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Thread: 20V quads on 16V head

  1. #1
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    Required items

    Silvertop 20v quads, complete if you can..
    Silvertop 20v TPS (hopefully you get it with the quads)
    Manifold adaptor eg – tecnotoytuning
    3mm vac hose (2m max)
    5mm vac hose (2m max)
    3mm t pieces/elbows
    5mm t pieces/elbows
    5-6mm barb fittings
    inlet manifold gasket
    JDM AE86 throttle cable?
    Acess to a drill press
    Tap/die set
    Small bit of sheet ally (to make a throttle cable bracket)
    Hacksaw/file (to cut/shape the ally)
    Steel cable, cable clamp from a bike shop (for accel cable)


    1. remove fuel rail/manifold/tvis (if fitted) etc from the head
    2. the manifold adaptor you have.. I'm going to use the T3 one for an example, the billet CNC machined adaptor, is a stunning manifold, I almost didn't want to put it on it looks soo good! use a drill press tap 4 holes in the bottom of the manifold, 1 in each runner, infront/behind the 3mm ones.. NOT beside.. you might not be able to get to the studs if you put them beside them.. then tap thread into the ally for the barbs you have chosen, nice and easy in ally.. this is to link together with the 5mm vac hose to act as a balance tube (much smoother idle) and as a very strong vac for the brake booster. [attachment=3362:attachment]
    3. The T3 one comes with 4 3mm fittings in each runner, as they are all separate I ran 3mm vac hose with elbows/t pieces linking them all up, and facing the firewall.. I used this to run the Map sensor as pic above
    4. make a small right angle bracket with 2 holes that bolt into 2 of the throttle bodies.. I just cut a U shape and used the throttle cablenuts to tighten either side of it.. you'll see the 2 holes I'm talking about.. there only small!
    5. bolt the throttles to the manifold.. make sure all the vac hose is hooked up.. use zip ties as hose clamps [attachment=3363:attachment]
    6. bolt the complete manifold on the head with the new gasket
    7. I used my JDM throttle cable, having a 4AGE in there you should have a similar length cable.. I just pulled it through under the pedal to the correct length as it was about 6 inches too long and used a grubscrew cable clamp from a bike shop as the new end on the pedal.. just leave the bit of cable hanging around there.. I did.. ha ha
    8. that's about it.. fine tune the length of the cable on the car..
    9. bolt on your injectors and rail to the head.. connect up the fuel lines..
    10. plug in your booster line and map line
    11. i had to rewire my TPS in reverse so it would read properly like so

    tps side > loom side
    brown > yellow
    Blue > red
    Red > Blue
    Yellow > brown


    12. start her up.. see how she idles.. the individual idle screws I didn't really touch.. nor the butterfly adjusment ones.. I just use throttle cable tension for idle speed..as long as you checked that they opened evenly on the bench.. adjust so they all move at the same time etc..

    [attachment=3364:attachment]

    the stock 4AGE ecu will run them ok.. but it will run on the rich side.. i didn't test an SAFC, eventually i just went straight to a aftermarket ecu using only TPS..



    Matty

    this has worked for me, and i am happy to answer any questions etc

  2. #2
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    ohh sorry, i blanked off all the little vac lines on the throttles bar 1.. i used that for the fuel reg..

  3. #3
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    dude that sounds H0T!!!!1

    well done...

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    agreed sounds crazy noice, name a nissan that sounds as nice

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    no gasket between quads and manifold?

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    yeah i was wondering that too.

    what trumpets/filters are you running? if any?

    Sounds sweeeeet, can't wait till mine are on!

    also... what is the part no for the gasket between the manifold and the head? or does this come with the manifold when you buy it from T3?

  7. #7
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    will it be ok to run an safc with a stock ecu? and still be not too rich?

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    the gasket between the quads and the manifold, was the stock 20v ones.. there little metal ones.. thats why i mentioned try and get a set, sorry forgot to mention why

    the inlet manifold gasket is just a smallport AE92 inlet manifold gasket.. $8 from repco, or comes in a VRS kit...

    the i made some trumpets and an air box, but i am now redesigning it in favour of silter socks

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    i really have no idea how an SAFC will work, SAFC's will only change fuel at WOT.. i geuss it would work.. try it?

  10. #10
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    very hot sound coming out of that

    quads & trumpets have been on my wish list for a while
    http://img530.imageshack.us/img530/731/43367425735d6c87ce7bo.jpg

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