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Thread: Rajicase's First Turbo Build, Ballin' On A (Nonexistent) Budget

  1. #76
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    Quote Originally Posted by Butters Stoch View Post
    I think the 256 is more of a comparison to the 3076 http://honda-tech.com/forced-inducti...3076r-2220363/
    "[256] is definitely larger compared to the GT3076r, and you can see that in the pictures below. The turbine on the s256 is significantly larger than the opposing gt3076r, as is the Exducer on the compressor due to the extended tip technology"
    1989 535i - sold
    1999 Tiag/Dove M3 - sold
    1998 Turbo Arctic/black - current
    2004 TiAg/Black - Current

    PTE6870 | 1.15 ar | Hp Cover, Custom Divided T4 bottom-mount, 3.5" SS exhaust, Dual Turbosmart Compgates, Turbosmart Raceport BOV, 3.5" Treadstone Intercooler, 3.5" Vibrant resonator and muffler, Arp 2k Headstuds | Arp 2k Main studs | 87mm Je pistons | Eagle rods | 9.2:1 static compression, Ces 87mm cutring, Custom solid rear subframe bushings, Akg 85d diff bushings, 4 clutch 3.15 diff, , Poly engine mounts, UUC trans mounts W/ enforcers, 22RPD OBD2 Stock ECU id1700 E85 tune, 22RPD Big power Transmission swap w/ GS6-53

  2. #77
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    The S256 crushes a GT3076 in every way. The turbine is a much more efficient design and can handle the exhaust flow of a 6cyl engine. For a cheap reliable 500whp or less this is a rockstar budget turbo IMO.
    -Nick
    91 E30 M42 on VEMS

    Turbo Camshaft Thread

  3. #78
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    Quote Originally Posted by wazzu70 View Post
    The S256 crushes a GT3076 in every way. The turbine is a much more efficient design and can handle the exhaust flow of a 6cyl engine. For a cheap reliable 500whp or less this is a rockstar budget turbo IMO.
    Spool ?
    1996 332IS
    Built 3.2
    CES/Steed TS Precision 6466, spraying a "$π!℅" load of meth.
    Technique Tuning 80# tune.
    1/4 mile 10.84 @ 136.72
    Your 1 and only stop for all your BMW performance needs
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  4. #79
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    The S256 would be a great turbo to pair up with the new Steed mani too. The S257SXE wold be sechs.

    In Precision speak the turbo is a 5670

    Some turbo specs for comparison

    GT3076R:
    Compressor: 58mm inducer, 76.6mm exducer
    Turbine: 60mm inducer, 55mm exducer

    GTX3576R:
    Compressor: 58mm inducer, 76.6mm exducer
    Turbine: 68mm inducer, 62.3mm exducer

    GT3582R:
    Compressor: 61.4mm inducer, 82mm exducer
    Turbine: 68mm inducer, 62.3mm exducer

    S256SX:
    Compressor: 56mm inducer, 76.2 mm exducer
    Turbine: 70mm inducer, 61mm exducer

    S257SXE:
    Compressor: 57.1mm inducer, 76.2mm exducer
    Turbine: 70mm inducer, 61mm exducer



    A comparison of S256SX with a 1.22A/R Twin Scroll Housing a 3076R with a 1.06A/R Twin Scroll housing:


    Source:
    http://www.full-race.com/store/turbo...670-turbo.html
    Last edited by wazzu70; 12-12-2015 at 03:44 PM.
    -Nick
    91 E30 M42 on VEMS

    Turbo Camshaft Thread

  5. #80
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    Quote Originally Posted by wazzu70 View Post
    The turbine is a much more efficient design and can handle the exhaust flow of a 6cyl engine. For a cheap reliable 500whp or less this is a rockstar budget turbo IMO.
    this is almost exactly what i told raji. He thinks he wants my turbo though because "how it is up top".
    1989 535i - sold
    1999 Tiag/Dove M3 - sold
    1998 Turbo Arctic/black - current
    2004 TiAg/Black - Current

    PTE6870 | 1.15 ar | Hp Cover, Custom Divided T4 bottom-mount, 3.5" SS exhaust, Dual Turbosmart Compgates, Turbosmart Raceport BOV, 3.5" Treadstone Intercooler, 3.5" Vibrant resonator and muffler, Arp 2k Headstuds | Arp 2k Main studs | 87mm Je pistons | Eagle rods | 9.2:1 static compression, Ces 87mm cutring, Custom solid rear subframe bushings, Akg 85d diff bushings, 4 clutch 3.15 diff, , Poly engine mounts, UUC trans mounts W/ enforcers, 22RPD OBD2 Stock ECU id1700 E85 tune, 22RPD Big power Transmission swap w/ GS6-53

  6. #81
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    It fucking sucks how many choices there are. On one hand, I want a 400-450 streetable set up. On the other hand, I don't want to limit myself significantly down the road if I want to make more power..

  7. #82
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    Wait until you exhaust the S256. Its quite capable. 450rwhp will not be tapping it out.
    -Nick
    91 E30 M42 on VEMS

    Turbo Camshaft Thread

  8. #83
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    Quote Originally Posted by rajicase View Post
    It fucking sucks how many choices there are. On one hand, I want a 400-450 streetable set up. On the other hand, I don't want to limit myself significantly down the road if I want to make more power..
    6262, 6266, or 6466 .
    Choose the middle one.
    Spend the coin $1500 on the turbo.
    1996 332IS
    Built 3.2
    CES/Steed TS Precision 6466, spraying a "$π!℅" load of meth.
    Technique Tuning 80# tune.
    1/4 mile 10.84 @ 136.72
    Your 1 and only stop for all your BMW performance needs
    WWW.CESMOTORSPORT.COM

  9. #84
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    I think the OP is on a tight budget. MLS headgasket, TCD manifold, etc. No $1500 turbos.

  10. #85
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    Quote Originally Posted by pbonsalb View Post
    I think the OP is on a tight budget. MLS headgasket, TCD manifold, etc. No $1500 turbos.
    Correct! $1500 would be more than I have spent on this entire project at this point lol.

    I'm going to just be happy with the s256. It seems like a solid turbo that will give me everything I wanted going into this build. Fast spooling and an easy 400-450 with room for a bit more. Reliability is priority here, more so than anything else. The BW should give me that and satisfy my power goals. Guess I can't ask for anything else.

    Especially when I have budgeted $3k for this build INCLUDING a brand new short block with forged pistons.

    I think I'm getting ahead of myself and getting caught up in thinking about trying to make big power years from now and forgetting about my current short-mid term goals.
    Last edited by rajicase; 12-12-2015 at 06:34 PM.

  11. #86
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    What are you doing with that gt35

  12. #87
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    Honestly not sure.. No idea lol. Guess that partly depends on ifi can determine its authenticity?

  13. #88
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    Quote Originally Posted by rajicase View Post

    Correct! $1500 would be more than I have spent on this entire project at this point lol.

    I'm going to just be happy with the s256. It seems like a solid turbo that will give me everything I wanted going into this build. Fast spooling and an easy 400-450 with room for a bit more. Reliability is priority here, more so than anything else. The BW should give me that and satisfy my power goals. Guess I can't ask for anything else.

    Especially when I have budgeted $3k for this build INCLUDING a brand new short block with forged pistons.

    I think I'm getting ahead of myself and getting caught up in thinking about trying to make big power years from now and forgetting about my current short-mid term goals.
    LOL sorry dude you can't boost these cars for 3k. A built sorry block done properly will be at least 3k.

    "Believe nothing you hear, half of what you read"


  14. #89
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    My prices are all in the OP so feel free to look lol.

    I already have the short block man, so that isn't really up for debate on that end. Everything listed in the OP I already have or have ordered. So the current price total is accurate.

    But the short block was $2050. Arias forged pistons, all new bearings, seals, arp rod bolts, arp main studs, polished crank, new freeze plugs, squirters, magnafluxed rods (stock) , Hastings nitrided rings, line honed to spec for pistons, timing cover and block decked, new chain guides, probably forgetting some.
    Last edited by rajicase; 12-12-2015 at 07:18 PM.

  15. #90
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    Quote Originally Posted by rajicase View Post
    My prices are all in the OP so feel free to look lol.

    I already have the short block man, so that isn't really up for debate on that end. Everything listed in the OP I already have or have ordered. So the current price total is accurate.
    Who built the block and what's done to it?

    I'm not counting the parts you sold

    "Believe nothing you hear, half of what you read"


  16. #91
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    Quote Originally Posted by Fender13Bender View Post

    Who built the block and what's done to it?

    I'm not counting the parts you sold
    Well I'm counting the sold parts lol I bought the block from havusteve on bf.c .. Was professionally assembled by a machine shop in Portland.

    Details on block in my previous post.

  17. #92
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    My turbo system was only about $2000 by this method . . . after I sold all my supercharger stuff.

  18. #93
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    Initially? Stock s52 initially though right?

  19. #94
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    Have you priced out new oil squirters?
    Bruh

  20. #95
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    Think they like 20ish each? Idk in at work

  21. #96
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    Quote Originally Posted by rajicase View Post
    Initially? Stock s52 initially though right?
    I already had a motor very much like yours, rebuilt shortblock with aftermarket forged pistons. But I bought some fancier parts, like new GT3582R, Boostlogic and mount, stainless ic piping and Bell intercooler and stainless 3.5 exhaust, 60 lb NickG tune, Southbend clutch, etc. And I had better stuff to sell. But if you are just counting price difference, I did better than you.

    The only prices that mean anything to anyone else are what you actually paid for everything your are using as part of your turbo system. If you have posted those, that is helpful. The reality, as others have pointed out, is that a turbo system costs more than $3000. About the minimum for everything, and this include getting good prices and buying some used stuff is $4000 for a good 500 rwhp system. Hopefully this will come down in time and more and more cars are done and more used parts are around and tuning gets cheaper.

  22. #97
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    Quote Originally Posted by pbonsalb View Post

    I already had a motor very much like yours, rebuilt shortblock with aftermarket forged pistons. But I bought some fancier parts, like new GT3582R, Boostlogic and mount, stainless ic piping and Bell intercooler and stainless 3.5 exhaust, 60 lb NickG tune, Southbend clutch, etc. And I had better stuff to sell. But if you are just counting price difference, I did better than you.
    .
    Not really a fair comparison as you aren't counting the built short block into the "difference" additionally, you probably sold your SC bits for more than I was able to sell my NA? Dunno on that end

  23. #98
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    Sure its fair if all you care about is how much out of pocket you are.

    Again, the only thing that matters to anyone else is what the turbo stuff actually costs. Report that rather than how much out of pocket you are. If you beat $4k for a dyno proven 500 rwhp system including clutch, flywheel, downpipe, exhaust, turbo, manifold, intercooler, piping, blowoff valve, wastegate, headgasket, arp studs, hoses and fittings and couplers, and injectors and hfm and tune, etc., then you are doing very well. cmzwirner had the $4000 results and did a detailed post.

  24. #99
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    Very well

    So I at some point will re arrange my price break down. I think the built short block sort of skews things because a healthy s52 will handle my power goals 400-450whp(possibly 500 in the future) and I certainly didnt need a new block. Ive always wanted a new engine, so I splurged on that.. What I want to do is give people an idea of how (relatively) inexpensively a turbo m3 can be put together and still use name brand parts and not cheap out on anything essential. I want to show that someone with a healthy m/s5x can put together a solid turbo set up for $3k or so. As of now I still have $500 or so left to meet that goal. We will see.

    As of NOW I have spent $2500 on the turbo build, that includes a new tuning package, clutch kit, HG, ARPs, etc etc but not the built short block. That ALSO includes two turbos, which I will leave as of now because I think it depicts the fact that anyone(especially a noob like me) is going to make mistakes and have set backs.
    Last edited by rajicase; 12-13-2015 at 12:10 AM.

  25. #100
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    Quote Originally Posted by rajicase View Post
    Think they like 20ish each? Idk in at work
    Nah dude. Check again.
    Bruh

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