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    VWVortex


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    Type: Posts; User: mainstayinc

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    1. Glad I can be helpful! Let me check into your...

      Glad I can be helpful! Let me check into your specific question and get back to you Monday.
    2. Below I overlaid the G25-660 and G30-770 on 2470...

      Below I overlaid the G25-660 and G30-770 on 2470 CC displacement. You will lose a few hundred RPMs in spoolup but gain more up top if you are willing to increase your boost. I marked a point...
    3. Below I overlaid the G25-550 and G25-660 on 2.2L...

      Below I overlaid the G25-550 and G25-660 on 2.2L displacement (81mm bore x 86.4mm stroke x 5 cylinders = 2226 CC's). I think the G25-660 is a much better fit at your displacement. I can overlay the...
    4. Not a problem. There's one other request before...

      Not a problem. There's one other request before yours.
    5. Thanks, man:thumbup:

      Thanks, man:thumbup:
    6. :thumbup:

      :thumbup:
    7. I would be inclined to go with the larger 0.92...

      I would be inclined to go with the larger 0.92 A/R on 2.5L displacement. But I would see what other people are using for this engine to see what works best.
    8. [QUOTE=Pontxio;113801091] Yes, I carefully...

      Yes, I carefully studied the camshaft for the S1000RR engine and am in the process of putting together a Catcams-style camshaft card for you with some suggestions. Here is a preview for you (see...
    9. I usually try to match the ID of the exhaust...

      I usually try to match the ID of the exhaust runners to the diameter of the exhaust port. In my case, I used 1 1/4 inch stainless steel schedule 40 pipe on my 2.1L 4 cylinder as that almost...
    10. [1] Yes, expect very good spool with the EFR 7670...

      [1] Yes, expect very good spool with the EFR 7670 on 2.8L displacement and twin-scroll turbine housing.
      [2] I would definitely build a new T4 manifold for this setup as that is better suited for a...
    11. Below I overlaid the original GT3076R and the new...

      Below I overlaid the original GT3076R and the new G25-660 on 2470 CC displacement (99.75mm bore x 79mm bore x 4 cylinders = 2469.5 CC's). As you can see, the new 67mm G-series turbo has a way better...
    12. Sorry for the delay. I think the EFR 7163 is...

      Sorry for the delay. I think the EFR 7163 is somewhat undersized for 2.8L displacement. Below I overlaid the EFR 7163 and the G25-660 on 2.8L displacement (84mm bore x 84mm stroke x 6 cylinders =...
    13. Sure. Let me look into that. It may be a day or...

      Sure. Let me look into that. It may be a day or two as I am a little busy ATM.
    14. Thanks for posting back in this thread! Those...

      Thanks for posting back in this thread! Those are great results.:thumbup: The G25-660 must be way different than you older generation GT35.
    15. [1] Well, if you look at the [BLUE] map, boost...

      [1] Well, if you look at the [BLUE] map, boost should start to come on between 1800 and 2300 RPMs on 2.5L displacement. Expect full boost by 3800 to 4300 RPMs
      [2] I might take you up on that. ...
    16. In order to make 700 to 800 WHP on an AWD...

      In order to make 700 to 800 WHP on an AWD platform, you will have to make 840 to 960 HP at the crank. Using a conservative 11 HP per lb. of air per minute for E85, that equals 76 to 87 lbs. of air...
    17. Let me check into that and get back to you. I...

      Let me check into that and get back to you. I have another request pending that I hope to get to tomorrow (Friday).

      -John (mainstayinc).
    18. I researched turbo camshafts for the BMW S1000RR...

      I researched turbo camshafts for the BMW S1000RR before I posted my analysis and could not find anyone who sold aftermarket camshafts for this engine. I would contact a specialist like Catcams or...
    19. Likewise! Let me check into that and post...

      Likewise! Let me check into that and post something later tomorrow. I'll be on the road all day Thursday.

      -John (mainstayinc).
    20. About the BMW S1000RR...

      About the BMW S1000RR:

      https://i.imgur.com/R8jXviy.jpg

      Engine Specifications:

      https://i.imgur.com/AL8FVT2.jpg

      After looking at the compressor map of the G25-550 on 1.0L displacement, I...
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