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  1. #26
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    Click here to enlarge Originally Posted by bradsm87 Click here to enlarge
    Agreed. 420-430whp is around what i'd be looking for, no more.
    Then you want stock turbos. 400wtq at 2500rpms and 450-460whp with a killer power band.
    Change is constant

  2. #27
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    I want to achieve it at low boost that carries all the way through to redline easily and generate a lot less heat than stock turbos. Not a fan of pushing those turbos to that power level and i don 't like the drop-off after 5000rpm.

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    Click here to enlarge Originally Posted by bradsm87 Click here to enlarge
    Agreed. 420-430whp is around what i'd be looking for, no more.
    Wouldn't that be RB turbos then with turned down boost in the midrange?

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    Click here to enlarge Originally Posted by Jewber Click here to enlarge
    Wouldn't that be RB turbos then with turned down boost in the midrange?
    Also a good option but still quite high exhaust backpressure due to factory turbine housings. If i had to pay to get my fabrication done, rb turbos would be the way to go but i do my own fabrication so can build a single setup for same price.

  5. #30
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    With the N54s rather low rev limit, you can achieve this with a GTX3076r or HTA3076r and a .63 housing. It will hold 35psi all the way to the 7100RPMs you need it to. And make 600HP doing it. I'd bet that it'd spool in the mid 3k RPM range too. To me, you're not going to beat that combo for a street car.

    Click here to enlarge Originally Posted by bradsm87 Click here to enlarge
    I want to achieve it at low boost that carries all the way through to redline easily and generate a lot less heat than stock turbos. Not a fan of pushing those turbos to that power level and i don 't like the drop-off after 5000rpm.
    2011 335is DCT, JB4 + MHD BEF, stage 2 LPFP, e50 + 50/50 meth, FBO, MT ET Streets when needed


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    Click here to enlarge Originally Posted by bigdnno98 Click here to enlarge
    With the N54s rather low rev limit, you can achieve this with a GTX3076r or HTA3076r and a .63 housing. It will hold 35psi all the way to the 7100RPMs you need it to. And make 600HP doing it. I'd bet that it'd spool in the mid 3k RPM range too. To me, you're not going to beat that combo for a street car.
    Nope, that's about as good as it's going to get. But...that's pretty damn good
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  7. #32
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    Hell yeah! I'd love to DD a 600HP 335i that spools at 3500 RPMS LOL

    Click here to enlarge Originally Posted by mjmarovi Click here to enlarge
    Nope, that's about as good as it's going to get. But...that's pretty damn good
    2011 335is DCT, JB4 + MHD BEF, stage 2 LPFP, e50 + 50/50 meth, FBO, MT ET Streets when needed


  8. #33
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    Click here to enlarge Originally Posted by bigdnno98 Click here to enlarge
    Hell yeah! I'd love to DD a 600HP 335i that spools at 3500 RPMS LOL
    Well compared to what others are spooling, I'm expecting every bit of 18psi of boost by 3500RPM and a lot more than 600HP lol
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  9. #34
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    yeah, 18psi at 3500 rpms on an HTA86r should be feasible. it's the 25psi I wonder about. can the N54 make it before..... 4k maybe? if so that'd be pretty awesome.

    Click here to enlarge Originally Posted by mjmarovi Click here to enlarge
    Well compared to what others are spooling, I'm expecting every bit of 18psi of boost by 3500RPM and a lot more than 600HP lol
    2011 335is DCT, JB4 + MHD BEF, stage 2 LPFP, e50 + 50/50 meth, FBO, MT ET Streets when needed


  10. #35
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    Click here to enlarge Originally Posted by bigdnno98 Click here to enlarge
    yeah, 18psi at 3500 rpms on an HTA86r should be feasible. it's the 25psi I wonder about. can the N54 make it before..... 4k maybe? if so that'd be pretty awesome.
    Terry's made over 20psi before 4krpms on a dynojet dyno pull, so on the street he'd probably hit 23psi at 4krpm no problem.

    When I look at it before I was thinking I'll be within 200RPM of where the 5862 spools. Wish I could find that chart that Tony posted before...I saved it as a pic on my laptop at home but at work right now
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  11. #36
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    Click here to enlarge Originally Posted by mjmarovi Click here to enlarge
    Terry's made over 20psi before 4krpms on a dynojet dyno pull, so on the street he'd probably hit 23psi at 4krpm no problem.

    When I look at it before I was thinking I'll be within 200RPM of where the 5862 spools. Wish I could find that chart that Tony posted before...I saved it as a pic on my laptop at home but at work right now
    Ask and you shall receive. This is on a 4 cly and the notoriously inefficient Subaru Boxer 4 at that, even on the cold header the car is making 25 psi well before 4K. On the hot header 25 psi at 3750. I think a LOT of people are going to be surprised by the spool you can achieve with a properly designed manifold and properly sized turbo. Everyone is used to these kits with a maze of snakes headers and big PT turbos.
    Attached Images Attached Images  

  12. #37
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    @VargasTurboTech it disappeared? It keeps showing up and disappearing...weird @Sticky
    2009 335i coupe back to stock...for now

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  13. #38
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    In the meantime...I found this...now looking for some other dyno testing of smaller turbos

    BrandClick here to enlarge Turbo CmpInd CmpExd TrbInd TrbExd Flow CHRA Bearings Mounting
    Blouch 16G XT 48.30 64.30 55.50 49.00 41.0 Journal Bearing Stock
    Blouch 18G XT 49.80 68.00 55.50 49.00 43.0 Journal Bearing Stock
    Blouch 20G XT 52.00 68.00 63.00 54.00 47.0 Journal Bearing Stock
    Blouch 16G XT-R 48.30 64.30 54.00 49.40 38.0 Ball Bearing Stock
    Blouch 18G XT-R 49.80 68.00 56.50 51.70 43.0 Ball Bearing Stock
    Blouch 20G XT-R 52.00 68.00 56.50 51.70 47.0 Ball Bearing Stock
    Blouch Dom 1.5 XT-R 53.00 71.00 56.50 51.70 49.0 Ball Bearing Stock
    Blouch Dom 2.5 XT-R 53.00 71.00 60.00 54.90 49.0 Ball Bearing Stock
    Blouch Dom 3.0 XT-R 57.00 76.00 60.00 54.90 55.0 Ball Bearing Stock
    Blouch Dom 3.5 XT-R 57.00 76.00 64.00 58.60 58.0 Ball Bearing Stock
    Blouch Dom 4.0 XT-R 60.00 82.00 64.00 58.60 60.0 Ball Bearing Stock
    Blouch Dom 5.0 XT-R 62.00 84.00 68.00 62.20 65.0 Ball Bearing Stock
    BorgWarner BW 7670 56.00 76.00 70.00 61.00 58.0 Journal Bearing Rotated
    BorgWarner BW 8375 60.00 83.00 75.90 68.00 68.0 Journal Bearing Rotated
    BorgWarner BW 8875 63.00 88.00 75.90 68.00 75.0 Journal Bearing Rotated
    BorgWarner BW 9180 66.00 91.00 80.00 73.00 82.0 Journal Bearing Rotated
    BorgWarner EFR 6258 49.60 62.00 58.00 N/A 44.0 Ball Bearing Rotated
    BorgWarner EFR 6758 53.90 67.00 58.00 N/A 49.0 Ball Bearing Rotated
    BorgWarner EFR 7064 52.20 70.00 64.00 N/A 56.0 Ball Bearing Rotated
    BorgWarner EFR 7670 57.20 76.00 70.00 N/A 64.0 Ball Bearing Rotated
    BorgWarner EFR 8374 62.60 83.00 74.00 N/A 79.0 Ball Bearing Rotated
    BorgWarner EFR 9180 67.70 91.00 80.00 N/A 94.0 Ball Bearing Rotated
    Forced Perf FP 71HTA 51.20 71.00 65.00 55.00 51.0 Journal Bearing Stock
    Forced Perf FP Green HTA 54.80 76.00 67.00 59.00 59.0 Journal Bearing Stock
    Forced Perf FP Red 61.21 81.79 67.00 59.00 65.0 Journal Bearing Stock
    Forced Perf FP Red 76HTA 58.00 76.00 60.00 54.90 60.0 Ball Bearing Stock
    Forced Perf FP Black 82HTA 62.00 82.00 68.00 62.23 68.0 Ball Bearing Stock
    Forced Perf FP HTA 3076R 54.80 76.00 60.00 54.90 59.0 Ball Bearing Stock
    Forced Perf FP HTA 3582R 62.00 82.00 68.00 62.20 68.0 Ball Bearing Stock
    Forced Perf FP HTA 3586R 62.10 86.20 68.00 62.20 75.0 Ball Bearing Stock
    Forced Perf FP HTA 3786R 62.10 86.20 72.50 66.50 78.0 Ball Bearing Stock
    Forced Perf FP HTA 3794R 67.50 94.00 72.50 66.50 93.0 Ball Bearing Stock
    Forced Perf FP HTA 4294R 67.70 94.00 82.00 77.00 96.0 Ball Bearing Stock
    Garrett GT 2871R 51.20 71.00 54.00 49.40 46.0 Ball Bearing Both
    Garrett GT 3071R 53.10 71.00 60.00 54.90 46.0 Ball Bearing Both
    Garrett GT 3076R 57.00 76.20 60.00 54.90 52.5 Ball Bearing Both
    Garrett GT 3582R 61.40 82.00 68.00 62.20 60.0 Ball Bearing Both
    Garrett GT 4088R 63.50 88.00 77.00 70.40 67.5 Ball Bearing Both
    Garrett GT 4294R 70.30 94.00 82.00 77.00 85.0 Ball Bearing Both
    Garrett GTX 3071R 54.10 71.40 60.00 54.90 56.0 Ball Bearing Both
    Garrett GTX 3076R 58.00 76.60 60.00 54.90 64.0 Ball Bearing Both
    Garrett GTX 3576R 58.00 76.60 68.00 62.20 65.0 Ball Bearing Both
    Garrett GTX 3582R 62.50 82.50 68.00 62.20 75.0 Ball Bearing Both
    Garrett GTX 4294R 70.30 94.00 82.00 77.00 95.0 Ball Bearing Both
    Precision PTE 5558 54.90 76.20 64.90 57.91 59.0 Either Rotated
    Precision PTE 5858 58.00 76.20 64.90 57.91 62.0 Either Rotated
    Precision PTE 5862 58.00 76.20 71.00 61.90 64.0 Either Rotated
    Precision PTE 6262 62.23 81.99 71.00 61.90 70.5 Either Rotated
    Precision PTE 6266 62.00 81.99 74.17 66.00 73.5 Either Rotated
    Precision PTE 6466 64.40 86.60 74.17 66.00 90.0 Ball Bearing Rotated
    Precision PTE 6766 67.00 86.60 74.17 66.00 93.5 Either Rotated
    MHI TD04L 13T-6 40.70 56.00 47.00 41.30 26.7 Journal Bearing Stock
    MHI TD05H 16G 48.30 68.00 56.00 49.10 37.9 Journal Bearing Stock
    MHI TD05H 18G 50.50 68.00 56.00 49.10 43.7 Journal Bearing Stock
    MHI TD05H 20G 52.50 68.00 56.00 49.10 47.4 Journal Bearing Stock
    MHI TD06SL2 20G 52.50 68.00 61.00 54.00 47.4 Journal Bearing Stock
    MHI TD06H 20G 52.50 68.00 67.00 58.80 47.4 Journal Bearing Stock
    IHI VF39/48/52 46.50 60.00 52.80 47.88 34.0 Journal Bearing Stock
    2009 335i coupe back to stock...for now

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  14. #39
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    Click here to enlarge Originally Posted by mjmarovi Click here to enlarge
    In the meantime...I found this...now looking for some other dyno testing of smaller turbos

    Brandhttp://images.intellitxt.com/ast/adTypes/icon1.png Turbo CmpInd CmpExd TrbInd TrbExd Flow CHRA Bearings Mounting
    Blouch 16G XT 48.30 64.30 55.50 49.00 41.0 Journal Bearing Stock
    Blouch 18G XT 49.80 68.00 55.50 49.00 43.0 Journal Bearing Stock
    Blouch 20G XT 52.00 68.00 63.00 54.00 47.0 Journal Bearing Stock
    Blouch 16G XT-R 48.30 64.30 54.00 49.40 38.0 Ball Bearing Stock
    Blouch 18G XT-R 49.80 68.00 56.50 51.70 43.0 Ball Bearing Stock
    Blouch 20G XT-R 52.00 68.00 56.50 51.70 47.0 Ball Bearing Stock
    Blouch Dom 1.5 XT-R 53.00 71.00 56.50 51.70 49.0 Ball Bearing Stock
    Blouch Dom 2.5 XT-R 53.00 71.00 60.00 54.90 49.0 Ball Bearing Stock
    Blouch Dom 3.0 XT-R 57.00 76.00 60.00 54.90 55.0 Ball Bearing Stock
    Blouch Dom 3.5 XT-R 57.00 76.00 64.00 58.60 58.0 Ball Bearing Stock
    Blouch Dom 4.0 XT-R 60.00 82.00 64.00 58.60 60.0 Ball Bearing Stock
    Blouch Dom 5.0 XT-R 62.00 84.00 68.00 62.20 65.0 Ball Bearing Stock
    BorgWarner BW 7670 56.00 76.00 70.00 61.00 58.0 Journal Bearing Rotated
    BorgWarner BW 8375 60.00 83.00 75.90 68.00 68.0 Journal Bearing Rotated
    BorgWarner BW 8875 63.00 88.00 75.90 68.00 75.0 Journal Bearing Rotated
    BorgWarner BW 9180 66.00 91.00 80.00 73.00 82.0 Journal Bearing Rotated
    BorgWarner EFR 6258 49.60 62.00 58.00 N/A 44.0 Ball Bearing Rotated
    BorgWarner EFR 6758 53.90 67.00 58.00 N/A 49.0 Ball Bearing Rotated
    BorgWarner EFR 7064 52.20 70.00 64.00 N/A 56.0 Ball Bearing Rotated
    BorgWarner EFR 7670 57.20 76.00 70.00 N/A 64.0 Ball Bearing Rotated
    BorgWarner EFR 8374 62.60 83.00 74.00 N/A 79.0 Ball Bearing Rotated
    BorgWarner EFR 9180 67.70 91.00 80.00 N/A 94.0 Ball Bearing Rotated
    Forced Perf FP 71HTA 51.20 71.00 65.00 55.00 51.0 Journal Bearing Stock
    Forced Perf FP Green HTA 54.80 76.00 67.00 59.00 59.0 Journal Bearing Stock
    Forced Perf FP Red 61.21 81.79 67.00 59.00 65.0 Journal Bearing Stock
    Forced Perf FP Red 76HTA 58.00 76.00 60.00 54.90 60.0 Ball Bearing Stock
    Forced Perf FP Black 82HTA 62.00 82.00 68.00 62.23 68.0 Ball Bearing Stock
    Forced Perf FP HTA 3076R 54.80 76.00 60.00 54.90 59.0 Ball Bearing Stock
    Forced Perf FP HTA 3582R 62.00 82.00 68.00 62.20 68.0 Ball Bearing Stock
    Forced Perf FP HTA 3586R 62.10 86.20 68.00 62.20 75.0 Ball Bearing Stock
    Forced Perf FP HTA 3786R 62.10 86.20 72.50 66.50 78.0 Ball Bearing Stock
    Forced Perf FP HTA 3794R 67.50 94.00 72.50 66.50 93.0 Ball Bearing Stock
    Forced Perf FP HTA 4294R 67.70 94.00 82.00 77.00 96.0 Ball Bearing Stock
    Garrett GT 2871R 51.20 71.00 54.00 49.40 46.0 Ball Bearing Both
    Garrett GT 3071R 53.10 71.00 60.00 54.90 46.0 Ball Bearing Both
    Garrett GT 3076R 57.00 76.20 60.00 54.90 52.5 Ball Bearing Both
    Garrett GT 3582R 61.40 82.00 68.00 62.20 60.0 Ball Bearing Both
    Garrett GT 4088R 63.50 88.00 77.00 70.40 67.5 Ball Bearing Both
    Garrett GT 4294R 70.30 94.00 82.00 77.00 85.0 Ball Bearing Both
    Garrett GTX 3071R 54.10 71.40 60.00 54.90 56.0 Ball Bearing Both
    Garrett GTX 3076R 58.00 76.60 60.00 54.90 64.0 Ball Bearing Both
    Garrett GTX 3576R 58.00 76.60 68.00 62.20 65.0 Ball Bearing Both
    Garrett GTX 3582R 62.50 82.50 68.00 62.20 75.0 Ball Bearing Both
    Garrett GTX 4294R 70.30 94.00 82.00 77.00 95.0 Ball Bearing Both
    Precision PTE 5558 54.90 76.20 64.90 57.91 59.0 Either Rotated
    Precision PTE 5858 58.00 76.20 64.90 57.91 62.0 Either Rotated
    Precision PTE 5862 58.00 76.20 71.00 61.90 64.0 Either Rotated
    Precision PTE 6262 62.23 81.99 71.00 61.90 70.5 Either Rotated
    Precision PTE 6266 62.00 81.99 74.17 66.00 73.5 Either Rotated
    Precision PTE 6466 64.40 86.60 74.17 66.00 90.0 Ball Bearing Rotated
    Precision PTE 6766 67.00 86.60 74.17 66.00 93.5 Either Rotated
    MHI TD04L 13T-6 40.70 56.00 47.00 41.30 26.7 Journal Bearing Stock
    MHI TD05H 16G 48.30 68.00 56.00 49.10 37.9 Journal Bearing Stock
    MHI TD05H 18G 50.50 68.00 56.00 49.10 43.7 Journal Bearing Stock
    MHI TD05H 20G 52.50 68.00 56.00 49.10 47.4 Journal Bearing Stock
    MHI TD06SL2 20G 52.50 68.00 61.00 54.00 47.4 Journal Bearing Stock
    MHI TD06H 20G 52.50 68.00 67.00 58.80 47.4 Journal Bearing Stock
    IHI VF39/48/52 46.50 60.00 52.80 47.88 34.0 Journal Bearing Stock
    I posted this a while back in one of these threads.

  15. #40
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    Click here to enlarge Originally Posted by VargasTurboTech Click here to enlarge
    I posted this a while back in one of these threads.
    I know, I couldn't find in forum search, actually couldn't find it in google search either, then searched FP HTA3586r comparison and it came up...LOL trying to find a dyno comparison
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  16. #41
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    My HTA35r on my EVO hit 30psi at 4400 RPMs. That's a 2.0L I4 LOL. Not sure what RPM I was at when it was hitting 25psi but I think it was below 4K. I had an HTA86r that I never ran but when I bought it I was told it would spool 400RPMs slower than my HTA35r. I freaking love those turbos!!!
    2011 335is DCT, JB4 + MHD BEF, stage 2 LPFP, e50 + 50/50 meth, FBO, MT ET Streets when needed


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    Click here to enlarge Originally Posted by mjmarovi Click here to enlarge
    I know, I couldn't find in forum search, actually couldn't find it in google search either, then searched FP HTA3586r comparison and it came up...LOL trying to find a dyno comparison
    Attached Images Attached Images    

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    1 out of 1 members liked this post. Yes Reputation No
    Click here to enlarge35psi=winning!
    2011 335is DCT, JB4 + MHD BEF, stage 2 LPFP, e50 + 50/50 meth, FBO, MT ET Streets when needed


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    Good stuff in here
    2009 335i coupe back to stock...for now

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    After reading all the posts in this thread I'll have to try out the gtx3076r with .82 housing since i DD my car and 600whp is plenty for some weekend fun.

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    Click here to enlarge Originally Posted by ovitrix Click here to enlarge
    After reading all the posts in this thread I'll have to try out the gtx3076r with .82 housing since i DD my car and 600whp is plenty for some weekend fun.
    I honestly would suggest the .63. Spool will be better and you should be able to get very close to 600WHP with it, this is from what I have seen, we have done no in house testing to confirm this on the N54. The .82 will get there for sure, but you always want to go as small as you can for your HP requirements.

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    @tony, Does the .63 make such a big difference in spool compared to the .82? I would like 600whp on e85, no meth for me.

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    Click here to enlarge Originally Posted by ovitrix Click here to enlarge
    After reading all the posts in this thread I'll have to try out the gtx3076r with .82 housing since i DD my car and 600whp is plenty for some weekend fun.
    If you don't already have an open T3 manifold, twin scroll is the way to go. If I had to buy a Garrett for that power goal, I'd go a GTX3576R with the new twin scroll 1.04 turbine housing. The twin scroll housings generally respond a little better than the next size down open housing and flow roughly between the same open housing and the next size down.

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    Click here to enlarge Originally Posted by bradsm87 Click here to enlarge
    If you don't already have an open T3 manifold, twin scroll is the way to go. If I had to buy a Garrett for that power goal, I'd go a GTX3576R with the new twin scroll 1.04 turbine housing. The twin scroll housings generally respond a little better than the next size down open housing and flow roughly between the same open housing and the next size down.
    Gtx3576r with 1.04 is going to be much laggier than gtx3076r with .82. I just need something to get 600whp on e85 with more power band.

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    1 out of 1 members liked this post. Yes Reputation No
    Click here to enlarge Originally Posted by ovitrix Click here to enlarge
    Gtx3576r with 1.04 is going to be much laggier than gtx3076r with .82. I just need something to get 600whp on e85 with more power band.
    1.04 divided has better response than an open .82. divided and open housing A/Rs are not the same at all Mainly because the advertised A/R on divided housings does notfactor in the volume of the divider so they're more equivalent to the next size DOWN in open turbine housing A/R. The GTX3576R is a much better balanced turbo than the GTX3076R. I have a friend with a Toyota 1JZ that went from a GT3071R to a GTX3576R (both with open .82) and lost zero response and gained huge power at lower boost. The bigger turbine wherl has more 'leverage' to spin up the compressor wheel more efficiently.

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