Actual Engine Differences

[Snapper]

So the rods are the weak link in the f6 interesting as there are a few in the low 400s with out rods

[bluprinturbo]

the main factor in almost all of our bottom ends letting go is the rods, so yes they are the weak link. there are some ba's in the 400's without rods. give me one person who would recommend that. as for the pistons, here goes. from what im led to believe, acl was the manufacturer of pistons for ford and many other car companies for that matter. im pretty sure there policy was to use a forged piston for any engine producing 100 or more hp per litre which the f6 does. mahle have taken over the piston division of acl, so there it is, mahle forged pistons. acl or mahle are not just aftermarket. they do heaps of oem as well.

the part number for rods is the same between fg xr6t/f6. I know that as I rang ford myself. they couldnt however tell me anything about the pistons. im happy to be proven wrong on it.

on another note, it suprises me that rdp would remove the engine from their fg to do valve springs, head studs and oil pump gears but not replace the rods while it was out. doesnt make sense. I guess they want to find the limit of them and can obviously afford to do so.

[45T-XR]

I cant be certain, but I think that was lees intention, to find out how tough these new engines are, Im assuming they couldnt get the headstuds in due to the back of the engine sitting under the wiper cowl, although its been ages since I had the rocker cover off and cant remember exactly how far the studs would be being between 5 and 6 there might be enough room though. As I think they just used the smaller head studs that keep the stock holes in the block. Could be wrong though

[Mr_4.0]

Ba-bf-fg all had different cams also I believe...

[retro-xr6t]

Bf has 8 degrees more lift on the exhaust side than the ba, inlet is the same.

[djqc]

whats the max power been made on an fg xr6t unmolested block/head etc

[XYZ]

whats the max power been made on an fg xr6t unmolested block/head etc

I believe Rob from Monster Torque FG ute has run over 500rwkw on the totally standard motor (unopened) with upgraded turbo on E85...

[djqc]

I believe Rob from Monster Torque FG ute has run over 500rwkw on the totally standard motor (unopened) with upgraded turbo on E85...

Looks like the car is in good hands then