Hi all

I've been comparing other brands of straight six cylinder engines to the ford and the closest one to the ford in respect to bore and stroke ratios and rod to stroke ratio is the M3 E46.

The M3 revs to 8000rpm and makes just over 100hp per litre at fly wheel.

I know I am being simplistic in comparing motors, everyone seems to say on forums that the ford is a long stroke tractor motor built for low rev torque.

Why did Adolf come up with the same dimensions for his straight six high revving power house, applauded around the world has one of the best sixes built.

M3 bore 87mm stroke 91mm rod length 139mm

Ford bore 92mm stroke 99mm rod length 154mm

Download a game called Automation and have a play around in the engine builder section. You'll answer your own questions in that and see how to make it rev, and how much a bit of stroke makes a difference,

https://www.automationgame.com/

Thanks mate

There had to be something in that extra $100,000

Far out i love how you referred to the BMW as the nazi mobil

Adolf HAH

Kinda comparing Apples to Oranges a bit, aren't we? The poor old SOHC Ford may be a lot more low-tech, and a bit of a tractor engine, but you don't see a lot of BMW's towing horse floats or ski-boats, huh? And I know which one I would rather try and fix / maintain / get parts for when it's 10 years old...

I agree with you, I was more speaking about the dimensions eg. Stroke to rod ratios under square bore to stroke, as I've read many people say shorten the stroke to make it rev. Our piston speed is to high,

But Adolf got it going, when he could have used any dimension as the M3 is dedicated performance. Not one size fits all like the ford

I love my falcon xr6 el manual I can work on it.

Only thing I disagree with is parts you can get heaps more parts for world cars than Australian cars especially with the Internet. That's why we modify and think outside the box to me that's the enjoyment

Yeah, that's the thing, old Heinrich could have used any bore and stroke combination, but he picked the one for the best power, smoothest operation, etc, for a sports-saloon / grand-touring type car application where as old Henry needed an engine that suited soccer mums, tradies, horse and boat owners, and old guys in hats towing caravans, etc, so they needed something to make good torque at lower revs, rather than big HP and 8000rpm.

And yes, I agree there are way more parts available for the Bob Marley, (go on, figure that one out ) but how many parts can you get, at a decent price, for a 20-30 year old car, that's not from M-sport or similar.

I like the sound of a good BMW I6, and they are (usually) nice driving cars, but for all round use, including towing, in our climate, I'd rather have a Falcon 6 than almost any other engine. Horsepower sounds nice on paper, but torque wins races. I can't believe they are never going to make another one.

I won't say what brand it is, but his son brought it in after being in storage for 30 odd years to be restored on Counting Cars, IIRC.

Yeah they finally start making cars that the door handles don't fall off, pick it up with excellent brakes take it to the tune up shop and your got a weapon that doesn't break, wife can drive it.

Take it up to the BMW, or MERC for 1/2 price.

Then they stop, WTF

what do ya buy, front wheel drive, have to get used to doing burnouts in reverse,