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andybp

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Posts posted by andybp

  1. this is similar to my thoughts before starting this project i've already put in the high flow cats but i think your exhaust sizing is a little offf I think a turbo that size will be a restriction which is why i went with a larger turbo with a quick spool setup to try to reduce lag

    dont lag the boost pipework it shouldnt be close enough to the exhaust to worry about and as long as you fit an intercooler with a high enough flow rate the charge cooling benefits outweigh any pressure drop across it

    as for the stand alone oil system its far more troublesome than it seems if you can get a pump matched to the flow and pressure requirments of the turbo it might not be too bad a ball bearing turbo will definatley be easier than a journal bearing

    but the off the shelf pumps are too big even with a speed controller and pressure regulator i couldn't get it to work reliably i'll probably give it another try just not right now

    as for the exhaust size i think the standard centre pipe is 60mm which is probably a restriction on a standard z at 380 bhp it's definately restrictive

  2. 31a_zps55f2ffaa.jpg

    better pic of it mounted on car

     

    34_zpsd48fa39b.jpg

    wastegate flexi pipe welded on

     

    still got plenty to do

    steel braided oil feed and return should be here by the end of the week, intercooler and pipework should arrive next week but i still need to decide in what to do about the air filter

  3. with everything bolted on but the tailpipe

    30_zps03f0a515.jpg

    i don't think anyone will even realise it's there

    32_zps7c70bbf8.jpg

    this pic gives a better idea of the layout

    31_zpse0dbd4c2.jpg

    view from underneath just lacking flexi pipe from wastegate to tailpipe

    33_zpsb37262d6.jpg

    and this is tailpipe with flexi from wastegate welded on (absolute pig to do) need to get this all cleaned up and painted and start on the air filter not gonna just bolt on a cone filter as in the sts setup

    we dont really have the climate for that

    • Like 1
  4. Ok first off sorry for a lack of updates in my defence the weather was crap

    but now i've managed to swap the exhaust over to the one i have chosen to use for this project things are happening at last

    the choice to use this system was made for several reasons

    1. I had the system already and 2. I didn't want to throw money at it i want to prove it can be done on a budget

    This approach has caused some issues including restricting my choice of materials and this issue of clearance between the end of the exhaust centre section and the back of the car

    1_zpsf071e029.jpg

     

    I did consider cutting it back and welding a new flange on it but i like the idea of being able to put it back to normal easily and also i can still use the car as it only takes 10 min to take the back box off

    so this is what i came up with

    5_zps7f0e32d1.jpg

    yes i know what you're thinking but bear with me this isn't quite the final product

    27_zps3b7a78c7.jpg

    28_zpsd6109f4f.jpg

    neither is this but it's getting there the blue wastegate will go straight into the pipe from the turbo it's going to be just the one tailpipe

    the silver wastegate is for the quick spool

    20_zps2f24f620.jpg

    i've still got some welding to do in fact i've still got a lot to do but it's getting there

    29_zps9034ff9d.jpg

    • Like 1
  5. Ok first sorry about the lack of updates been really busy at work and to be to be honest i'm outside all day at work so dont fancy the idea of laying under the car swapping the exhaust so I can measure up for the fabrication

    first off the oil system

    I've had it running on the bench with some success but also some things i'm not happy about the origional sump turned out to be too small but i came across an oil tank on some old hydraulic pumps it was a bit big so i cut it in half and re welded it and welded on an an 10 fitting for the turbo drain tank now fully finished and painted dont have any finished photo's just this one part way through

     

    IMAG0070_zps9543795f.jpg

     

    there's an oil cooler on the outlet of the tank feeding an oil filter then the pump the outlet of the pump has a pressure regulator which feeds back into the tank

    to maintain 40 psi at the turbo i'm having to run the pump at 8 Volts and bypass three times as much oil back to the sump as is going to the turbo to stop the pump stalling and burning out

    a smaller capacity pump may solve this but if i dont have this sorted by the time the weather improves enough for me to get under the car to start the measuring/fabrication then i'll give up the idea of a stand alone oil system

    for another day and go with the standard feed from the engine and a scavenge pump

     

    at the moment i'm running a unichip piggyback on the car not much use for the turbo setup(although it did give me an extra 3mpg)

    so this is what i got to replace it a turboxs utec ecu

     

    IMAG0091_zps4e8b63c4.jpg

    IMAG0077_zps203e2e9f.jpg

     

    this is what they used on the sts turbo's got it for a good price including the map sensor have just updated the software to the last varsion before they stopped supporting it the only thing it didn't come with that i wanted was the

    remote map switch had a look around not much in the uk found some in the us but at $50-$70 seemed like a bit of a **** take to me for a switch ,a plug and a bit of cable in the middle

    so after looking at the accessory plug pinout in the manual i decided to make my own the connections are pretty straight foreward it's a 4 bit binary input although the pin for the fourth bit is also listed as the clutch switch

    i couldnt get the 4th bit to register it's not needed anyway the BCD (binary coded decimal) switches are generally quite expensive but i managed to get 2 for £3 and paid a couple of quid for the molex connector that plugs into the ecu

     

    IMAG0086_zps25e9df2f.jpg

    IMAG0089_zpsd50dec09.jpg

    • Like 1
  6. Some of the cheaper De-Cats can rust pretty quick due to the poor quality stainless used other than that it all about the sound unsilenced sound ok on a standard system other than that i prefer resonated or silenced but at the end of the day it's about personal preference

  7. It's a really difficult one to answer if your involved in an accident where someone gets hurt What i found is that you really have to have told them everything if they want to charge the earth shop around there are some good

    specialist insurers out there (yes thats from personal experiance and no it wasn't my fault)

  8. yep came from ebay make sure you go for a metal gear type pump as opposed to plastic gears or a diaphram as they aren't designed to cope with hot oil

    gonna run it from a power controller fed from a pressure sensor so it doesn't run all out at least thats the plan

  9. a bit slow so far really need to get the exhaust system i'm going to use on the car so i can take some measurements but it's too damn cold out to be honest

    Have started on the dedicated oil system just cut the box section stainless i'm going to use as a sump for the turbo to drain into this isn't very big will hold about 0.5l but the oil cooler will hold about the same

    so should be adequate i'm going to vent the sump back to the turbo inlet

     

    IMAG0017_zps4c51e9ee.jpg

    IMAG0021_zpsf33a1246.jpg

    IMAG0020_zps18209f06.jpg

     

     

    have actually welded this up but too embarassed to show the results haven't touched my tig in at least 3 years should have had a practice first oh well that will teach me best i do it again

  10. i had my wrist fused together when i was 39 due to arthritis and the only advise i can give is if you do have the surgery go into it in the best physical condition you can the healthier you are the quicker you will recover and also as chris s

    has discovered a lot of people with back pain can benefit from increased core strength as for the risks you'll have to weigh that up against your quality of life.

    Good luck.

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