![]() |
M50 2.5, M52TU 2.5 & 2.8, M52 2.8, S50 3.0, S52 3.2 Building these engines for professional and amateur race series since their introduction gives us unique insight into what makes a reliable, powerful engine. Hours on the dyno and on the track has let us build engines for our customers that have put them in the winner's circle time after time. Even our stock rebuilds benefit from our competition experience. Our engines are hand-assembled in-house to factory tolerances or better. Where applicable, components are updated for improved performance and durability. We prefer OE pistons for best service life, and as with all our engines a torque plate is employed during machining for the best bore possible. Our comprehensive packages include many internal and external components not found in cheaper rebuilds, and we always return your engine ready to install, not stripped down. M3 3.0 Liter P/N 110S50001 M3 3.2 Liter P/N 1100S52001 2.5 Non-Vanos P/N 110M50001 2.5, 2.8 Vanos P/N 110M50002
Our engines are priced built on your good core Oiling System and Reliability
The M3, 328, and 325 oil pans are not adequate under racing conditions. The problem caused the demise of both BMW IMSA GTS entries in the '95 Daytona 24 Hour Race, and all IMSA Racing Stock M3 Lightweights were withheld from the Sebring Race until improved parts became available. Under hard braking and especially into sweeping left hand corners, oil in the sump surges forward and up the right canted-over side of the crankcase. Oil starvation then affects the bearings and hydraulic lifters. The remedy is a new oil pump and oil pan kit developed for the European '95 GT International Series. The pan is specially baffled and the oil pump has two pick-ups instead of one. One pick-up is in the main rear lower sump and one is forward to pick up oil surging to the front of the engine. If you install a serious suspension system, wide wheels, "R" type tires, and spend time on the track, weigh the cost of this BMW Motorsport engineered package against the cost of a ruined engine. P/N 11131404GTP
E36 Oil Cooler Kit E36 Six cylinder motors will run at 250° to 270° oil temperatures in racing and driving school conditions. These temperatures are at the upper limit of the best synthetic oils and critical for petroleum based oils. We have seen engines where the customer had been told that he must have missed a shift because of the valve ticking noise, but the problem was that the hydraulic lifters had turned black and blue from heat and the lifters and lifter bores were scored causing sticking. For hard running and on-track reliability, the oil cooler is strongly recommended. For racing it must be considered essential. Unlike other kits ours is sold complete and ready to install with new oil filter housing drilled and tapped to fit original oil pressure sender (if an electric oil pressure gauge is to be added, order our VDO Double Sending Unit P/N 6236024 and adaptor P/N 622400230), oil cooler, pipes and fittings, modified alternator air duct, o-rings, etc. E36 Oil Cooler Kit P/N 1142K000366
Heavy Duty Hard Rubber Engine and Transmission Mount Kit Under hard cornering and heavy braking, E36 engines & transmissions can lean to one side contributing to the "missed shift syndrome" . Installation of these improved bushings (2 engine mounts, 2 transmission mounts) can help you avoid a costly repair bill. A must for racing, strongly recommended for autocross, rally and driver's school use. E36 M3, 328, 325 P/N 11810005
Heavy Duty Alloy Engine Mounting Bracket Look at the right side cast aluminum engine bracket on your M3, 328 or 325. You will notice that due to the tilt of the engine (30°), this bracket carries the bulk of the load. This bracket does break under competition conditions. Our special heavy duty alloy bracket was designed to withstand the stresses of racing. Use with our heavy duty mount kit, above. E36 M3, 328, 325 P/N 11811492M36
Aluminum Thermostat Housing The OE plastic thermostat housings are a common failure point. Over tightening, heat and time lead to eventual cracking and sudden coolant loss. Our aluminum thermostat housing is a direct replacement and eliminates the problem permanently. E36 M3, 328, 325 P/N 1153K722531
Aluminum Radiator This 100% aluminum radiator resolves issues with the failure prone aluminum and plastic original equipment radiators. Eliminates leaking seams and upper hose necks which simply fall off with no warning. A true bolt-in conversion, accepts all factory fittings, shrouds and mounts. E36 M3, 328, 325 P/N 17111E36
Korman Auxiliary Fuel Supply System With a good suspension kit and spec type bigger tires, E36 cars will suffer fuel pick-up problems in corners with just under a half tank of fuel or less. Our kit with a high output Bosch pump feeds the motor from a pressurized auxiliary reservoir assuring a constant fuel flow down to the last gallon. P/N 1331K100KIT
Camshafts and Cylinder Head
E36 Roadsport Camshafts for VANOS 328, 325 These higher lift and duration cams feature improved profiles for better cylinder filling at an excellent price. Kit includes intake and exhaust cams and our cam installation kit (described below). Requires custom chip. With our custom chip original emissions specs are maintained. Revs to 7000 rpm's. P/N 11382528KIT
Chart shows 2.8L engine with Korman Roadsport Cams, Custom Chip and Full Racing exhaust system (stock peak HP 193@5300 rpm, peak torque 206 lb/ft@3950rpm)
E36 Clubsport Camshafts for M3, 328 & 325 VANOS Engines Lift and duration increased to maximum allowable limits of the hydraulic lifters, springs, and piston to valve clearances. No internal engine modifications required. Works best with our fully prepared cylinder heads, titanium valve spring retainers and custom chip. 10.55mm of intake lift, 9.95mm of exhaust lift. Sold in pairs. 328 and 325 models require installation kit, below. Horsepower gains achieved through the full rev range and especially strong at top end. P/N 1138600M3
328/325 Camshaft Installation Kit Includes necessary parts for installation of our Roadsport or Clubsport cams in your VANOS 328 or 325. Includes special valve springs, titanium retainers, valve locks, and hardened lower spring plates. P/N 11396450
Korman Big Valves Larger valves feature a stepped down stem at the valve head for even better flow. Black nitride coating for long service life and less friction. Fits all 2.5/2.8/3.0/3.2 engines. 34mm intake Valve P/N 1134E36R34 31.5mm exhaust valve P/N 1134E36315
2.5/2.8/3.0 Liter Engines and Valve Spring Retainers High revs can drive valve stems down into the original retainers, and sooner or later cause the valves to drop through the retainer into the combustion chamber. This can destroy the piston, cylinder head and sometimes the connecting rods and block. BMW has updated the retainers on 97> cars to address this issue. We offer two choices, the hardened BMW steel retainers or the lighter, stronger titanium retainers.
Titanium Valve Spring Retainers About half the weight and twice the strength of steel. Used in all our stage 3, 4 and full race engines. Weight 12.5 grams each. E36 325 (single valve spring only) P/N 11342325 E36 M3 & 328 P/N 11342328
BMW Hardened Valve Spring Retainers P/N 11341432453
Korman Computer Chips BMW's shipped from the factory are designed to run safely on a wide range of fuels. By optimizing ignition advance and fuel curves for premium fuel (92 octane or higher), significant horsepower and torque increases can be realized. Early E36's have a replaceable "plug in" P.R.O.M. chip which can be shipped to you for installation (please provide your engine control unit number when ordering). Later models incorporating BMW's anti-theft circuitry require you to send us your entire control unit for reprogramming. On all chips, the top speed limiter is raised. Rev limits increased to 7000 RPM for M3 and 325 chips, 7200 RPM for 318.
Custom & Race Computer Chips We have several configurations for M3's, 328's and 325's developed on our dyno for racing and custom applications. Adjustments are made for racing exhaust systems, fully prepped cylinder heads, camshafts, increased displacement, race fuel, etc. allowing you to get the most out of your engine. Call for pricing and details. |
![]() |
![]() |
Big Brake Kits
Korman E36 Competition Big Brake Kit New 13" diameter ventilated front rotors, aluminum hats, larger lightweight aluminum calipers and bigger brake pads give you nearly indestructible braking power. Polished adapter brackets and all necessary hardware are included. With these monsters up front, no change is needed in the rear except for matching pads. No wheel spacers required. Specify exact year and model when ordering. P/N 341123630R
Korman 328/325/318 Competition Big Brake Kit Brings your 328/325/318 up to the same front braking capability as our M3 competition package above. This kit also includes a larger master cylinder and a complete M3 size 12" brake/rotor conversion at the rear. P/N 341123625R
Korman Big Brake Kit 328/325/318 The potential for substantial increases in acceleration and top end speed of the 328, 325, 318iS and Ti models is so great, especially with turbocharging, that serious improvements in braking capacity must be considered. These kits are true bolt on units, no cutting or welding required. Some 16" wheels will give sufficient clearance for this kit, but it is designed to work with wheels 17" in diameter or larger. P/N 341123625
Performance Brake Rotors BMW Motorsport Euro 3.2L M3 "Floating" Rotors These two piece floating rotors are lighter and transfer less heat to the bearing/hub assembly than the U.S. model one piece rotors, making them ideal for high performance applications. The rotor is made with dowel pins cast into the center opening, then the aluminum center hat is cast on the pins. Bolt on replacement for all U.S. spec E36 M3's. P/N 34112227737(L), P/N 34112227738 (R) Gas Slotting or Cross Drilling available at additional cost
Korman High Performance Brake Rotors Available in either a computer controlled cross-drilled version with the holes chamfered to the wear limit, or in a computer controlled gas slotted version with the gas ports milled to the wear limit. Our rotors are then finish plated with cadmium. While nothing beats the appearance of crossdrilled rotors, we suggest using the gas slotted versions for true high performance and track use due to superior wear rates and brake cooling.
E36 328/325/318 P/N3411P160674
High Performance Brake Pads
Ferodo Premier Brake Pads Meet original BMW specs for all models. Full ABS and ESC (electronic stability control) compatibility.
Ferodo DS2500 Compound Brake Pads This is a race developed pad with characteristics that make it perfect for track days. Its consistent coefficient of friction at any temperature, low or high, give very predictable braking and great pedal modulation. This new generation of friction material is very low in compressibility ensuring a firm pedal feel while still providing great life for both disc and pad. Combing with low dusting of wheels and low noise this product is the brake pad for the driver who demands the ultimate in track day braking performance.
Hawk High Performance Disc Brake Pads
Developed for use in our IMSA E30 M3's. Good enough to win both the drivers and the manufacturers IMSA Sport Class Endurance Championships. This pad material is a non-asbestos graphite/metallic formulation. Unlike some racing materials that work well only when hot, the broad coefficient of friction of these pads also enable them to work well under cool, light braking conditions. They are therefore ideal dual purpose pads for both street and club events.
Developed by BMW Motorsport specifically for endurance racing. Tested and proven on our IMSA Endurance Series M3 CSL and 328's. Nothing else comes close.
Brake Cooling
Korman Competition Brake Duct Kit Special duct/hose assembly which allows cool air to be brought in from the front spoiler and routed to the back of the brake rotors . A unique backing plate then forces the incoming pressurized air through the center of the rotor and out through the vent ribs. Provides superior cooling under competiton conditions. Kit includes backing plates, reinforced duct hose and clamps. E36 325, 328 P/N 34517107 E36 M3 P/N 34517108 Brake duct kits for special applications (ie: big brake kits) also available, inquire
Universal Intake Ducts For use with brake duct kits above. ABS plastic duct with 5"x9" Rectangular opening, 1/2" flange and offset 3" hose connection. Fits most front spoiler fog lamp openings, some cutting and fabrication required. P/N 3451106A
Other Brake Components Stainless Steel Brake Caliper Pistons Precision machined, the stainless steel transfers less heat to the brake fluid reducing the risk of fade. Sold in pairs.
Essential for driving schools and highly recommended for all high performance driving. Provides stronger pedal, improved modulation under hard brake usage. Eliminates expansion associated with rubber lines. Kit includes a full set of 6 lines. E36 M3, 328, 325, 318iS and Ti P/N 34321056
A
non-silicone high performance dot 4 brake fluid designed for the extreme
demands of motor racing, yet perfectly suited for street applications. Sold
in 1 liter cans.P/N
SUPER BLUE (blue fluid)
(Type 200 is a yellow version of Super Blue)
P/N TYPE200
|
![]() |
The four valve per cylinder BMW engines can move a lot of CFM, therefore improving air intake flow translates into immediate power gains. Our air intake system includes a ram air tube, modified brake duct and the high flow K&N Filtercharger. The key part is the air ram tube that picks up air from the pressurized left brake duct (without a loss in brake cooling), forcing it up through a new intake air tube and on through the more efficient K&N air filtercharger. The advantage over cone filter intakes is that our Ram-Air system is always getting cool outside air, never losing power from ingesting hot under-hood air. The temperature difference can exceed 100° F in city driving or waiting in line for your autocross run. SAE correction factors for temperature give a horsepower loss of about 5% for a 50° F increase, 9% loss for a 100° F increase. In an M3, that's over 20 H.P! The second advantage is that cone filter intakes rely on manifold vacuum to draw air through the filter. Our Ram-Air system gets positive pressure, the faster your road speed, the greater the ram-air effect. The air flow sensor automatically meters the correct fuel curve to match the increased air flow. There is no re-tuning, no change to emissions specs, just bolt on and go faster! All kits include K&N Filtercharger.
K & N Filtercharger The K & N Filtercharger is unsurpassed in filtration protection, while maintaining an air flow greater that the OEM paper filter. Constructed of a pleated special cotton fabric with aluminum screen mesh and wide rubber seals, it comes pre-oiled with a one million mile warranty. When dirty, simply clean, re-oil and reinstall. These filters are a direct replacement for your factory paper element.
Flowtech Intake-318 Easy bolt-on installation. Just remove the factory air filter box and install the new venturi tube and special cone shaped K & N Filtercharger. Less restrictive than the factory air box with a sporty sound. Support bracket included.
K&N Filter Service Kit 12 ounce K&N air filter cleaner, 6.5 ounces K&N oil and instructions for servicing in one convenient package. P/N 1372995050
Big Bore Throttle Bodies Bore size enlarged 3mm for a 10% increase in butterfly area. Quicker acceleration, more torque and acceleration through mid range and top end. Most effective when combined with upgraded intake, free flow exhaust and upgraded computer chip. Sold on an exchange basis. M3, 325 P/N 116106036 (core P/N 116160CORE)
On the M52 engines BMW uses one intake manifold design for engine capacities from 2.0 to 3.2 liters (U.S. Models 328 and 3.2 M3). These manifolds produce excellent torque but in the larger capacity engines they don't supply sufficient flow at higher rpm. This is especially noticeable on engines modified for increased power. Schrick's goal was to design a manifold which would provide increased performance at higher rpm's without sacrificing low end torque. They accomplished this using 3D-CAD software to optimized flow at all rpm ranges. The new manifold design includes changes in the intake runner diameter, length and shape, the air plenum chamber has been enlarged for greater capacity, and the injectors have been moved closer to the ports. Schrick dyno tests on the 2.8L engine showed a 14HP increase with no other modifications. A larger increase is expected in the 3.2 engines. Further gains are possible with the computer programming, performance cams, free flow exhausts, cylinder head modifications, etc. The Schrick manifold is made with a removable plenum cover which allows access for porting and polishing for further air flow increases. The manifold is a direct bolt-on upgrade for the 2.8 and 3.2 liter engines. Installation Time: Approximately 3 hours. P/N 1161160017
|
![]() |
Performance Cat-Back Exhaust Systems
Top quality design and construction from Austria reduces back pressure up to 80% for more power and improved MPG. Warranty is 24 months with no mileage limit. The DTM (Deutche Touring Championship) style has two round upswept 70mm stainless steel tips. The new style DTM tips are upswept but are more angular in appearance. Once piece construction for precise fit.
Dyno tested for maximum power with up to 30% more flow than factory systems. Stainless
steel inner components, aluminized and black powder coated E36 325,328, M3 Dual DTM tips P/N 1883783666 Shown: twin round tips
Ansa Performance Exhaust-325 Dyno tested, deep sport sound, but measured in decibels, no louder than stock. Free flowing, premium construction with stainless steel baffles and dual 76mm stainless steel tips. One piece construction for factory fit. Three year unlimited mileage warranty. E36 325 P/N 18BW9127
Ceramic Thermal Barrier Coating The ceramic coating provides superior corrosion protection, stain resistance, increased gas velocity and combustion chamber stabilization. Even if scratched or chipped its unique self-sacrificial properties won't allow oxides to form under the coating. Unlike other coatings, both the inside and outside of the exhaust manifold is coated. Expect underhood temperatures to be reduced significantly. E36 M3, 328, 325 P/N 182110016 E36 318 P/N 182110014 |
![]() |
All E36 P/N 25250001
Heavy-Duty Transmission Mounts For competition type driving we strongly recommend our full engine and transmission mount kit, but for more moderate use you may change the transmission mounts only. The purpose of these mounts is to reduce transmission/gearshift pattern movement and minimize the chance of selecting the wrong gear. E36 325, 328, M3 P/N 23233136
Modified engines, turbos, superchargers, and wider tires place an increased load on clutch components. Heavier duty assemblies are highly recommended. We use only new Sachs clutch parts, no rebuilt units. Sachs is the original equipment supplier for BMW, Mercedes, Porsche, Etc. Heavy-Duty Pressure plates feature a 20% increase in clamping force. Heavy-Duty Clutch discs are manufactured with a high performance friction material and stronger springs.
SACHS Replacement Clutch Kits
Comes with Sachs pressure plate, Sachs clutch
disc, Sachs release bearing and disc alignment tool.
Aluminum Flywheels The factory dual mass flywheel weighs 27.6 lbs. The Korman Aluminum Flywheel weighs just 10.4 lbs. This reduction in rotating mass (17.2 lbs.) allows your engine to accelerate faster at all Rpm's. Our flywheel is precision machined on the latest numerical control lathes to ensure highest possible accuracy. Constructed of high strength heat treated aluminum with a replaceable steel friction surface. Kit includes aluminum flywheel, anti-galling plate, and special flywheel bolts. Unbeatable when combined with our Sachs Sport Clutch Kits (above), and is also compatible with the original factory clutch set.
Korman 50% and 75% Limited Slip Differential Conversions If you race, autocross, rally, do BMW driving schools, or otherwise tend to push your car to the limit, let us convert your 25% limited slip differential to 50% or 75% limited slip. Wheel spin is reduced or eliminated, improving track times significantly. Additionally, the reduction in internal slippage lowers lubricant temperatures, helping prolong bearing life. The conversion requires special machining at our facility, making it necessary for you to ship your differential to us for modification. Your salesperson can help you decide which percentage is right for you. 75% Limited Slip Conversion P/N 33126375 50% Limited Slip Conversion P/N 33126350 (price when done with gear change, rebuild or similar)
Who can you trust to rebuild your transmission or differential? In addition to performance upgrades, Korman Autoworks can rebuild your drivetrain components to BMW factory specifications. We have the special tools and expertise to do the job right, and provide a 2 year, 24,000 mile warranty.*
|
![]() |
BMW Motorsport CSL/Group N Rear Spoiler/Wing Kit
Standard Height Rear Wing P/N 51712E36002 High Rear Wing (includes spacers) P/N 51712E36001 BMW Motorsport CSL/Group N Front Splitter/Spoiler Kit
Lightweight Competition Body Parts (all E36) Hoods Designed to be pinned in place, no provisions for hinges or latches. Kevlar (12 lbs.) P/N 41336325C Fiberglass (17 lbs.) P/N 41336325 Fiberglass Front Fenders Left P/N 4135336LF Right P/N 4135336RF M3 Style Fiberglass Front Bumper Cover/Spoiler Fits 318/325/328 and M3. P/N 413536FB Lightweight Aluminum Doors As supplied on the M3 CSL Lightweight. Saves 70 lbs. over stock steel doors. Supplied with special door mount brackets necessary for installation. Fits all E36 except 318Ti and Z3. P/N 41350036L and 41350036R E36 Gauge Console Set Injection molded in black plastic to match interior. Replaces sunglasses tray in center dash with a 3 gauge console set. Kit includes console, oil pressure gauge, oil temperature gauge, voltmeter gauge, sending units and wiring. P/N 62110876
|
© Korman Autoworks, Inc. 2629 Randleman Rd. Greensboro, NC USA 27406 |