Electrical race parts for 105 Series Alfa Romeo

We have designed and developed this high quality printed circuit board (PCB) power control unit to integrate all the controls and functions required for a road, track day or race purpose car. It features all the input connections for switchgear and other control units, built in relays to control these circuits and output terminals to wire to the full range of equipment. Additionally, it includes a bank of permanent 12v and switched 12v outputs to allow various auxiliary items to be wired in using the board and spare relays that can be used to switch any additional components over and above its standard design. Fusing is done with modern blade type fuses for ultimate reliability and quality. The board is supplied complete with all fuses & relays, a mounting plinth, a cover panel ready to trim and thumb screws for fixing the lid. Also supplied with the board is a complete wiring list of all the terminals and functions to enable correct installation. As used in all our latest GTA-R builds.

We have also developed and manufactured a professionally made wiring harness which is being installed in all our latest GTA-R builds. The loom features high-quality motorsport multi-plugs to complete the installation of this PCB. The wiring loom has been carefully and cleverly designed to be ambidextrous, making it suitable for use on both LHD and RHD 105 series Alfas. We have included all the variations of wires to handle differences between early and late model cars. This loom is available to purchase separately or you can alternatively build your own loom.

We have bespoke designed and manufactured this high-quality wiring loom for our GTA-R builds. We have designed and routed it very cleverly to enable it to be ambidextrous, meaning it can fit both LHD and RHD 105 series Alfas and includes all the wires to allow for all optional components we use in our builds. It features high-quality motorsport multiplug connectors and is built with lightweight thin-wall race grade cabling. We have kept as much of the wiring colours as possible to standard Alfa colours to make it familiar for people to install. The loom is labelled up for all the major wires and functions and comes complete with a full wiring schematic, pin list for all multiplugs and explanation for what each wire needs to do. This loom is designed to be used in conjunction with our Alfaholics GTA-R PCB board.

Denso style lightweight alternator – the smallest of its type on the market, weighing a mere 2.7KG. We offer this specific unit as the body design makes fitting to Alfa Romeo Nord and Twin Spark engines very simple. We have manufactured a bespoke fitting kit to include a specially machined fitting bolt and adjuster arm, which can be purchased separately.

Genuine Denso race alternator, available in 45amp for Alfa Romeo Nord and Twin Spark engine fitment.

These are the smallest units on the market and manufactured specifically for race application. Able to withstand the harsh environment generated by high-revving engines. Suitable for road and race applications for optimum durability. Used on all GTA-R builds and Alfaholics prepared race cars. Bespoke Alfaholics fitting kit available separately.

Perfect for rally and night racing applications as well as cars with air conditioning that have electric fans running a lot of the time.

We offer this specific unit as the body design makes fitting to Alfa Romeo Nord & Twin Spark engines very simple.

We have manufactured a bespoke fitting kit to include specially machined fitting bolts, aluminium spacer shims and adjuster arm, which can be purchased separately.

Genuine Denso race alternator. Being a genuine Denso unit, this is the very best quality alternator available, making it perfect unit to withstand the harsh environment of high revving race engines. We have manufactured a bespoke fitting kit to include a specially machined fitting bolt and adjuster arm, which can be purchased separately.

Following the huge success of our 50A race alternator we have manufactured this superb Dynator, a dynamo look alternator. The body is CNC machined from billet aluminium to be an exact replica of an original dynamo and is then fitted with our 50A race alternator internals. The unit is 2.2kg lighter than the original dynamo. It represents the ultimate, reliable charging solution for FIA App K. race cars, concours cars and is also particularly useful for SZ, TZ and 750/101 series where space is too restricted to fit a normal alternator.

We have developed this ultimate quality starter specifically for our GTA-R builds, it uses a genuine Denso motor unit and has a CNC machined nose to match it to an Alfa 3 bolt bell housing. Available in both 8 and 9 tooth pinion versions for all 105 series engines. Also suitable for use on a 2 bolt bellhousing by simply not using the central meshing bolt. Weighing in at just 2.9KG.

High torque race starter motor. 9 tooth to fit all 130/131 tooth starter ring gear or 8 tooth to fit all 105/110 tooth starter ring gear, both available.

Please note that on some engine/oil sender configurations, the mating flange on the starter will need un-bolting and rotating to allow clearance and stop the starter fouling on the oil sender

Lightweight, dry-cell battery with outstanding cranking power. Uses Thin Plate Technology to provide high discharge performance required to start high compression race engines. Very fast recharge capability. As used in Max’s GTA Replica and Alfaholics 2.0 Sprint GT racer. Can be mounted upright or flat – suitable for use with Alfaholics aluminium battery tray.

680 amps cranking power and only weighs 6kg!

Alfaholics battery isolator master switch to disconnect the battery circuit for safety, security and to prevent the battery from running flat from any current leakage.

Superb quality laser cut and TIG welded item. To fit lightweight race dry-cell Red Top 25 battery in original under bonnet location. Perfect for complying to race regulations (such as FIA App.K) which require original battery location, whilst simultaneously saving huge weight over original wet-cell battery.

Superb quality laser cut and TIG welded item. Suitable for vertical mounting our Red Top 25 race battery against a flat surface. Can be bolted or welded in place.

Designed to take superb powerful and lightweight Red Top 25 racing battery. Comes with clamping bracket, threaded rod and wing nuts, ready to bolt inside car or boot, clearing valuable engine bay space. 

Alfaholics production, a neat solution for insulating the battery terminals on our race battery conversion. Good both for general safety and also to comply with race scrutineering regulations.

Frustrated from never quite being able to reach switch gear on dashboard when strapped in? This bespoke control box is designed to fit up close to the tunnel on your 105 series Alfa. Top unscrews in seconds allowing easy and fast access to back of switches and fuses. As used in the Alfaholics GTA-R builds. Comes with top plate, dome-headed allen bolts and captives. Also available for LHD.

Laser cut & TIG welded, as used in Max’s GTA Replica. Perfectly contoured to fit the tunnel snugly. Ideal for mounting ignition, fuel pump, fan switch & starter button. Lid removeable to allow easy access to back of switches. Supplied with built in captive nuts and stainless steel button head bolts.

Ideal for ignition, fuel pump, fan and light circuits. As used in Alfaholics competition cars. Available with either spade or screw terminals.

Heavy duty starter button, as used on Max’s GTA Replica and the Alfaholics 2.0 Sprint GT Racer.