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  • Sticky's Avatar
    Yesterday, 09:02 PM
    This is certainly an interesting development and our users will agree that the more aftermarket options they have the better. Evolution of Speed, who we have never heard of previously and have no affiliation with, is set to release their N5X intake manifold which will gain a lot of interest from N54 and likely N55 owners as well. The obvious here is that guys would want to pair this with methanol injection or port injection for supplemental fuel. The expected price point and design makes that aspect attractive. This would not be something that N54 or N55 owners expecting big gains over the OEM manifold would benefit from but for more hardcore owners making big power with say a single turbo upgrade. Exactly the kind of power junkies who are on BimmerBoost. It will be interesting to see the results from members who buy this product and what the options will be such as the finishes, integrated port injection, etc.
    54 replies | 444 view(s)
  • Sticky's Avatar
    07-29-2015, 09:51 PM
    This is something we are going to see more of as the new M3 and M4 battle with the 335i and 135i models equipped with the N54 (with N55's more and more getting into the mix as well). This goes down about as one would expect with the F80 M3 pulling up top. The M3 has the advantage of the DCT transmission. The Eurocharged ECU flash tune with downpipes as this M3 has boosts things considerably. Basically, a bolt on F80 M3 should make a bit more power than a bolt on E9X 335i N54 but the N54 has some additional tricks up its sleeve that this particular example is not running including inlets and E85. This particular N54 is running meth injection though and the F80 M3 S55 is not which is a factor although it is on race gas. Ultimately, these are both 3.0 liter twin turbo direct injected BMW inline-6 motors and which is faster comes down to the amount of mods and really money spent. The M3 will ultimately have the advantages of the DCT transmission and the higher redline. It also is the more complete package to begin with. It's a bit of a shame these are chase view runs on the video (it should be a crime really) but it goes to show how quick a tune and downpipes M3/M4 is and how it stacks up to a bolt on N54.
    25 replies | 901 view(s)
  • Sticky's Avatar
    07-28-2015, 07:22 PM
    An interesting photo was posted from a BMW technical document on the BimmerBoost forums that gives a quick and easy overlay of the BMW N54 and N55 valvetrains including their VANOS camshaft adjustment ranges. The N54 and N55 of course are similar turbocharged and direct injected inline-6 motors sharing the same bore and stroke. They clearly are tuned a bit differently (due to the N55 being single turbo for one) and the N55's addition of Valvetronic plays a role. The N55 has a wider range of intake and exhaust VANOS adjustment as well as larger intake valve lift and cam duration compared to the N54 as the tech document highlights. Potentially the N55 can breathe better up top namely with a large turbo upgrade although tuning VANOS as well as Valvetronic is complicated. VANOS alone is a difficult system to tune and we have yet to see aftermarket VANOS cams working for the N54 or N55 motors. An interesting comparison nonetheless.
    27 replies | 876 view(s)
  • COBB Tuning's Avatar
    07-29-2015, 07:57 PM
    Cobb's Porsche 991 Turbo tuning development continues and they are moving rapidly. Below are results for Cobb Stage I and Stage II OTS (off the shelf) tuning. These numbers are results anyone can expect with the OTS tunes and of course they can be further customized if one wishes. The torque gains massive with just the Stage I OTS tune on pump gas. They were able to pick up an additional 107 lb-ft of torque at the wheels. Stage II on pump gas takes this to 652 lb-ft of torque at the wheels for a gain of 120 lb-ft. The biggest horsepower gains come on race gas but that raises the question of diminishing returns due to cooling issues. PorscheBoost of course already explored 991 Turbo and Turbo S heat soak issues and Cobb is well aware of cooling limitations especially when tuning. Cobb is working on intercooler upgrades to overcome any limitations and push things forward. Impressive work thus far. Our Porsche Experts have been hard at work making sure we’re all set for the Porsche 991 Turbo Accessport release which is getting closer by the day! The most fun part of that process is strapping the cars down to the dyno and seeing just how much power they make after a bit of tuning. We were extremely lucky to be able to work with Porsche of Colorado Springs for the Pikes Peak International Hill Climb. That experience enabled us to learn a TON about these cars and how they react to different tuning strategies, aftermarket bolt-on parts, or differences in fuel quality. Below, we’ll take a look at some of the power gains we’ve seen. First, on an otherwise stock car followed by gains associated with an upgraded exhaust and appropriate tuning. As a note, the data in the graphs was recorded on two separate days however the delta from the baseline pulls remains accurate. Seen here is our initial Stock Baseline pull on 91 octane fuel along with a Stage 1 OTS map using 93 octane fuel. A Stage 1 map would be used on an otherwise completely stock vehicle. Power under the curve is significantly increased throughout the low and mid range. Maximum gains of around 60whp are seen between 3000-4000 RPM. Most impressive is the increase in low-end torque, with gains of over 100 ft/lbs! Next up, Stage 2. A Stage 2 map is calibrated to be used on a car with upgraded exhaust. As is evident with the power gains, the motor is able to flow a significantly greater amount of air with the freer flowing exhaust. With gains of 120 ft/lbs down low and nearly 100 hp at peak, the cars become a whole new animal. We are able to be a touch more aggressive utilizing 100 octane fuel, this will be a great option for customers interested in tracking their car where detonation resistance is key. Stay tuned as we continue development on this platform. At this point, the cars will really need an improved cooling system to make any additional power. We’re already in contact with top intercooler providers in the industry with intentions of overcoming the next bottleneck in power.
    18 replies | 316 view(s)
  • Sticky's Avatar
    07-30-2015, 01:35 AM
    Very impressive Stage 2 M178 tuning numbers here from Renntech. As you may recall, Renntech started work on the M178 motor early this year. They showed a baseline of 531 crank horsepower and 472 wheel horsepower. They have the AMG GT S with their turbo upgrade and downpipes up to 682 crank horsepower or 625 at the wheels on their dyno now. Those are some major gains. Torque alone is up by 167 lb-ft over stock. What is also nice to see is how flat the M178 torque curve is once the motor spools and how the torque curve does not really start to drop hard until past 6500 rpm. The M178 in general is definitely breathing better up top than the M177 in the C63 especially this example. Renntech previously shared an acceleration video of their intermediate tuned AMG GT S running up to 195 miles per hour and this time they take it to 199 miles per hour with the Stage 2 setup. The car accelerates hard with the Stage 2 package and the gearshifts look to be about instant. They get to 198 miles per hour in no time. It's incredible how easily the car gets there and with no drama whatsoever. This car is fast. It will be interesting to see how much further Renntech takes it on the turbo upgrade with race gas but for now they obviously are not pushing the transmission beyond its limits.
    12 replies | 480 view(s)
  • quattr0's Avatar
    07-29-2015, 09:14 AM
    The boys at MT stated the trans in the new C63 S is as good as PDK. I thought it still has same ole trans w older model?
    17 replies | 155 view(s)
  • Sticky's Avatar
    07-29-2015, 10:11 PM
    Ford held a press day for the upcoming GT350 and GT350R Mustang models at the 2.0 mile long Grattan Raceway in Michigan. Ford provided some key information on the GT350 and GT350R including that their curb weights are 3760 pounds and 3650 pounds respectively. Not light but not super heavy either. Oh, and how about the fact the GT350R beats the 911 GT3 by 1/10 of a second at this racetrack? That is the Ford press claim. Things may change on different days on different tracks but what it shows is that on the racetrack it is a driver's race between the GT350R and the 911 GT3. That is incredible considering the GT350R is less than half the price.
    13 replies | 199 view(s)
  • Sticky's Avatar
    07-31-2015, 01:12 AM
    If this picture offends you then you somehow wandered onto the wrong website. Our regular readers will understand and even identify with this. Go ahead and laugh.
    7 replies | 744 view(s)
  • Sticky's Avatar
    07-30-2015, 01:24 AM
    Very impressive Stage 2 M178 tuning numbers here from Renntech. As you may recall, Renntech started work on the M178 motor early this year. They showed a baseline of 531 crank horsepower and 472 wheel horsepower. They have the AMG GT S with their turbo upgrade and downpipes up to 682 crank horsepower or 625 at the wheels on their dyno now. Those are some major gains. Torque alone is up by 167 lb-ft over stock. What is also nice to see is how flat the M178 torque curve is once the motor spools and how the torque curve does not really start to drop hard until past 6500 rpm. The M178 in general is definitely breathing better up top than the M177 in the C63 especially this example. Renntech previously shared an acceleration video of their intermediate tuned AMG GT S running up to 195 miles per hour and this time they take it to 199 miles per hour with the Stage 2 setup. The car accelerates hard with the Stage 2 package and the gearshifts look to be about instant. They get to 198 miles per hour in no time. It's incredible how easily the car gets there and with no drama whatsoever. This car is fast. It will be interesting to see how much further Renntech takes it on the turbo upgrade with race gas but for now they obviously are not pushing the transmission beyond its limits.
    12 replies | 58 view(s)
  • Sticky's Avatar
    07-31-2015, 04:40 PM
    The new CTS-V is finally getting into the hands of the magazines and Car and Driver is the first to publish their test figures. Now, before we delve into them we want to raise a bit of a red flag with Car and Driver's Cadillac results considering their major disparity in ATS-V testing. Is Car and Driver in bed with Cadillac? Is Cadillac sending tweaked press cars? Are the new Cadillac V models just spectacularly quick? Is it all of the above? Is it none? In all likelihood the CTS-V performs exactly as the numbers here show. We just want to point out that magazine numbers are harder to trust these days and to get the complete picture we need to see some independent results as well as a comparison with its competition for context. With that out of the way let's look at the figures for the 8L90 8-speed automatic equipped version. 0-60 in 3.6 which is highly impressive for a car with this level of torque and a positive displacement blower. 0-100 in 7.5. The 1/4 mile comes in 11.8 seconds at 124 miles per hour. It is essentially a lighter and faster M5. The CTS-V weighs 4129 pounds which puts it at roughly 250 pounds less than the BMW F10 M5 and roughly 450 pounds less than the Mercedes-AMG E63 S and Audi RS7. How about that, the Cadillac is the lightest of the bunch. Unfortunately Car and Driver did not provide a weight distribution figure but the Cadillac is likely balanced better than the nose heavy RS7 and E63. With grip in abundance as highlighted by .98g on the skidpad this car is going to be more playful than its rivals when hitting the turns. That is kind of the point. This thing can do more than just go fast in a straightline even though it should rule the highway compared to its German competition. The Cadillac is the lightest, likely the best handling, and also likely the autobahn king. Things sure are changing. Cadillac sure is pricing themselves like the Germans. The as tested figure of $95,290 is not cheap and certainly creeping up there. The CTS-V is offering German levels of refinement though, arguably better handling and performance, and is cheaper depending on how the cars are optioned out. It certainly is fair for Cadillac to price themselves the way they are considering what the vehicle offers. We will have to wait and see how it stacks up in direct comparisons but things are looking good thus far. The CTS-V is poised to be the cream of the luxury super sedan crop offering the best all around blend of price, performance, comfort, driver involvement, and luxury. Those traits used to be BMW's recipe for success. Specifications VEHICLE TYPE:front-engine, rear-wheel-drive, 5-passenger, 4-door sedan PRICE AS TESTED:$95,290 (base price: $84,990) ENGINE TYPE:supercharged and intercooled V-8, aluminum block and heads DISPLACEMENT:376 cu in, 6162 cc Power: 640 hp @ 6400 rpm Torque: 630 lb-ft @ 3600 rpm TRANSMISSION:8-speed automatic with manual shifting mode DIMENSIONS: Wheelbase: 114.6 in Length: 197.7 in Width: 72.2 in Height:57.2 in SAE interior volume: F:61 cu ft R: 42 cu ft Trunk: 14 cu ft Curb weight: 4129 lb C/D TEST RESULTS: Zero to 60 mph: 3.6 sec Zero to 100 mph: 7.5 sec Zero to 130 mph: 13.6 sec Zero to 150 mph: 17.4 sec Zero to 170 mph: 25.8 sec Rolling start, 5-60 mph: 3.8 sec Top gear, 30-50 mph: 2.0 sec Top gear, 50-70 mph: 2.1 sec Standing ¼-mile: 11.8 sec @ 124 mph Top speed (drag ltd, mfr's claim): 200 mph Braking, 70-0 mph: 149 ft Roadholding, 300-ft-dia skidpad: 0.98 g FUEL ECONOMY: EPA city/highway (C/Dest): 14/20 mpg
    10 replies | 165 view(s)
  • Sticky's Avatar
    07-30-2015, 05:21 PM
    Improving on the factory BMW airbox design for the F80 M3 and F82 M4 is not easy. It is not like the BMW engineers do not design efficient parts themselves but they do have to work within a certain budget and with BMW suppliers as well as deal with strict regulations. As we all know there is room to improve on many BMW factory parts including something like the intake system on the S55 motor in the F80 M3 and F82 M4. Gains really show when someone is running a tune or higher boost as the factory system becomes more of a restriction at that point. Look at the dyno results on a Mustang dynamometer here from AWE-Tuning. The aftermarket part and the factory part perform about the same until the motor is past 3k rpm. At that point the S-Flo system provides greater flow on the test car which is running their piggyback tune and exhaust system. At the factory power levels gains will be minimal but this is a mod for that person trying to extract every last horse and remove restrictions. What the dyno results prove is that the factory intake can be made more efficient and this pays dividends as the motor is pushed harder. Is this system worth the $1595 they are asking for it? Well, that is up to you. For the cost conscious the recently released BMS system is quite the value alternative. The AWE piece sure is pretty though and offers OEM fit and finish.
    6 replies | 640 view(s)
  • Sticky's Avatar
    07-31-2015, 05:45 PM
    It has been a while since BMW introduced the M6 GT3 set to replace the Z4 GT3. BMW Motorsport director stated the 24 Hour Dubai and Daytona races in 2016 are what they are targeting, "That’s obviously what I think customers would like to run and that’s what we’re clearly aiming at." Those are big endurance races and certainly a good time to make a debut. They are also still a ways off which means testing can continue and the car should be ready to go next year. What BMW is doing is tweaking and testing the car for privateer teams, "That’s the focus of our development program is that we hand over a car to the customers that’s already developed, that not necessarily has raced in the hands of a works effort from our side. It’s competition. But as we’ve said before and I would like to stress again, this is really customer racing. Therefore, for us, it’s not an option to enter a prototype on a works level and compete against our customers or potential customers. This is customer racing and nothing but." Do not expect a factory backed effort with the M6 as you saw with the Z4 and M3 previously. As a reminder the M6 GT3 features a 500 horsepower 4.4 liter twin turbo V8 based on the S63TU engine design with a dry sump oiling system. The power is routed through a six speed sequential manual gearbox. With a dry weight of 2866 pounds it should move quite quickly.
    10 replies | 310 view(s)
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