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Turner BMW E46 330i ZHP Project Car

** Updated 03/25/2015 **

After two Speed Touring Car Championships, years of successful racing in Grand Am Cup, and tuning countless E46's for the street, Turner Motorsport decided to build a Championship Motorsport Edition E46 330i ZHP. The goal was to build a great dual purpose car that all of our customers could appreciate. Starting with the rare ZHP Performance Package we focused our efforts under the skin - upgrades to the engine, and driveline, exhaust, suspension and wheels, and brakes.


Power

We love the response and power delivery of the ZHP I6. But to really come alive, we decided to shorten our gears slightly with a 3.64 limited slip. This put us in the meat of the powerband more quickly and more often, at the expense of running a few hundred RPMs higher on the highway, and probably a few MPG's less as well. But this car isn't about fuel economy, is it? With the gearing changed, every other modification we did felt much more noticeable. A full SuperSprint exhaust and aFe intake gave us the sound we really wanted to hear and loosened up at least 35 hp when all combined. That's a great gain on an NA car! Still, we knew we would want more power considering these were just the basic power bolt-ons so far. Next, we experimented with cams and settled on Shrick 264 degree intake/248 degree exhaust cams. This equals a 10.5mm lift on the intake and 10mm on the exhaust valves. This gave us a mid-high RPM boost and doesn't require any software changes. Hard to believe we had done no internal engine modifications up until this point. We also strapped in a longer drive belt and larger accessory pulleys, which frees up almost 5% more power and improves throttle response.

Suspension

For us, a big part of spirited driving whether on the street or on the track is predictability. That's why we went with the LSD, and the same logic defined our suspension choices. We supplemented H&R coils with front and rear sway bars and adjustable rear camber arms so we could go for a more aggressive alignment at the track, when we want it, and more conservative setup for the street.

Brakes

Upgrading the brakes over the ZHP's stock rotors and calipers is a no brainer. StopTech supplied the big brake package to make our car immune from fade and what's more, they work seamlessly with the ABS and DSC systems on our car.

Overall

We determined early on that this would not be an all-out track car with racing seats and a rollcage. It had to be practical for everyday use with the added benefit of weekend track capabilities. We enhanced but retained the subtle looks, kept the refined ride and control for everyday driving, and give the car a performance edge for the street. What we ended up with was a comfortable, high performance street car that doubles as a weekend track car, and it puts down lap times faster than some M3s!

Gallery:




E46 330i ZHP Performance Parts:


Suspension


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H&R Coil Over Suspension for E46 3-Series
High quality German engineered coil over systems at an affordable price. The H&R Coil Over kit takes the traditional shock/spring package one step further. H&R combines their progressive-rate springs with specially valved shocks and adds height adjusters that let you set the ride height to your own personal tastes. These coil overs are designed for street use with progressive rate springs that start out soft and stiffen as they are compressed. This helps to keep the ride compliant while still giving better handling and balance. H&R designs each suspension to work as a coil over. This means that the correct amount of travel has been built into each shock. And the shocks are valved specifically for the spring rates to give a tight and controlled ride without being harsh or ultra-stiff. Each H&R coil over is TUV tested and approved and meets ISO quality standards. These are used with the stock strut and shock mounts for a quick and easy install.

Part #: 29480-2
 

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Turner Motorsport E46 Performance Sway Bar Set 
Featuring a 2-way adjustable, 27mm front bar and a 3-way adjustable, 21mm rear bar. Made from a proprietary alloy that is both stronger and more resilient than competitive swaybars.

Part #:TMSSWAYE46 2


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Turner Motorsport Adjustable Rear Camber Arms 
Top seller! The Turner Adjustable Rear Camber Arms for E36 are great for any street or track car. They are perfect if you have a lowered car and have run out of adjustment with the stock camber arms or if you have a track car and are looking for increased camber adjustment, light weight pieces, stronger components, and improved suspension handling

Part #:TSU9940X


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Turner Motorsport E46 Rear Subframe Reinforcement 
The E46 rear driveline and suspension are very similar to that of the E36. An unfortunate side effect of this is that the E46 also shares some of the same problems as the E36. One of these problems is the rear mounting points for the subframe, which can rip out from their spots in the sheet metal. We have the solution.

Part #:TSU3680001


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Brakes


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StopTech Big Brake Kit for E46 330 
2 piece 332x32mm floating directional rotors (drilled or slotted), 7075 T6 Billet aluminum hats with anti-rattle hardware, 4 piston ST40 calipers, Stoptech Street Performance Brake Pads, DOT compliant stainless steel brake lines, your choice of painted color calipers.

Part #: 83.148.4600


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Drivetrain


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Custom Limited Slip Differential with Performance Gearing for E46 330i
BMW stopped putting limited slip differentials in all cars in 1995 (except for “M” cars.) So, if it’s not an M3 or M5 your car does not have power going to BOTH wheels at the same time. In other words, it is “one wheel drive.” This is not good for any type of performance car and if you have taken your car to the track or have auto crossed it you can see why.

 

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High Performance Finned Differential Cover for E46 330i
E46 High Performance Finned Differential Cover. Finned for better cooling, this is the perfect addition to your E46 differential, espeically if you are running an LSD unit or if the car sees any track use. This is a direct bolt on. Includes gasket.

Part #: 33-11-7-512-980
 

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E46 330 Schrick Camshaft Set
Schrick 264 degree (10.5mm lift) intake and 248 degree (10mm lift) exhaust cams provide a power boost at mid-high RPM range without software changes.

Part #: E46-M54-SCHRICK
 

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Turner Motorsport Power Pulley Kit for E46 330i
As used on our racecars and street cars, these are engineered not only to be the best pulley kits on the market but also to provide the best compromise between performance and reliability.

Part #: PPK-E46
 

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Intake


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aFe Intake Kit - E46 325i/Ci M56, 330i/Ci all - Stage 1 Pro5R 
Unlike similar styled "cone filter" kits the Eurosport intake features a custom molded heat shield. This shield provides protection from the engine's power-robbing hot air and is a perfect fit to your engine bay.

Part #: 54-10451

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Intake


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E46 325/330 Conforti Shark Injector Performance Software 
What really sets the Shark Injector software apart is how easy and effective it is without any further modifications. This software tool re-flashes the stock BMW computer through your car’s diagnostic port and was developed by renowned BMW tuner Jim Conforti, who has over 20 years of BMW engine tuning experience. The Shark Injector is one of the safest and most cost-effective enhancements you can do – offering features and results that other upgrades simply cannot touch.

This software is a major refinement of the stock software. It makes the car much easier to drive with less hesitation, more torque, and incredibly smooth operation. A lot of tuning has been done at the low RPM ranges to improve response. Multiple engine management maps were modified to make more useable power without compromising reliability or driveability.

Part #: INJ3-OBDUSB E46 M54

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Exhaust


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E46 325/330i/ci/ZHP Supersprint Headers 
These Supersprint stainless headers are a true tubular, equal length design that bolt up for an immediate power gain. With no cats and a race exhaust you can expect to gain 20-25hp over the stock exhaust setup. Power gains with a cat section depend on the type of cat.

Part#: 787401


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Supersprint Section 1 Straight Pipes  
upersprint designed this resonator section to replace the stock resonator when used with their headers, section 1 cats, and rear muffler. This resonator is a free-flow design that is also tuned to produce a low exhaust rumble sound and give the 325 and 330 more presence. Supersprint exhaust is widely recognized as the leader in complete exhaust system upgrades - extremely high quality, well designed for optimal flow, and amazing sound. Even at a premium price Supersprint is an unbeatable exhaust system because every aspect is done to such a high level. A Supersprint exhaust rewards you with a terrific sound, long lasting construction and excellent fitment.

Part#: 787412


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Supersprint Rear Stainless Muffler (Round Tips)  
The Supersprint Sport Muffler mounts to original center resonator or the Supersprint resonator. 100% stainless steel; dual 100x75mm oval tips.

Part#: 787406


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