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GTX engine group buy tech questions -- split thread

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    GTX engine group buy tech questions -- split thread

    I'm doing research right now on how much this swap would cost me and how I would get it installed with minimal downtime.

    I may be another motor on the list... ill post here when I know for sure.
    Adam- 1994 Escort GT-X

    BP-T @ 14psi

    #2
    you pull you motor out, pull your wiring harness out and ecu out and swap in the gtx harness and ecu OR you buy a piggyback system and just your stock gt harness and ecu then you drop the gtx in.....
    91 323 GTX @ 16psi, 5 speed || December 07 R.O.T.M.
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      #3
      Originally posted by redfox
      you pull you motor out, pull your wiring harness out and ecu out and swap in the gtx harness and ecu OR you buy a piggyback system and just your stock gt harness and ecu then you drop the gtx in.....
      well thasts assuming you got intercooler piping and an intercooler.
      Serenity's Dead.

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        #4
        it will fun just fine with out an intercooler at the stock boost for a wile so long as you arnt hot roding your car at every stop
        91 323 GTX @ 16psi, 5 speed || December 07 R.O.T.M.
        Powered by MegaSquirt I PCB3, Tuned by Lex

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          #5
          Originally posted by redfox
          it will fun just fine with out an intercooler at the stock boost for a wile so long as you arnt hot roding your car at every stop
          I wouldn't do it. I know at least one person here has destroyed a gtx by running no intercooler. Better safe than sorry.
          2013 Dodge Dart Aero

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            #6
            yea I'm not even considering running without an intercooler.

            How do most people go about getting their intercooler piping? would kits from other cars work with a little modification or what? or do they pay to have a custom setup?

            also the possible lack of a harness/ECU kind of concerns me... it appears that if they don't come with the engine... they're hard to find and youll pay out the ass for them.
            Last edited by GTScort; 08-10-2004, 09:25 AM.
            Adam- 1994 Escort GT-X

            BP-T @ 14psi

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              #7
              you dont need to have the gtx harness and ecu...you can use the bp harness and ecu but need a piggyback system so the ecu doesnt freak out... thos systems go from 400-1400
              91 323 GTX @ 16psi, 5 speed || December 07 R.O.T.M.
              Powered by MegaSquirt I PCB3, Tuned by Lex

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                #8
                alrighty i'll take a chance here.... hopefully it comes with ECU/Harness. If not, I guess I'll have to work something else out.

                Add me to the list
                Adam- 1994 Escort GT-X

                BP-T @ 14psi

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                  #9
                  guys even if it doesyou will be better off using a standalone system regardless if you have the bp or gtx ecu i meen come on how often are you going to get a gtx motor for this price?!?!!? on ebay they dont have crap with them and they are 1200 and up PLUS shipping.. with the group buy your looking at 1100 +/- WITH shipping...dont be a cheep ass just cuz it MIGHT not come with an ecu and harness, if noting else you can stash the motor away untill you can fund the other stuff to get it to run or sell it to some1 and maybe make a buck on it...
                  btw: good choice GTSCORT!
                  91 323 GTX @ 16psi, 5 speed || December 07 R.O.T.M.
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                    #10
                    Originally posted by redfox
                    you pull you motor out, pull your wiring harness out and ecu out and swap in the gtx harness and ecu OR you buy a piggyback system and just your stock gt harness and ecu then you drop the gtx in.....
                    You haven't even done this yourself. Do you even know what you are talking about? Perhaps you should let the organizer of the sale speak for himself.
                    2006 Mazda 3 hatchback manual

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                      #11
                      Originally posted by charles
                      You haven't even done this yourself. Do you even know what you are talking about? Perhaps you should let the organizer of the sale speak for himself.
                      he asked a question so i answed it...so stop ****ing chewing my head off for helping
                      91 323 GTX @ 16psi, 5 speed || December 07 R.O.T.M.
                      Powered by MegaSquirt I PCB3, Tuned by Lex

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                        #12
                        Do not answer if you do not know the answer. First of all, the GTX harness will not just plug in. You need to splice the interior wiring. Second, giving the advice of running without an intercooler is bad. You would need to get piping even without the intercooler anyway. Turboge knows the answers to these questions, he is very knowledgable about the subject. Why not send him an MSN message and wait for him to answer?
                        2006 Mazda 3 hatchback manual

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                          #13
                          so with the stock ECU, we'll be limited to roughly 7-10lbs of boost correct?

                          perhaps someone can explain in detail what needs to be done to run more? my goal is roughly 12-15lbs

                          so I would need to buy an aftermarket fuel management unit that would be wired to my stock ECU correct?

                          what else would I need for me run a safely at that boost level? (and please explain what these things do )

                          I really appreciate any feedback... this swap is going to happen but I'd like to learn as much as possible before the project begins
                          Adam- 1994 Escort GT-X

                          BP-T @ 14psi

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                            #14
                            I know since I have a 323 I am gonna need a **** load more than the Lx guys.
                            This is the list that I have gathered so far:

                            G series Lx tranny
                            Lx axles
                            lx speedo cable
                            Lx half/intermediate shaft
                            BPT motor (duh)
                            BP Ecu
                            standalone FMU
                            (The b6 harness should work with splicing correct? since its a BPT, no VICS present)

                            I read also somewhere that I would need the rear tranny mount off of a LX? anyone confirm this?

                            am I missing anything?


                            Oh and another question. How long could this motor sit for? I plan on swapping ASAP, but time/money permitting I may not get to it right away. I got an engine stand and plan on a massive cleaning job. I know if a motor has to sit keep fresh oil in there. Any other reccomendations?
                            The T3 BP MX-3 conversion has begun, and is taking forever & will kill me.

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                              #15
                              I'm not sure about the other parts of the B6 harness, but, if you have the six prong fuel rail plug, plus a seperate connector for the FPR solenoid, it should plug right into those. I've heard that the FPR solenoid is in a different location compared to a stock one, though. Otherwise, if you want to use the LX harness, you have to use a 6-plug connecter vs. the 8-plug LX connecter, and get the plug for the FPR solenoid. It's not as hard as it sounds.

                              Also, you will want to get the 3-wire TPS if you want to run the stock (5-speed) harness. It attaches differently to the throttle body, I'm not sure what the part it attaches to is called. The easiest thing to do is just take the throttle body and 3-wire TPS sensor off a BP. You can probably try to make up a connector that just doesn't use the 4th wire of the 4-wire TPS, but I haven't tried that, so I'm not sure.
                              2006 Mazda 3 hatchback manual

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