• Welcome to the new website!
Monday, 02 July 2012 12:54

Up to 89 911

Written by 
Rate this item
(0 votes)

Your Pre 1989 Porsche 911 modified to your requirements

The Pre 1989 911 covers a wide range of models with various engines, fuel and ignition systems. However at JMG we have extensive experience of all pre 89 911 models and how to best extract power from these models.

Weather you desire a 1970's RS Replica, more power from your 911 Turbo, or even a 3.8 Litre (or larger) engine, we have experience of providing that additional performance.

As we also modify the later 964 and 993 models, we also have extensive experience of transplanting these engines into earlier cars, which sometimes can be a sensible upgrade for improved fuel efficiency, higher performance and improved reliability. A 3.8 993 RS engine in your 911SC? No problem.

Handling, braking, aerodynamic, bodystyling and in car entertainment modifications are also something we have particular expertise in, so however you want to deviate from standard specification, we are here to help.

Pre 1989 911 Modifications


  • Cylinder head modifications for torque, mid range and high rpm performance increases
  • Performance stainless steel exhaust systems
  • Chip tuning (for post 1983 models)
  • CIS Injection modification for CIS Injected cars
  • Kugelfischer Injection modification for early fuel injected cars
  • Carb modification for early carburettor models
  • Conversion to 2.4, 2.7, 2.8, 3.0 & 3.2, 3.6 or 3.8 Engine capacities
  • Conversion to Turbo engine types (any capacity Engine sizes)
  • Mass Airflow sensor conversion (MAF Sensor) for 3.2 Carrera electronic fuel injected engines
  • Performance air filtration
  • Cam shaft upgrades
  • Induction system upgrades
  • Engine rebuilds to any specification (fast road, track, race, stoker & big bore)
  • Nitrous oxide
  • Road and dyno tuning with dataloggingBrakes.
  • Front disk and calliper upgrades
  • Conversion to M030 Brakes
  • Conversion to larger disks and callipers
  • Cross drilled cross drilled


  • Conversion to Porsche sports suspension items (shock absorbers, springs and anti roll bars)
  • Koni & KW suspension upgrades including conversion to coilover suspension
  • Computerised 4 wheel alignment and geometry setup
  • Customised ride height adjustment
  • Customised anti roll bar upgrades


  • Conversion to other transmission types
  • Conversion to limited slip differential


  • Large stock of genuine wheel upgrades with a knowledge of which wheels will and will not fit

Weight reduction

  • Shell stripdown and race prep
  • Carbon fibre panels
  • Lightweight components

Audio & In Car Entertainment.

  • Speaker & head unit upgrades
  • Custom car audio design and build


  • Modification to facilitate wider track and bodywork
  • Modification to allow for better aerodynamics and ground effect
  • Modernisation (alternative door mirrors, handles, spoilers, splitters and side skirts)
Read 17532 times Last modified on Wednesday, 11 July 2012 16:52
More in this category: « 964 & 993 924 »