Megasquirt V8 - For 4.0 & 4.6 GEMS 'Serpentine V8 Engine.

GEMS Serpentine Trigger Wheel Kit.

Trigger Wheel Kit for the 4.0 and 4.6 GEMS 'Serpentine' V8 Engines.

Note there are 2 x different weird 'Quirks' & Oddball possiblities on a very few Serpentine Pulleys.

All the 4.0 & 4.6s have large Crank pulleys - and this trigger wheel is idenified as the correct fitment if your pulley has 2 x M8 threaded bolt holes on the crank pulley,
SOME rare 4.2s don't. If the pulley on your Engine has 6 x bolts around it - it's the same as the 3.9 Serpentine set up, these however are quite rare.

Like our other Trigger Wheels - it's CNC cut 5mm thick, specifically designed for the 4.0 / Possible 4.2 Pulley on these V8s, giving superb reliability via its Strength & Quality
of signal even when in bonnet deep mud !.

The 'Slots', as with our other Trigger Wheels, allows fine adjustment to aid setting timing correctly and compensation just in case you don't, around +/- 9 degrees,
sometimes needed due to the Crank Pulley Design on these not actually having a TDC indicator !.

Kit contains CNC Trigger Wheel, CNC Steel 'Spacer' (in case you machine off too a tad too much off the Pulley), CNC 'Locking Ring', and 2 x special 'Flange Head
Self-Locking 8.8T Bolts' to mount to the Pulley. You may need to run a Tap down to clear dirt and rust from the 2 x M8 threads !.

The special 4.0 VR Sensor Bracket is including with all fittings, these have 3 way adjustment to help with fine tuning of both the 'Air Gap' and Timing position, along with some shims to get the VR sensor central to the trigger wheel - the picture shows this kit in the fully fitted Position with the Trigger Wheel Mounted.

Note : A small amount of machining is required to the rear face of the Pulley to allow the Trigger wheel to fit correctly.
If needed we offer a machining service of £25 Plus return P&P.

Easiest route is to ring and discuss, post up your Pulley (we suggest RM special Delivery) and we can machine and return along with your order - saving on shipping.

See Installation Video )

GEMS Serpentine Engine VR Sensor Bracket and Sensor Kit

WORK IN PROGRESS _ RING IF THIS IS WHAT YOU ARE AFTER !!

Our GEMS 'Serpentine' VR Sensor Bracket is specifically designed to be used with the Trigger Wheel Kit listed above & uses the existing Timing Cover Mountings, But,
and again this is important - this only fits GEMs 'Serpentine' engines - i.e. Engines that are 'Serpentine' AND have NO Distributor.

It has been designed for use with a Ford Type VR Sensor (also included in this kit), in a Passivated finish, with all fittings supplied.
The bracket has been designed to also allow 'Fine Adjustment' for getting the 'Air Gap' and position between the VR Sensor & the Trigger Wheel 'Spot On'.

The last part of this kit is a brand new Quality Brand New Ford 'VR Sensor'. We avoid pattern parts in 'white boxes' nobody wants to own up to making,
and, please go new, as a VR sensor is one of the key components in the EFI system, don't cut costs and use one from a scrap yard with 100,000+ miles use !

GEMS Serpentine Trigger Wheel, VR Sensor Bracket, and New VR Sensor Kit.

Our Trigger Wheel Kit for the 4.0 and 4.2 EFI 'Serpentine' Trigger Wheel, VR Sensor Bracket, and VR Sensor Kit.

Note there are 2 x different possiblities for the 4.2 Serpentine Pulleys.
All the 4.0 have these (2 x M8 threaded bolt holes on the crank pulley) but SOME of the 4.2s don't - if the pulley on your 4.2 has 6 x bolts around it - it's the same as the 3.9 Serpentine set up, these are quite rare if your 4.2 has the 2 x M8 holes !)

Like our other Trigger Wheels - it's CNC cut 5mm thick, specifically designed for the 4.0 / Possible 4.2 Pulley on these V8s, giving superb reliability via its Strength & Quality of signal even when in bonnet deep mud !. The 'Slots', as with our other Trigger Wheels, allows fine adjustment to aid setting timing correctly and compensation just in case you don't, around +/- 9 degrees, sometimes needed due to the Crank Pulley Design on these not actually having a TDC indicator !.

Kit contains CNC Trigger Wheel, CNC Steel 'Spacer' (in case you machine off too a tad too much off the Pulley), CNC 'Locking Ring', and 2 x special 'Flange Head Self-Locking 8.8T Bolts' to mount to the Pulley.

The special 4.0 VR Sensor Bracket is including with all fittings, these have 3 way adjustment to help with fine tuning of both the 'Air Gap' and Timing position, along with some shims to get the VR sensor central to the trigger wheel - the picture shows this kit in the fully fitted Position with the Trigger Wheel Mounted.

Note : A small amount of machining is required to the rear face of the Pulley to fit this Trigger Wheel, if needed we offer a machining service of £20 Plus return P&P See Installation Video ) (Supplied in all 4.0 Serpentine Kits)

GEMS Coil Pack Bracket EDIS Installs

On both the 4.0 & the 4.6 GEMS original ignition system they can have 2 x 'Types' of Coil Pack Brackets

The 1st is around 14" long & has FOUR Coil Packs, each having 2 Terminals - These units are NOT recomended for Megasquirt Installs
These units proved troublesome - Even by Land Rovers Standards - and where replaced and upgraded to the '2nd Type'.

The '2nd Type' is a more 'square' unit, which has TWO Coil Packs, each Coil having 4 x on each.

For an EDIS Install, you can use 'Type 2', and the EDIS / Ford G1 Coil Packs will fit, if you however have 'Type 1' - then
you need this bracket to convert over to the later version and then be able to fit your EDIS / G1 Coil Packs.

This 'Conversion' Twin Coil Pack mounting kit has every nut screw bolt washer spacer needed for simple professional quick
quality installation, although the inlet manifold may need a small tweak of 2 to get it to fit eactly, even 'inlets' vary !

CNC Laser Cut & Folded in 3mm Steel, in a Deep passivated finish, with mounting holes for the 8 x EDIS / Gi 'Coil Pack'
bolts are pre-drilled and tapped ready to fit.

GEMS Coil Pack Bracket For VAG Installs

On both the 4.0 & the 4.6 GEMS original ignition system they can have 2 x 'Types' of Coil Pack Brackets

The 1st is around 14" long & has FOUR Coil Packs, each having 2 Terminals - These units are NOT recomended for Megasquirt Installs
These units proved troublesome - Even by Land Rovers Standards - and where replaced and upgraded to the '2nd Type'.

The '2nd Type' is a more 'square' unit, which has TWO Coil Packs, each Coil having 4 x on each.

For an VAG Install, you can use 'Type 2', and a set of our adapter plates, if you however have 'Type 1' - then you need this Kit,
(which also has adapter plates) to convert over to the later version and then be able to fit your VAG Coil Packs.

This 'Conversion' Twin Coil Pack mounting kit has every nut screw bolt washer spacer needed for simple professional quick
quality installation, although the inlet manifold may need a small tweak of 2 to get it to fit eactly, even 'inlets' vary !

CNC Laser Cut & Folded in 3mm Steel, in a Deep passivated finish

Twin Coil Pack Bracket Upgrade Adapter Plates Kit

As you may have read - we specialise with our Kits with the Ford G1 Coil Packs. We like these due to the fact they will run under water. However, we have been asked by numerous customers to make our Coil Pack Bracket Kits to take the Later Coil Units sometimes used in MS2 and MS3 applications which is common on modern VWs Audi Skodas etc P/Ns : 032905106E 032905106B etc as in the pictures opposite.

We have now made our new 'Adapter Plate Kits' for these to now be used on ALL of our existing Coil Pack Kits. Note, these are a ADD ON Kit to the Coil Pack Bracket Kits themselves, oh, and we do NOT supply a Coil !. The Kit comes with 2 x adapter plates, Tower Spacers bolts washer etc etc etc part no's being (NOT Supplied in Kits)

GEMS Serpentine - Complete Bracket Install Kit for EDIS

You can see from the listing above you can buy any of the 'Individual GEMS Kits' to help with your 'EDIS or 'VAG' Megasquirt Install.

Here is the Full 'EDIS Install' Kit.
This includes all of the above to suit the 4.0 or 4.6 GEMS Engines

This kit includes the GEMS Trigger wheel Kit, the VR Sensor Kit & a new VR Sensor unit itself, and the EDIS version of the GEMS
Twin Coil Pack Mounting Kit, which offers a considerable saving over buying seperately.

PLEASE NOTE : this is for 'EDIS 8' Megasquirt GEMS Installs - If you are using the later VAG Coil Packs, please see the listing below !!

GEMS Serpentine - Complete Bracket Install Kit for VAG

You can see from the listing above you can buy any of the 'Individual GEMS Kits' to help with your 'EDIS or 'VAG' Megasquirt Install.

Here is the Full 'VAG Install' Kit.
This includes all of the above to suit the 4.0 or 4.6 GEMS Engines

This kit includes the GEMS Trigger wheel Kit, the VR Sensor Kit & a new VR Sensor unit itself, and the VAG version of the GEMS
Twin Coil Pack Mounting Kit, which offers a considerable saving over buying seperately.

PLEASE NOTE : this is for 'VAG' Megasquirt GEMS Installs - If you are using the earlier EDIS Coil Packs, please see the listing above !!

** This Kit is Supplied in all our MS1X and MS2X Kits **

GEMS PWM Control Kit - Pre Loved Bosch PWM, Mounting Bracket, Plenum Conversion and AFM

This kit is designed to give you 'PWM Control' on your engine.
'PWM control' is in simple terms both a 'Cold Start' / 'Auto choke' facility and also helps stabilise tickover.

These are used within our MS1X Kits, but as here can be bought seperately. MS2X Kits are able to drive the rather complex IAC unit.

The programming for these is already built and programmed into all our ECUs, so connect it up and it will work straight away.
It is actually programmable, so you can fine tune your tickover control and the cold start settings to suit you and your engine.

We have managed to source a number of good used genuine 'Bosch' units (the pattern ones are dire and die in weeks !).

So, whilst these might be used - the Genuine Bosch Units are really well made, we don't buy these in new as they are over £190 + VAT !!.

The PWM Kits are again Engine Specific, this one is designed for the 4.0 and 4.2 Serpentine GEMS Engines.

The Kit comes complete with new hoses, a Pre Loved Bosch PWM Control unit, and, as the 4.0 & 4.2 EFI Plenums do not have the 'Stepper Motor Unit'
we have made a unit that bolts onto the rear of the Plenum like the other 3.9 Serpentine Hotwire versions.

To run PWM Control on the 4.0 GEMS Plenum (giving tickover stability and Automatic Cold Start control) you require 4 x Parts - all are included.
These parts are in the pictures are the CNC laser cut and folded Deep Passivated Mounting Bracket, mounting on the rear cylinder head existing holes
our 'Output Flange' that bolts to the rear of the 4.0 Plenum, a 'AFM replacment tube', this is the 'Le Stubby' with the 'Port' which also takes the
MAT sensor in the top of the AFM, and has the additional 'Input Port' which is for the final part - the 'PWM Controller.

This AFM Kit comes with all fixings, and, as can be seen in the picture can use the standard Plenum to AFM Air Hose if wished.

Whilst not essential to run MS (many racers just don't bother with it), it really is however a 'Nice to have' and makes for a more civilised engine both in starting from cold and helping to give a rock-solid tickover.)

** This is supplied in our MS1X 4.0 Kits or Kit can be order excluding this system if preferred. **

DIY V8 VW/ Audi V8 Ignition Coil leads ENDS ONLY Kit for VW / AUDI Coil Packs

This Kit is for for just the 8 x end terminals (2 parts, Silicone boot, and terminal x 8) as a Kit to finish, or convert your own leads.

We can also supply (see listing below) a more complete Kit, with new Red or Blue lead, and Ignition Terminals and boots as a complete kit.

Choice is yours !!
Full Instructions Included.

THIS KIT IS FOR THE LATER COIL set up using VW / AUDI Coil Packs

** This Kit is Supplied in all our MS1X and MS2X Kits **

DIY Full V8 Ignition Lead Set - This kit is for Later VW/Audi Coil Packs

High Quality and Good Condition Ignition Leads are key to any V8 running smoothly, more so when your engine is either covered with or going under deep water.

This kit allows you to build up a set of Ultra-High quality leads at sensible cost.
Double Insulated Leads, Stainless Steel Terminals for both Coil and Plug ends keep corrosion at bay.
Complete with new Silicone Boots and Hoods.

Full Instructions Included (These are NOT supplied in our Standard Kits and are an Optional Extra.)

THIS KIT IS FOR THE LATER VW / AUDI type coil packs

Megasquirt V8s Range of 'AFM' Tubes which take MAT Sensor

Listed below are our range of 4 x AFM Tubes, all of which take our MAT - 'Manifold Air Temperature' sensors for Megasquirt systems.

One of the design challenges we wanted to achieve was to get rid of the massive restriction in air flow that the standard factory 'Hotwire AFM' achieved so well.

If you look at the picture opposite you will see that there is a huge change now in the ID of our tubes which remove this restriction
meaning more air to the engine, which if you combine with the better stronger Spark, and Megasquirts 'mapable fuelling' means - MORE power !.

These are all available as part of our standard kits - with the ability to choose whichever AFM suits your engine bay best, or purchase here on there own.

Air Flow Meter Tube Stand Alone version

We now do 4 Models of the 'Megasquirt V8 AFM (Air Flow Meter) Replacement Units', all have been plated in a Deep Passivate finish.

The 1st is this complete replacement unit, and is more suited to those who really need the absolute confidence of having a more waterproof solution.

This Model completely replaces the original AFM Assembly which can then be sold. This is basically the same length overall as the unit removed keeping life simple !.

It is designed to replace the AFM where currently fitted, and is secured by 2 Hoses – 1 Hose between Plenum and the Unit,
the other between the unit and Air Filter Housing + Snorkel. The 'MAT' Sensors supplied by us are a direct fitment into this assembly.

These are all available as part of our standard kits - with the ability to choose whichever AFM suits your engine bay best, or purchase here on there own.

Air Flow Meter tube the Le Stubby Version

The 2nd option of our AFM tubes is the 'Le Stubby' Unit

These are as a result of being asked for something very very short where space is at a absolute premium.
So, these are just 70mm long including being flared both ends. The actual 'Mounting Boss' for the Sensor is 20mm,
so, if you add say a hose and have it 25mm inserted into each end, then in effect the unit takes up just 20mm !.

Deep Passivate finished, and really good for those engine bays like mine - that have 'Aaaargh ...bugger all room' problem .

These are all available as part of our standard kits - with the ability to choose whichever AFM suits your engine bay best, or purchase here on there own.

Air Flow Meter tube the Le Stubby Version with Port Inlet Pipe

The 3rd option is the 'Stubby Unit' - But with a 'PWM Port Take Off'

These units are used where there is a need to run a PWM / IAC unit which is being used where Stepper Motors are either not present on system,
or stepper unit can't be run and in a Deep Passivate finish.

Again, having been asked for something very very short where space is a premium, we have these which are the same + PWM Port on side for the PWM system.
Just 70mm long flared both ends and as in the picture with the Port take off TIG welded in place.

These are all available as part of our standard kits - with the ability to choose whichever AFM suits your engine bay best, or purchase here on there own.

Air Flow Meter tube which uses part of a 3.9 AFM Unit

The last option is the Model shown opposite.

This unit uses the end part of an existing 3.9 Hotwire AFM Assmebly which bolts to the end of the new replacement AFM flange with suitable sealer (LR STC50550 is recomended).
This reassembled unit then allows the standard V8 Air Filter Housing to be clipped back into place and maintains everything in the standard position within the engine bay.

However, this factory join from AFM to Air Filter Box is sealed with just 2 x O rings, and for deep water wading this factory seal can fail, hence why in competition
the complete replacement unit is more often one of the other units we do , but for a road based motor this is a popular and neat under bonnet solution.

Finished in Deep Passivate plating all available as part of our standard kits - with the ability to choose whichever AFM suits your engine bay best, or purchase here on there own