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Building an Intake?

This is a discussion on Building an Intake? within the External Engine forums, part of the LSx Technical Help Section category; Originally Posted by hot93rod i live in elizabethtown, and i have an extra intake manifold for my '95 lt1, let ...

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    cutting and welding mark21742's Avatar
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    Quote Originally Posted by hot93rod View Post
    i live in elizabethtown, and i have an extra intake manifold for my '95 lt1, let me know if you need to use that. I'm interested to see how this will turn out, so let me know if i can help you
    i went by your area this morning on my way out to NJ and back

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    Quote Originally Posted by suede View Post
    i get bored easilly, ADHD doesn't help, and the gf is 4 hours away... i got nothing better to do....
    ADHA and COD here lol i feel your pain

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    mark21742 Quote:
    Originally Posted by hot93rod
    i live in elizabethtown, and i have an extra intake manifold for my '95 lt1, let me know if you need to use that. I'm interested to see how this will turn out, so let me know if i can help you

    i went by your area this morning on my way out to NJ and back

    So i take it that mercersburg is west of here then?

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    Quote Originally Posted by hot93rod View Post
    i live in elizabethtown, and i have an extra intake manifold for my '95 lt1, let me know if you need to use that. I'm interested to see how this will turn out, so let me know if i can help you
    hey thanks but the lt1 and ls1 r different in more ways then one but thank u i appreciate the offer

    no i think the only way to do it and do it right is to take my intake off and make alot of measurements and a complete cardboard cutout.

    also mark what did u us for bungs for the injectors?

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    Quote Originally Posted by AB'sLs1 View Post
    hey thanks but the lt1 and ls1 r different in more ways then one but thank u i appreciate the offer

    no i think the only way to do it and do it right is to take my intake off and make alot of measurements and a complete cardboard cutout.

    also mark what did u us for bungs for the injectors?
    i used a piece of plate steel ( i think 3/8") on my drill press, i drilled 4 holes, then used a larger bit to contour the top edge. after the holes were drilled i cut around the 4 holes and used them for the bungs....cant remember the hole size, but just measure your injectors with the "O" rings on and go slightly smaller

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    thats a pretty good idea i was thinking about that for awhile and what i was going to do was drill outta nut and round the edges but that would have been pretty time consuming so i kinda like ur idea better

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    that was a very good looking intake! i know my welds wont be quite that flawless but im still going to try. the only thing that bothered me was the fact that he said it had no gains on the motor. now i didnt see a dyno graph or anything but with the runners pointing at a good striaght angle like that he either didnt port match to well or his plenum was to big. still tho im surprised there where no gains at all in power.

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    also do u know what the 3 ports where at the back of that intake?

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    Quote Originally Posted by AB'sLs1 View Post
    also do u know what the 3 ports where at the back of that intake?
    vacuum ports for MAP, i think, my ls6 intake has the MAP and two vac fitting on the back of it.
    for yours, id drill and tap a few holes on the back of it, then thread in some barbed fittings....if you dont use all of them, just pop a vaccum cap on them

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    they r all vacuum lines?

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    I cannot give much help...

    But I send my best wishes, that is very cool!

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    Quote Originally Posted by AB'sLs1 View Post
    they r all vacuum lines?
    yup. MAP, brake booster, and one other one (ive seen it but dont know where it goes)

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    alright now do u know where i could buy barbed fitings? just kinda any hardware stores kinda deal?

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    Quote Originally Posted by AB'sLs1 View Post
    alright now do u know where i could buy barbed fitings? just kinda any hardware stores kinda deal?
    yup, anywhere, autozone, advance, just check what you have on your stock intake and get that size. (brass fittings not plastic)

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    alright hey thanks im still trying to plan this thing out right i dont like to just dive in to a project with out knowing what im getting myself into

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    Quote Originally Posted by hot93rod View Post
    mark21742 Quote:
    Originally Posted by hot93rod
    i live in elizabethtown, and i have an extra intake manifold for my '95 lt1, let me know if you need to use that. I'm interested to see how this will turn out, so let me know if i can help you

    i went by your area this morning on my way out to NJ and back

    So i take it that mercersburg is west of here then?
    yup, im about ten minutes form I81 and maryland line

  18. #58
    I'll keep this civil and recommend that you forget about the intake manifold idea... seriously, just forget about it.

    Better yet, focus your efforts on the other side of the engine. Buy a bunch of mandrel bends and build your own dual exhaust. One that fits well and goes over the axle. Not only is it more practical but if done right you could make a decent amount of money duplicating the setup

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    Quote Originally Posted by Marc 85Z28 View Post
    I'll keep this civil and recommend that you forget about the intake manifold idea... seriously, just forget about it.

    Better yet, focus your efforts on the other side of the engine. Buy a bunch of mandrel bends and build your own dual exhaust. One that fits well and goes over the axle. Not only is it more practical but if done right you could make a decent amount of money duplicating the setup
    i was thinking about doing a nice Y pipe but my instuctor wont let me take my cay into school and i already have the slp loudmouth. but i mean it is a good idea.


    i am starting to wonder if its a very practical idea right now cuz this is my only car so i cant have it apart very long and if i do it id like to be able to spend more time on it. im starting to re think it and im not sure what i should do i know i wanna build and intake sometime in my life i just am not sure if now is the right time.

    but thank u for the idea it would be a very good idea but i just bought my system and id like to make it last alittle longer...u know what i mean

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