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Pulsar gtx3584

Posted by E85evo, May 16, 2020

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  1. E85evo

    E85evo Probationary Member

    10
    5
    Joined Aug 4, 2019
    Gold Coast, Australia
    Not sure if any of you guys know pulsar gtx series turbos, but i cant rave about them enough they are an ebay turbo, still 1000 dollars aud not sure what they are in american obviously alot cheaper a few of my mates here in aus have switched to them from the hx40, they dont sound as good as the holset though. but been holding 35-40psi no dramas full 35psi by 5150ishhh with 272 cams. qualty casting, torqued bolts, tappered blades
     

    Street Build 193  3

    1995 CC lancer
    12.6 @ 119 · 4G63t Swapped
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  2. Vegas Smith

    Vegas Smith Previously Vegas smith

    3,886
    1,733
    Joined Dec 2, 2002
    Houston, Texas
    I thought about giving one a try but if you decide to move onto something else you'll have a $700 paperweight. Nobody will pay good money for an eBay turbo regardless of how good it may perform.
     

    Street Build 4K  3

    1993 Eagle Talon TSi AWD
    awd · manual · 1G DSM
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  3. JusMX141

    JusMX141 Moderator

    14,948
    865
    Joined Dec 13, 2005
    Greensburg, Pennsylvania
    Give it enough time and we'll likely have China-based ball bearing turbos that can hold their own against brand names at high boost, high EGTs, and 3:1 drive pressures. Is that time now? Perhaps- I have a local friend putting a Pulsar 30R-based unit through it's paces in FP30 housing currently, but nobody can truly be sure yet until there are a bunch in circulation from a specific vendor. I've been in the turbo business long enough to have seen knockoffs of knockoffs, so vendor loyalty can be very important in sourcing something durable and dependable from China.

    I don't mess with servicing ball bearing stuff for the general public outside of sealing ring replacement to a unit with absolutely zero bearing wear, wheel damage, or shaft movement because of the liability, fragile oiling, and extreme sensitivity to balance because the shaft is always fully-supported by the bearing sleeve and there's no pillow of oil to absorb small amounts of vibration. My balancing machine is not set up for cartridge balancing- you'd need a full VSR balancing machine with it's own drive and lubrication system to check the balance of the assembled unit at full operating speed. I have serviced a few ball bearing units for friends and locals successfully, mainly when they have no other option because their specific model is outdated or the cost of replacement CHRA is off the charts...like one user sent a valve through their low-mileage GTX3576R on their Mazdaspeed and ruined the turbine a few years ago. So a new aftermarket turbine shaft, a new aftermarket bearing sleeve, and a VSR rebalance and the guy was back in business for $600ish versus $1899 for a new CHRA from Garrett and it's still going to this day with many more miles on it with aftermarket parts than it had when it ate the valve.

    Now will I trust that enough to service anyone's turbo? Not currently. I don't want the liability of someone sending their 35R-based FP turbo in with minor shaft movement and oil leakage then I service it and the Chinese bearing sleeve comes apart completely in 1500 miles and they want me to buy them a new turbo that doesn't exist anymore. Getting the job isn't worth the potential failure risk to me.
     

    3K  0

    1998 Mitsubishi Eclipse GST
    manual · 2G DSM

    6K  14

    1997 Mitsubishi Eclipse GSX
    awd · manual · 2G DSM

    3K  0

    1992 Eagle Talon TSi
    manual · 1G DSM

    3K  0

    1993 Eagle Talon TSi AWD
    manual · 1G DSM
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  4. E85evo

    E85evo Probationary Member

    10
    5
    Joined Aug 4, 2019
    Gold Coast, Australia
    Your indepth knowledge obviously exceeds mine haha, all i see is 35-40psi for about 6months of abuse isnt that bad for a china turbo, i hope your friend has success for a long time, i did do some reasearch into how they cast and machine there turbos, i found this guy from australia on facebook austin yao who works for pulsar and had videos of the machining processes and benchtesting, i honestly think these new china turbos will change everything.
     

    Street Build 193  3

    1995 CC lancer
    12.6 @ 119 · 4G63t Swapped
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  5. wowzers

    wowzers Probationary Member

    32
    1
    Joined Apr 24, 2009
    Acme, Pennsylvania
    38/40psi logging 57/60 lbs a min on Pulsars gtx3076r in the FP gt30 hotside has proved to be potent. Their hotside paired with the new technology wheels is great. So far I have 800 miles on it, probably 75 WoT pulls from tuning and what not. Have been checking shaft play nearly everytime I hone on it. This little 55mm turbine wheel is flowing out to 8300RPM still holding 40psi of boost I can only imagine the backpressure it’s fighting against. Only downfall is the high IaTs but that could be resolved with a better core than a VSRacing street core.

    I attribute some of the longevity to the turbo of course to the wonderful Brad Penn =)
     

    244  0

    1996 Eagle Talon TSi
    · 2G DSM
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    Vegas smith likes this.
  6. JusMX141

    JusMX141 Moderator

    14,948
    865
    Joined Dec 13, 2005
    Greensburg, Pennsylvania
    One thing I can say with certainty is the Chinese turbine shafts have improved in quality tenfold over the last decade. It used to be common to see a China turbo with a broken shaft that wiped out the whole turbo, now I hardly ever seen it anymore...although some do lack in other areas as opposed to just the turbine head itself. But 40psi through a 55mm turbine in a .68 a/r housing is definitely giving it a workout...if it's still together at 10,000 or 20,000 miles I'd say it passes the test for sure. Good oil is important as well as treating the turbo right in regard to cooling but as you've pointed out that's a solid option for someone with a blown 3052 to pick up a little high-pressure efficiency along the way.
     

    3K  0

    1998 Mitsubishi Eclipse GST
    manual · 2G DSM

    6K  14

    1997 Mitsubishi Eclipse GSX
    awd · manual · 2G DSM

    3K  0

    1992 Eagle Talon TSi
    manual · 1G DSM

    3K  0

    1993 Eagle Talon TSi AWD
    manual · 1G DSM
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