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  • AdminTeam's Avatar
    Today, 02:50 AM
    Welcome Klpayne31, take a look around, I think you will like what you see.
    0 replies | 48 view(s)
  • Sticky's Avatar
    Today, 12:24 AM
    The BMW M3/M3 and Porsche 911 have quite a bit in common this generation. Why? Because both have twin turbocharged and direct injected 3.0 liter six-cylinder powerplants. You can also get either with a dual clutch or manual transmission with power sent to the rear wheels. Let's look over the specifications of the motors: 9A2 3.0 991.2 Carrera Horsepower: 370 Torque: 332 lb-ft Boost Pressure: 13.1 psi Bore x Stroke: 91mm x 76.4mm Redline: 7500 rpm Compression Ratio: 10.0:1 Intercooler: Air to Air Turbos: 49mm compressor/45mm turbine Piston Speed FPM: 3759.842 BMW S55 Horsepower: 425 Torque: 406 lb-ft Boost Pressure: 18.1 psi Bore x Stroke: 84.0mm x 89.6mm Redline: 7500 rpm Compression Ratio: 10.2:1 Intercooler: Water to Air Turbos: 51mm compressor/43mm turbine Piston Speed FPM: 4409.449 Obviously, we all know the S55 engine is highly underrated by BMW. Recently, when Porscheboost was doing some testing at VF-Engineering on their Mustang dyno the opportunity presented itself to overlay a stock S55 with the stock PorscheBoost project 991.2. Here is the result, both dual clutch examples stock on 91 octane pump fuel: What is interesting to note is that the spool on the 991.2 Carrera 9A2 is much better than the BMW S55. The Carrera is spooled by 2400 rpm and the S55 has more lag by roughly 1000 rpm. That is significant. You will notice once spooled the curves are fairly similar. The S55 does have more peak torque and horsepower but the difference is not as large as one would expect. The difference in torque is only 3 lb-ft at the wheels. A wash. Not bad for what on paper is supposed to be 74 lb-ft. The 911 is making more torque than Porsche is letting on by quite a bit. The difference in peak horsepower is 15 at the wheels. This is attributed to the S55 making power to 6850 rpm while the 9A2 is tailing off past 6400 rpm. Both torque curves are dropping hard but the S55 maintains a top end edge from 6400-6800 rpm. Revving either engine out to their 7500 rpm redline does not gain anything and short shifting is preferred for maximum performance. It is interesting that the 9A2 engine with less boost and slightly lower compression is so close. It is also interesting the spool is so much better but Porsche likely concentrated very hard on quick spool down low to appease naturally aspirated purists who would complain about lag. The engine comes on strongly and quickly. It is no wonder the 9A2 knocked out the S55 in its category at the 2016 International Engine of the Year Awards. In an ideal world we would be able to toss a Carrera S and a GTS onto this dyno to see how Porsche is really separating their 9A2 motors. We do have Dynojet numbers posted for the Carrera and S but the GTS is the variant we are all eagerly awaiting to see. This is the difference between the turbocharged 991.2 Carrera S 3.0 and the naturally aspirated 991.1 Carrera 3.4: BMW of course has the Competition Package version of the S55 and now the CS version in an even higher state of tune essentially doing what Porsche does in offering the same motor in different flavors. The main difference though is that Porsche changes the turbochargers and not just the software offering greater differentiation and tuning value in this respect. What is clear is that the turbo era is elevating power and torque to heights we have never seen and it will result in a far greater proliferation of tuning for Porsche and BMW models than ever before.
    0 replies | 18 view(s)
  • Sticky's Avatar
    Yesterday, 11:29 PM
    The C7 Audi RS6 is not sold in the USA which we may never forgive Audi for. Not everyone needs or wants an SUV and a performance wagon makes a lot of sense. Ok, enough whining about Audi, how does the RS6 stack up to a Nissan GTR? The GTR is not light but in this company is the much lighter car by roughly 900 pounds. They are both all wheel drive but the GTR uses a dual clutch transmission compared to the more traditional automatic of the Audi. The RS6 obviously has the 4.0 liter turbocharged Audi V8 and the GTR has a slightly smaller VR38DETT V6. So which is quicker? The RS6. Unfortunately, no data is provided and it looks to be a rather short drag race. Did the GTR even do a full launch? The GTR should be favored based on test results and the weight advantage compared to the RS6. Without any supporting data, it just looks like this video was put together for clicks by providing a controversial result.
    4 replies | 28 view(s)
  • Sticky's Avatar
    1 replies | 304 view(s)
  • Pete400's Avatar
    Yesterday, 09:53 PM
    Have been running the Kleemann Kbox (adjustable piggy back tune) on my c400. Driveability and throttle response have significantly improved (as well as slight improvement in mpg). Performance is noticeably different, but that is subjective so here are some numbers... Using a new g-tech pro SS, the car can launch from 0-60 between 3.84-4.0 sec consistently. This timer uses rollout in the measurement, so +0.3 sec its running 4.14-4.3 sec all day. Also noticed significant improvement in the 1/4 mile, running from 13.3 at 105 mph stock, to 12.7 at 109 mph with the tune on. On a side note this new g-tech timer was within 0.1 sec and 1 mph of the trap on all the runs at the track (over or under). Overall considering it is removable, Im happy with the gains. Posted some pics of the results in previous posts.
    0 replies | 41 view(s)
  • Sticky's Avatar
    Yesterday, 09:28 PM
    Looks like Peterson is going to the Saints. Personally, I think he's done. Could offer value in fantasy though.
    58 replies | 17602 view(s)
  • Sticky's Avatar
    38 replies | 4713 view(s)
  • Pete400's Avatar
    Yesterday, 09:12 PM
    Sure no problem, is it still cool if I post numbers without the images? Im all self conscious about it now :) lol
    38 replies | 4713 view(s)
  • Sticky's Avatar
    Yesterday, 09:01 PM
    That's ok, it happens. Would you put this in its own thread though? That way we can get a discussion on this Kbox for the C400 going.
    38 replies | 4713 view(s)
  • Sticky's Avatar
    Yesterday, 08:21 PM
    If there is only one thing Trump accomplished I'd be happy with it being term limits in Congress.
    900 replies | 592278 view(s)
  • Sticky's Avatar
    Yesterday, 08:20 PM
    Agreed. I don't like it either but he better get back on track and stop playing the game they are pushing him into.
    900 replies | 592278 view(s)
  • Torgus's Avatar
    Yesterday, 05:51 PM
    I hate our 2 party system too man. It almost feels like we will never get a real 3rd party candidate, let alone one that will be allowed to debate on a national level. So much BS money involved, favors, etc.
    900 replies | 592278 view(s)
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