.webshots.com/photo/2105319580103926530XqrSKE)
http://inlinethumb27.webshots.com/8090/2403869510103926530S600x600Q85.jpg (http://rides.webshots.com/photo/2403869510103926530twxJOl)

There is a hidden catch can for the radiator(just like on my roadster!), I will make that and start wiring the 6 injectors/fuel rail...stay tuned!

****Comments removed by moderators.****

Its coming together nicely! That engine bay is looking REALLY good.


Keep it up........





:wave:

That Is the worst model ever!
is it just me or are you just a bit :screwy::screwy:

do you mean as in brand, or are you saying his build??

looking good bro. loving the engine work. :evillol:

looking good bro. loving the engine work. :evillol:

he said it all today:runaround::rofl:..


Paul.

:screwy::screwy::screwy::screwy::screwy::screwy: :screwy:

wow, someone has some serious issues. stop hitting the pipe bro and mellow out. grow up.

aha im Jokin nice built waht rands the motor or did you scratch build it?

I tried to make simplified fuel injector wiring/plumbing

http://inlinethumb02.webshots.com/47361/2615180430103926530S500x500Q85.jpg (http://rides.webshots.com/photo/2615180430103926530zZUhHf)

-wired each injector,
-made a fuel inlet line and return line
-also added the brake booster vacuum to the intake manifold
http://inlinethumb26.webshots.com/44825/2287906270103926530S500x500Q85.jpg (http://rides.webshots.com/photo/2287906270103926530KCwKNh)
http://inlinethumb22.webshots.com/46549/2735112660103926530S500x500Q85.jpg (http://rides.webshots.com/photo/2735112660103926530dhCPvD)

Nice to see more progress. The engine is starting to take shape. Its going to be a beautiful replica. The fuel lines look spot on.

I like how you even got the weld in the "hot" intercooler piping. This is freaking awesome!

I like how you even got the weld in the "hot" intercooler piping. This is freaking awesome!

thanks for noticing!
i'll do the same for the mandrels on the exhaust sytem

really nice job on this project. rep +

thanks for noticing!
i'll do the same for the mandrels on the exhaust sytem


I still can't find what you guys are lookin at.... haha

I still can't find what you guys are lookin at.... haha

In the last set of pics he posted, rsxse240 is referring to pipe coming from the turbo compressor outlet (right side of the motor). You can see in the 1:1 reference pic, 675datsun's friend used several sections of pipe to make the intercooler setup, so there are noticeable welded sections. This is what he's replicated in the scaled version.

@ 675datsun- On that same note, it looks like you've replicated the transition sizing of the pipe as well. Great work. Can't wait to see it finished. :biggrin:

This is a beautiful build. I love your detail. I can't wait to see more!

found it. thanks

I added the valve cover decal, something I've never done before is print my own decals...it turned out okay.
Also added the breather on top, the warning label on the radiator cap.
In the last pic hopefully you see the "welds" on the hot pipe

http://inlinethumb05.webshots.com/11460/2943890120103926530S600x600Q85.jpg (http://rides.webshots.com/photo/2943890120103926530RPqiCb)
http://inlinethumb02.webshots.com/14145/2922998420103926530S600x600Q85.jpg (http://rides.webshots.com/photo/2922998420103926530jssNZp)
http://inlinethumb12.webshots.com/12299/2466337370103926530S600x600Q85.jpg (http://rides.webshots.com/photo/2466337370103926530vzjJhF)
http://inlinethumb18.webshots.com/46929/2872390370103926530S600x600Q85.jpg (http://rides.webshots.com/photo/2872390370103926530zlhRgy)

looking good, lots of work goin into that engine bay

very nice engine detail!

LOVE it. I'd like to learn from your build

Working on the dash, I added the old-school Auto-Meter memory tach, stock speedo and Defi gauges, a bit janky but it kind of works
http://inlinethumb25.webshots.com/45016/2051758010103926530S600x600Q85.jpg (http://rides.webshots.com/photo/2051758010103926530DnFIly)