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  • New Intake Project

    No pics at the moment...it was too dark by the time I finished it. I spent probably a few hours doing this right after I got off work. I'll try to explain what I did.

    First off, Saturn put the air filter in the spot they did cause its pretty much the only spot short of going under the car and snaking tube down there and putting a filter under the car. Unfortunately there's some tiny bit of space to work with. You look at the engine bay and you'd think there's plenty of room...but for the ATX...its just not there. Strangely, the Neon has a super cramped engine bay and I could still work with the intake more easily. Obviously with an MTX, its a smaller, and yes, more efficient transmission...so there's plenty of room to move around. Plus there's probably no fluid filter in the way. So, the problem was, I wanted to move my filter down as far as I could without getting into any trouble with it rubbing on anything that could cause problems...namely the radiator hose.

    So I couldnt really go down very far...the filter really couldnt sit vertically...it had to sit horizontally. There's just no room for an upright filter. So...that means I can either extend the tube a tiny bit and maybe move it downward only at an angle...not really on a lower elevation...if that makes sense...or I can move the filter down perhaps 5 inches...by resting it against the fender well frame member and extending the tube a lot more and then make a corner that goes down and fits into the filter.

    The second option is what I did. Here's a crappy diagram to give you an idea...the "==" is tube, the "/ and \" are the corners, the "<00|" is the filter.


    Code:
     =========\
         <00|=/

    The issue I was worried about was the corner...would it make it restrictive? I mean I hear people on neons.org talking about removing the 90* bend in the intake manifold to make the air flow more properly. Now, thankfully, I have an intake manifold that already comes like that...so the problem there is non-existent...though third gen S-Series do actually have the 90* upward bend. Anyway...I was afraid it was gonna make it more restrictive with the bend as drastic as it was. I later ended up making it less drastic by putting an exhaust adapter inbetween the two corner pieces...stretching it out a little.

    The car isnt really much louder...and I kinda expected that cause the extended tube is an old 91 Festiva tube which, has baffling for noise reduction as most stock tubes do...I'm assuming. The Festiva tube extends off the stock Saturn tube at the Saturn's baffling...which is where the baffling is on the Festiva tube. So the air goes through extra baffling. The noise is really not reduced though...just not really any louder than with my previous setup (basically stock filter location minus the airbox and resonator).

    The first drive was insane...I could hear the "whooosh" immediately! I really couldnt hear the whoosh before...so that was cool. The kickdown when you floor it while cruising is nuts! I'm still not entirely sure about tube length and all the dynamics involved...so I dont know for sure if a longer tube means bigger high end...or what...but thats what I've always thought and read. I dont think I lost any low end though, thankfully...in fact, I think I gained some...as well as high end. I think the power was spread evenly instead of one end or the other. Not sure...but the butt-dyno was happy. :twisted:
    1997 Silver SC2 Coupe

  • #2
    wow, i got lost. my eyes are hurting me so maybe im just missing things.

    but really its just have an intake with a good diameter tube with minimal bends and be smooth. thats pretty much all thats needed. am i making sense right now [img]{SMILIES_PATH}/confused.gif[/img]
    Ian---The Fat Ass

    1995 SL2-High compression engine FOR SALE
    2010 Chevy Cobalt SS- tuned with plenty of goodness
    2002 SC2-New daily
    2017 Kawasaki Ninja 650 KRT- got a stupid deal
    2003 Ford Taurus SES- free daily beater

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    • #3
      Ian - Heh sorry...I tend to write lots of confusing novels...but I thought there was something about tube length that helped move the powerband around, like shorter was good for low end and longer was good for high end...but I dont know if there's anything to that.

      My setup had two significant bends and thats about it. The bend from the end of the stock tube going across the engine bay and then the turn downward. I'm sure the pictures will clear it all up.
      1997 Silver SC2 Coupe

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      • #4
        WAIT!
        are you moving the AT tranny filter or the air filter in this project here?!

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        • #5
          HighEnd777 - Uh...the air filter. I just mentioned the trans filter cause it was in the way. :lol:

          Now a couple photos of my previous setup for comparison in case you havent seen it:




          Also a couple shots of my coolant resevoir...I think I've determined that the cap is bad...take a look and see if you can find the same conclusion:


          1997 Silver SC2 Coupe

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          • #6
            The coolant is most likely the cap

            plus they're are preaty cheap so it wouldn't hurt u that much



            about the intake


            all the ribs and shit that it has is what it's going to fuck it up, those cause air turbulance wish you don't really want at all

            you can go w/ a nice expensive intake and have this little shit that holds it up by means of the holes that's in the battery holder thing and it won't rub (AEM)

            or you can have a ghetto ass ebay one for like 20 bux and either use that shit that you have on that one now or make something else up. the intake one will actually help you're setup though cuz yeah....

            <br />
            <br />---Sometimes the choices that hurt the most are the right ones----

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            • #7
              ^^^ what he said and also, you are adding alot more lenght to the intake which messes up flow and causes more turbulence. I dont really get why you did this though... The heat soak is going to be almost identical from where it was, to where you moved it...imo
              Jeff W.
              Old Fella Nobody Remembers

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              • #8
                JazzyJeff - Wait...longer tube length = messed up flow? Then what's the point of a CAI? Aren't they generally pretty long since they have to go from the TB usually to the fender? Unless its a Honda motor where the engine is on the driver's side, usually that takes a lot of length to accomplish. I understand the baffles and ribs screwing up the flow, but the length I would imagine wouldnt hurt anything.

                As for the filter...its been lowered several inches from where it was right up beside the battery...so its closer to the airflow coming in from the underside of the car and also the air flowing in through the bumper. Also I've noticed the tube is less hot after I drive it for a while and then check it to see that its all still together (yes, its that ghetto that it needs to be checked to make sure its still holding together).

                Why did I do it? Just an experiment...like I said, its a project...doesnt mean this is my final result...but it could be. Also like I said, it got the filter to sit further down in the engine bay...not a lot further, but several inches is significant enough for now. Though I am researching different places to see where I can get some regular rubber piping rather than the ribbed stuff so I can replace the entire thing with proper piping. I'd go with metal, but its so hard to manipulate...whereas rubber has give to it so it can stretch and twist for more freedom of movement.
                1997 Silver SC2 Coupe

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                • #9
                  the point of a cold air intake is really just to pick up cooler air. its mroe exposed to moving air, while the short ram/warm air intake is mainly exposed to underhood air which is hotter.

                  the longer tube doesnt do much, if anything. just having the intake tube builds volume, whether long or short. just slapping a filter to the throttle body isnt good.

                  now your case, you have the extra ribs in the tubes so it will disrupt airflow more. but like turbosl1 said, either get an aem short ram or a cheap ebay warm air intake.
                  Ian---The Fat Ass

                  1995 SL2-High compression engine FOR SALE
                  2010 Chevy Cobalt SS- tuned with plenty of goodness
                  2002 SC2-New daily
                  2017 Kawasaki Ninja 650 KRT- got a stupid deal
                  2003 Ford Taurus SES- free daily beater

                  Comment


                  • #10
                    Every time you add a bend, you add restriction. The previous set-up is more likly to produce better power.
                    -6S Resident Mechanical Forensics member #001.
                    1995 SC2 Turbo 3.6L DOHC, 6sp manual, Ford 8.8 rearend running on MS3x.
                    1998 F-250 5.4L triton...stock.

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                    • #11
                      Originally posted by TURRRBOOO
                      Every time you add a bend, you add restriction. The previous set-up is more likly to produce better power.
                      +1

                      that thing looks like it started as a good idea, but your ends aren't worth the means if you get my drift.
                      -Vinny

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                      • #12
                        dude...... um... no.
                        Sixthsphere.com Owner
                        2016 Honda Fit
                        2002 Saturn SC2 - RHD
                        2002 GMC Sierra 2500HD Duramax

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                        • #13
                          WOW, you could pick up some mandrels at autozone and do it that way but it will be heavy.
                          sigpic

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                          • #14
                            Well I changed it back to the original setup (ie the stock tube with the filter on the end)...sort of. This time I used thin-walled bathroom exhaust vent piping (3" diameter)...so the bends and the ribs are gone. Problem is...I dont think it feels any different...nor does it sound much meaner. Yes, I did take the negative connector off the battery (I always do this when I mod something in the engine bay)...it was off at least 15 minutes before I bolted it back on.

                            Now I'm kinda skeptical. Maybe the ribs and bends werent doing anything productive...but damn...I'm not really impressed by this setup at all. At least the last setup felt a little peppier...but maybe thats just an un-calibrated butt-dyno at work there. [img]{SMILIES_PATH}/confused.gif[/img]
                            1997 Silver SC2 Coupe

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                            • #15
                              everyone else summed up my other points but about the length: The length desnt do much but the longer the tube the more turbulence. CAI's can get away with this with smooth bends and a cooler charge, but that set up was giving you negative results...
                              Jeff W.
                              Old Fella Nobody Remembers

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