Mungyz blue Zed

Discussion in 'Member's Garage' started by mungyz, Dec 22, 2009.

  1. clivezx

    clivezx New Member

    rev limit

    JWT R5 cams stop making useful power after 7000rpm I've set mine at 7200 and find that is plenty.
     
  2. BLACK BEAST

    BLACK BEAST SLICKTOP TT R-SPEC

    you'll find that its also turbo sizing that can affect the power drop off curve .

    A GT28R will drop off power much sooner than a GT2871 with the same cams
     
  3. clivezx

    clivezx New Member

    If you don't mind me asking what turbo's are you planning for your latest build?
     
  4. BLACK BEAST

    BLACK BEAST SLICKTOP TT R-SPEC

    its on my signature:D

    GT28RS
     
  5. mungyz

    mungyz Well-Known Member

    Vuk offered a set of AMS manifolds at an unbeatable price so those will be on their way down here as soon as I have paid for them :D
    I put my original highly ported stock manifolds on the NZ 300ZX forum & they sold within a couple of hours :zlove:

    So that will leave the engine in this state:

    Z1 throttle bodies
    AMS exh manifolds
    Slightly ported heads, plenum & inlet manifold
    Wiseco 88mm pistons
    Eagle rods
    Knife edged & balanced crank
    ACL race bearings
    Cometic head gaskets (0.039" extra thickness to offset all the machining etc)
    ARP head & main studs
    Unorthadox racing 5Kg Ally flywheel
    Xtreme motorsport pressure plate
    six puck bras button plate
    555cc injectors
    Garrett GT2560R turbos
    Custom made turbo down pipes (now likely to be a power restriction)

    That combination there is a "just add fuel & boost" recipe for a whole lot of fun :D I COULD go for some more aggressive cams & get more power but at this stage I'm happy to play with the stock ones.
     
  6. Tektrader

    Tektrader Z32 Hoe, service me baby

    Could I convince you to use the stock throttle bodies first, then change to the Z1 bigger versions??

    I would love to know if there is a gain.
     
  7. BLACK BEAST

    BLACK BEAST SLICKTOP TT R-SPEC

    He is going to run 2.5 piping as well so not a good test to do .

    you will see a difference with stock piping /throttle bodies versus 2.5 piping / z1 throttlebodies

    BUT the difference in power will be determined by turbos/ports/valves used
     
  8. mungyz

    mungyz Well-Known Member

    I do have a spare plenum that I could use for a quick change over while on the dyno, would take half an hour to an hour depending on what I do with the fuel system.
    Also have a customer who has had a tune done recently with stock TB that is fitting the same Z1 TBs at some point in the future so we could wait till then.

    I was originally going to run the 2" boost piping but now I am starting to think 2" from turbo to intercooler & 2.5" from intercooler to TB or maybe a hybrid tapered pipe set up.

    Sooo many options & I need to keep things realistic, the exh system is only 2.5" so that kind of makes 2.5" intake plumbing look a little out of place aye.
    Also only aiming for ~600Hp so does it really need bigger piping? will do some research & decide.
     
  9. Tektrader

    Tektrader Z32 Hoe, service me baby

    Well any info is god info. My piping is all 2.5 inches and a fair bit shorter than stock. After what I have already spent $350 for throttle bodies isnt too much providing you get good power gain from it.

    IMO if you gain only 5-8 rwkw from them they arnt worth the effort.
     
  10. mungyz

    mungyz Well-Known Member

    There is the bling factor to consider though, the stock ones look like crap with all those ugly casting patterns on them. Also you get the kit to replace the broken spring bushes etc & while I'm there I will get the springs cad plated :)

    I would hope for about ten killerwasps it will make light throttle setting more touchy IE: harder to feather the throttle at low settings but 300HP is a lot to push through that factory throttle each side.

    We will soon see - I intend to be up & running within a mth or so :)
     
  11. mungyz

    mungyz Well-Known Member

    Throttles fitted to manifold:
    [​IMG]

    Fuel rails modified
    Removed factory tubes for both in & out on both sides, welded AN6 fittings both ends of fuel rails, hose made up for across the front to replace the "hose of doom" (well known for clamps coming loose & leaking).

    [​IMG]

    Fuel will now be feed in at number six injector & the fuel system will not have to be opened up to get the plenum off :)
     
  12. mungyz

    mungyz Well-Known Member

    Not far away now, just waiting for a couple of part then she can go back in :)

    [​IMG]
     
  13. s_t_r_e_t_c_h

    s_t_r_e_t_c_h flammin zed!!

    wow, looks the goods.. is the red powder coated?

    cant wait to get my engine back together LOL
     
  14. Chad_

    Chad_ Well-Known Member

    looks great man love how u did the fuel rail so the plenum is even easier to get off :cool:
     
  15. SIM300

    SIM300 FAKE MODERAT0R

    Lookin' good, Glenn.
    Those TB's definitely look a lot cleaner than the stock items. You've rebuilt your engine & almost have it back on the road & mine is still no closer haha. Mind you, I have put my Z to the side, I've lost the patience.
    With this new fuel setup, I can only assume you want be using the stock damp/reg (or at least in the stock location)?
     
  16. mungyz

    mungyz Well-Known Member

    Stock reg was binned ( in a storage bin with many others not the rubbish bin LOL!) ages ago & yeah fuel dampner is stepping aside also. Much cleaner look & less opportunity for leaks etc. :)

    Mate I should convince my wife we need to go to Tazzy for a holiday & come have a look for this elusive gremlin you have.
     
  17. Chad_

    Chad_ Well-Known Member

    what are u doing with the fuel dampener then????

    also if you made up a new hose for the front part of the fuel rail why didnt you get it made up in the same material and got it welded up ??? could this not be done?

    just looking into this more, if i did this setup would i still be able to run the dampener and fuel reg from behind the eng where the input and outputs are etc...? so in affect like u have nothing ontop of the plenum...
     
  18. mungyz

    mungyz Well-Known Member

    Fuel system being "overhauled"

    [​IMG]

    [​IMG]

    [​IMG]

    The 90 degree fitting goes on top of the inline filter (red one) & the 150 degree fitting (turns almost back where it came) goes on the regulator on the outer side.
    Fuel comes in to the rails at number six cyl & exits at number five cyl.
    Only two hose clamps in the system now & they will be replaced at a later date with AN type fittings also.

    A touch over $500 NZ worth of fittings & hose there :(
     
  19. rollin

    rollin First 9

    Nice job ! thats exactly how i was thinking of running my fuel lines to a modified stock rail. Im such a tight arse that i wouldnt pay 500bucks for fittings though
     
  20. Chad_

    Chad_ Well-Known Member

    so wheres the fuel dampener? still bit confused
     

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