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hold onto your pants...

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PostPosted: Thu Mar 25, 2010 10:32 am 
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isnt that round this a direct cam driven distributor?

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PostPosted: Thu Mar 25, 2010 4:58 pm 
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There's lines coming off of it. It's a power steering pump, and on the E2 it also powers the hydraulically-driven alternator.

Audi was serious about trying to move things from the front to the back. I bet they'd have moved the intercooler to the back if it was practical :)

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PostPosted: Thu Mar 25, 2010 10:25 pm 
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Why not go driveshaft driven (weren't the alternators driveshaft driven)? Wouldn't that create a *lot* more drag on the engine?

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PostPosted: Thu Mar 25, 2010 11:04 pm 
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Those are very light duty alternators. If the drag is coming off the crank, or off the crank indirectly off the camchain to the cam gear, it is still drag. To a point, it is still drag if on the driveshafts, although they are somewhat disconnected when a clutch is pushed in..

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PostPosted: Fri Mar 26, 2010 12:11 am 
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I would do unspeakable things for a cast 10v cam cover...

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PostPosted: Fri Mar 26, 2010 5:32 am 
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:stupid: Or one of the 20v'ers........Or how about one the imsa heads!!? 8)


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PostPosted: Fri Mar 26, 2010 8:06 am 
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Frank the quattro tank wrote:
Why not go driveshaft driven (weren't the alternators driveshaft driven)? Wouldn't that create a *lot* more drag on the engine?


Without knowing any more details than they had to develop a special power steering pump to make it work...

Driveshaft driven alternators require the vehicle to be moving. They also require that the vehicle have a functioning driveshaft. Enough rally cars have limped in with half of their running gear missing that they may have taken THAT into consideration.

Servicability could have also been a concern - the alternator could be mounted safely inside the vehicle, and it could be located anywhere they could stick hoses to it. A driveshaft mounted unit could require messing with if you have to change the driveshaft or diff, and if it is mounted inside the vehicle, its location is pretty much dictated by the drive.

Plus, that's even more modifications that need to be done to the tub. What I have read about the rally vehicles is that they were given a minimum of preparation to work and be presentable. Where you and I would carefully trim panels in order to fit the flared outer-fenders, the rally cars were beat and hacked on.

One thing that is really important, I think: You can drive the alternator at a constant speed. Max output at idle is possible.


One other thing to keep in mind - of all of the shortcomings that the short wheelbase Audis had, having enough power was not one of them. They could make the power, the problem was putting it down. Thus the massive aerodynamics in an attempt to gain more grip.

BTW - Here's the article where I found out about the hydraulic alternator: http://homepage.virgin.net/shalco.com/quattro_s1.htm

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PostPosted: Tue Mar 30, 2010 1:16 am 
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Frank the quattro tank wrote:
Why not go driveshaft driven (weren't the alternators driveshaft driven)? Wouldn't that create a *lot* more drag on the engine?


I think the Alternators were only driveshaft driven on the IMSA and other Road / track cars. I think hydraulic pumps were also in the back seat driven off the driveshaft as well.

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PostPosted: Mon Apr 12, 2010 5:22 pm 
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anybody wanna lend me a pair of pants to hold on to?

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Last edited by fafwa45 on Thu Jul 15, 2010 8:44 pm, edited 1 time in total.

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PostPosted: Thu Jul 15, 2010 12:46 pm 
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very nice, i've not seen these pics before


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PostPosted: Mon Jul 19, 2010 3:19 am 
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Sweet. I'm really digging the raw dash, with all the relays and such mounted right there.

Guess that tugs at my utilitarian side. If this (second or third) dash cracks I might go that route :dur:

Is there any shots of the 200q rally car's engine and interior? I only have the one picture.

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PostPosted: Mon Jul 19, 2010 2:58 pm 
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owdlvr wrote:
Isn't that an empty ecu connector in the passenger side foot well?


SEMS in a suitcase :D

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PostPosted: Wed Sep 15, 2010 8:08 pm 
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quattro v1.0 wrote:
I would do unspeakable things for a cast 10v cam cover...


:stupid: I was just thinking the same thing. lol

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PostPosted: Thu Sep 16, 2010 12:24 pm 
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zarati wrote:
Hey, Whats the big round thing on the back of the Valve Cover on the 20v's? All three variations here have the same device.

Image



This is the power steering pump. Even the 10v had it cam riven, cleans up the front end for stuff like a BIG intercooler.

BTW the last car in the pics posted by Derek is NOT a Pike Peak car, it's not even a proper S1. It is an old works Sport that was raced by Tom Hammond who later in his career converted it with an S1 kit. The shift gate in fact is a custom thing that Tom had made.

BTW the three injectors are, 2 for fuel and 1 for water injection.

HTH

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 Post subject: Re: hold onto your pants...
PostPosted: Sun Dec 12, 2010 8:08 am 
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so much want. and thats a lot of switches..

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PostPosted: Fri Dec 17, 2010 10:28 pm 
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zarati wrote:
Hey, Whats the big round thing on the back of the Valve Cover on the 20v's? All three variations here have the same device.

Image



Long shot but....... Does it have anything to do with variable cam timing on the exhaust side?

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PostPosted: Sat Dec 18, 2010 8:12 am 
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topher wrote:
zarati wrote:
Hey, Whats the big round thing on the back of the Valve Cover on the 20v's? All three variations here have the same device.




Long shot but....... Does it have anything to do with variable cam timing on the exhaust side?


It's a power steering pump as per above

Hope this helps

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PostPosted: Tue Dec 28, 2010 11:38 am 
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Do we have any engine specs on any of these cars? Or is all of that still top-secret?

Stuff like turbo size, compression, displacement, est. HP, etc... just for grins.

Brendan

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PostPosted: Sun Jan 30, 2011 10:02 pm 
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Thanks you very much share with us good info!!!


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PostPosted: Tue Mar 01, 2011 6:01 pm 
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Marko wrote:
Sweet. I'm really digging the raw dash, with all the relays and such mounted right there.

Guess that tugs at my utilitarian side. If this (second or third) dash cracks I might go that route :dur:

Is there any shots of the 200q rally car's engine and interior? I only have the one picture.

I know that this was an old post but I do have something for you... if you are still interested. I have 40 pictures of that audi 200. I am not sure how to post them all. This is a link if you want to get all at a time: http://www54.zippyshare.com/v/56372610/file.html

And the same pictures separately so you can pick the interesting ones only:
ImageImageImageImageImageImageImageImageImageImageImageImageImageImageImageImageImageImageImageImageImageImageImageImageImageImageImageImageImageImageImageImageImageImageImageImageImageImageImageImage

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PostPosted: Sat Sep 17, 2011 9:54 pm 
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Wow, thank you for bumping this bot... I hadn't seen the 40 200 pics yet! :)

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PostPosted: Sat Sep 17, 2011 9:57 pm 
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PostPosted: Sun Sep 18, 2011 12:21 am 
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I lost my pants on page one

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PostPosted: Sun Sep 18, 2011 10:49 am 
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loxxrider wrote:
Wow, thank you for bumping this bot... I hadn't seen the 40 200 pics yet! :)


same!!

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PostPosted: Sun Sep 18, 2011 5:37 pm 
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Volkcar wrote:
I lost my pants on page one


:lol: kinda feel silly; i was never wearing pants, so i didnt take this thread's title seriously (didnt think it would effect me). but now i have lost my shorts! WHY DIDNT YOU WARN PEOPLE WHO ARE WEARING SHORTS??

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