Ford Crossflow Upgrades In A Vixen?
Discussion
Over the next month the Vixen engine will be taken out for a full refresh ready for the start of the new season in late March.
Current engine spec is :
Stage 3 head
1760cc
Forged pistons
A2 cam
Twin 40's
Light weight steel flywheel (4.6kg)
The rest is pretty much standard (rods, crank, valve gear etc) but properly balanced. For info, the car is used both on the road and in competitive hillclimb events.
The engine has always felt really nice for both road & track but having never driven any different spec engines, I have nothing to compare with. I don't need more power (134bhp, 131ftlb) but a wider torque curve would be good. I don't want to raise the rev range above 6,500, but strong low down torque thru to 6,000 would be perfect. I also want to 'bullet proof' it, where reasonably possible.
The items I'm thinking about include:
Steel rocker posts & shaft ?
Roller rockers ?
A more modern cam profile ? Kent 234 seems a popular choice for good power & torque across the range
Steel Maxpeeding rods ? - lighter (& stronger) so should make a more free rev'ing, responsive engine
I would be interested to hear of experience/suggestions.
Moto
Current engine spec is :
Stage 3 head
1760cc
Forged pistons
A2 cam
Twin 40's
Light weight steel flywheel (4.6kg)
The rest is pretty much standard (rods, crank, valve gear etc) but properly balanced. For info, the car is used both on the road and in competitive hillclimb events.
The engine has always felt really nice for both road & track but having never driven any different spec engines, I have nothing to compare with. I don't need more power (134bhp, 131ftlb) but a wider torque curve would be good. I don't want to raise the rev range above 6,500, but strong low down torque thru to 6,000 would be perfect. I also want to 'bullet proof' it, where reasonably possible.
The items I'm thinking about include:
Steel rocker posts & shaft ?
Roller rockers ?
A more modern cam profile ? Kent 234 seems a popular choice for good power & torque across the range
Steel Maxpeeding rods ? - lighter (& stronger) so should make a more free rev'ing, responsive engine
I would be interested to hear of experience/suggestions.
Moto
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