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Thread: GAS - 260z RB26 Build Thread

  1. #1
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    GAS - 260z RB26 Build Thread

    Decided now was as good a time as any to start a build thread (since all the cool kids are doing it) to try and keep myself honest and motivated (it is not going to be quick).

    I bought the car below back in late 2006 (photos from first outing with the blokes).









    I had been casually looking at the adverts for a good year and nothing decent had come up for sale, then all of a sudden this and 260DET’s cars came up for sale at the same time. Should have bought his back then, but as we say hindsight is a . . ..

    The owner had just built an L28et engine for the car.


    I drove it like this for probably 18 months until the megasquirt computer gave up the ghost. Since I did not want to put another cheap computer back in, the car sat under the carport for 12 months while I saved for parts and worked out what to do. In all honesty I probably blamed the computer a bit too much, as the installation was probably the biggest contributor to how the car ran (it would run right sometimes then rich or lean other times.) The wiring had no screening, a lot of places where insulation was melting through due to no heatsheilding near exhaust and then there were poor solder joints covered in insulation tape.

    So at the end of 08 I put a new computer in and redid the engine loom with a fresh flying loom and all new connectors/devices, LS1 coils, deleted distributor etc. I also got the dashboard recovered, played with some electronics and put in FD RX7 seats.









    http://forums.hybridz.org/index.php/...54#entry815654


    http://forums.hybridz.org/index.php/...04#entry741304


    Ran much better with the new tune until end of 09 when I started playing with having the computer control the boost and this happened.

    Blown headgasket.


    Thought, no worries, will pull head off, take a look, replace gasket, button it all up and drive it while building a real engine for it. Was going to go all out with an L28et, larger cams, bigger turbo, head work, blah blah blah. Well when pulling it down I started to notice more and more things wrong with the engine as I went. Pistons seemed undersized in bore (bore still crosshatched but piston was wearing on skirt and piston was quite loose in bore). Little ends were really tight (rod would stand up all by itself), balancer was welded together (and welded 10 degrees off, no wonder power was down, was running 10deg less then I thought). Crank keyway/woodruff key was shot, bearings were shot blah blah blah.

    Cylinder 3 standing up






    So it was at this stage that my mates brother said “lets just chuck a RB26 in there”. T which I replied, "No, I am feeling nostalgic about the L series engine, I might just build another" (had already started buying parts). He proceeded to give me a blank stare followed with, "Let me get this right, you are nostalgic about an engine that is no longer the original displacement (2.8 instead of 2.6), is now fuel injected (all s30 were carb) and is turbo charged (all s30 were NA)".

    So at the start of 2010 I bought this.





    Got the engine sitting on mounts around April, then work stopped as I had to build a shed before my wife had our first child. Around July car was brought back to my new shed where it sat and nothing really happened for the next 6 months (had a lot of money and time spent on the shed).

  2. #2
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    So end of 2010 and start of 2011 work started on the datsun again. I built a new transmission mount (300zx transmission with RB26 bellhousing) and crossmember (this took far to long, but I am glad I didn't rush it, because I changed my mind almost as many times as I changed my underwear and am glad with the final way I made it).

    http://forums.hybridz.org/index.php/...33#entry923033

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    And just made mk3 of the engine mounts this week. Mk1 mounts were ok, but the engine had not been lined up straight when we put it in, would have been fine as the angle was not that great, but thought I could do better. Mk2 engine mounts started last weekend and were still not good enough so spent a couple of nights last week building mk3. I am happy with how the engine sits now.











    http://www.viczcar.com/forum/index.p...ic,9250.0.html

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    So the list of big things to do now.
    - Build mount to Lower nose of diff (and change mount from below diff to above diff) by 2.5 degrees to oppose/match engine/transmission angle.
    - Get a driveshaft
    - Build an exhaust manifold
    - Build a sump, either modify the RD28 sump or the R200 sump or build a new one from scratch
    - Install my CV joint rear axles
    - Intercooler and piping
    - Radiator/fan/plumbing
    - New loom
    - Brake upgrade (thinking r32 gtr calipers with custom mount and got to find a disc to work)
    - Suspension rebuild/upgrade
    - Tear down of engine and rebuild

    Well that list should keep me off the streets for a while. Some of the big ticket items like the engine work might get put off to another build.

  5. #5
    Chopped BigMuz's Avatar
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    Extremely cool car.

    Did they run out of 2jzs?
    Retard Honour Wall.
    Quote Originally Posted by Sloth View Post
    Rob Sloth Young did i ask for your opinion? no. i only want it for a paddock bomb. go play with traffic.
    Quote Originally Posted by Fondles View Post
    you stupid fucken imbicle.
    Quote Originally Posted by Fondles
    your are a fucken idiot of the highest level.

  6. #6
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    Ha, yeah no 2JZs left in the country. I would have had to overnight one from Japan.

  7. #7
    Printer cunt Spoonfed's Avatar
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    I do like this!

    but why didn't you go and LS1 and wrap the 260 in RX7 panels?

  8. #8
    Registered User Xman's Avatar
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    240 and 260z's = winning!

    Good luck with the project.

  9. #9
    Registered User boostin31's Avatar
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    Those ignition leads for the ls1 coils, are they just standard ls1 leads or custom jobbies?

  10. #10
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    Thanks guys.

    Ignition leads were custom jobs from the below guy. They only cost $60 for the 6 of them (cheaper then my 4AGE leads from repco).
    http://www.qldignitionleads.com/

  11. #11
    Loving teh titties.. carcrazy's Avatar
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    Very nice work. Are you going to paint the engine bay when you've finished converting?

    Also the welded balancer is a work of art, i've never seen that before!
    Quote Originally Posted by Einstein
    The definition of insanity is repeating the same action and expecting a different result

  12. #12
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    Cheers mate, yeah cleaning the engine bay of excess holes and painting is on the cards.

    Also the welded balancer is a work of art, i've never seen that before!
    I used a few different adjectives when I found that one. A few explicative adjectives.

  13. #13
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    engine needs to be rotated

    sweet though

  14. #14
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    engine needs to be rotated
    Ha, cunt.

  15. #15
    Registered User boostin31's Avatar
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    My mates got a split pulse 6boost manifold hes selling that would fit quite nicely in there if your interested!

  16. #16
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    My mates got a split pulse 6boost manifold hes selling that would fit quite nicely in there if your interested!
    Dammit, why did you have to put that up. I wanted to make my own, but for the right price I am not sure I will be able to resist. Will P.M my email.

  17. #17
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    the 6 boob may hit your engine mounts

  18. #18
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    nothing a big hammer and some beer wont fix

  19. #19
    Registered User boostin31's Avatar
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    You wouldnt know what to do with 6 boobs pete

  20. #20
    Registered User boostin31's Avatar
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    But yes might have to mod that engine mount to make it fit, not difficult!

  21. #21
    Registered User FEAR's Avatar
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    What end up happening with all the L28 parts lol?

  22. #22
    Smoke em if you got em! LINCOLN's Avatar
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    Cool car and cool cat (a bengal right?)

  23. #23
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    Thanks, but no, the cat is just a moggy.

  24. #24
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    What end up happening with all the L28 parts lol?
    I sold most of the parts. Made about enough to buy the half cut.

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    Someone on another forum (yes I have been cheating on you all) asked about where my gearstick would come through and how angled it would be since my engine is now standing up straight. See photos below. Will see how it feels before I decide if it needs a bend in it.








  26. #26
    Don't tase me BRO! methodmania's Avatar
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    Quote Originally Posted by garvice View Post
    Someone on another forum (yes I have been cheating on you all) asked about where my gearstick would come through and how angled it would be since my engine is now standing up straight.
    Yep, that was me that asked. You aint the only cheater around

  27. #27
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    Ha, I'll keep your secret if you keep mine.

  28. #28
    are hairy Dogsballs's Avatar
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    please fuck of those alloys.

    otherwise nice ride!!

  29. #29
    Registered User Turbo 351's Avatar
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    Nice work!

    What Turbo are you planning to run on it?

  30. #30
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    please fuck of those alloys.
    I think I might keep them just to piss you off. HA. But since you asked nicely, these are what I would really like to eventually have on the car.
    http://www.ccwheel.com/wheelprofiles...hp?id=Classic4


    What Turbo are you planning to run on it?
    I was originally thinking either a T04z or a gt35r with something like a 1.06 rear housing on it.

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