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Aluminum Turbo Mount
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Mike9311  



Joined: 14 Dec 2004
Posts: 657
Location: Chicago-ish

PostPosted: Fri Sep 02, 2016 5:38 am    Post subject: Reply with quote

agfisher wrote:
Mike9311 wrote:
(Ideola) The offset idea seems to work but really only with the larger 88mm bore. The over lay I made in CAD is with 88mm bores. Pistons might be strange too. If I were do to a direct swap the chambers could be scribbed to the block and reworked to reflect the new situation. On other fronts, I have been looking at the possibility of do a rocker arm setup which would allow for a proper spacing


Just because I'm curious, if you off-center the bores would you also need to fashion a brand new crankshaft to deal with the off-centered rods?


I think what Ideola meant was that you could put a 96mm bore center head on to a 95mm bore center block.

What was nice about the Mitsu head was that it came from a smaller bore motor thus grouping the 4 valves for a smaller bore. Now pop that head theoretically on to a 924 block that was bored out to say 88mm as in the example, it would work, albeit each combustion chamber would be uniquely shifted for a corresponding bore. Ignoring mounting and coolant passages of course. If I made a billet head utilizing existing mitsu, volvo, or other hardware plus cam(s) but designed the head for the 924 block and as much stock 924 bolt on parts as makes sense, we are in business.

Totally Off Topic...dropping a new battery into the '82 and possibly test driving it home. I need a 931 to drive to 92Forty!
_________________
1980 931 ...off with the cobwebs
1982 931 Entwicklungsfahrzeug
1979 924 NA M471/M481 / ohne M650 Herausnehmbares Dach
0.5 1982 931 smashed parts car
1982 931 parts car?
1980 924 NA (R&D lightweight)
1982 931 WB wana-be GTR race car
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ideola  



Joined: 01 Oct 2004
Posts: 15499
Location: Woodstock IL

PostPosted: Fri Sep 02, 2016 5:57 am    Post subject: Reply with quote

Mike9311 wrote:
I need a 931 to drive to 92Forty!



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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
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Rasta Monsta  



Joined: 12 Jul 2006
Posts: 11354
Location: PacNW

PostPosted: Sun Oct 02, 2016 1:53 am    Post subject: Reply with quote

New project idea:


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Mike9311  



Joined: 14 Dec 2004
Posts: 657
Location: Chicago-ish

PostPosted: Sun Oct 02, 2016 9:12 am    Post subject: Reply with quote

Rasta Monsta wrote:
New project idea:



Is this a part for the turboencabulator, built, I believe, by Rockwell International? You seem to have gotten a hold of a top secret drawing
_________________
1980 931 ...off with the cobwebs
1982 931 Entwicklungsfahrzeug
1979 924 NA M471/M481 / ohne M650 Herausnehmbares Dach
0.5 1982 931 smashed parts car
1982 931 parts car?
1980 924 NA (R&D lightweight)
1982 931 WB wana-be GTR race car
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macBdog  



Joined: 16 Aug 2004
Posts: 1099
Location: Brisbane, Australia

PostPosted: Fri Oct 07, 2016 2:55 pm    Post subject: Reply with quote

Mike9311 wrote:

Is this a part for the turboencabulator, built, I believe, by Rockwell International?


I'm not sure, I can't see the presence of cardinal grammeters or nova-trunnions on the dingle arm.
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1979 931 with a 350 chev
1973 911E with EFI
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Mike9311  



Joined: 14 Dec 2004
Posts: 657
Location: Chicago-ish

PostPosted: Mon May 21, 2018 6:13 am    Post subject: Reply with quote

I've had a couple people ask and at least one car that needs to get this installed. Haven't posted much but have been working on a few 924 things...this being one

So if anyone remembers I had a code issue that killed the last one (I lodged a broken tool in it ). Works but I need a clean one

Here is an updated video of one being produced now. My issue is now long solved. Just needed to apply it to this mount project. As I progress, I am improving production speed despite my choice of somewhat flowing organic surfaces in some areas.

https://vimeo.com/270986714
_________________
1980 931 ...off with the cobwebs
1982 931 Entwicklungsfahrzeug
1979 924 NA M471/M481 / ohne M650 Herausnehmbares Dach
0.5 1982 931 smashed parts car
1982 931 parts car?
1980 924 NA (R&D lightweight)
1982 931 WB wana-be GTR race car
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Mike9311  



Joined: 14 Dec 2004
Posts: 657
Location: Chicago-ish

PostPosted: Sat Jun 09, 2018 4:21 am    Post subject: Reply with quote

Essentially done with tumbled finish (need to adjust size of oil feed hole if anyone notices)

Almost 2 Lbs US or -820g shaved away. Probably could tweak this further..

Going to installation phase

[/url]

Edit: Bottom Pic


_________________
1980 931 ...off with the cobwebs
1982 931 Entwicklungsfahrzeug
1979 924 NA M471/M481 / ohne M650 Herausnehmbares Dach
0.5 1982 931 smashed parts car
1982 931 parts car?
1980 924 NA (R&D lightweight)
1982 931 WB wana-be GTR race car
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View user's profile Send private message
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