Announcement

Collapse
No announcement yet.

KL-ZE Intake Manifold: curved neck vs. straight neck

Collapse
X
Collapse
 
  • Page of 1
  • Filter
  • Time
  • Show
Clear All
new posts
Previous template Next
    #1

    KL-ZE Intake Manifold: curved neck vs. straight neck

    I'm currently running a curve neck intake, but the lack of room means no strut bar. I'm considering going with the straight neck, but info is all over the place on the differences between the two. I just wanna know 2 things:

    1. How much shorter height wise is the straight neck compared to the curved neck?
    2. Are there any real differences in performance between the 2 intakes?
    Tags: None
    #2
    Well I just did some research myself, and found out that there is definitely a difference in performance between the 2 intakes. From what I now understand, the curve neck KL-ZE was rated for 170hp, while the straight neck KL-ZE with it's more aggresive cams rated at 200hp. So I've pretty much found out the hard way that my KL-ZE is about on par performance wise as a KL-DE. I hate my life

    Sent from my SPH-L720 using Tapatalk

    Comment

      #3
      So I finally had time to take a closer look at cams on my KL-ZE, and I confirmed that I don't have the 200hp KL-ZE. I feel like such an idiot now. I did a little research before I bought the MX-3 with the engine already swapped, but they were older threads before most people knew the truth between the 2

      Sent from my SPH-L720 using Tapatalk

      Comment

        #4
        Sucks that you got had. All the more reason to turbo it and call it a day.
        Cincinnati, ohio Bengals for life
        "Who Dey"

        Comment

          #5
          The sad part is I dont think I got had. I'm pretty sure the seller was unaware as well. He bought the motor from a Cincinnati importer, I can't remember the name of the business. I'll more than likely keep it stock for a while. I'm still confused why both motors have the same engines codes since they're so different. Hopefully this will help other people who see this thread.

          Sent from my SPH-L720 using Tapatalk

          Comment

            #6
            Mazda has never been very good about updating engine codes until somewhat recently.

            For example if Honda had made the 90's BP there would be 20 codes for it with factors based on transverse or N/S config, compression numbers, cam profiles, cast/fordged crank, etc. Instead it's just "BP" **** you edition.


            Have you confirmed the cam profiles are really the bulk of the 30hp gain? That seems like a lot for a smaller sized V6.


            626 guys say the compression is bumped up as well as other things.

            http://mazda626.net/topic/37114-klde-vs-klg4-vs-klze/
            Beater=/= Sleeper

            Originally posted by kozzman555
            kitty, you are a hilarious woman
            Originally posted by HopelessCow
            there is one thing i dunno what is that call,a thing look like a gun, u press the button and stick to the metal and it makes firework, do i need that thing?and what s the philip head screw drivers?
            Using Linux for anything serious besides server or software dev is like using a tin can and a string for telecommunications.

            Comment

              #7
              I know the cams, pistons, and compression are different between the 2. In fact, the curve neck KL-ZE shares more parts with the KL-DE than the straight neck KL-ZE

              Sent from my SPH-L720 using Tapatalk

              Comment

                #8
                I can see cams being a VERY big deal. they bumped the 4AGE in my AE86 from 108whp to 133whp. The only other change I made at the time was a SARD AFPR. I added 4psi of fuel, I advanced ignition timing 4°, and the camshafts were exactly zeroed out (made my adjustable cam gears pretty much useless, since I didn't need them at all!)

                That's a 23% increase, which is freaking HUGE.

                Hmmm.. I take that back. I DID also add a 4-1 header, but I can't remember if I did it at the same time as the cams.

                but, say the header added half of that gain.. ~12 percent increase from just camshafts is very significant.

                As far as the compression, yes, it will help a bit, but not as much as the cams, in my opinion. I'm using my 4AGE as reference, since that's what I've most recent experience with.

                It's listed as 112 at the crank.
                I increased compression from 9.4 to 10.3 pistons, a thinner HG, and the first oversize (0.5mm, (0.020")) bore. this brought me to 108 at the wheels.
                Then I added the header at some point, then the FPR and the cams.
                when I got the cams, it was 133whp.

                So, that leads me to believe that the camshafts did more for the power output than the compression did.

                with the KLZE, I think that the camshaft profile, with lift and duration changes, will control the combustion chamber much more effectively, allowing the higher compression to get better gain.

                It's a slow morning at work and I'm nattering on like an old lady. I apologize, and will stop now.

                --sarge

                Comment

                  #9
                  The curve neck is not a real KLZE. Its a Millenia engine. it should never be referred to as a KLZE since it is a KLDE with what appears to be ZE heads, all the other parts are DE.

                  ZE differences: Cams, compression bump, ECU, intake manifold. The ECU and Manifold should be used togethor since the ECU has VRIS points setup for the straight neck manifold. Compression bump is from different pistons and slightly smaller cc combustion chambers in the heads, and the heads have square ports vs Round.
                  92 Mazda MX3 GS> For sale, $1750 OBO
                  94 Escort wagon--BP swap coming, VF10 Turbo, COP, EVO ECU, 03 ZX2 front end conversion
                  "Hold yourself accountable before you are held accountable"
                  EV14 330cc@3Bar injector kits available.
                  EV14 GT500 injector kits available for the BP. 610cc@3Bar.
                  EV14 925cc@3Bar injector kits available
                  BP Forged H beam rods available now
                  KL Forged H beam rods available now
                  K8/KF Forged H beam rods awaiting test fit
                  FS Forged H beam rods                   awaiting test fit
                  F2 Forged H beam rods awaiting test fit
                  FE3 Forged H beam rods coming soon
                  Mitsubishi 3.8 MIVEC rods coming soon
                  Aluminum CAS/Distributor caps
                  BP oil jet eliminators
                  EV14 fuel rail spacers
                  More stuff coming soon.......

                  Comment

                    #10
                    Thanks for the info guys. I'm trying to find side by side dyno sheets for both motors, but the more I research, the more terrible information I keep coming across. It's crazy to me how much incorrect info is out there from reputable forums and sites about this. It's madness!

                    Sent from my SPH-L720 using Tapatalk

                    Comment

                    Previous template Next
                    Working...
                    X