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Thread: RB30e+t turbo selection

  1. #1
    Registered User ls400x's Avatar
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    RB30e+t turbo selection

    Yes I know I'm a pioneer but forum threads from 2002 on calaisturbo are hurting my brain. wwpfd for turbo selection?

    Application: VL standard RB30e and standard 4sp auto and 25 spline open 2 pinion diff and 14x6" rims. I'm hoping to get a cast iron RB30et exhaust manifold which I believe is T3 flange and will provide clearance to the block/engine mounts for a GT35 size turbo. Probably will use the Megasquirt I have sitting around. Occasional street sleeper duty only.

    Power: Whatever the the standard pistons/trans/diff will live with without being reduced to swarf. 200rwkw?

    I would prefer internal wastegate for pipework simplicity. The cheaper the better but would spend around $1k for a "nice" unit. No need to allow for future big power levels.

    Precision 5858? Chinese GT3071? This Kinu TD06 appeals to me with integrated WG and BOV plus box of fittings: http://shopping.kinugawaturbo.com/ki...housing-1.aspx

  2. #2
    Registered User E-Z's Avatar
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    Falcon gt3540, 10mm spacer on the stock manifold. Can push 300kw on the stock internals.
    caprice nugget.

  3. #3
    Registered User ls400x's Avatar
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    Sounds good to me! Will the trans and diff live though? I figure the 14" skinny tyres and open diff will be a bit of a fuse.

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    TJzone TJ's Avatar
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    With 14's you are going to be blazzzzzzzzzzzzing one tyre... a lot of the time.

    If you lock the diff you'll snap axles on the regular.
    #teamtremolo
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  5. #5
    MacGuyver stockymcstock's Avatar
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    The jatco will start to slip unless it's been built a bit, increased line pressure and such for over 180rwkw is needed. Aside from that the 25 spliner may survive up to 250rwkw because it will just blaze one tyre and not grip.

    To go quicker you need to build the jatco a little and get a 28 spline turbo-spec LSD or Detroit

    Falcon turbo is absolutely perfect.

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  6. #6
    Registered User ls400x's Avatar
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    A rolling burnout is a rolling burnout....right?

    I got laughed out of the Holden wreckers here for asking if they had a 28 spline VL diff so I feel like they are going to be out of my budget.

    I'm comfortable digging into the trans a bit as long as it's DIY.

  7. #7
    Registered User INFLYT's Avatar
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    My second last VL was a RB30E+T.
    In my opinion, turbocharger options for this arrangement are;

    Standard T3 (can be hard to come by nowadays due to age, but wont kill the rest of the car straight away)

    JPC T3 "secret/big" high flow (looks like nothing has been modified on the hot side, but can make huge grunt)

    Ford/Garrett GT3540 (readily available, but needs fucking around to make it fit)
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  8. #8
    anyone? MRMOPARMAN's Avatar
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    Grab an lsd from an EA2-ED fairmont ghia or equivalent fairlane/LTD. V8 even better as they are 4 pinion. Heaps around and they are usually around $50 from the self serve wreckers. Custom axles arent expensive.
    Quote Originally Posted by Rdyno
    70ynu has to be the most retarded cunt here. "Help me please" me "you need to remove your head" him "fuck off cunt I'm to lazy fuck off out of my thread you told me to do something I don't want to do so you're a cunt fuck off can some one please tell me an easier way???"
    Quote Originally Posted by Tripper
    Its a tight battle between you and rogercordia for the most retarded member on here, thou i think you have it by 5 window licks

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    Registered User E-Z's Avatar
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    if youre ok with single peggers, get a VN -VS diff, tthey are 40mm wider but are 28 spline, just run a mini spool if its for skids., just replace autos as they break.
    caprice nugget.

  10. #10
    are hairy Dogsballs's Avatar
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    Vl turbo diff be $2k lol. I'll sell you my minispooled vk borgy for $1700

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    Quote Originally Posted by 50RTD View Post
    Dave, have you uploaded the data from the carby?

  11. #11
    Registered User gtrboyy's Avatar
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    28 spline axles for these are crazy prices..sometimes easier just go 9" or shortened b/w for big tyres.

    Cheapest way is narrowed down vn long axles to suit vl diff...long axle not sure it would last with a spool or abuse.

    Got lsd centre out of coon diff also.
    an easy fix is get a mate to drive in front of you at 60 then 80 then 100 and mark in on your speedo with some liquid paper.

  12. #12
    Registered User INFLYT's Avatar
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    I thought he was asking about a turbocharger???

  13. #13
    Registered User E-Z's Avatar
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    Quote Originally Posted by ls400x View Post
    Sounds good to me! Will the trans and diff live though? I figure the 14" skinny tyres and open diff will be a bit of a fuse.
    ...
    caprice nugget.

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    Gt42r. You only dose once
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  15. #15
    Registered User ls400x's Avatar
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    $2k diff is wayyy outside of my budget for this. Driveline strength is very relevant to turbo selection because I don't want to have to pour many house repayment tokens into a VL.

  16. #16
    Down with ma homies Greg Rust's Avatar
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    25sp LSD is fine with normal tyres, it's only when you put 275 ET streets and have 400rwhp that they break. I have personally tested this; twice.
    xw Falcon 393 full race cam, NGK spark plugs.

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    Registered User INFLYT's Avatar
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    Quote Originally Posted by ls400x View Post
    $2k diff is wayyy outside of my budget for this. Driveline strength is very relevant to turbo selection because I don't want to have to pour many house repayment tokens into a VL.
    Just as I thought...
    With my previously aforementioned car, I went 25 spline L.S.D as recommended.
    My VL Turbo before that one had a locker. Don't do that.

  18. #18
    anyone? MRMOPARMAN's Avatar
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    Coon lsd and cut down vn axles wouldnt cost a few hubge. No need for $2k turbo diff
    Quote Originally Posted by Rdyno
    70ynu has to be the most retarded cunt here. "Help me please" me "you need to remove your head" him "fuck off cunt I'm to lazy fuck off out of my thread you told me to do something I don't want to do so you're a cunt fuck off can some one please tell me an easier way???"
    Quote Originally Posted by Tripper
    Its a tight battle between you and rogercordia for the most retarded member on here, thou i think you have it by 5 window licks

  19. #19
    are hairy Dogsballs's Avatar
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    Commodore borgy axles are tapered. Here in lies the issue and why they aren't cheap these days. Original 28 spline axles go for good money. Especially at vl width. Mini spool the 25 spline and just replace axles when they break
    Quote Originally Posted by 50RTD View Post
    Dave, have you uploaded the data from the carby?

  20. #20
    あなたの母親の肛門 Shifty's Avatar
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    Sending you a PM bruddah

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    Registered User smithbro's Avatar
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    My old 30E+T was amazing with a cheap T04E. Came on boost almost instantly and ran 16-18psi without any issues other than the motor breathing a lot (like all RBs). I will likely run the same setup on the current shitter I'm building too.

  22. #22
    Down with ma homies Greg Rust's Avatar
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    Wasn't the cheap hotness for these to advance/retard the cam one tooth?
    xw Falcon 393 full race cam, NGK spark plugs.

    Quote Originally Posted by Monza View Post
    I've never considered myself the type of guy to eat arse but I am currently reviewing that policy

  23. #23
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    Also thinking of doing this with one of my VL's but was thinking a .82 rear housing 3076 turbo or would I be better off with a gt35 and .63 rear? ( car is auto) Really dislike turbo lag especially after owning the G6E turbo where response was almost instant and pulled 280-300 rwkw, but a little concerned the smaller displacement will make the gt35 a fraction laggy. Thoughts?

  24. #24
    Boldy going nowhere rolin7's Avatar
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    Just picked up a r31 with 146k, so this is relevant to my interests. is nistune the go for ecu department, or upgrade?
    Pain is temporary, quitting is forever - Lance Armstrong (drug cheat)

  25. #25
    are hairy Dogsballs's Avatar
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    Link seem to be a very popular plug and play ecu, reasonably cheap as well

    See a lot of guys using the barra turbos, internal gate and all with good success. Cheap to upgrade to 61mm billet front wheel or change to external gate. Still fit low mount with spacer
    Quote Originally Posted by 50RTD View Post
    Dave, have you uploaded the data from the carby?

  26. #26
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    Concerned about the big rear housing though 1.06 on a 3ltr too big? Car doesn't have a converter so possible lag monster. I do have a 1.06 gt35 off an xr6 but it has a .7 front cover for even more lag. Would like 280-300rwkw, would a billet wheel 3076 do this? Have a Microleb and X6 ign box with 800cc injectors and cast manifold with external gate to do it with.
    Last edited by richzx; 18-04-18 at 07:13 AM.

  27. #27
    are hairy Dogsballs's Avatar
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    I hear ya. You could choke it down with small exhaust. Bit tricky on stock convertor, not sure how the lockup clutch will like that hp
    Gt35 will do it easy, might be laggy. Could go a china something smaller

    Call proboost or raceequipped and chat with them
    Last edited by Dogsballs; 18-04-18 at 08:28 AM.
    Quote Originally Posted by 50RTD View Post
    Dave, have you uploaded the data from the carby?

  28. #28
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    I;m now thinking billet wheel 3076 with 1.02 rear housing, this should get the power goal but at what boost?

  29. #29
    Boldy going nowhere rolin7's Avatar
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    Quote Originally Posted by Dogsballs View Post
    Link seem to be a very popular plug and play ecu, reasonably cheap as well

    See a lot of guys using the barra turbos, internal gate and all with good success. Cheap to upgrade to 61mm billet front wheel or change to external gate. Still fit low mount with spacer
    I like the link ecu idea, need a airflow meter upgrade though as these ones are so old and unreliable.

    Can you put a smaller rear housing on a barra turbo?
    Pain is temporary, quitting is forever - Lance Armstrong (drug cheat)

  30. #30
    are hairy Dogsballs's Avatar
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    Why not?

    Sent from my Nexus 6 using Tapatalk
    Quote Originally Posted by 50RTD View Post
    Dave, have you uploaded the data from the carby?

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