GEMS / P38 / 4.6 V8 Serpentine Trigger Wheel Kit.

Trigger Wheel Kit for the 4.6 Serpentine V8. Just as with our other Trigger Wheels its CNC cut 5mm thick, and specifically designed for the 4.6 Engine. The Kit similarly gives superb reliability via its Strength & Quality of signal even when in bonnet deep mud !. 'Slots', just like our other Trigger Wheels allows adjustment to aid setting timing correctly and compensation in case you don't, *around +/- 9 degrees), sometimes needed due to the Crank Pulley Design on these not having a TDC indicator !. Kits contain CNC Trigger Wheel, a CNC Steel 'Spacer' (in case you machine off too a tad too much off the Pulley), a CNC 'Locking Ring', and 2 x Special 'Flange Head Self-Locking 8.8T Bolts' to mount to the Pulley. Kit is designed to be used in conjunction with the special 4.6 VR Sensor Bracket below. 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 (Supplied in all 4.6 Serpentine Kits)

Twin Coil Pack Mounting Kit for 4.6 Serpentine V8 using 4.6 Plenum.

This Unit is for a 4.6 Engine having a bracket to fit a 4.6 Plenum, some people have 4.6 Blocks and Covers but use a 3.5 or 3.9 Hotwire Plenum, these are shown below. Please check which you are using!. (Supplied in all 4.6 Serpentine Kits)

Twin Coil Pack Mounting Kit for 4.6 Serpentine V8 using 3.9 Plenum.

This Unit is for a 4.6 Engine having a bracket if you have a 3.9 top end and plenum fitted - please check before ordering your getting the correct kit. Please check which you are using. (Can be Supplied in all 4.6 Serpentine Kits if required vs other 4.6 option )

VR Sensor Bracket Kit for 4.6 V8 Serpentine

As the Trigger wheel can only be mounted "close" to the correct timing setting, this VR sensor has a significant amount of 3 way adjustment. This helps with both gaining correct trimmed timing, angle of VR to tooth, and Air Gap. (Supplied in all 4.6 Serpentine Kits)

AFM (Air Flow Meter standalone unit)

We currently do 2 Models of the 'Megasquirt V8 AFM (Air Flow Meter) Replacement Units'. The 1st is 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. 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 NOT supplied in our Standard Kits and are an Optional Extra.)

AFM (Air Flow Meter replacement - Uses part of a 3.9 AFM Unit)

The 2nd 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 used

However, as a huge Bonus either unit (as can be seen from the picture) offers a vast increase in air flow through the larger unrestricted Gap, which in turn offers an increase in performance which Megasquirt will take advantage of ! (These are NOT supplied in our Standard Kits and are an Optional Extra.)