Announcement

Collapse
No announcement yet.

B6t Engine Build

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    B6t Engine Build

    Hi all This is my first post here on this forum.
    Building a B6t for my GTX race car and I'm sourcing forged pistons. My problem is I can't find any pistons listed for a gtx, only the protege. I understand they are the same engine but were they both turbo?
    Do they both have the same pistons? as i would imagine turbo pistons would be a lower comp piston as opposed to N/A

    #2
    Look for pistons for a 1.6 miata.
    12 cbr250r: daily ride
    01 saab 9-3: daily
    98 gsxr 1100: for sale
    93L: money pit/ space waster
    92GL: low and slow beater
    90?: the rust free shell
    89LX: swapping to rust free shell
    89L: for sale
    89L: parts
    87 conquest: dohc 4g64 swap underway
    76+80 vw dashers: for sale

    Comment


      #3
      The Gtx's b6t is the same block as a 1.6 Mazda miata. There's tons of options for high or low compression
      "See that car, in the 80's that car was deadly." Random man to his son while passing the GTX in a parking lot

      Originally posted by neuspeedescort
      the proper spelling would be "Launchabilitiness" i do believe.
      -88' Mazda 323 GTX, 1.8t, Modified Magazine May 2012
      -88' Mazda 323 GTX, caged and ready for dirt
      -93' Mazda Miata, half caged
      -09' Mercedes C63 AMG
      -87' Toyota Land Cruiser, 33's with slight lift, safari style!

      Comment


        #4
        So the difference between the B6ZE and the B6T is in the head?????
        Or are the pistons different?????
        Which compression ratio should I go for?????
        Should I stick to standard B6T Comp 7.9.1????

        Comment


          #5
          Depends on what you want.. I have a B6T with 9.0:1 Wiseco's for a Miata. Just have to be aware of detonation if you want to run high boost.

          1988 White GTX - #1 parts
          1988 Black GTX - #2 reliably broken touge monstar (294,000 miles no rebuilds) - dead
          1988 Blue GTX - #3 in progress (view here)
          1988 Blue GTX - #4 BPT swapped weekend warrior.
          1988 White GTX - #5 Rally car

          Comment


            #6
            This is a Race motor only and will be tuned with an aftermarket computer. The lowest compresion I can find listed in the wiseco catalogue is 8.5.1, is this low enough for what I want. Hope to be running around 15 to 20 psi

            Comment


              #7
              that shuold be fine for your setup
              "See that car, in the 80's that car was deadly." Random man to his son while passing the GTX in a parking lot

              Originally posted by neuspeedescort
              the proper spelling would be "Launchabilitiness" i do believe.
              -88' Mazda 323 GTX, 1.8t, Modified Magazine May 2012
              -88' Mazda 323 GTX, caged and ready for dirt
              -93' Mazda Miata, half caged
              -09' Mercedes C63 AMG
              -87' Toyota Land Cruiser, 33's with slight lift, safari style!

              Comment


                #8
                well... 15-20 psi on what?

                1988 White GTX - #1 parts
                1988 Black GTX - #2 reliably broken touge monstar (294,000 miles no rebuilds) - dead
                1988 Blue GTX - #3 in progress (view here)
                1988 Blue GTX - #4 BPT swapped weekend warrior.
                1988 White GTX - #5 Rally car

                Comment


                  #9
                  Originally posted by 808 View Post
                  well... 15-20 psi on what?
                  Please explain.
                  Can any1 tell me why the stroke listed for aftermarket rods and pistons is not the same as standard stroke. Standard stroke 83.6 , and aftermarket listings say 83.5

                  Comment


                    #10
                    what turbo are you using... based on the response i'm guessing the stock one.. which going much over 16psi doesn't net much gain and anything over 18 you're just blowing hot air. But yes.. 8.5:1 should really be fine on most turbos that the 1.6 could spool.

                    1988 White GTX - #1 parts
                    1988 Black GTX - #2 reliably broken touge monstar (294,000 miles no rebuilds) - dead
                    1988 Blue GTX - #3 in progress (view here)
                    1988 Blue GTX - #4 BPT swapped weekend warrior.
                    1988 White GTX - #5 Rally car

                    Comment


                      #11
                      Stock pistons can handle 15psi no problem. I ran that for years...

                      Comment


                        #12
                        Originally posted by leary393 View Post
                        This is a Race motor only and will be tuned with an aftermarket computer. The lowest compresion I can find listed in the wiseco catalogue is 8.5.1, is this low enough for what I want. Hope to be running around 15 to 20 psi
                        I have the same piston source problem w my rebuild.
                        Wiseco (dealer) can make what you want for compression.
                        I going to stick w near stock being a rally car.
                        Takes 3-4wks tho.

                        Comment


                          #13
                          Ok I will be ordering my Wiseco's very shortly. I'm going to order them as standard comp. This will allow me to wind up the boost later down the track. still deciding on trubo size

                          Comment


                            #14
                            Running higher CR will really improve off-boost driveability 8.5 is a good number
                            1991 Capri XR2 "GTXR2" BPT AWD Bastardization/conversion
                            1991 Isuzu Impulse RS Turbo AWD

                            Creator of the B6T Rocketchip
                            www.werbatfik.com

                            Comment


                              #15
                              From past research and only from memory, 7.1 or was it 7.5.1 comp is ideal comp for turbocharged motors.
                              Am I right in saying that?
                              On the other hand higher comp, as stated will improve off boost driveability, But at what cost? will this limit the amount of boost i can put in? and limit overall power?
                              An answer I havn't yet had answered is, how good are wiseco pistons? how much boost will they take? has any1 had them fail or any other problems with them?
                              I have never herd of any problems or had any drama's with them used in motorbike engines, but I've never herd about how good they are with car applications, and what makes them so much cheaper then say arias pistons.

                              Comment

                              Working...
                              X