Thread: Turbo seized this weekend

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  1. #1 Turbo seized this weekend 
    GT Level Member ls1camino's Avatar
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    So yeah...less than 5k on this turbo and it seized up on me while cruising around Ocean City, MD.

    I have a few questions...does anyone know the name of the turbo that comes with the Stattama turbo kit from ZZP? It says "Garrett M24 A/R .60" on the inlet side and ".81 A/R" on the exhaust side. I'm trying to find either a replacement turbo or a rebuild kit, and I can't get anywhere without some more infomation.

    Also, what do you guys do about saving your turbos from this happening? Some of my friends told me I should let the car idle for about 30 seconds after some hard driving to let the bearings cool down. I've never heard of this, but I doubt it would hurt anything. They also mentioned something about a Turbo Timing that continues to circulate oil/coolant after the car shuts off.

    This is my first turbo car, and I'm already kind of pissed that it's down due to my lack of knowledge, so any input would be great. Thanks.
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  2. #2 Re: Turbo seized this weekend 
    GXP Level Member ctracer's Avatar
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    with my dads 87 turbo regal he always lets it idle for a minute before shutting it down. make sure to not get into the boost before you are about to shut it down, thats what kills alot of turbos. if i think of anything else ill post.

    edit: he opens up his hood too to cool it off. not sure if it actually does anything though lol
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  3. #3 Re: Turbo seized this weekend 
    Turbo is the way to go. BillBoost37's Avatar
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    I do know that many good remote starters etc will have a turbo timer built in to cool the turbo etc. Sorry to hear about it and that I don't have more info for you.
    I drink..so consider that when reading my posts.

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  4. #4 Re: Turbo seized this weekend 
    youtu.be/xhrBDcQq2DM FoSHO99's Avatar
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    Stattama LLC -- Turbo Kits and Parts Stattama- High Performance Automotive

    Turbo timers let the car run for a few minutes to cool things down after key off.

    You sure there wasn't any debris in the oil feed lines that may have caused the failure?
    2001 GTP PT61 Turbo, E85, Stock Motor
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  5. #5 Re: Turbo seized this weekend 
    Perma-Banned! JK LOL Explicit_Spade's Avatar
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    The make of turbo is Garrett the model of the turbo is M24

    Pretty much any local diesel shop can rebuild the turbo for you, and that in most cases will cost less than buying new.

    I borrowed this explination of A/R from moddedmustangs.com (source link: Forums at Modded Mustangs)
    Quote Originally Posted by 2000Si View Post
    A/R Explanation
    A/R is the rated volumetric efficiency of a turbos 2 sections, so to speak. Imagine if you have a garden hose spraying water out at a pinwheel
    with the hose open ended, the pinwheel spins okay. Put a nozzle on it an the pinwheel will spin like mad.

    There are issues with the nozzle on the end, you lose volume but gain pressure. With the nozzle off you gain volume, but lose pressure and you can't turn the pinwheel as much.

    Simply put, on small displacement engines a smaller A/R is better, on large displacement engine a larger A/R is better due to exhaust volume.

    A larger A/R will spool later and provide a higher power band, if your engine is capable of reaching the RPMS it should be used in.

    You can't cross compare different types of housings and wheels, but if you have a typical T3/TO4E 57 trim with a stage 3 exhaust wheel and a .48 A/R housing, it might have a powerband of 3000-7000, with the .63 it might be 4000-8000, and with a .82 A/R housing it might be 5000-9000. If you have headwork and cams that stop pulling at 8000 RPM's, it's smart to run the .63 A/R housing. If you have a fully ported head and huge cams that will make power till 9000, the .82 A/R housing would be a better choice. <Source>


    <Picture Source>





    <Picture Source>


    This rx7 link I provided tells you how to calculate the trim of a compressor wheel. Just a little fyi when calculating trims, you can calculate it in inches or mm it doesn't matter. Trim is just the ratio of inducer/exducer. The trim will come out the same whether you calculate inches or mm. The link also tells you how a higher or lower trim number determines where the compressor is the most efficient. Also check out the previously provided Garrett link to look at the products menu and the tech menu. You can use the products->turbochargers menu to calculate the trim of the compressor wheels. Use the formula in the rx7 club site or Garrett site to calculate the trim.
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  6. #6 Re: Turbo seized this weekend 
    Donating Users GMR Badass's Avatar
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    I have been hunting for the same exact information as to what I can use as a direct replacement for the Stattama turbo kit.

    Explicit_Spade post makes sence as to why Stattama's website says
    "With the .68 AR exhaust housing, this turbo is a perfect choice for street/strip 3800 powered vehicles. We have equipped dozens of FWD 3800 cars with them with 500 WHP achieved many times on pump gas. With the optional .81 AR ratio, this turbo works well for twin-charged 3800s or for a primarily street driven V-8 car or truck.

    With the twincharge setup there is tons of low end torque and you don't need the turbo to start build boost until the upper RPM range, hence why they went with the .81 A/R exhaust housing.

    From reading on their website it looks like they combing a Precision T4 .68 or .81 A/R exhaust housing with the Garrett M24 intake housing to make their own unique turbo. When I was looking everywhere I wasn't able to come up with much more infor on the intake housing or the A/R of the housing.
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  7. #7 Re: Turbo seized this weekend 
    youtu.be/xhrBDcQq2DM FoSHO99's Avatar
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    Who did you get the kit from? Some people have installed restrictors in the oil line to keep the oil pressure to turbo lower, the problem is that these restrictors can get clogged with debris if there is no pre-filter, which can lead to failure. It's just something to look into as to why it failed before you stick another on.
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  8. #8 Re: Turbo seized this weekend 
    GT Level Member ls1camino's Avatar
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    Quote Originally Posted by FoSHO99 View Post
    Stattama LLC -- Turbo Kits and Parts Stattama- High Performance Automotive

    Turbo timers let the car run for a few minutes to cool things down after key off.

    You sure there wasn't any debris in the oil feed lines that may have caused the failure?
    Thanks for the link.

    While diagnosing the failure on the side of the road, my friends and I pulled the feed line off and started the car. Oil came out of the line, so I'm assuming there wasn't a clog.

    Quote Originally Posted by Explicit_Spade View Post
    The make of turbo is Garrett the model of the turbo is M24

    Pretty much any local diesel shop can rebuild the turbo for you, and that in most cases will cost less than buying new.

    I borrowed this explination of A/R from moddedmustangs.com (source link: Forums at Modded Mustangs)
    Great info, I'm friends with the local diesel shop, so I'll get them to look at it.

    Quote Originally Posted by Quick99GTP View Post
    I have been hunting for the same exact information as to what I can use as a direct replacement for the Stattama turbo kit.

    Explicit_Spade post makes sence as to why Stattama's website says
    "With the .68 AR exhaust housing, this turbo is a perfect choice for street/strip 3800 powered vehicles. We have equipped dozens of FWD 3800 cars with them with 500 WHP achieved many times on pump gas. With the optional .81 AR ratio, this turbo works well for twin-charged 3800s or for a primarily street driven V-8 car or truck.

    With the twincharge setup there is tons of low end torque and you don't need the turbo to start build boost until the upper RPM range, hence why they went with the .81 A/R exhaust housing.

    From reading on their website it looks like they combing a Precision T4 .68 or .81 A/R exhaust housing with the Garrett M24 intake housing to make their own unique turbo. When I was looking everywhere I wasn't able to come up with much more infor on the intake housing or the A/R of the housing.
    Great...frankenstein'd turbo...at least I know where to find a replacement if mine can't be rebuilt.

    Quote Originally Posted by FoSHO99 View Post
    Who did you get the kit from? Some people have installed restrictors in the oil line to keep the oil pressure to turbo lower, the problem is that these restrictors can get clogged with debris if there is no pre-filter, which can lead to failure. It's just something to look into as to why it failed before you stick another on.
    I bought a car that had the entire kit in it. I swapped the engine (L32) and turbo kit to my car. The feed line is unbroken (no restrictor from what I can see). I'm going to remove it and have it blown out of all debris. Is there anyway I can put a filter on this line since it is before the actual oil filter?
    2000 Pontiac Trans Am WS6 M6: 427ci LS3, Built T56, Moser 9" w/ 4.11 Gearing, Full Suspension, and 6-point Cage.
    2000 Pontiac Grand Prix GTP: Twincharged (T67 Turbocharger).
    2007 Chevrolet Silverado 3500 Dually: Intake, Exhaust, and Tune.
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  9. #9 Re: Turbo seized this weekend 
    GXP Level Member darkhorizon's Avatar
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    The turbo used in stattama turbo kits is an off the shelf PT unit.. a 62xx - 67xx with the small compressor cover is a direct swap.

    Any other garrett style tanginal T4 vband turbo is going to be the same on the exhaust side, with mild effort adapting the compressor side around in some cases. The compressor side is easy to fudge around, while any exhaust changes would cause you problems.
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  10. #10 Re: Turbo seized this weekend 
    GTX Level Member acidcrashdburnd's Avatar
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    Quote Originally Posted by ls1camino View Post
    So yeah...less than 5k on this turbo and it seized up on me while cruising around Ocean City, MD.

    I have a few questions...does anyone know the name of the turbo that comes with the Stattama turbo kit from ZZP? It says "Garrett M24 A/R .60" on the inlet side and ".81 A/R" on the exhaust side. I'm trying to find either a replacement turbo or a rebuild kit, and I can't get anywhere without some more infomation.


    Also, what do you guys do about saving your turbos from this happening? Some of my friends told me I should let the car idle for about 30 seconds after some hard driving to let the bearings cool down. I've never heard of this, but I doubt it would hurt anything. They also mentioned something about a Turbo Timing that continues to circulate oil/coolant after the car shuts off.

    This is my first turbo car, and I'm already kind of pissed that it's down due to my lack of knowledge, so any input would be great. Thanks.
    Were you in your GP last weekend? I think I might have seen you around 45th street. I was there for the LS Meet, everyone was checking out my top swap. felt good man.. lol
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  11. #11 Re: Turbo seized this weekend 
    GTX Level Member acidcrashdburnd's Avatar
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    Quote Originally Posted by BillBoost37 View Post
    I do know that many good remote starters etc will have a turbo timer built in to cool the turbo etc. Sorry to hear about it and that I don't have more info for you.
    Viper 5900 and 5901 should do it
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  12. #12 Re: Turbo seized this weekend 
    GT Level Member ls1camino's Avatar
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    Quote Originally Posted by acidcrashdburnd View Post
    Were you in your GP last weekend? I think I might have seen you around 45th street. I was there for the LS Meet, everyone was checking out my top swap. felt good man.. lol
    Yeah, 2-door with a cowl hood. I was blowing off the turbo every chance possible, lol.

    Quote Originally Posted by acidcrashdburnd View Post
    Viper 5900 and 5901 should do it
    I'll look into it.
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  13. #13 Re: Turbo seized this weekend 
    Moderator dsmuts's Avatar
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    On my passat 1.8t i always ran synthetic oil and let it run for a minute or 2 after driving so the turbo could cool.
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  14. #14 Re: Turbo seized this weekend 
    GXP Level Member txslow6's Avatar
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    I believe you are looking for something like this...
    Sinister Drag Designs - Turbochargers and Accessories - GM- 3800 Series II/III V6 - Content

    Yes the turbo should be cooled somewhat before killing the engine. Turbo timers are nice but leaving the car running for half a secondwjll yield the same results. The only difference is that the turbo timer is a lazy mans device or one whose always in a hurry.

    I currently do not run a timer and probably will never. If I'm out playing with the car I'll drive normally a few blocks before arriving at my destination. Then I'll just idle for 20-30 seconds before shutting it off. If I drive without getting into boost then I'll just shut off the car.
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