R8 V8 and S4 V8 ...?

[sasha18yug]

I have not searched and don't know if this has allready been discussed ...i wanna know what the similarities of the both engines are ...and if the s4 engine could use some of the parts from the r8 engine to make more power , if someone could give some information i'll appreciate ...if there is ant thread about this just post me a link and make me smile ...thanks guys..

[whartung]

Beating drew to the

[BUD-S4]

^^^ YES.

[sasha18yug]

could use some information and not some smarta**** ...:)

[PNW Avant]

No.

[B6JoeS4]

IBTL

Everyone on EA check out the new thread in the s4 forum and vote

[whartung]

could use some information and not some smarta**** ...:)

yeah you sure could use some information

[enigma1406]

They're the same. Just take an R8 ECU and put it in your S4! The only reason more people don't do it is because it's too expensive.

[sasha18yug]

yeah you sure could use some information

Thanks for being so friendly...

[J0HN_R1]

They're the same. Just take an R8 ECU and put it in your S4! The only reason more people don't do it is because it's too expensive.

Wrong... The R8 has an exhaust fluid injector, and the crank & flywheel are made of aluminum...

Other than that, the same...

[enigma1406]

Wrong... The R8 has an exhaust fluid injector, and the crank & flywheel are made of aluminum...

Other than that, the same...

I meant just the actual engine itself. You don't have to get all technical on me.

[x X CLoud X x]

this ThreaD sucks as much as the OP, close this garbage

[Zac]

They're the same. Just take an R8 ECU and put it in your S4! The only reason more people don't do it is because it's too expensive.

Wrong... The R8 has an exhaust fluid injector, and the crank & flywheel are made of aluminum...

Other than that, the same...

umm...ok lol

[beemercer]

I have not searched

could use some information and not some smarta**** ...:)

well what did you expect? Extensively covered previously.

[beemercer]

Wrong... The R8 has an exhaust fluid injector, and the crank & flywheel are made of aluminum...

Other than that, the same...

bullshit, the crank in the R8 is made of C83600 alloy

[beemercer]

I meant just the actual engine itself. You don't have to get all technical on me.

well, this is a goddamn technical thread afterall.. your nontechnical posts aren't helping anyone!

[P0234]

I didn't read what you wrote, but I was wondering if you had gone down niagra falls in a barrel yet?

[gear_head81]

Beating drew to the

Drew hasn't posted yet, he must have seen the thread and shot himself. oh for the OP the block is the same.

[beemercer]

Well, same block material.. different production methods for the RS4/R8

The cylinder crankcase of the high-revving engine was
machined to higher specifications due to the higher
stresses in this component. To minimize warping of the
cylinder manifolds, the crankcase is honed under stress.
For this purpose, a honing template is attached to the
crankcase before the honing process in order to simulate
the warping of the bolted-on cylinder manifold.

Bottom end is vastly different between the two.

[halik]

I think taking an R8 motor and swapping it into an RS4 would be a much better idea.

[halik]

bullshit, the crank in the R8 is made of C83600 alloy

lulz at the notion of aluminum crankshaft...

[beemercer]

lulz at the notion of aluminum crankshaft...

lol, look up what C83600 is

[gear_head81]

lulz at the notion of aluminum crankshaft...

C83600 is Leaded Brass

[beemercer]

...

[AndyGs4]

OP, Audi makes several 4.2Ls and they are all rather different. There are a few companies now making good parts for the S4 (JHM for example). No need to think about an engine swap, and there are no parts to my knowledge that could be swapped from one motor to the next. One is FSI the other is port, one is internally balanced, the other is external....the list of differences is endless.

Do a little bit of searching, some research and you will find a lot of this on the forums. You will find as well that a good catback, tune, headers, IM.........will put you up towards the RS4 and R8 power levels.

[halik]

lol, look up what C83600 is

Copper lead alloy...

http://www.anchorbronze.com/c83600.htm

[dmaxben]

Well, same block material.. different production methods for the RS4/R8



Bottom end is vastly different between the two.

so basically the R8 just got a torque plate hone instead of a 'normal' quick-production machining process/hone. Interesting..

I might be newbing myself, but what is a "cylinder manifold"? Maybe did the guy who originally posted that simply mean "the deck"...?

Other than that is the bore spacing, etc all the same between every 5v 4.2??? IE, if for some random reason you wanted to run an R8 short block or crank or something, would all those parts interchange with the BHF in the S4?

Ben

[AndyGs4]

^^ Read my post....internally balanced vs external...........this means completely different crank.

Oh, and the heads on the S4 are 5v, Rs4 and R8 (iirc) are 4v. S4 is port injection....Rs4/R8 are FSI.......S4 has VVT on intake only......RS4/R8 have VVT on intake and exhaust..

The BHF shares little to nothing with the internals of the Rs4/R8 motors.

[beemercer]

I might be newbing myself, but what is a "cylinder manifold"? Maybe did the guy who originally posted that simply mean "the deck"...?

It's just the block in general, Audi uses strange verbage

Other than that is the bore spacing, etc all the same between every 5v 4.2??? IE, if for some random reason you wanted to run an R8 short block or crank or something, would all those parts interchange with the BHF in the S4?

Ben

The physical dimensions of all the chain motors is pretty similar. Also, all Audi gas motors have switched over to the Alusil 84.5mm bore/90mm borespacing/5.5mm wall format that the BHF MPI 4.2L uses. The V10's and V8's are the same, not sure about the I4 or I5.

[dmaxben]

^^ Read my post....internally balanced vs external...........this means completely different crank.

Oh, and the heads on the S4 are 5v, Rs4 and R8 (iirc) are 4v. S4 is port injection....Rs4/R8 are FSI.......S4 has VVT on intake only......RS4/R8 have VVT on intake and exhaust..

The BHF shares little to nothing with the internals of the Rs4/R8 motors.

ahh ok thanks for the info. I completely missed your earlier post (#25) with the balancing info etc..

[whartung]

Other than that is the bore spacing, etc all the same between every 5v 4.2???

If we take this question out of context and pretend you aren't talking about an R8 or RS4 V8, the other 5v 4.2's such at the RS6 TT block is still significantly different than the S4 4.2 block. They still wouldnt be interchangeable.

[adub]

Its the same engine, only suckers by an r8.

:)

[Club Cheetah]

Holy shit how did I miss this yesterday? I gotta figure a way to subscribe to the threads this guy starts. Classic laughs right there.

[slo s4]

I think the OP is just trolling, hoping to start an EPIC thread. Sorry; you went too dumb.
On a positive note, I actually learned a few things. So...thanks?

[sasha18yug]

no problem guys ..i was to lazy to search and found out what i needed to know...thats why there are forums and threads so we can talk about stupid stuff like this ...lmao ...imo the way to answer this is to put a link to the wikipedia and thats it...:))

[whartung]

no problem guys ..i was to lazy to search and found out what i needed to know...thats why there are forums and threads so we can talk about stupid stuff like this ...lmao ...imo the way to answer this is to put a link to the wikipedia and thats it...:))

No i think it is more important to drill home the fact to every consecutive new person that just cause the engine says 4.2 does not mean it is anything at all alike any other 4.2 aside from displacement. Now that you've learned that lesson, continue on unmolested our young padawan learner.

[Jayme D]

I Love Lamp.