Audi A4 BTCC / STW engine specs - 305 bhp from an N/A valver.

I wondered were they mounted the alternator and power steering pump.

 

4 teeth on the flywheel only - for a very special engine - makes me think that there is actually very little advantage of crank-triggered timing compared with dizzy-triggered timing - clearly 60 teeth is not required for performance at least

 

Cam sensor fitted:

 

thats probably for sequential injection - note wiggins connectors on water pipes....very trick

 

Yep, just for completeness.

 

More..

 

Above post revised: this relates to BTCC/STW:

 

HPR is really on top of his game this year

 

Cracking - cheers for that.

I'm struggling to find much BTCC in-car anywhere.

Just these promo vids which... well, they're a bit PR & chat.

 

in car with Murray Walker,where these the same spec?

[YOUTUBE]<object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/206CGJ0dE-M&hl=en_GB&fs=1&"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/206CGJ0dE-M&hl=en_GB&fs=1&" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object>[/YOUTUBE]

 

Great find - definitely of the same stock as the BTCC / STW cars.

Murray Walker is a commentating legend

 

Murry is Awesome, always will be.

 

Audi was pretty good also

 

"Sen-sation-al"

The Voice of Motor Racing.

 

Another engine block pic - the best one so far I think, showing how close the 85mm bores are together. Fag paper job!


What are these 'threads' poking out the front of each cylinder? Sensors ....?

This is a late-spec bottom end, according to HPR, with 2 squish zones.

 

knock sensors??

 

Are they recognisable as them?

Whereabouts are knock sensor(s) usually fitted on a block?

 

Don't recognise them, but they look like they are measuring something combustion related
Stock ones are usually lower down



Just found a nice little audi 80 write
http://www.favdl.net/component/content/article/34-zgodovina/84-audi-80-competition

 

That's more my vague recollection. I must have seen one at some point somewhere.


I guess it's all frequency related, so they can pick knock up further down, but perhaps with a great precision, sat just opposite where the explosion occurs?

Nice find on the Audi 80 link there.

Just to pull these vids out of it: