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WEASEL149
Joined: 19 Aug 2005
Posts: 595
Location: UK, Sheffield
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 Posted: Mon Mar 18, 2013 4:55 am Post subject: |
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Pic of the turbo - K26/K27 with 3070 compressor wheel good for ~570cfm.
I'm tempted to use a #8 turbine housing to reduce back pressure but fear it will move the boost threshold up too high.
I have some Techline Turbo X high temp coating to apply to the exhaust manifold, turbine housing and probably the down pipe.
Side by side with original turbo:-
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1979 UK 932 |
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WEASEL149
Joined: 19 Aug 2005
Posts: 595
Location: UK, Sheffield
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| Posted: Mon Mar 18, 2013 5:02 am Post subject: |
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65mm BMW Throttle from a 328.
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1979 UK 932
Last edited by WEASEL149 on Mon Mar 18, 2013 5:08 am; edited 1 time in total |
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WEASEL149
Joined: 19 Aug 2005
Posts: 595
Location: UK, Sheffield
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| Posted: Mon Mar 18, 2013 5:07 am Post subject: |
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Clutch had over 50% wear so bought a new stock plate.
This will be fitted in conjunction with a 911 alloy pressure plate to lose a little rotating mass and increase clamping force.
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1979 UK 932 |
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WEASEL149
Joined: 19 Aug 2005
Posts: 595
Location: UK, Sheffield
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| Posted: Mon Mar 18, 2013 5:18 am Post subject: |
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Stock cam lobe shape:-
Had a custom cam ground by AGAP of Sweden on a new cam core.
237°@0.050" lift for the inlet, with max lift 12.2mm/0.480"
229°@0.050" lift for the exhaust, with max lift 11.9mm/0.469"
Ground on a 112° lobe separation angle.
This will be fitted along with solid lifters from Sten Parner Motorsport (Thanks Gegge)
Shape of new cam:-
Old and new cam side by side:-
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1979 UK 932 |
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Arvidw
Joined: 20 Sep 2009
Posts: 227
Location: The Nederlands (Europe)
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| Posted: Mon Mar 18, 2013 7:27 am Post subject: |
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| WEASEL149 wrote: | | My problems in general are budget |
It's good to see you managed to solve the budget problem  Those are some extremely nice goodies you have for your 932. I'm eager to see how it is all going to come together
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Porsche 924 2.0 Kompressor 136.1wHp @ 5650rpm / 201.9wNm @ 3900rpm (dyno @ dp-engineering.nl) |
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WEASEL149
Joined: 19 Aug 2005
Posts: 595
Location: UK, Sheffield
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| Posted: Tue Mar 19, 2013 12:36 am Post subject: |
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| Arvidw wrote: | | It's good to see you managed to solve the budget problem Those are some extremely nice goodies you have for your 932. I'm eager to see how it is all going to come together |
 Hi Arwid. The cost has been spread out since August 2011 and a lot of the parts are second-hand.
The pistons were less than half the price of new OEM Mahle so that was an easy decision and the cam worked out roughly the same cost as new OEM from Porsche.
I didn't want to compromise much on the parts so made it a long-term project from the start.
Hopefully it all goes back together ok...
I do read your thread - your 924 Kompressor project is impressive with some clever engineering 
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1979 UK 932 |
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WEASEL149
Joined: 19 Aug 2005
Posts: 595
Location: UK, Sheffield
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| Posted: Tue Mar 19, 2013 12:51 am Post subject: |
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| morghen wrote: | love that car !
keep going ! |
Thanks man, I will try
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1979 UK 932 |
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ideola
Joined: 01 Oct 2004
Posts: 15548
Location: Spring Lake MI
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| Posted: Tue Mar 19, 2013 12:52 am Post subject: |
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Where did you find the alloy 911 pressure plate? Those seem to be very difficult to find over here...
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erstwhile owner of just about every 924 variant ever made |
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WEASEL149
Joined: 19 Aug 2005
Posts: 595
Location: UK, Sheffield
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| Posted: Tue Mar 19, 2013 2:17 am Post subject: |
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| ideola wrote: | | Where did you find the alloy 911 pressure plate? Those seem to be very difficult to find over here... |
Yeah I know what you mean, they're not easy to find here either.
It was a lucky fleabay find, used but in good condition. I was the only bidder so bagged it for a rather unbelievable £30.
I think you can get them new, but not cheap as part of a Sachs kit.
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1979 UK 932 |
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morghen
Joined: 21 Jan 2005
Posts: 8879
Location: Romania
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| Posted: Tue Mar 19, 2013 3:00 am Post subject: |
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| WEASEL149 wrote: | | It was a lucky fleabay find, used but in good condition. I was the only bidder so bagged it for a rather unbelievable £30. |
can you feel the hate going on right now ? 
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https://www.the924.com |
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James C
Joined: 12 Feb 2013
Posts: 21
Location: Akl NZ
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| Posted: Tue Mar 19, 2013 9:26 am Post subject: |
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I like where this thread is going.
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Sorry what? I couldn't hear you over my pop-up headlights. |
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WEASEL149
Joined: 19 Aug 2005
Posts: 595
Location: UK, Sheffield
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| Posted: Tue Mar 19, 2013 11:08 am Post subject: |
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| morghen wrote: | | WEASEL149 wrote: | | It was a lucky fleabay find, used but in good condition. I was the only bidder so bagged it for a rather unbelievable £30. |
can you feel the hate going on right now ? |
Haha! I must admit, it was probably my best and luckiest score.
Please don't hate me
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1979 UK 932 |
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Raceboy
Joined: 01 Mar 2004
Posts: 2326
Location: Estonia, Europe
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| Posted: Tue Mar 19, 2013 6:13 pm Post subject: |
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Nice build! And now get that engine together 
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'83 924 2.6 16v Turbo, 470hp
'67 911 2.4S hotrod
'90 944 S2 Cabriolet
'78 924 Carrera GT replica
'84 928 S, sold
'91 944 S2, sold
'82 924S/931 "Gulf", sold 
'84 924, turbocharged, sold.
http://www.facebook.com/vemsporsche |
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GeorgeV
Joined: 14 Mar 2010
Posts: 306
Location: Brisbane, Australia
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| Posted: Tue Mar 19, 2013 7:39 pm Post subject: |
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The car looks good Wes. Some of those parts look very pretty. Can't wait to see how it turns out.
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1981 932 with mods:
http://www.924board.org/viewtopic.php?t=37921 |
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WEASEL149
Joined: 19 Aug 2005
Posts: 595
Location: UK, Sheffield
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| Posted: Mon Mar 25, 2013 12:29 am Post subject: |
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| Raceboy wrote: | | Nice build! And now get that engine together |
Thanks! Just waiting for the bottom end to return from the machinist.
| GeorgeV wrote: | | The car looks good Wes. Some of those parts look very pretty. Can't wait to see how it turns out. |
Cheers, George. Hopefully they run as good as they look!
Can't wait to see your car back on the road, ripping up asphalt!
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1979 UK 932 |
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