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Historic articles and other interesting 924 related content
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ideola  



Joined: 01 Oct 2004
Posts: 15462
Location: Woodstock IL

PostPosted: Tue Jun 23, 2009 12:17 am    Post subject: Historic articles and other interesting 924 related content Reply with quote

Courtesy of 924-76, here is a fascinating article from the July 2006 issue of 911 & Porsche World on the 924 engine. Some interesting little tidbits in this article, including the continued perpetuation of the Dennet 2.4L myth* (click thumbnail for full article; use the picasa magnify feature to enlarge once you arrive at the image).

Engine Tech: Porsche 924
by Paul Davies
911 & Porsche World, July 2006

*See why the 2.4L claim is a myth and not fact.
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15 981 GTS | 88 924S SE | 82 931 Holbert | 82 931 Rallye | 81 937 | 81 Euro 931 | 81 Weissach | 80 US 928 | 80 US 931 '941' | 80 US 931 | 80 931 GTR | 79 Sebring | 78 D-Prod Replica | 78 w/D-Prod kit | 78 Poli-Form | 78 Limited Edition | 77 Martini


Last edited by ideola on Thu Jul 02, 2009 11:27 am; edited 2 times in total
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924-76  



Joined: 05 Jun 2006
Posts: 1277
Location: Ontario, Canada

PostPosted: Tue Jun 23, 2009 5:33 am    Post subject: Reply with quote

Thank you again for your help.
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agfisher  



Joined: 09 May 2007
Posts: 421
Location: West Hartford, CT

PostPosted: Wed Jun 24, 2009 2:22 am    Post subject: Reply with quote

If anyone is interested I PDF'd the article and can send it to them.

Adam
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ideola  



Joined: 01 Oct 2004
Posts: 15462
Location: Woodstock IL

PostPosted: Wed Jun 24, 2009 2:32 am    Post subject: Reply with quote

I also have it as a high resolution PDF (28MB). Unfortunately, Google docs doesn't allow sharing of PDFs at the moment.
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Rasta Monsta  



Joined: 12 Jul 2006
Posts: 11332
Location: PacNW

PostPosted: Wed Jun 24, 2009 4:23 am    Post subject: Reply with quote

Interesting that there is no mention of the anguish we have been going through lately in terms of NLA parts.
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Power Tryp  



Joined: 16 Apr 2009
Posts: 419
Location: Calgary, Alberta

PostPosted: Wed Jun 24, 2009 2:45 pm    Post subject: Reply with quote

The article was writen in 06 rasta, I would think more stuff was available even 3 years ago.
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!tom  



Joined: 28 Aug 2006
Posts: 1869
Location: Victoria, BC Canada

PostPosted: Wed Jun 24, 2009 4:29 pm    Post subject: Reply with quote

Also interesting, in light of the main bearing group buy, that the thrust bearing was a different material than the plain bearings.

Is this the case with the new run?
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Raceboy  



Joined: 01 Mar 2004
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Location: Estonia, Europe

PostPosted: Wed Jun 24, 2009 6:23 pm    Post subject: Reply with quote

I read the article and they mentioned that 931 tappets are lighter than NA's? Haven't seen anything different in those over the years, perhaps an error?

And it's weird that they recommend using carbs on a street car? First suggestion for truly more power would be EFI route that improves fuel mileage AND power, not to mention excellent starting at all temperatures and better driveability, which carbs definitely don't provide.

And last, of course, boosting the 924 engine as this is the only form that truly improves power output on NA engine because of the crappy port shape.
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ideola  



Joined: 01 Oct 2004
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Location: Woodstock IL

PostPosted: Wed Jun 24, 2009 10:12 pm    Post subject: Reply with quote

Yeah, I noted the info on the thrust bearing as well as the lifters. I'm not sure I believe either one, it's hard to say, as they don't cite a source for that info. The tappets I've seen from NAs and 931s all look identical, but of course, I've never had them on scales to compare...would certainly be interesting to find out. Regarding the thrust bearing, I don't think we have a contact at King to find out...

As for EFI, remember, this article was written in 2006. I don't know what the state of MS was at that point in history, but these guys were talking to old school guys, and it appears to me that was their only source of info for the article. Not exactly a shining journalistic example. It would certainly be interesting to have a more thorough and up-to-date article written...
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Raceboy  



Joined: 01 Mar 2004
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PostPosted: Wed Jun 24, 2009 10:18 pm    Post subject: Reply with quote

I installed VEMS on my stock NA in 2006....
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'67 911 Irish Green hotrod, 2.4S
'78 911 SC 2.5 ss Turbo "Martini"
'82 924S/931 "Gulf" racecar, 330 hp, sold
'84 924, turbocharged, sold.
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ideola  



Joined: 01 Oct 2004
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PostPosted: Wed Jun 24, 2009 10:22 pm    Post subject: Reply with quote

Understood, but as I said, the author appears to have only interviewed one guy, who was an old school carb racer. Even in 2006, though, I'm wondering how many running examples there were worldwide of 924s running EFI??? Probably less than 20 or so...
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wombat  



Joined: 07 Jun 2008
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PostPosted: Wed Jun 24, 2009 10:48 pm    Post subject: Reply with quote

Nice article thanks for providing this one.
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ideola  



Joined: 01 Oct 2004
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PostPosted: Thu Jul 02, 2009 11:28 am    Post subject: Reply with quote

More historical content


Firsthand Report: Driving the new Porsche and BMW
by Bill Hartford & Michael Lamm
Popular Mechanics, September 1976

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ideola  



Joined: 01 Oct 2004
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PostPosted: Thu Jul 02, 2009 11:28 am    Post subject: Reply with quote

Firsthand Report: Driving the Porsche 924 Turbo
by Michael Lamm
Popular Mechanics, April 1979

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ideola  



Joined: 01 Oct 2004
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PostPosted: Thu Jul 02, 2009 11:28 am    Post subject: Reply with quote

Car test: Rotary Powered Mazda RX-7 vs. Porsche 924 and BMW 320i
by Jim Dunne & Ed Jacobs
Popular Science, November 1978

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