Ignition System

We carry plenty of stock of the most important ignition system parts for your Ford Escort Cosworth

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NGK BCR8ES (5430) - Spark Plug

NGK

NGK BCR8ES NGK: the world's leading pioneers of OEM quality spark plug technology for decades.NGK is the brand leader in the UK spark plug market and are the world's biggest supplier to many major car manufacturers. Each and every one of their products are designed to meet the most rigorous standards and are the professionals' choice because of their quality and technical excellence. Their plugs can be found in use by teams in F1, WRC and MotoGP. Put simply, NGK genuine spark plugs are the workhorse at the heart of smooth-running engines around the world.The NGK Standard Spark Plug is constructed from durable material that is corrosion and abrasion resistant. The spark plug insulators are made of 99 percent pure alumina silicate, allowing for longer insulator noses for reduced fouling. This spark plug features a triple gasket sealing process that eliminates fuel leakage. It also includes a solid copper core that provides superior heat dissipation and conductivity. This spark plug has resistor that is produced with a glass and carbon mixture, which is fired to ensure superior performance and durability. It has corrugated ribs that prevent flashover and cold rolled threads to inhibit damage to the cylinder head.

£4.50£3.75 (ex. VAT)
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YB Rotor Arm

Motorsport Developments

Sierra and Escort Cosworth Rotor Arm. (All Models)This Rotor Arm will fit all models of Sierra and Escort Cosworth. 

£9.00£7.50 (ex. VAT)

YB Rotor Arm

Sierra and Escort Cosworth Rotor Arm. (All Models)This Rotor Arm will fit all models of Sierra and Escort Cosworth. 
£9.00
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Champion QC59C Racing Spark Plug Each

Champion

Champion Racing Spark Plug Each Cosworth QC59CChampion Racing spark plug are for Cosworth engines with high bhp for trackday and competition use.The colder (harder) Champion Racing spark plug is designed to work at higher temps or in a more hostile environment.The lower the champion spark plug part number, the colder the plug.These are priced per spark plug and requires 4 per Cosworth engine.For Sierra Cosworth YB red and green top engine, YBP Escort Cosworth small turbo silver top engine, Escort Cosworth YBT T35 big turbo blue top engine.Fits: Escort RS Cosworth, Sierra RS Cosworth  3 door, Sapphire RS Cosworth 2WD, Sapphire RS Cosworth 4WD, Sierra RS500 Cosworth.

£11.40£9.50 (ex. VAT)
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Denso Iridium IK27 Spark Plug (1 plug)

Denso

Suitable for all Cosworth YB 250 > 500 BHP and CVH (all power levels)Improved Horse Power Get more power with an optimal combustion cycle.IRIDIUM POWER has a low required voltage and a high ignitability, resulting in less misfiring and no spark, the outcome being a dramatic improvement in combustion. Engine output is thus increased. The findings of a bench test using a motorcycle engine to show the improved combustion from IRIDIUM POWER is shown on the below. Compared to normal plugs, a 0.5ps (1.4%) improvement is seen in output at 110km/h.Improved Acceleration Increased response and acceleration performance.IRIDIUM POWER best demonstrates its performance improvement during acceleration.IRIDIUM POWER has a 0.4 mm diameter iridium center electrode and a specially shaped ground electrode. These features combine to achieve higher ignitability and require lower spark voltage than ever before. This enables high-response driving with fewer misfires than under higher required voltage spark conditions, and fewer misfires when ignitability is difficult. As a result, acceleration improves in comparison with normal plugs.Improved Fuel Economy Even during idling ignition is assured, with less fuel consumption and less noise.The good ignitability from the fine electrode (0.4mm) of IRIDIUM POWER draws out much more performance from the engine. Comparing a normal plug (W20FS-U) with an IRIDIUM POWER(IWF22) on a 2 cycle 50cc engine, fuel consumption improved from 41.74km/L -> 43.69km/L, an improvement of about 5%.Note: Mileage measured using a chassis dynamo; actual driving results under normal conditions may vary.

£11.50£9.58 (ex. VAT)
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YB Distributor Cap (All Catalyst Models)

Motorsport Developments

This is the cap for all green top Sierra Cosworths and the Large turbo Escort RS CosworthsThese are the same high quality item's we fit to all late RS Cosworths in our workshops and have done for over 15 years. Don't be fooled by substandard products by people whom don't work on these cars.

£12.25£10.21 (ex. VAT)
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YB Distributor Blanking Cap

Motorsport Developments

 1x Distributor Blanking Cap.This cap is used to blank off the distributor when you have converted an old style ignition system over to wasted spark or coil on plug and have to retain your distributor.This Distributor blanking cap is machined from one solid piece of alloy and fits all Ford Escort RS Turbo and Rs Cosworth distributors.This has been properly developed and designed so as to fit nice and tightly using the standard cap retaining clips and it incorporates the correct groove around the circumference so that it does not rattle around like most of the competing products I have seen.You do NOT want a piece of loose alloy rattling around anywhere near a Cosworth YB cam belt I assure you.Take care out there...

£19.99£16.66 (ex. VAT)
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YB Distributor Cap (All NON Catalyst Models)

Motorsport Developments

This is the cap for all non green top Sierra CosworthsThese are the same high quality item's we fit to the red top Sierra Cosworths in our workshops and have done for over 15 years. Don't be fooled by substandard products on eBay by people whom don't work on these cars.

£22.00£18.33 (ex. VAT)
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Coilpack Mounting Bracket

Motorsport Developments

Ideally suited to our Wasted Spark Conversion, providing a solution to the tricky task of mounting the coil pack to the body.Made from alloy in a brushed finish.Complete with fixings.

£38.40£32.00 (ex. VAT)

Coilpack Mounting Bracket

Ideally suited to our Wasted Spark Conversion, providing a solution to the tricky task of mounting the coil pack to the body.Made from alloy in a brus...
£38.40
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GPA Uprated Ignition Coil for Cosworth and Escort RS Turbo S1 & S2

Motorsport Developments

Fits:Sierra RS Cosworth 3 doorSierra RS500 CosworthSapphire RS Cosworth 2WD 4 doorSapphire RS Cosworth 4WDEscort RS CosworthEscort RS Turbo Series 1 & 2This is an easy upgrade for your Cosworth ignition system.It is substantially more powerful than the standard Cosworth ignition coil and is a easy to fit direct replacement for most Cosworths.This does NOT fit the T28 small Turbo Escort Cosworths with Ford EEC 1V  engine management.

£40.00£33.33 (ex. VAT)
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Denso Iridium IK31 Spark Plugs

Denso

Suitable for All Cosworth YB 500 > 650 BHPImproved Horse Power Get more power with an optimal combustion cycle.IRIDIUM POWER has a low required voltage and a high ignitability, resulting in less misfiring and no spark, the outcome being a dramatic improvement in combustion. Engine output is thus increased. The findings of a bench test using a motorcycle engine to show the improved combustion from IRIDIUM POWER is shown on the below. Compared to normal plugs, a 0.5ps (1.4%) improvement is seen in output at 110km/h.Improved Acceleration Increased response and acceleration performance.IRIDIUM POWER best demonstrates its performance improvement during acceleration.IRIDIUM POWER has a 0.4 mm diameter iridium center electrode and a specially shaped ground electrode. These features combine to achieve higher ignitability and require lower spark voltage than ever before. This enables high-response driving with fewer misfires than under higher required voltage spark conditions, and fewer misfires when ignitability is difficult. As a result, acceleration improves in comparison with normal plugs.Improved Fuel Economy Even during idling ignition is assured, with less fuel consumption and less noise.The good ignitability from the fine electrode (0.4mm) of IRIDIUM POWER draws out much more performance from the engine. Comparing a normal plug (W20FS-U) with an IRIDIUM POWER(IWF22) on a 2 cycle 50cc engine, fuel consumption improved from 41.74km/L -> 43.69km/L, an improvement of about 5%.Note: Mileage measured using a chassis dynamo; actual driving results under normal conditions may vary.

£44.00£36.67 (ex. VAT)
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Wasted Spark Coilpack

Motorsport Developments

Ideal for the Cosworth conversion to wasted spark using the right driver and additional parts.This is the coil pack used by us when running distributorless ignition systems with the Ford Cosworth and CVH range of engines.

£58.99£49.16 (ex. VAT)

Wasted Spark Coilpack

Ideal for the Cosworth conversion to wasted spark using the right driver and additional parts.This is the coil pack used by us when running distributo...
£58.99
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YB Ignition Twin Amplifier Mounting Bracket.

Motorsport Developments

Ignition Amplifier Twin Bracket for Cosworth YB or any application using similar amplifiers.This is a brand new alloy Ignition Amplifier bracket to enable the correct mounting of 2 ignition amplifiers to any car requiring this due, normally, to a conversion from normal distributor the more modern solid state wasted spark system.Please note that you are bidding on only ONE bracket, which is available in black or polished alloy as pictured, so please state in your paypal payment what colour you wish to receive.

£65.00£54.17 (ex. VAT)
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HT Leads Set for 2WD & Early 4WD Models

Motorsport Developments

Fits:All Sierra Cosworth Red Top Engines.These leads fit the non catalyst model of Sierra Cosworth and as such will fit all 2WD Sierra Cosworths and the early red top 4x4 Sierra Cosworth. The correct system is easily identified as the distributor cap is angled and points the lead entry points backwards towards the rear of the engine bay.Please remember, we only supply and fit parts here that are tried and tested by us and are proved to work properly. There are many cheaper HT lead sets on the market and unfortunately we remove and throw lots of them away in our workshop on an almost weekly basis and have been doing so since we started tuning these Cosworths years ago as they do not have the interference suppression qualities that are required to ensure the poor quality Cosworth wiring looms do not induce interference from them.The fact some of these cheaper leads have well known household names makes no difference, many of them are designed for modern cars with great interference suppression built into the looms and components. Take care, buy right, buy once...

£79.50£66.25 (ex. VAT)
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HT Leads Set for All Catalyst Models

Motorsport Developments

A full set of 5 HT leads -  4 x spark plugs and 1 coil leadFits:Late model Green Top Sierra 4x4 CosworthsLarge Turbo Escort CosworthsThese HT leads fit all large turbo Escort Cosworth as well as the late green top 4x4 Sierra Cosworths. The correct system is easily identified as the distributor cap is pointing upwards with the HT leads connecting into the top of it.Please remember, we only supply and fit parts here that are tried and tested by us and are proved to work properly. There are many cheaper HT lead sets on the market and unfortunately we remove and throw lots of them away in our workshop on an almost weekly basis and have been doing so since we started tuning these Cosworths years ago as they do not have the interference suppression qualities that are required to ensure the poor quality Cosworth wiring looms do not induce interference from them.The fact some of these cheaper leads have well known household names makes no difference, many of them are designed for modern cars with great interference suppression built into the looms and components. Take care, buy right, buy once...

£82.00£68.33 (ex. VAT)
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HT Plug Leads For Wasted Spark Ignition

Motorsport Developments

Fits:All Ford Sierra & Escort RS Cosworths that have been converted to run wasted spark ignition systemsA full set of 4 HT leads.These HT leads are available in Blue and BlackThese HT leads are significantly longer than most wasted spark HT lead sets out there as we specified a lead length to suit the Cosworth - we are the only people who make wasted spark ignition kits for Cosworths and thus know exactly where the components need to be fitted for it all to work properly.Beware cheaper but shorter leads...Please remember, we only supply and fit parts here that are tried and tested by us and are proved to work properly. There are many cheaper HT lead sets on the market and unfortunately we remove and throw lots of them away in our workshop on an almost weekly basis and have been doing so since we started tuning these Cosworths years ago as they do not have the interference suppression qualities that are required to ensure the poor quality Cosworth wiring looms do not induce interference from them.The fact some of these cheaper leads have well known household names makes no difference, many of them are designed for modern cars with great interference suppression built into the looms and components. Take care, buy right, buy once...

£82.00£68.33 (ex. VAT)
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Cosworth Wasted Spark Driver

Motorsport Developments

 Please allow a few days for the drivers as these are now made to order.1x brand new wasted spark driver to enable distributorless ignition on all Ford Cosworth Level 1, Level 6, Level 8 and P8 ECU's. It comes with full colour fitting instructions.This system gets rid of the antiquated distributor cap and rotor arm system allowing you to replace it with a far more modern twin coil wasted spark ignition system. As well as being solid state with no moving parts to wear out, the best benefit is you will no longer suffer from having to run tiny plug gaps and be subjected to the constant and annoying misfires that the Ford Sierra and Escort Cosworths are so famous for.Key Points:The new driver runs various different dwell periods depending on engine RPM. It also has a circuit built in that drives the rev counter correctly (some Ford counters require a small mod to the rear. Aftermarket counters work just fine as they are).The ECU requires no software alterations whatsoever for this conversion.The conversion is available for all Weber Marelli ECU versions such as L1, L1A, L6, L600, L8 and P8 including ECU's converted to Pectel Super 8.The distributor cap, rotor arm, coil HT lead and standard coil are removed from the car totally leaving you with a solid state, non moving HT ignition system with less HT connections and only 1 gap for the voltage to jump - the all important spark plug gap!Please be advised that other products are required to convert your car to wasted spark configuration, and we can supply all these parts if required.Please Note:Installation of this product requires soldering inside your ECU.

£140.00£116.67 (ex. VAT)
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Cosworth Wasted Spark Driver Conversion (Full Kit)

Motorsport Developments

Fits (ECU's):L1L6L600L8P8This is a brand new wasted spark driver kit with all associated components to enable distributorless ignition on all Ford Cosworths running Level 1, level 6, Level 600, Level 8 and P8 ECUs. It comes with full colour fitting instructions.This system gets rid of the antiquated distributor cap and rotor arm system allowing you to replace it with a far more modern twin coil wasted spark ignition system. As well as being solid state with no moving parts to wear out, the best benefit is you will no longer suffer from having to run tiny plug gaps and be subjected to the constant and annoying misfires that the Ford Sierra and Escort Cosworths are so famous for. Improving the gap usually improves combustion giving you running improvements, better fuel consumption and potentially more power too. There are no downsides.This system will work fine with both Standard and Pectel equipped ECUs and it doesn't matter what sort of chip is fitted.The built in tacho driver will drive 90% of the standard tachometers although this cannot be guaranteed as they are so old now. Some 3DR units may not work - see notes at bottom.Parts included in the kit:Wasted spark ECU driver with DIY instructionsWasted spark conversion loomHigh quality ignition amplifierSpecial bracket to mount 2 ignition amplifiers to your carWasted spark type coilpack (may differ from picture)New set of HT leads to suit the YB and this type of coilFull colour instructions on how to fitKey Points:The new driver runs various different dwell periods depending on engine RPM. It also has a circuit built in that drives the rev counter correctly. (Some Ford counters require a small mod to the rear. Aftermarket counters work just fine as they are).The ECU requires no software alterations whatsoever for this conversion.The conversion is available for all Weber Marelli ECU versions such as L1. L1A, L6, L600, L8 and P8 including ECUs converted to Pectel Super 8.The distributor cap, rotor arm, coil HT lead and standard coil are removed from the car totally leaving you with a solid state non moving HT ignition system with less HT connections and only 1 gap for the voltage to jump, the all important spark plug gap. The price is for the listed components and instructions ONLY. We are not fitting it for you at this price, although fitment is available by us if required.Please Note:Installation of this product requires soldering inside your ECUThe ECU images in this listing are there only to illustrate an installed unitAn ECU is not part of the saleThe ignition coil may differ slightly to the one in the picture3DR Sierra Cosworth Tachos may occasionally need replacing with aftermarket or Sapphire unit

£440.00£366.67 (ex. VAT)