HomeForumsTechnical – GeneralEngine304 Intake Manifold Swap

This topic contains 160 replies, has 10 voices, and was last updated by Profile photo of Immortality Immortality 8 years, 1 month ago.

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  • #18490
    Profile photo of doz10
    doz10
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    Member since: February 9, 2016
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    he’s still the king of minis, that’s how I know of him

    #18527
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    VRSenator065
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    • VR Senator LSx454 1960 Kombi (project) 1921 Nash Hot Rod (future project)

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    I actually have a book he did way back when on nitrous injection.  Must have been not long after he was in the staes as it was with US V8s.  Must get that out and have another read :good:

    #18537
    Profile photo of Immortality
    Immortality
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    Member since: August 31, 2015
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    Even now Vizard the Wizard is still at the forefront of engine development.

    Many moons ago I worked with an engineer who built and raced Mini’s using Vizards know how, he won his class (classics) each year and almost won outright against the open class cars.  The man has beat many a V8 around the Pukekohe race track.

    #18538
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    VRSenator065
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    Sounds like you have done some cool stuff mate.  What was it back in the day, LCB exhaust and a 2084 head or something were the go?

    #18539
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    cava454
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    Member since: February 20, 2015
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    Vizard is up their with Smokey Yunkic also?

    #18547
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    VRSenator065
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    Vizard is like a the thinking mans Smoky Yunick ;-)

    #18629
    Profile photo of Immortality
    Immortality
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    Member since: August 31, 2015
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    Well the manifold is at Marsh Motorsport to have the injector boss’s drilled to suit, should have it back early next week hopefully.

    Also have a black billet thermostat housing on its way.

    Unfortunately the missus just had a puncture that has stuffed an almost brand new treat and it’s costing $265 to replace so that has eaten the HPC coatings budget :cry:

    Vizard is like a the thinking mans Smoky Yunick

    Yeah, fairly much.

    • This reply was modified 8 years, 3 months ago by Profile photo of Immortality Immortality.
    #18728
    Profile photo of Immortality
    Immortality
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    Member since: August 31, 2015
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    Got my manifold back today from the machinist :-)

    Went to go and get my 1000cfm throttle body only to find out my local supplier is out of stock and there is a 6-8 week wait for new stock :-(  Waiting to hear back if we can get one in a little quicker.

    Sometime this week at work I will machine up a couple of support bars for the fuel rails so that they can be fixed in place, once that is done I’ll have to dummy up for the TB height and then work out if I need a drop base filter or not.

    Gave the Senator some love and cleaned up the intake faces on the heads etc, just need to run a tap through all the threads and it’ll be ready to have the manifold bolted down.

    Picked up some new shiny bolts from my local engineering shop too  B-)

    • This reply was modified 8 years, 3 months ago by Profile photo of Immortality Immortality.
    • This reply was modified 8 years, 3 months ago by Profile photo of Immortality Immortality. Reason: add
    • This reply was modified 8 years, 3 months ago by Profile photo of Immortality Immortality.
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    #18733
    Profile photo of VRSenator065
    VRSenator065
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    Only thing i will say (and have always thought) is Holden really used the ugly stick big time when they designed the fuel rails on these!

    #18735
    Profile photo of Immortality
    Immortality
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    Member since: August 31, 2015
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    Yeah but they did the job and didn’t look to bad on the banana’s manifold as they were fairly much hidden under covers…..

    Some time in the future I may upgrade to a short body injector, grab some billet fuel rails and tidy it all up but for now I’ll just clean up these rails and a bit of a polish should have it looking 100% better.

    • This reply was modified 8 years, 3 months ago by Profile photo of Immortality Immortality.
    #18737
    Profile photo of VRSenator065
    VRSenator065
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    Yea sorry wasnt meaning to bag yours!

    #18738
    Profile photo of Immortality
    Immortality
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    All good, it’s bloody filthy……

    I think that it was definitely function over form when these were designed.  From what I have seen these flow well enough unfortunately with this style of intake they do stand out like dogs bollocks.

    #18740
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    cava454
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    Polish those rails and do a -8 cross over. Will make them look magic.

    #18846
    Profile photo of Immortality
    Immortality
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    Member since: August 31, 2015
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    I stripped the fuel rails and will take em to work tonight to clean/polish if/when time allows.

    Does anybody know what size fittings to use to do a -8 cross over?  figure I can tap the ends of the fuel rails to suit what ever is required.

    Thanks

    #18847
    Profile photo of Hoopstar
    Hoopstar
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    Member since: June 10, 2016
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    Any fittings will need to be welded on as there’s not enough material in the fuel rail to tap.

    By the time you’ve bought the fittings and had the rails modified, it’d be cheaper to use something like this:

    http://tinyurl.com/glgvwwv

    $160 – cheap and cheerful but quality unknown..

    or

    http://tinyurl.com/j7k4sv6

    $180 – Chinese made but better quality and used by lots of guys.

     

     

    #18848
    Profile photo of cava454
    cava454
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    Any fittings will need to be welded on as there’s not enough material in the fuel rail to tap. By the time you’ve bought the fittings and had the rails modified, it’d be cheaper to use something like this: http://tinyurl.com/glgvwwv $160 – cheap and cheerful but quality unknown.. or http://tinyurl.com/j7k4sv6 $180 – Chinese made but better quality and used by lots of guys.

    You can tap the rails. Mate of mine used to do it. Pretty sure he could do up to -10

    #18849
    Profile photo of Immortality
    Immortality
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    I was considering those Aeroflow billet fuel rails.

    There does seem to be plenty of meat in the rails, just depends on the size of the fittings going into it I guess (that’s why I was asking what most folks are using?).

    It would seem (looking at those billet rails) that you would also need to modify the fuel lines/FPR to suit?

    • This reply was modified 8 years, 3 months ago by Profile photo of Immortality Immortality. Reason: add
    #18852
    Profile photo of exec24
    exec24
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    Member since: April 8, 2015
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    Polish those rails and do a -8 cross over. Will make them look magic.

    Just how mine are done :good:

    Actually mine are -6

    • This reply was modified 8 years, 3 months ago by Profile photo of exec24 exec24.
    #18855
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    cava454
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    I was considering those Aeroflow billet fuel rails. There does seem to be plenty of meat in the rails, just depends on the size of the fittings going into it I guess (that’s why I was asking what most folks are using?). It would seem (looking at those billet rails) that you would also need to modify the fuel lines/FPR to suit?

    When I looked into rails it wasn’t worth the piss farting around to do the reg. i went stock rails with welded Bungs (before all this slip in stuff), I used stock reg so it mounted easily, then got Blake from SC to polish them. He actually did a write up for them in the mag haha

    Some companies even make a slip in adapter that slides in like the factory metal hose, if tapping or welding a Bung on isn’t your thing

    #18857
    Profile photo of VRSenator065
    VRSenator065
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    ^wonder if Blake ever finished that VN? weapon he was building, that was mental…

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