The compression ratio of an engine is a very important element in engine performance. The N55 was BMW's first straight-six engine to use a twin-scroll turbocharger.It also won three straight Ward's 10 Best Engines awards in 20112013.. Car is fairly light at ~3200 lbs but has a tall over drive. N54. Exhaust duration / Lift: 261 / 9.7mm. Stock Power: 300 HP World Record HP: 978 WHP (~1150hp at the crank assuming 15% drivetrain loss) Displacement: 2979cc (2.979L) Turbocharger: Twin turbo Compression: 10.2 to 1 Bore x Stroke: 84.0mm (3.31) x 89.6mm (3.53) Internals: Forged crank and rods. It's a 5-speed manual. Jerry, This has been talked about 2000 times for sure. The time now is 09:07 PM. User Name: Remember Me? Bore Size Rod Length Stroke Distance Wt / Gms Wt / Gms Top Rings Top Rings BMW N54: Production: 2006-2016: Cylinder block alloy: Aluminium: Configuration: Straight-6: Valvetrain: DOHC 4 valves per cylinder: Piston stroke, mm (inch) 89.6 (3.53) Cylinder bore, mm (inch) 84 (3.3) Compression ratio: 10.2: Displacement: 2979 cc (181.8 cu in) Power output: 225 kW (306 HP) at 5,800 rpm 240 kW (326 HP) at 5,800 rpm 250 kW (340 HP) at Stock boost makes roughly 6-8 psi, averaging closer to 6. Just not an n54 yet. 1 - 5 of 5 Posts. WHP Level supported (with proper fuel, upgrades, and tuning) Stock-750WHP. The N54 is a 3.0-liter straight six unit with two small-pressure turbochargers and a compression ratio of 10.2:1. Product Information. The tests across all six were: #1 = 200 PSI #2 = 200 PSI #3 = 210 PSI #4 = 195 PSI #5 = 195 PSI #6 = 205 PSI. 9.4:1 and 16 psi boost ( as Alpina does ) BTW, Alpina is keeping the stock turbos, AFAIK. N54. There are plenty of strong running big blocks in the 8 to 1 and 9 to 1 compression range, that's the beauty of a big block. Bore: 84.0 mm. EORI number GB279251966000. 22mm. New M Sport & M Sport PRO styling packages, including (for the first time ever) optional 23" alloys. Following the introduction of the BMW B58 Displacement: 3.0 L (183 cu in.) For the first time ever, 2618-alloy pistons can be installed with piston-to-wall clearances near that of an OEM piston! Deck Layout: Open. Compression Ratio: 10.2:1. If I was building a 91 or 94 pump gas motor I'd go 9:1 for 91 or 9.5:1 for 93. Exhaust duration / Lift: 261 / 9.7mm. Password: Register: Search: Today's Posts: Mark Forums Read : JB4tech.com - International Turbo Tuning One company has forged pistons in stock but the compression ratio is 9.2:1 (OE is 10.2:1). The N54 is a fairly tough engine. BMW - 3.0 24V Turbo (N54B30) JE's patented Perfect Skirt coating makes piston slap, false knock, and cold-start wear a thing of the past. iTrader: ( 0) N54 compression ratio options. Compression ratio: 10.2 : 1: Bore X stroke: 84.0 X 89.6 mm: Engine number: N54B30: Engine ECU: Siemens/Continental MSD81 / Siemens/Continental MSD80: Read methods. The numbers above tell me that my engine makes good compression in each of the cylinders. The BMW N55 is a turbocharged straight-six petrol engine that began production in 2009. Leaks happen far more often than failure. Original specifications are 10.2:1 and 84mm. 8-100. Pin diameter. New orders & technical [email protected]hackengineering.co.uk. Theres an aluminum crankcase with iron cylinder lines and steel. Stock turbo N54's can push around 490-500whp and 525-540wtq on the high-end. Please consider creating a new thread. Not everyone will see results this impressive. Intake duration / Lift: 245 / 9.7mm. Exhaust duration / Lift: 261 / 9.7mm. Although, Mr. 4speed has a buddy with a 8 to 1 454 that has the 238/248 summit cam in it and it runs real strong as well. Dollar Value of Points: $32.99. Compression height: 31.7mm Pin diameter: 22mm Piston crown volume: -17.2cc Weight: 314g Compression ratio: 10.2:1 Mahle uses their high-performance 2618 alloy for their N54 pistons. +1 I agree, stick with stock compression ratio for the fuel you will be running. The car has 210,000kms and the compression has a high of 165psi in cylinders and a low if 150psi in 2 cylinders. VAT number GB279251966. Intake duration / Lift: 245 / 9.7mm. ENQUIRIES. Compression Ratio: 10.2:1. There's nothing special for the N54. N54 - 306hp at Dyno-ChiptuningFiles.com for the best possible result. Transmission Relations. 1st Gear Ratio: 9.2 2nd Gear Ratio: 16.3 3rd Gear Ratio: 24.5. User Name: Remember Me? The combustion chamber is very similar to the '72 E88 head ( including size/cc), and the 8.3:1 compression ratio is accomplished with dished pistons. Stock tire sizes are 225 / 45 on 17 inch rims at the front, and 255 / 40 on 17 inch rims at the rear. Edelbrock aluminum heads. BMW N54: Basic Info and Specs 1 Production Run: 2006 to 2016 2 Cylinder Head Material: Aluminum 3 Cylinder Block Material: Aluminum 4 Configuration: Inline-6 5 Bore: 84mm 6 Stroke: 89.6mm 7 Valvetrain: DOHC 24 Valves Dual VANOS 8 Displacement: 3.0L 9 Compression Ratio: 10.2:1 10 Weight: 430lbs More items Accepts Turbo and Nitrous; FSR skirt. The new X7 is set to launch by August 2022 in the following variants: BMW X7 xDrive 40d (B57) - 3.0 I6 Twin-Power Diesel, 259kW/352hp & 720Nm/531ft-lb. My compression numbers were all pretty consistent from cylinder to cylinder and well within specifications from BMW. Earn Reward Points: 3299. This is an older thread, you may not receive a response, and could be reviving an old thread. Do note that torque can damage a car just as easy as horsepower, especially. Intake duration / Lift: 245 / 9.7mm. Stroke: 89.6 mm. Compression ratio: 10.2 : 1: Bore X stroke: 84.0 X 89.6 mm: Engine number: N54B30A: Engine ECU: Siemens/Continental MSD81: Additional options. The compression ratio is the ratio between two elements: the gas volume in the cylinder with the piston at its highest point (top dead center of the stroke, TDC), and the gas volume with the piston at its lowest point (bottom dead center of the stroke, BDC). BMW X7 xDrive 40i (B58) - 3.0 I6 Twin-Power Petrol, 280kW/380hp & 540Nm/398ft-lb. Hydraulic roller cam, 224/230 115 LSA, +4 dgr. Jul 20, 2015. The new X7 is set to launch by August 2022 in the following variants: BMW X7 xDrive 40d (B57) - 3.0 I6 Twin-Power Diesel, 259kW/352hp & 720Nm/531ft-lb. I've built a few motors lately too. Note: Compression ratios are calculated at .005 deck clearance, a 4.060 head gasket ID with a .040 compressed thickness Small Block Chevrolet 4 Barrel Class 4 Bore Flat Top 23 Head Compression Piston Piston & Pin Ductile Iron Gapless Part No. JE forged piston set for the BMW N54 engine. Hi. BMW X7 xDrive 40i (B58) - 3.0 I6 Twin-Power Petrol, 280kW/380hp & 540Nm/398ft-lb. Compression Ratio : 10,2 : Maximum power - Output - Horsepower : 302 HP / 306 PS / 225 kW @ 5800 rpm : Maximum torque : 295 lb-ft / 400 Nm @ 1200-5000 rpm : Drive wheels - Traction - Drivetrain : RWD : Transmission Gearbox - Number of speeds : 6 speed Manual . Location: Switzerland, ZH. N54 compression numbers. All times are GMT -7. Turbo's Size: Mitsubishi TD-03 Housing with 10T wheel. See if you can find out if the serpentine belt was recently replaced. Fits for. Port-EFI, fully programmable with wideband O2. Engine: 454 BBC. Aug 12, 2009. Compression Ratio: 10.2:1. Chamber sizes varied a lot on the 781s so each engine must have the chambers measured. The test is done the same way it is on any other motor. noirot heater bunnings New M Sport & M Sport PRO styling packages, including (for the first time ever) optional 23" alloys. Features. For a straight bolt on this is arguably the best head by virtue if the reasonable combustion chamber and valve size ( remember this head will render an 8.7:1 ratio on a 240). Following the introduction of its BMW N55 successor in 2009, the N54 began to be phased out. The final model powered by the N54 is the E89 Z4 roadster, which was produced until 2016. The N54 has won five straight International Engine of the Year awards and three straight Ward's 10 Best Engines awards. Compression ratio: 10.2 : 1: Bore X stroke: 84.0 X 89.6 mm: Engine number: N54B30: Engine ECU: Siemens/Continental MSD81 / Siemens/Continental MSD80: Read methods. By this point i had given up and decided it was time to sell or find a new engine as my original tester was climbing very slowly, and at least to me the idle sounded very odd. This is a material usually reserved for racing and other "heavy duty" turbo applications. BMW N54 Specs. Its a '90 stock 454bbc by Hardin Marine 4-bolt. The boost pressure is 8.8 psi (0.61 bar) and an air-to-air intercooler is used. Compared with the naturally aspirated BMW N52 that it replaced as BMW's highest performance six-cylinder engine, the N54 produces an additional 34 kW (45 bhp) and 108 Nm (80 lbft). The N54 is a twin turbo inline six, featuring a unique gasoline direct fuel injection system. I didnt realize that Im supposed to test the rings using regular motor oil when doing a compression, I used WD40 instead, Cyl 4 jumped to 110 and 3 went to 110 also, none of the other changed when using WD40. If I was building an N54 for an e85 or 93+ meth car I'd stick with stock CR. I can set any air/fuel ratio I want as well as any timing advance map. Turbocharging is a key difference between the N54 and BMW's previous straight-six engines. The N54 has two small low-pressure turbochargers to minimise turbo lag. BMW's marketed the twin-turbo as "TwinPower Turbo", although the term has since been used for engines which have a single twin-scroll turbocharger. Join Date: Feb 2007. Car: BMW 335i E92. The difference in horsepower between models is achieved by different compression ratio, intake manifold design and computer tuning. 2000 rpm =75 mph. Engine rebuild - lower compression ratio? Block Material: Remove the spark plug, insert the fitting, test. Company number 10922424. as many N54 enthusiasts have gone above and beyond these numbers. N54 - 306hp at Dyno-ChiptuningFiles.com for the best possible result. The N55 replaced the BMW N54 engine and was introduced in the F07 5 Series Gran Turismo.. Customer Reviews. All versions have a bore of 84.0 mm (3.31 in), a stroke of 89.6 mm (3.53 in), a compression ratio of 10.2:1 and the redline is 7000 rpm. This Sunday i had decided to compression test my 535i as i thought it was running a little funny in my head. All BMW 3 serie 335i - N54 - 306hp tuning files deliver the best possible performance and results within the. Cylinder1 read at 150 and cylinder 2 read in the low 130's. Redline RPM: 7000. Password: Register: Search: Today's Posts: Mark Forums Read : N54Tech.com - International Turbo Racing Discussion > Model-Specific Engine Tuning & Modification Discussion > N54: Which compression ratio ? Pick a cam in the 224 to 230 duration at .050 range and have fun burning the tires off. Turbo longevity also becomes a concern . All BMW 3 serie 335i - N54 - 306hp tuning files deliver the best possible performance and results within the. Please select compression ratio and bore when ordering. "Rated" CR is 8.5:1, actual CR is often 8.0:1, sometimes 7.9:1. Which compression ratio ? Firing Order: 1-5-3-6-2-4. We are proud to introduce the latest in our line of N54 turbocharger products the VTT "GC"turbochargers. Do note that torque can damage a car just as easy as horsepower, especially. as many N54 enthusiasts have gone above and beyond these numbers. For stopping power, the E92 3 Series Coupe LCI 335i braking system includes Vented Discs at the front and Vented Discs at the rear. The N54 is a twin turbo inline six, featuring a unique gasoline direct fuel injection system. Join Date: Aug 2015. Cast pistons Block Design: Open-deck Redline: 7000 Injectors: Piezo What is the better option and why: 10.2:1 and 13,5 psi boost ( as we have with the PROcede, AA Xede, ) or. The 2006 BMW 325i (215 hp) and the 2007-2011 BMW 328i (230 hp) have a single-stage 31.60mm. I will have to re-check with an oil squirter.
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