What's the difference between S4 and RS4 conrod?

[kamming]

As title, thank you.

[dodgydave]

The RS4 rodbolt is M9 instead of M8.5 hence the big end is smaller on the RS4 and it uses slimmer bearing sheels. Also the wristpin is 21 mm instead of 20mm.

[clubsport]

If changing rods, with engine out and expectations of more power, surely it makes sense to fot carillos for that "over engineered" feeling?

[saf]

fot carillos?

whats the difference between a conrod and a rod ? probably nothing right?

[MCB]

Rod is a good bloke ConRod well I guess you have worked it out and yes you have the answer.

[saf]

Someone told me that conrod is rod when when someones tricked him into handing over the keys to his S4 and and zoomed of fin it.

what is fot carillos. That really stumps me.

[dummi]

i know this is a really old one but its been so long since i looked i forgot - i seem to remember rs4 and s4 were both 21mm pin

despite what the self study says

[lemond]

S4 is a model of an Audi car... RS4 con rod is part of an engine ..... ha ha

Erm... I'll get my coat!

[dummi]

damn it i thought there was a different answer

[okkim]

Here is a photo of the connection rod bolts. The awkward looking bolt is from RS4.

The RS4 con rod big end is 56.95 mm, and S4 is 57.75 mm. The bearing shell thickness is 1.4 mm in RS4, and 1.85 mm in S4. These are not absolutely accurate measurements, but close enough.

The con rods look quite the same. The wrist pin is the same in both.

[jeffw]

http://www.carrilloind.com/

[dummi]

ah thank you for clearing that up okkim i thought small end was same somehow, good info on the numbers too top man

[okkim]

No problem! I forgot to add that the ID of both con rod bearings are the same. So the S4 and RS4 crankshaft measures are the same.