Jump to content
SAU Community

Hanaldo's R34 Gt(T) Skyline Build


Recommended Posts

Straight out of the mould, no cleaning up yet:

10151258_10151922272472541_72065507_n.jp

1798414_10151922272582541_2069522104_n.j

Bit of residue from my release agent taking the sheen off it, so will polish it up later. Doing the second half today.

Link to comment
Share on other sites

Looks great!

How do you join the two halves?

Structural epoxy adhesive. Put both halves back in the mould untrimmed, put the adhesive on the joint and then bolt the two halves of the mould together.

Have now infused the other half and filmed it this time, so for those that are interested, this is how I make each half:

Link to comment
Share on other sites

Structural epoxy adhesive. Put both halves back in the mould untrimmed, put the adhesive on the joint and then bolt the two halves of the mould together.

Have now infused the other half and filmed it this time, so for those that are interested, this is how I make each half:

Damn thing didn't post:

https://www.youtube.com/watch?v=V71k0VNi-vU&list=UUrTGbs2Wk4T5hblvKod-5zQ

Also forgot to add, the total weight of the first half untrimmed is a hefty 112 grams, and takes all of my 85kg's standing on it without any distortion.

  • Like 1
Link to comment
Share on other sites

Second half is now also finished. Didn't take any photos, but it looks the same as the first half :laugh:

Bought a - 10 Speedflow fitting for the breather return as well. Just waiting for my aluminium flat bar to arrive so I can bond it in, drill and tap it, then bond the two halves together and trim em up! Once I can fit it into the car, I'll work out my plumbing route for the bov return.

Link to comment
Share on other sites

  • 4 weeks later...

Forgot to update this! I decided against the initial plan of bonding in a piece of 10mm aly flat bar as it proved too difficult to bend, instead decided to use a -10 Speedflow weld-on fitting which I scored and bonded in:

10152426_10151964043012541_2123605741419

1491654_10151964042952541_65765948613121
10169323_10151964043047541_5481263229588
I placed some woven fibreglass rovings into those grooves to help distribute any load placed on the fitting, then layed a piece of fibreglass over the top followed by an additional two layers of carbon fibre. The fibreglass is an important layer to separate the carbon and the aluminium, preventing galvanic corrosion.
10253919_10151964043132541_8646971665272
10171744_10151964043187541_5088805546055
Then bonded the two halves together using structural epoxy adhesive:
1978869_10151964043257541_78976412146382
Cleaned it up a bit, then polished:
10177941_10151964034577541_4907155736785

1606975_10151964034517541_59298124511784

10169446_10151964034442541_4053028006393

10262063_10151964034377541_8825594484521
Link to comment
Share on other sites

It has been done, many times, just not so much with Skylines which does surprise me a little bit. If you're interested, PM me, I would be happy to make more for anyone interested.

Link to comment
Share on other sites

Thought I'd post some photos of it all fitted up too:

603628_10151965716552541_522039540013891

10170918_10151965716797541_7351319015688

Had to be careful not to strain my back putting it in :P Final weight including the fittings is 193 grams. To give you an idea, the original stainless 3" pipe (which was also 100mm shorter) weighed 775 grams.

  • Like 2
Link to comment
Share on other sites

Thanks guys :)

The bond definitely has enough strength, that fitting isn't going anywhere. To be honest, I've probably completely over-engineered that. In case you're interested, the epoxy adhesive that I used, Araldite 2014, is a structural adhesive which by itself has a lap shear strength of 19Mpa, or 2755psi. Then in addition to that, I've used the fibreglass rovings in the grooves I cut into the fitting to help distribute the load, and the reinforcement (layer of fibreglass and double layer of carbon fibre) behind it will also help absorb and distribute load. Realistically, you would destroy the fitting well before you even overcame the strength of the adhesive let alone needed the laminate around it, but I like to be sure about these things ;)

I've PM'd you by the way mate :)

Edited by Hanaldo
Link to comment
Share on other sites

I'm not, I just make sure I do my research and know what I need to know before doing something :) Composites are just infinitely interesting to me, so I never stop researching :laugh:

Link to comment
Share on other sites

Thats some nice work there Marty well done mate! :D Next job should be that horrible hot side pipe with 767866218355 bends in it ;)

Edited by Mick_o
Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • The two diagrams are equivalent. The R32 one is just one sheet out of about 3 showing everything in the whole car all at once. And without knowing the functionality that occurs in the modules, they are both equally opaque.
    • 8v - 2.48ms 9v - 2.15ms 10v - 1.74ms 11v - 1.41ms 12v - 1.15ms 13v - 0.99ms 14v - 0.89ms 15v - 0.82ms 16v - 0.81ms I'm running these values on my RB20 Neo with 570cc Denso R35 stock jets and it's great. Also bought a set for my Legnum VR4, love these injectors!
    • Thanks for your reply,  Those blue/green wires running to the actuator aren't attached to anything, so I'm not sure how the central locking is still working. I will have to take a good look tomorrow, I don't have the car with me. After googling it seems like a pretty common aftermarket actuator which even uses the same green/blue wires the immobiliser required. i'll test everything tomorrow and if it's working i'll melt the solder, strip it, resolder and neaten it all up with some heat shrink. I don't have to understand it if it works hahaha I just don't want a fire/ short circuit. That R32 diagram looks more like a continuity chart? Can you make sense of this form the R34 manual? 10V is probably due to very flat battery, i'll recheck as well tomorrow, I did have to jump start it haha. Thanks again!  
    • So, COM doesn't mean comms. It means common. What common itself means will depend on the type of device. For a two directional actuator (ie, one that can push and pull on the same output rod) then the common will typically just be the earth connection. There will be at least 2 other wires. If you put 12V on one of the other wires, then the actuator will push. On the other 12V wire, it will pull. Can't quite make out what is going on with the wiring of your actuator. It appears to have several wires at the actuator plug, but there only appears to be 2 wires where its loom approaches the door control module, with at least one of the others cut off. I don't know these actuators off by heart. I'd have to look at a wiring diagram for one before knowing what the wires were about, and that's despite me having to replace one in my car not all that long ago. Just not interesting enough to have dedicated memory set aside for trivia like that any more. That actuator is an aftermarket one, not the original one, which probably died and was replaced. That might require some sort of bodge job on wiring to make it work. Although nothing should justify the bodginess of the bodge job done. As to the soldering job on the door module's loom plug. Ahhahhahaha. Yes, very nasty. Again, I cant tell you what any of those wires do. You'd need to study the R34 wiring diagram (if you can find one that shows the door module). I don't think I have any. I'd have to study the R32 diagram to start to understand what mine is doing, and again, even though I've had a problem with mine for the last 25 years (where it locks the passenger door when the driver's window reaches top or bottom of travel) I'm just not interested enough to try to to work it out. So long as it's not burning down, it's fine with me. Here's the R32 GTR diagram, which, confusingly, has rear door lock actuators and window motors on it!! As you can see, unless you understand the functions of the door lock timer and the power window amplifier, you'll never be able to work out how it works just from the diagram. I don't imagine that the R34 one is any better. Hopefully an R34 aware bod can help. FWIW, the two wires that are cut and joined look like they are both power supply - so hopefully it is not fatal to join them. The 10V you measured on the cut off free end of one of them is concerning. You'd expect 12V, and it might be the reason for the bodge job joining them together.
×
×
  • Create New...