BMW M5. M5. 2 Engine 3. Tuning Guide. In the March issue we tackled some common and not so common power adders for the S5. S5. 2 3. 2 motors found in 9. BMW E3. 6 M3s and some first generation Z3 M Roadsters. We followed that in April with engine upgrades for the 2. VR6 1. 2v, enjoyed in many VWs from 9. This month, were heading back to Bimmerland, specifically to the successful M5. M5. 2 motors found in the E3. While both engines are seen in the same coupe, four door and convertible E3. Both share the same cylinder head and block, with an 8. Since BMW sought more mid range power for the 3. E3. 6 M3 3. 2 in 9. The resulting 2. 06 lbft at 3. M5. 0s 1. 81 lbft at 4. However, the M5. 2 manifolds decreased intake runner diameter cost it top end grunt. Thats why both the OBD1 M5. OBD2 M5. 2 found in the 9. As were always keen to point out, you dont have to live with stock power any longer. Weve hunted down some key tuners who take these cars to the next level. Bear in mind, were assuming horsepower gains over a stock 1. Different cars and different dynos will vary, and we dont care to use flywheel guesstimates since theyre usually quoted with different assumed percentage losses and are rarely backed by actual engine dynos. Note the quoted prices do not include labor costs. They are simply parts prices. An easy to install, bang for the buck upgrade is usually an intake system. Sure, you could get a K N or a. Fe drop in filter from BMP Design and retain the factory airbox, but the conical filters in a cold air intake CAI system will give more power. Companies like Active Autowerke Active, Advanced Flow Engineering a. Fe, BMP Design, Eurosport and Turner Motorsport TMS offer intakes for both cars. Youve also got companies like Dinan, East Coast Induction Systems ECIS and VF Engineering who offer CARB certified systems for street legal use in California. Expect to pay between 1. JPG' alt='E36 M3 Oil Cooler Install Kit' title='E36 M3 Oil Cooler Install Kit' />Youll also enjoy a new roar under the hood at wide open throttle past 5. The next quick power gain is a set of lightweight underdrive pulleys that replace the alternator, power steering and water pump pulleys. These liberate some lost horsepower from the parasitic drag of the factory units. Not only that, but the hard plastic factory pulleys are known to crack over time and fail I had this happen on a 9. M3 water pump pulley. Eurosport, evosport, Rogue Engineering and TMS sell 6. CNC aluminum pulleys for around 2. Depending on which companys intake you chose, youve got up to 5. This means you can get software, which Active, Dinan, ECIS, Eurosport and TMS sell between 2. The software not only bumps ignition and revises fuel maps for optimum power, but it removes the factory speed limiter so that 1. When putting the intake system, pulleys and software together, expect to have a noticeably faster car thats probably close to 1. An alternative for your 1. Eurosport 3. 25i cam kit. This upgrade uses factory BMW cams from a 9. M3 and includes Conforti tuned software, as well as its Evo. The kit has shown sizeable gains, with peak horsepower reaching 1. Once you have an intake, pulleys and software, the next upgrade is a cat back exhaust. Companies like Active, B B, Dinan, evosport, Rogue, Supersprint, TMS and UUC Motorwerks all have one, and prices range from 5. The least expensive is sold by UUC, the most expensive by Dinan. Installation is usually a simple 1 2 hour task. Youll get a handful of horsepower, the car will benefit from a more aggressive sound and there could be a 1. For 1. 43. 8 you can treat your stock 3. Active. Its CAI, third generation cat back exhaust and software have been tuned in house on its Mustang Dyno. For the 3. 25i, the same upgrades should get you similar power but cost 1. These prices could drop since Active is hoping to lower the price of its software, so call them first. Dinans normally aspirated upgrades for these two engines will net a claimed 2. The upgrades include Dinans software, CAI, exhaust and larger throttle body for 2. Eurosports cam kit for the OBD2 3. M5. 0 manifold conversion kit, Evo. Conforti software and cams from the 9. M3 3. 2 for 2. 14. The company recommends you source the manifold but can supply a new one for an extra 4. The larger manifold sacrifices mid range torque a loss of 1. While the stock car peaks at 1. The end result is a peak gain of 4. Eurosport also tested the kit with a factory M3 exhaust you can find used ones and got 2. E3. 6 M3 territory3. Active has supercharger systems for both the 3. Breathing through a factory exhaust, you can expect 2. Actives Gen. 3 cat back exhaust for an extra 6. The supercharger is a Rotrex C3. If youre wondering about reliability, AA reports its sold over 6. VF Engineering sells a centrifugal supercharger for both engines. Using a Vortech V2 SQ SC polished supercharger regulated to 6psi, the kit also features OEM BMW idler pulleys, CNC brackets, OEM high flow injectors, Bosch bypass valve and GIAC software. The kit retails for 4. The 3. 28i gets the lesser horsepower but more torque 2. Over 5. 00. 0Dinan has a centrifugal supercharger for 6. Although the company doesnt quote whp numbers for the kits, theyve quoted 2. While the price is the same for manual 3. Active is considered the pioneers of E3. Even though it has discontinued its turbo kit for the 3. The AA stage 1. 5 kit uses its stage 2 intercooler and features a Mitsubishi TD0. H turbo with a 1. Theres no reduction in compression, so the head doesnt have to be removed. At 9psi, the 7. 99. In this case were talking a minimum 2. Add a boost controller, larger injectors and some race fuel, and this kit should be good for 3. For the 3. 28i only, Eurosport offers its twin screw supercharger. The stage 2 system uses the 1. Opcon Autorotor and Laminova intercooler core that are integrated into the CAD designed manifold. Boost is regulated to 9psi, and air is cooled by a water to air intercooler with front mounted heat exchanger. For 8. 49. 5, stage 2 delivers 3. With a set of M3 cams and an M3 cat back exhaust, the company saw 3. For those interested in saving money, Eurosport also offers a non intercooled stage 1 twin screw setup with undisclosed power ratings. Special Concoctions. If you already have E3. M3 cams but need software, companies like Eurosport, TMS and Active have programs tuned for this setup. Since a header back exhaust system, CAI and the M3 cams can get you around 2. View Photo Gallery 1. Photos. Its no secret a 3. M3 motor will fit the 3. But dont forget to add the wiring harness along with an M3 tranny and clutch. Turner Motorsport is able to swap your 3. M3 motor in one to three days for approximately 1. You can supply your own motor or they will find one for about 4. M3 gearbox for around 9. If your engine is torn apart, you could swap in a 3. M3 shares the same cylinder head, but youd still need the right software to run the engine. If this sounds interesting, you can source used and newly built engines from Bavarian Engine Exchange. Then youd be starting from a 2. S5. 0S5. 2 tuning guide et 30. For those tearing their motor apart without interest in forced induction, Active suggests using your stock 3. S5. 0 crank and rods from a 9. M3. Your displacement will be bumped to 2. The neat thing about this setup is Active already has software running with factory M3 cams that nets 2. AA track pipe no cats and muffler. Remember What I Have Downloaded Flash. Thats more power than a stock E3.