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Dinan 8-Series BMW Performance Packages

Dinan Modified V12 Engine

Dinan Modified V12 Engine

Dinan sought to create the fastest accelerating, best handling coupe in the world in 1991 using the BMW E31 platform.  They felt that there was no need to “give up the joy of driving to have a back seat and a trunk,” putting Dinan tuned 8-series cars on par with higher priced exotics.  They even back up all of their performance packages with a 3 year / 36,000 mile warranty.  In addition, all systems and components are 50 state emissions legal.

Naturally Aspired

These packages were meant to achieve maximum acceleration from the M70, 5.0L V12 engine without the use of forced induction.  They consisted of various components of the Dinan product line that were carefully matched and sold at a discounted price.

Stage I  | Automatic Transmission – $5,689.00

Dinan Engine Management Software

Dinan Engine Management Software

  • (2) Engine Chips
  • (1) Transmission Chip
  • (1) Exhaust System
  • (1) High Stall Torque Converter *
  • (1) External Transmission Cooler
  • (2) Intake Manifolds **
  • (20) Installation Hours

* Exchange Price ($1,300 Core Deposit)

** Exchange Price ($2,200 Core Deposit)

Stage II  | Automatic Transmission – $5,989.00

Dinan Exhaust

Dinan Exhaust

  • (2) Engine Chips
  • (1) Transmission Chip
  • (1) Exhaust System
  • (1) High Stall Torque Converter *
  • (1) External Transmission Cooler
  • (1) Shift Kit
  • (2) Intake Manifolds **
  • (24) Installation Hours

* Exchange Price ($1,300 Core Deposit)  |  ** Exchange Price ($2,200 Core Deposit)

Stage I  | Manual Transmission – $6,780.00

Dinan LSD

Dinan LSD

  • (2) Engine Chips
  • (1) Exhaust System
  • (1) 3.15:1 Limited Slip Differential *
  • (2) Intake Manifolds **
  • (11) Installation Hours

* Stock differential must be shipped to Dinan for modification

 ** Exchange Price ($2,200 Core Deposit)

Note: The horsepower and torque increases associated with the Naturally Aspirated packages should be slightly greater than +86 HP and +75 TQ at 6000 rpm.  

Twin Turbos

Dinan 8 Twin Turbo Engine Bay

Dinan 8 Twin Turbo Engine Bay

These packages were designed to show off Dinan’s true engineering prowess.  Other tuners never attempted to create such a system due to its complexity.  They were able to create huge power output by using a system that they designed and manufactured themselves.  By using a cutting edge electronic engine management system, it allows the twin-turbo V12 to maintain its silky smoothness as if it were stock.

Stage I

The Dinan 8 is a twin turbo, dual inter-cooled system that continues to utilize the 850i’s twin engine management systems allowing it to retain the “limp home” capability where the engine only runs on six cylinders. The engine management system consists of high flow injectors, Dinan’s Turbotronics 5 (digital manifold pressure sensor)and new software to optimize fuel delivery and spark advance.  It allows the stock 9.0 to 1 compression M70 V12 to run up to 10psi of boost.

Dinan Stage I Twin Turbo Horsepower

Dinan Stage I Twin Turbo Horsepower

  • (1) Package: twin turbos, dual inter-coolers and associated piping, valves, sensors and wiring
  • (1) Engine Electronics
  • (1) Transmission Chip
  • (?) Installation Hours
  • Output: 469 horsepower and 549 ft-lbs of torque

Stage II

The Stage II Dinan 8 retains all of the components from the State I system.  It also adds a Dinan designed exhaust system to reduce back pressure, extrude honed intake manifolds and various drivetrain component including high stall torque converter and shift kit for cars equipped with automatic transmissions.  Dinan states that the driver can “hot brake” the car to make boost while standing still which dramatically reduces 0-60 mph times.

Dinan Stage II Twin Turbo Horsepower

Dinan Stage II Twin Turbo Horsepower

Dinan Stage II Twin Turbo Torque

Dinan Stage II Twin Turbo Torque

Automatic Transmission – $20,995.00

  • (1) Package: twin turbos, dual inter-coolers and associated piping, valves, sensors and wiring
  • (1) Engine Electronics
  • (1) Transmission Chip
  • (1) Shift Kit
  • (1) Transmission Cooler
  • (1) High Stall Torque Converter
  • (1) 3.64:1 Limited Slip Differential *
  • (2) Intake Manifolds **
  • (1) HP Exhaust System
  • (83) Installation Hours

* Exchange Price ($1,300 Core Deposit)

** Exchange Price ($2,200 Core Deposit)

Manual Transmission – $19,495

  • (1) Package: twin turbos, dual inter-coolers and associated piping, valves, sensors and wiring
  • (1) Engine Electronics
  • (1) 3.15:1 Limited Slip Differential *
  • (2) Intake Manifolds **
  • (1) HP Exhaust System
  • (75) Installation Hours

* Stock differential must be shipped to Dinan for modification

 ** Exchange Price ($2,200 Core Deposit)

The Stage II twin turbo package produces 511 horse power and 584 ft-lb of torque which is enough to push the coupe to 60mph in 4.6 seconds, a standing quarter mile in 12.8 seconds and a top speed in excess of 190 mph.

Standard Dinan Engineering Warranty

Dinan Twin Turbo Package Standard Warranty

Dinan Twin Turbo Package Standard Warranty

 

Optional Dinan Engineering Powertrain Warranty – $4,000.00

Dinan Twin Turbo Package Optional Warranty

Dinan Twin Turbo Package Optional Warranty

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Dinan 8 Owners Group

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