Close

Page 3 of 5 FirstFirst 12345 LastLast
Results 51 to 75 of 107
  1. #51
    Join Date
    Aug 2012
    Location
    Hayward, CA
    Posts
    7,931
    Rep Points
    4,044.9
    Mentioned
    325 Post(s)
    Rep Power
    0


    Yes Reputation No
    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    But what if they were to a do a manifold that would evenly split exhaust gases for even exhaust pulses similar to what they do with the S63? I mean you can have a single turbo I6 twin scroll right?
    When you figure out how to divide 3 and get an even number, let the world know, I think some math scholars would like to hire your for their staff. Its not possible, so you have 1.5 exhaust ports going into each scroll?

  2. #52
    Join Date
    Jan 2010
    Location
    SoCal
    Posts
    120,267
    Rep Points
    32,707.2
    Mentioned
    2130 Post(s)
    Rep Power
    328


    Yes Reputation No
    Click here to enlarge Originally Posted by VargasTurboTech Click here to enlarge
    When you figure out how to divide 3 and get an even number, let the world know, I think some math scholars would like to hire your for their staff. Its not possible, so you have 1.5 exhaust ports going into each scroll?
    I meant divide 6...
    Chrome Space Bar Issue: http://www.boostaddict.com/showthrea...338#post738338


    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
    : http://www.boostaddict.com/showthrea...r-kit-for-sale

  3. #53
    Join Date
    Sep 2012
    Location
    Harrisburg
    Posts
    1,281
    Rep Points
    1,556.3
    Mentioned
    43 Post(s)
    Rep Power
    16


    Yes Reputation No
    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    But what if they were to a do a manifold that would evenly split exhaust gases for even exhaust pulses similar to what they do with the S63? I mean you can have a single turbo I6 twin scroll right?
    You mean like the N55?
    Eppur si muove.

  4. #54
    Join Date
    Jan 2010
    Location
    SoCal
    Posts
    120,267
    Rep Points
    32,707.2
    Mentioned
    2130 Post(s)
    Rep Power
    328


    Yes Reputation No
    Click here to enlarge Originally Posted by ajm8127 Click here to enlarge
    You mean like the N55?
    Yes but splitting the exhaust pulse for this. Why wouldn't that work?
    Chrome Space Bar Issue: http://www.boostaddict.com/showthrea...338#post738338


    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
    : http://www.boostaddict.com/showthrea...r-kit-for-sale

  5. #55
    Join Date
    Dec 2011
    Location
    Clarksville, TN
    Posts
    3,945
    Rep Points
    2,539.6
    Mentioned
    46 Post(s)
    Rep Power
    26


    Yes Reputation No
    you can have a single turbo twin scroll I6 because the turbine housing is splitting up the 6 exhaust ports evenly. 3 each. the number of exhaust ports per turbine housing ports must be even. so.... TT V8, twin-twin scroll. yes. 2 exhaust ports per turbine housing port on each side. ST I6 twin scroll, yes. 3 exhaust ports per turbine housing port. ST twin scroll I4, yes. 2 exhaust ports per turbine housing port.

    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    But what if they were to a do a manifold that would evenly split exhaust gases for even exhaust pulses similar to what they do with the S63? I mean you can have a single turbo I6 twin scroll right?
    2011 335is DCT, moving to Italy, looking for new car friends Click here to enlarge

  6. #56
    Join Date
    Jan 2010
    Location
    SoCal
    Posts
    120,267
    Rep Points
    32,707.2
    Mentioned
    2130 Post(s)
    Rep Power
    328


    Yes Reputation No
    Click here to enlarge Originally Posted by bigdnno98 Click here to enlarge
    you can have a single turbo twin scroll I6 because the turbine housing is splitting up the 6 exhaust ports evenly. 3 each. the number of exhaust ports per turbine housing ports must be even. so....
    Yes and I'm saying couldn't they do a manifold that split those? So you split the split.
    Chrome Space Bar Issue: http://www.boostaddict.com/showthrea...338#post738338


    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
    : http://www.boostaddict.com/showthrea...r-kit-for-sale

  7. #57
    Join Date
    Dec 2011
    Location
    Clarksville, TN
    Posts
    3,945
    Rep Points
    2,539.6
    Mentioned
    46 Post(s)
    Rep Power
    26


    Yes Reputation No
    at that point you're splitting exhaust gas pulses though. not sure that's real efficient. you want to keep exhaust gas velocity up to spool the turbo faster.

    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    Yes and I'm saying couldn't they do a manifold that split those? So you split the split.
    2011 335is DCT, moving to Italy, looking for new car friends Click here to enlarge

  8. #58
    Join Date
    Jan 2010
    Location
    SoCal
    Posts
    120,267
    Rep Points
    32,707.2
    Mentioned
    2130 Post(s)
    Rep Power
    328


    Yes Reputation No
    Click here to enlarge Originally Posted by bigdnno98 Click here to enlarge
    at that point you're splitting exhaust gas pulses though. not sure that's real efficient. you want to keep exhaust gas velocity up to spool the turbo faster.
    I understand but in theory would that not allow two twin scroll turbos on an I6?
    Chrome Space Bar Issue: http://www.boostaddict.com/showthrea...338#post738338


    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
    : http://www.boostaddict.com/showthrea...r-kit-for-sale

  9. #59
    Join Date
    Jun 2013
    Location
    Bergen County, NJ
    Posts
    17
    Rep Points
    44.1
    Mentioned
    0 Post(s)
    Rep Power
    0


    Yes Reputation No
    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    You obviously are not familiar with BMW underrating their turbo motors and that 15% is a contrived standard. Not impressed...
    sure. a supercharged e92 m3 is sounding better and better everyday Click here to enlarge

  10. #60
    Join Date
    Dec 2011
    Location
    Clarksville, TN
    Posts
    3,945
    Rep Points
    2,539.6
    Mentioned
    46 Post(s)
    Rep Power
    26


    Yes Reputation No
    it is possible to do it yes. i think it would actually perform worse than TT single scroll though. it would prob be more laggy and have the same topend becuase it has less exhaust gas for spoolup and less for topend.

    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    I understand but in theory would that not allow two twin scroll turbos on an I6?
    2011 335is DCT, moving to Italy, looking for new car friends Click here to enlarge

  11. #61
    Join Date
    Jan 2010
    Location
    SoCal
    Posts
    120,267
    Rep Points
    32,707.2
    Mentioned
    2130 Post(s)
    Rep Power
    328


    Yes Reputation No
    Click here to enlarge Originally Posted by bigdnno98 Click here to enlarge
    it is possible to do it yes. i think it would actually perform worse than TT single scroll though. it would prob be more laggy and have the same topend becuase it has less exhaust gas for spoolup and less for topend.
    I understand what you are saying but if anyone could solve the engineering issues with this it would be BMW considering what we have seen from their turbo manifolds thus far. Just want to point out it isn't in theory impossible to have a twin turbo twin scroll I6 just that it would be very difficult to do and may not even be efficient.
    Chrome Space Bar Issue: http://www.boostaddict.com/showthrea...338#post738338


    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
    : http://www.boostaddict.com/showthrea...r-kit-for-sale

  12. #62
    Join Date
    Feb 2011
    Posts
    1,590
    Rep Points
    2,018.0
    Mentioned
    10 Post(s)
    Rep Power
    21


    Yes Reputation No
    Click here to enlarge Originally Posted by MisterEm Click here to enlarge
    You missed the main point and it is not fuel efficiency nor peak HP. A loss of 220 lbs over the 4 series variant (if true) is a major improvement and is "///M philosophy" to a T. Shave 220 lbs from your E9X M3 or E46 M3 and change NOTHING else - and it will transform the driving dynamics of the car - acceleration, handling, turn-in and braking.

    Secondly, the throttle response component you mention is mere speculation. I doubt the difference in responsiveness between the outgoing powerplant and the new one is the chasm you implied. The motor will be less responsive than the N/A V8 no doubt - but not on par with the turbo-lag conspiracy I have been hearing from E9X owners. If we use the current turbo charged motors in the fleet as a comparison - F30 328, 335, and the 328d - we should be expecting slightly better responsiveness to merit the M badge.

    I want to see the final weight of the sedan, and a stock dyno plot (particularly the torque curve) before I cast final judgement and a deposit.
    Right - so my point stands. Every motor from M GmBH has been NA - for the exact same reason that the GT3 uses an NA engine, but the GT2 doesn't. Because a purist's sports car should have razor sharp throttle response to balance the car mid-corner (amongst other things) - with a turbocharged car, this simply can't be done. You cannot have the same response - therefore, I don't understand their decision. That's all I mean. They are dropping 2 cylinders and adding a turbo for sake of efficiency - and they don't need to do this. This is their proper sports car. I am sure the throttle response WILL be much improved as you allude, but I just don't think any turbo motor is going to be like a NA motor. The Nissan motor in the MP4 is one I would love to check out - it's supposedly really good. I just think they are taking steps back on the engineering in the motor department - however, yes - the chassis will be phenominal - I would be my car on it. Click here to enlarge

  13. #63
    Join Date
    Jan 2010
    Location
    SoCal
    Posts
    120,267
    Rep Points
    32,707.2
    Mentioned
    2130 Post(s)
    Rep Power
    328


    Yes Reputation No
    Click here to enlarge Originally Posted by inlineS54B32 Click here to enlarge
    Right - so my point stands. Every motor from M GmBH has been NA - for the exact same reason that the GT3 uses an NA engine, but the GT2 doesn't. Because a purist's sports car should have razor sharp throttle response to balance the car mid-corner (amongst other things) - with a turbocharged car, this simply can't be done. You cannot have the same response - therefore, I don't understand their decision. That's all I mean. They are dropping 2 cylinders and adding a turbo for sake of efficiency - and they don't need to do this. This is their proper sports car. I am sure the throttle response WILL be much improved as you allude, but I just don't think any turbo motor is going to be like a NA motor. The Nissan motor in the MP4 is one I would love to check out - it's supposedly really good. I just think they are taking steps back on the engineering in the motor department - however, yes - the chassis will be phenominal - I would be my car on it. Click here to enlarge
    I don't know why the M3 can't stay GT3 to the 335's 911 Turbo.
    Chrome Space Bar Issue: http://www.boostaddict.com/showthrea...338#post738338


    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
    : http://www.boostaddict.com/showthrea...r-kit-for-sale

  14. #64
    Join Date
    Jan 2010
    Location
    SoCal
    Posts
    120,267
    Rep Points
    32,707.2
    Mentioned
    2130 Post(s)
    Rep Power
    328


    Yes Reputation No
    Click here to enlarge Originally Posted by inlineS54B32 Click here to enlarge
    The Nissan motor in the MP4
    Nissan motor? It's designed by Ricardo.
    Chrome Space Bar Issue: http://www.boostaddict.com/showthrea...338#post738338


    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
    : http://www.boostaddict.com/showthrea...r-kit-for-sale

  15. #65
    Join Date
    Feb 2011
    Posts
    1,590
    Rep Points
    2,018.0
    Mentioned
    10 Post(s)
    Rep Power
    21


    Yes Reputation No
    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    I don't know why the M3 can't stay GT3 to the 335's 911 Turbo.
    Agreed - 100%. I don't understand why they can't make a bad-ass m335is M-sport++ Lime Rock edition AND a NA bad-assM3. I would think they would sell MORE cars to be completely honest.

  16. #66
    Join Date
    Feb 2011
    Posts
    1,590
    Rep Points
    2,018.0
    Mentioned
    10 Post(s)
    Rep Power
    21


    Yes Reputation No
    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    Nissan motor? It's designed by Ricardo.
    For some reason I remember reading it was a Nissan sourced motor, I don't know enough about it though.

  17. #67
    Join Date
    Jan 2010
    Location
    SoCal
    Posts
    120,267
    Rep Points
    32,707.2
    Mentioned
    2130 Post(s)
    Rep Power
    328


    Yes Reputation No
    Click here to enlarge Originally Posted by inlineS54B32 Click here to enlarge
    Agreed - 100%. I don't understand why they can't make a bad-ass m335is M-sport++ Lime Rock edition AND a NA bad-assM3. I would think they would sell MORE cars to be completely honest.
    The main reason I can think of is sharing motors, parts, and keeping costs lower for higher profit margins and being able to charge for performance software on the M models so making even more money.
    Chrome Space Bar Issue: http://www.boostaddict.com/showthrea...338#post738338


    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
    : http://www.boostaddict.com/showthrea...r-kit-for-sale

  18. #68
    Join Date
    Apr 2010
    Location
    Earth
    Posts
    5,171
    Rep Points
    526.1
    Mentioned
    4 Post(s)
    Rep Power
    6


    Yes Reputation No
    Junk

  19. #69
    Join Date
    Dec 2011
    Location
    Clarksville, TN
    Posts
    3,945
    Rep Points
    2,539.6
    Mentioned
    46 Post(s)
    Rep Power
    26


    Yes Reputation No
    I completely agree with this. you have the badass factory boosted car for people like me that want to go fast in a straight line for cheap and the have the factory high revving N/A car for track people. with that being said, getting more HP out of an N/A motor (s65) while keeping 50/50 weight distrbution was going to be real difficult for BMW. Unless, they went straight GT3 with it, but then what does your average old person that only buys it because it's an M3 and will never track it, what does he buy?

    Click here to enlarge Originally Posted by inlineS54B32 Click here to enlarge
    Agreed - 100%. I don't understand why they can't make a bad-ass m335is M-sport++ Lime Rock edition AND a NA bad-assM3. I would think they would sell MORE cars to be completely honest.
    2011 335is DCT, moving to Italy, looking for new car friends Click here to enlarge

  20. #70
    Join Date
    Dec 2011
    Location
    Clarksville, TN
    Posts
    3,945
    Rep Points
    2,539.6
    Mentioned
    46 Post(s)
    Rep Power
    26


    Yes Reputation No
    Agreed. I think they've lost touch with the enthusiast buyer and only care about profit/sales volume at this point.

    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    The main reason I can think of is sharing motors, parts, and keeping costs lower for higher profit margins and being able to charge for performance software on the M models so making even more money.
    2011 335is DCT, moving to Italy, looking for new car friends Click here to enlarge

  21. #71
    Join Date
    Jan 2010
    Location
    SoCal
    Posts
    120,267
    Rep Points
    32,707.2
    Mentioned
    2130 Post(s)
    Rep Power
    328


    Yes Reputation No
    Click here to enlarge Originally Posted by bigdnno98 Click here to enlarge
    getting more HP out of an N/A motor (s65) while keeping 50/50 weight distrbution was going to be real difficult for BMW
    Why? Porsche gets 500 hp (underrated) out of a freaking 4.0 liter flat-6. BMW has up to 4.4 liters and even 4.6 liters to work with in the S65.

    The problem isn't power with the V8 it's the weight gain of the M models.

    You throw a 4.4 liter 9000 rpm 500 horsepower V8 in a 3200 pound M3 with DCT and what the hell more do you need? Now that's something actually worth almost $80k. Plus just imagine that motor with a supercharger. Kidding. Maybe.
    Chrome Space Bar Issue: http://www.boostaddict.com/showthrea...338#post738338


    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
    : http://www.boostaddict.com/showthrea...r-kit-for-sale

  22. #72
    Join Date
    Nov 2009
    Posts
    994
    Rep Points
    938.4
    Mentioned
    15 Post(s)
    Rep Power
    10


    Yes Reputation No
    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    Why? Porsche gets 500 hp (underrated) out of a freaking 4.0 liter flat-6. BMW has up to 4.4 liters and even 4.6 liters to work with in the S65.

    The problem isn't power with the V8 it's the weight gain of the M models.

    You throw a 4.4 liter 9000 rpm 500 horsepower V8 in a 3200 pound M3 with DCT and what the hell more do you need? Now that's something actually worth almost $80k. Plus just imagine that motor with a supercharger. Kidding. Maybe.
    I agree. If the rumors about the 3300 lbs are true I would think the S65 would be more suitable for this chassis than it was for the e92.
    ​#Chuckstrong

  23. #73
    Join Date
    Jan 2010
    Location
    SoCal
    Posts
    120,267
    Rep Points
    32,707.2
    Mentioned
    2130 Post(s)
    Rep Power
    328


    Yes Reputation No
    Click here to enlarge Originally Posted by KB Click here to enlarge
    I agree. If the rumors about the 3300 lbs are true I would think the S65 would be more suitable for this chassis than it was for the e92.
    Less weight benefits everything. The V8 is more than powerful enough even as it sits.
    Chrome Space Bar Issue: http://www.boostaddict.com/showthrea...338#post738338


    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
    : http://www.boostaddict.com/showthrea...r-kit-for-sale

  24. #74
    Join Date
    Nov 2009
    Posts
    994
    Rep Points
    938.4
    Mentioned
    15 Post(s)
    Rep Power
    10


    Yes Reputation No
    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    Less weight benefits everything. The V8 is more than powerful enough even as it sits.
    Boat
    ​#Chuckstrong

  25. #75
    Join Date
    Jan 2010
    Location
    SoCal
    Posts
    120,267
    Rep Points
    32,707.2
    Mentioned
    2130 Post(s)
    Rep Power
    328


    Yes Reputation No
    Click here to enlarge Originally Posted by KB Click here to enlarge
    Boat
    What's a boat?
    Chrome Space Bar Issue: http://www.boostaddict.com/showthrea...338#post738338


    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
    : http://www.boostaddict.com/showthrea...r-kit-for-sale

Page 3 of 5 FirstFirst 12345 LastLast

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts
  •