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  • DCAFS's Avatar
    Today, 11:31 AM
    +100 I remember that exactly the same way.
    266 replies | 11345 view(s)
  • DavidV's Avatar
    Today, 11:31 AM
    DavidV started a thread G11: All new Alpina B7 in 7 Series
    his, ladies and gentlemen, is what a 600bhp, 193mph, modified BMW 7-Series looks like. It is the brand new Alpina B7. Unveiled by BMW USA, this is the third generation of Alpina’s 7-Series, and comes with a lot of very intriguing, very impressive numbers. Alpina don’t forget, has a long, fine, 50-year history of taking BMW models and adding numbers. The first of which involves power. Underneath the B7 lies BMW’s 4.4-litre twin-turbocharged V8. Here, Alpina has installed two specially developed turbos positioned within the ‘V’ of the engine, featuring bigger inlets and outlets. The entire cooling system and airflow has been rejigged too, to “remove bottlenecks” (we never realised the standard 4.4-litre V8 had a ‘bottleneck’). There are larger volume coolers, bigger, wider hoses and an air-to-water intercooler, along with external water and transmission coolers. The engine itself has had a going over too: there are new pistons, spark plugs and a stainless steel Alpina sports exhaust. This reduces back pressure and weight, and comes with the necessary valves for additional noise. The result? 600bhp, and a whopping 590lb ft of torque available from 3,000rpm (494lb ft is ready at just 2,000rpm). This revised engine is hooked up to an eight-speed automatic gearbox which has been beefed up to deal with the additional torque, driving all four wheels (though in the UK, we’ll probably get a RWD version). It’ll do the headline 0-60mph sprint in just 3.6secs – nearly a second quicker than its B7 predecessor – and rock on to a top speed of 193mph. That’s only a preliminary figure, too. It’ll probably go faster still… There’s air suspension combined with active dampers and roll stabilisation, and adjustable ride height. Like, for example, when you reach speeds of above 140mph and it drops by 0.8in. Neat. Want more? There’s active steering, Michelin Pilot Super Sport tyres, huge forged alloys, and rear-wheel steering. Oh, and bigger brakes. You’ll spot the trademark Alpina flourishes: stuff like the new aero-honed front and rear ends, those classic Alpina wheels, lots of leather and ceramic inserts inside, blue and green paint finishes and a nice head-up display. The new B7 will be available in the States from September this year, and prices – along with UK-specific info – will be revealed in due course. Always fancied a sub M-Power Seven? Step right up… Source Top Gear UK Pics:
    0 replies | 0 view(s)
  • cebrailbakan's Avatar
    Today, 11:15 AM
    I am just about to order cp forged Pistons. Before ordering , I had better to consult the community. Which one is more sensible regarding my goal. 10.2:1(stock) or 9.5:1. My goal is to hit 630 awhp with the following specs; BMW 2007 E90 AT 335xi Jb4/MHD custom backend flash Full bolt-ons Pure stage 2 turbos TFT inlets Forged internals 103 octane Race gas Direct port methanol injection All the best,
    0 replies | 0 view(s)
  • AdminTeam's Avatar
    Today, 11:14 AM
    Turbo_Jorge, we appreciate you taking the time to join.
    0 replies | 0 view(s)
  • AdminTeam's Avatar
    Today, 11:14 AM
    Welcome lanshark, take a look around, I think you will like what you see.
    0 replies | 0 view(s)
  • BostonBeemah's Avatar
    Today, 11:08 AM
    Noo! I was talking to Ari(YMB f80 m3) and he was telling about how crazy this car was! Wanted to see it run at New England Dragway this year :( Either way GLWS awesome bang for your buck here!
    10 replies | 409 view(s)
  • Cpt_Rum-bo's Avatar
    Today, 10:59 AM
    Cpt_Rum-bo replied to a thread Linear Throttle Issue in N54
    I'm starting to realise that. Hopefully it's just something we're missing.
    9 replies | 16 view(s)
  • TwistedTuning's Avatar
    Today, 10:58 AM
    TwistedTuning replied to a thread Linear Throttle Issue in N54
    what kind of issues were you having if you don't mind me asking?
    9 replies | 16 view(s)
  • Lswhat's Avatar
    Today, 10:57 AM
    Car is located in mass, yes still available!
    10 replies | 409 view(s)
  • Tony@VargasTurboTech's Avatar
    Today, 10:50 AM
    Have had zero luck with linear throttle on these cars, just flat out doesn't work well.
    9 replies | 16 view(s)
  • Cpt_Rum-bo's Avatar
    Today, 10:46 AM
    Cpt_Rum-bo replied to a thread Linear Throttle Issue in N54
    Ok, I'm going to start playing with that table and report back ... Thanks!
    9 replies | 16 view(s)
  • BostonBeemah's Avatar
    Today, 10:43 AM
    BostonBeemah replied to a thread My smoking addiction... in N54
    Well thats still almost 3 times the stock boost it was designed for but up to you. As you said, many people running with no issues but regardless, I truly believe it will lead to bigger issues down the road so might as well do it if the VC is off.
    115 replies | 4409 view(s)
  • TwistedTuning's Avatar
    Today, 10:41 AM
    TwistedTuning replied to a thread Linear Throttle Issue in N54
    seems to modify how agressive the throttle plate ramps open in reference to how you accuate the gas pedal. at least on my I8A0S XI. seemed to help quite a bit lowering that. Pic Attached for the range im saying to adjust.
    9 replies | 16 view(s)
  • Cpt_Rum-bo's Avatar
    Today, 10:37 AM
    Cpt_Rum-bo replied to a thread Linear Throttle Issue in N54
    For my knowledge ... What does this table do cause I never knew to adjust it?
    9 replies | 16 view(s)
  • TwistedTuning's Avatar
    Today, 10:36 AM
    TwistedTuning replied to a thread Linear Throttle Issue in N54
    lower cells in the range of 2000rpm to 6500rpm over to to .50 of the top axis by 50% and retest
    9 replies | 16 view(s)
  • Cpt_Rum-bo's Avatar
    Today, 10:33 AM
    Cpt_Rum-bo replied to a thread Linear Throttle Issue in N54
    Attached and never knew about this table.
    9 replies | 16 view(s)
  • TwistedTuning's Avatar
    Today, 10:31 AM
    TwistedTuning replied to a thread Linear Throttle Issue in N54
    whats your Throttle overload aggresion table look like?
    9 replies | 16 view(s)
  • Cpt_Rum-bo's Avatar
    Today, 10:27 AM
    Cpt_Rum-bo started a thread Linear Throttle Issue in N54
    Background info: my car is 2010 6sp FBO 135i and I've been tuning it myself for the last year or so running on E30. My issue is this and I've tested it in gears 2-6 and they all do the same thing. As I steadily add throttle, boost proportionally increases as expected to ~3psi. As I keep adding more throttle it always suddenly jumps to around 11psi, after which it proportionally increases to max as a keep adding throttle. I've tried so many things to change this but nothing seems to work. This makes coming out of a turn at the track very tricky as I have to try and predict the surge. Attached are the tables I adjusted that I felt should help. Hopefully others with more experience can show me where the issue is.
    9 replies | 16 view(s)
  • TwistedTuning's Avatar
    Today, 10:26 AM
    TwistedTuning replied to a thread DI Tuning Discussion in N54
    or it's because i just don't like it. everyone has their preference :D
    72 replies | 2082 view(s)
  • blackshan's Avatar
    Today, 10:23 AM
    Any clue to if there will be any weight savings compared to stock?
    59 replies | 3011 view(s)
  • Tony@VargasTurboTech's Avatar
    Today, 10:22 AM
    The vac WG system is prob one of the best parts of the N54 turbo set up. I used to hate it, actually swapped them out for boost controlled gates on a couple of test set ups. The Vac system is better in every single way except they can cause rattle if not set properly. First of all is range, you have the reality of 0-40+ psi boost range, show me a single boost controlled gate that can do that, EWG with 4 port solenoid or not, best case, absolute best you are gonna see 5-40 PSI range. If you want to run IWG, it gets much worse, if you want to run 30-35 psi expect to run a 14-17 psi spring meaning that is your low boost threshold. Next up is safety, having the gates normally open means in the event of a problem you instantly drop to zero boost, on the IWG you drop the low boost threshold which as stated can be as high as 17 psi. Also it is very hard to blow these gates open due to the very high vacuum force holding them shut, I have bench tested them with a spring gauge, they are harder to pull open then even a 40 psi IWG. If you hate the N54 Vac wastegate system its because you have not played with it long enough to appreciate it. I used to hate it as well, now I love it, and will run it even on my 1000WHP+ Capable stage 3 build that is upcoming.
    72 replies | 2082 view(s)
  • Tony@VargasTurboTech's Avatar
    Today, 10:14 AM
    Whats next up on the list? David is also selling his record breaking 135, and going with a 335is for the DCT, and some of our new cast turbos. Should be a mid 10 second car once he is done. Hope to you see you stay in the N54 realm! Keep me posted!
    10 replies | 409 view(s)
  • TwistedTuning's Avatar
    Today, 09:51 AM
    i haven't tested yet, maybe jyamona@motiv can chime in to. but there may be two ways to do this. One is disabling the cold start mode which would then run off your regular fueling tables. and two, possibly increase the cold start mode time duration and use the open loop tables to adjust fuel usage and timing and etc. to a more fuel effiecient mapping. but be aware, this will more than likely effect warmup, and im not sure if you have cats or not because i dont know your mods, but it may not play happy with catted cars. just a thought.
    4 replies | 127 view(s)
  • TwistedTuning's Avatar
    Today, 09:42 AM
    TwistedTuning replied to a thread DI Tuning Discussion in N54
    most late model NA cars actully run decently high pressure. hell my old ass 2004 mazda runs a steady 70psi. sometimes depending on temp it'll run 80psi. lots of ford/mazda and many audi and volvo cars i have seen run FP's in upwards of 55-60psi. i have the stupid vac WG's. lol
    72 replies | 2082 view(s)
  • jarmiltaylor's Avatar
    Today, 09:36 AM
    jarmiltaylor replied to a thread For Sale: FFTEC Top Mount Kit N54 in Buy/Sell - Parts
    How much
    23 replies | 1429 view(s)
  • 3000gt MR's Avatar
    Today, 09:35 AM
    3000gt MR replied to a thread DI Tuning Discussion in N54
    I think everyone getting wrapped around the 73 PSI limp mode isnt logically thinking about it. We cant go WOT 12psi of boost on the LP. Its only a limp mode to drive it in non boosted scenarios. This is probably 1 good reason BMW went with vacuum WG's that are NO rather than the pressure NC. So in all actuality you dont need that big of an injector to flow enough fuel for low power N/A. Your talking 170-210HP at most not taking in consideration all the limp tables that remove timing and everything else. 73PSI is actually pretty high considering most PI systems run 43.5-48 on N/A's.
    72 replies | 2082 view(s)
  • AdminTeam's Avatar
    Today, 09:01 AM
    Hey Shelly64O0: :text-welcomewave:
    0 replies | 15 view(s)
  • The Convert's Avatar
    Today, 08:51 AM
    Try e90. They are way more interested in bling with no regards to performance or cost.
    20 replies | 561 view(s)
  • Flinchy's Avatar
    Today, 08:23 AM
    Flinchy replied to a thread DI Tuning Discussion in N54
    it sounds awfully low doesn't it? I'm sure with such talented people on the case it'll be nutted out soon enough, then everyone can work around the stock fuel system with hard facts. if only we could control an injector on a bench it'd be sorted out in the next 24hrs hah.
    72 replies | 2082 view(s)
  • DavidV's Avatar
    Today, 08:20 AM
    Ever wondered what 0-300mph in less than four seconds would look like from the driver’s seat? Well, wonder no more. Former NHRA champ Shawn Langdon suckered a camera to his helmet at a recent running of his 10,000-odd bhp Top Fuel dragster to give us an idea of what such massive speed looks like. Fairly rapid is the answer, in case you were wondering. Skip to two minutes in (and turn your volume right down so you aren’t deafened) to see Langdon covering the 1/4mile in 3.77secs at 317mph.
    620 replies | 45627 view(s)
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