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Old 08-23-2004, 06:01 PM   #1
peter head
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Default 4 bar absolute on Subaru WRC car!!!

Interesting article was post on the the i-club thread - a very technical article on how Prodrive manages their WRC cars

Not sure how to make a hyperlink to www.i-club thread. Worth reading... If the link doesn't work, go to i-club and do a search on "water injection".
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Old 08-23-2004, 10:31 PM   #2
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i-club.com/forums/showthread.php?t=69783
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Old 08-24-2004, 11:57 AM   #3
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Great link!

Thanks for the heads up, I would have never seen it, as I NEVER go to I-club

+1 karma for j00
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Old 08-24-2004, 02:00 PM   #4
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The article is AMAZING! Everyone needs to read it.
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Old 08-24-2004, 02:22 PM   #5
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Hmm... 10:1+ compression, up to 45psi of boost, 98 octane fuel, water injection... and narrower crank journal bearings. These guys are nuts.
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Old 08-24-2004, 02:39 PM   #6
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and the 10 bar fuel pressure! What is this a freakin' diesel?!
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Old 08-24-2004, 02:44 PM   #7
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having to run 5* timing at 2000??? WOW. i cant imagine running that much boost at such a low rpm.
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Old 08-24-2004, 03:30 PM   #8
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good god, you cannot link that site

Last edited by bboy; 08-24-2004 at 03:40 PM.
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Old 08-24-2004, 07:16 PM   #9
peter head
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Is there a problem putting up a direct clickable link to that site?
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Old 08-24-2004, 07:19 PM   #10
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Quote:
Originally Posted by 8Complex
Hmm... 10:1+ compression, up to 45psi of boost, 98 octane fuel, water injection... and narrower crank journal bearings. These guys are nuts.
Nick,

10:1 and 45 psi sounds like their Pikes Peak setup. (or any high elevation) That is not likely being used in sea level rallies.

Still sickening,
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Old 08-25-2004, 12:38 AM   #11
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Ben -

Nah, they only disclose that it is "over 10:1". It makes me tingle all over just thinking about it.


Direct link to article: http://64.119.173.9/forums/showthread.php?t=69783
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Old 08-25-2004, 03:56 AM   #12
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bespoke:

Main Entry: beˇspeak
Pronunciation: bi-'spEk
Function: transitive verb
Inflected Form(s): beˇspoke /-'spOk/; beˇspoˇken /-'spO-k&n/; -speakˇing
1 : to hire, engage, or claim beforehand
2 : to speak to especially with formality : ADDRESS
3 : REQUEST <bespeak a favor>
4 a : INDICATE, SIGNIFY <her performance bespeaks considerable practice> b : to show beforehand : FORETELL

If you read the article this makes sense.
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Old 08-25-2004, 04:53 AM   #13
peter head
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Quote:
Originally Posted by 8Complex
Ben -

Nah, they only disclose that it is "over 10:1". It makes me tingle all over just thinking about it.


Direct link to article: http://64.119.173.9/forums/showthread.php?t=69783

I wonder if it is possible to run that engine without water injection. It also mentioned that WI may be banned next year.
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Old 08-25-2004, 09:30 AM   #14
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Quote:
Originally Posted by peter head
I wonder if it is possible to run that engine without water injection. It also mentioned that WI may be banned next year.
As the article suggests they will just go back to dumping fuel to keep it cool.

M
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Old 08-25-2004, 10:03 AM   #15
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Yes, they run without WI at times. They went over that in the article.

Heh, I know it's a long article, but it's very good. Even managed to keep my ADD-inflected attention span.

They did, as bikerboy said, mention that they will go back to fuel dumping, but I think that environmental impacts might help in arguing to keep the WI systems, as they were saying in the article.
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Old 08-25-2004, 10:13 AM   #16
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Quote:
Originally Posted by 8Complex
Yes, they run without WI at times. They went over that in the article.

Heh, I know it's a long article, but it's very good. Even managed to keep my ADD-inflected attention span.

They did, as bikerboy said, mention that they will go back to fuel dumping, but I think that environmental impacts might help in arguing to keep the WI systems, as they were saying in the article.
Currently running without WI "takes the edge off"

As for fuel dumping, that was the writer of the article hypothesising.

Cheers

Simon
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Old 08-25-2004, 10:26 AM   #17
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Awesome article, I'm going to pull a bitorrent post...

Thanks for sharing!
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Old 08-25-2004, 03:49 PM   #18
peter head
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I gathered from the "waterinjection.info" Forum (Competition Specific section) that the possible reason for the banning is a cost cutting exercise. WI can not possibly be THAT costly? you can pick one up on the ebay for less than $299 and a progressive one at $399

Last edited by peter head; 08-26-2004 at 03:37 AM.
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