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    #16
    Did a bit on this shitbox a while back that being a mcleod twin plate clutch and a Mal Wood supplied concentric slave it sorted the issues with the clutch.

    Kind of thinking a pair of gt2871r could be pretty nice on this and think it could be packaged a bit better with the whole hidden placement things and should be pretty quick spooling.

    Heads are copping some double springs and some Manley valves.
    Some mild intake and a fairly good going over on the exhaust
    Custom hydro roller 233 @50 and 240 @ 50 with 545 lift on 112 lsa

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      #17
      Pair of gt2871s will be way too small..

      A mate is using a GTX42 on his 355 + 4L80e combo.. he is running a 3k stall so it flashes up to immediately being on boost, couldnt accurately tell you where it'd come on boost without the convertor

      Theres heaps of room, he's got a 4" dump off the turbo and a 66mm Precision gate sat in front of the motor

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        #18
        Just remembered i conveniently have a photo

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          #19
          Yeah cool.



          This is mine but a few years on from that pic. ie

          Cleaned up wiring further. Plus different master cylinder and proportioning valve. More socket head stainless bolt goodness and fixed an oil leak...Plus a few oem style stickers to try and confuse people further.
          Also changing the silver vent to the green body colour along with some black on the wipers.

          In that pic it is turboed ...

          Like i said packaging 2 smaller turbos might be a little easier then one larger one.

          On paper the twin gt28s are similar to the single gt42

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            #20
            Not that I know anything about these motors, but just keep in mind that a GT28 is basically a small upgrade for a 2L sr20

            I would have assumed that 2 of them on a 5L would still be small

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              #21
              Yea i was more thinking if a RB26 can spool them surely theyre way too small? Wouldve thought Gt30s would be the smallest you'd go?

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                #22
                Yes I agree with the gt28 being a good upgrade for a small 2 litre 4 valve motor. Essentially this is just 2 of them that will not rev to the rpm of the 2 - 2.5 litre will and with a 2 valve head the ve is down a bit also.
                In the lsx twin kits they are using the gt28-30. So I am thinking the 2876 or 2871 with a .86 rear housing could be a good setup.

                Have been kind of looking at the mamba turbo but but the cost of import changes I would think would push it up to be similar to what the garret would be anyway

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                  #23
                  Also, did i read that correctly - in the photo with the air cleaner, the motor is turbo'd?

                  Is the air cleaner hiding pipe work?

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                    #24
                    Originally posted by yohoes View Post
                    Also, did i read that correctly - in the photo with the air cleaner, the motor is turbo'd?

                    Is the air cleaner hiding pipe work?

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                      #25
                      Is that the up pipe slotting between the back of the drivers side head, wiper motor and clutch master?
                      "Where can we get hold of a Vincent Black Shadow?" "Whats that?" "A fantastic bike," I said. "The new model is something like two thousand cubic inches, developing two hundred brake-horsepower at four thousand revolutions per minute on a magnesium frame with two styrofoam seats and a total curb weight of exactly two hundred pounds."

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                        #26
                        Originally posted by Gammaboy View Post
                        Is that the up pipe slotting between the back of the drivers side head, wiper motor and clutch master?
                        Yeah its matt black.

                        It was at a car show the other week its funny the comments from the uninitiated.

                        "its nice to see a near standard motor" LOL
                        (well technically it is relatively)
                        Few guys local have known about it for a while they must talk about it to the uninitiated then they come back hunting around trying to work it all out.

                        Had an older mechanic miffed he recons he walked past and looked in the bay twice and still didn't work it out and someone even said to him it has a decent size hair drier on it.
                        Was not until somebody pointed it all out that he under stood what was going on.
                        If its going to be hard parked i normally drop the boost and afr gauges off so there is no give away in the interior also.

                        Mission accomplished.

                        It presents as a fairly tidy ol ute with a nice interior etc with a set of the 17inch gts looking wheels so most gather its just a cruiser.

                        Now its time to step it up a bit further and change it so the numbnuts that keep on banging on about it at the show have even less of an idea next time.

                        Well cam specs are changed again gone to IN233@50 and EX235@50 approx 560 lift on 114 on a hyd roller. This was my suggestion along with the machinist input he recons it will still be fairly conservative on the valve train so should be fairly reliable we just were both not 100% happy with the last one with the large forward split .
                        Should be fairly tame sounding still and will setup things to run NA to iron the bugs out and learn to use the efi system that is planned with less risk to hurting motor straight away

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                          #27
                          Been doing a bit on this 355 of late cleaning up the block of casting flash polishing oil return areas tapping the oil gallerys to accept 3/8 npt plugs radiusing some of the oil gallerys that I could get the die grinder into.

                          Drilled out oil returns in heads to 13mm.

                          Blantnly copied TKs single pipe oil mod.


                          Blatantly copied TK again by porting and shiming the oil pump and removing bypass valve.

                          I am going to an external pick up and going to modify a sump to get a bit more capacity as pick up won't fit with girdle.

                          What I'm hoping to do is incorporate a trap door setup and windage tray

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                            #28
                            Nice work!

                            With the single pipe mod, I seem to remember there was a blanking of the front gallery required - is that right? Or is that the more "full biscuit" oil rerouting?

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                              #29
                              Originally posted by [TUFFVQ] View Post
                              Nice work!

                              With the single pipe mod, I seem to remember there was a blanking of the front gallery required - is that right? Or is that the more "full biscuit" oil rerouting?
                              In the full biscuit setup you would put a restrictior in to the gallery to reduced amount of oil to the lifters to stop it filling the rocker covers with sustained rpm

                              I plan on using roll pins in the push rod trick to reduce some oil to the top end.

                              As far as I'm aware the single pipe mod helps stabilise pressure at the furtherest end of the oil gallery as well as filling the gallery faster on start up

                              http://www.aussiev8.com.au/holden/51...iling-fix.html

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                                #30
                                Well since i got this thread moved i should probably throw a few more pics of the vehicle in question.
                                With its shed mate after said car show


                                And on a private road many years ago edo spec pic taken from a vid i no longer know the whereabouts of and in before skid pic requests

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