BMW Connecting Rod Modifications

John Edwards discusses how he machines BMW connecting rods to reduce weight for increased RPM for naturally aspirated and forced induction engines.
www.engine-machining.com

Category:

Autos & Vehicles

Tags:

• bmw
• race
• connecting
• con
• rod
• rods
• john
• edwards
• costa
• mesa
• r&d
• automotive
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• road
• racing
• drifting
• ralley
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• scca

[upmykoolaid]

@dstyleshansta - what do you mean? Like pull out the plug so engine doesn't roar n bake the cables? Like in the oven n shit? Is that what u mean? Let me know man..

[fiatnutz]

@upmykoolaid - What is your question? I'm not sure that I understand what you mean by the 'bake cable' and the 'oven'????????

[fiatnutz]

They are factory balance weights

[UberWagen]

Is that a modified brake lathe or something you were using to cut?

[fiatnutz]

I used an engine lathe.

[pyro8818ak47]

I work on engines myself most sbc or bbc or some mopar and ford but that is really neat. Fiatnutz do you think this is a dying art of rebuilding engine? Alot of people are saying that engine rebuilding will die off but to have a engine rebuilt you can have them run better than when they came out the factory

[fiatnutz]

I don't know if I would call it dying, but those of us who have been at it fro more than 40 years are dying off. The industry is somewhat mature and only those people who make an investment in good equipment and can do the odd-ball stuff are going to stay busy. If you just rebuild SBC & BBC engines, your career is over and you don't know it yet. If you haven't transitioned over to import engines, than you are way behind the curve.

[aurelrica]

@koukoudaman ok but after saving wheigt from pistons, rods you have to mach that wheigt with the conter wheights of the crankshaft wright? it's not enough to pair the oposite piston/rods (for eg in a 4 cyl engine) the conterwheight of the crank must be equal whith the wheigt of the piston plus bolt plus a partial wheigt of the rod otherwhise will not bee neded (the conterwheight)

[schlusselmensch]

I know chaps who, if you layed those rods on the ways like that, would pick them up and hit you with them.

[brendanraymond]

what are those lumps of steel hanging off both ends of the rod? its not the first one I have seen... would you have any ideas why they would do that?

[bddc201]

Way too heavy on the cut. That insert was SMOKED! I almost never go more than half of 1mm on a facing cut, but never on interrupted cuts.

[TheTalonTsi]

isnt griding down that metal going to reduce the rods integrity? idk i could be wrong

[causticblood]

What rpm are you running at? How about ipr? Thanks for the vid.

[iceCOLDkillaxDLoL]

These are MOTINS Serbian connecting rods. Am i right???

[TheBakiralnaif]

its excellent film on BMW Engine parts