Motronic Spider Cam - Page 2 - Alfa Romeo Bulletin Board & Forums
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post #16 of 20 (permalink) Old 04-28-2016, 11:18 AM Thread Starter
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Makes sense now. If I remember right, this came from Europe, so it's the same cam with a different part#.



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Originally Posted by Q.V. View Post
Yep, late (euro) Alfetta with Motronic. Should measure 41x30mm across the lobe (if not reground). IAP used to sell the reground ones; where have they gone now?

P.S. Here's a PDF manual on Euro engines; look for 017.13 specs: http://www.vintagegarage.ru/files/Petrol%20engines.pdf
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Stacy Faught -- Alfas: 1983 GTV-6 (3.5l), 2018 Giulia Quadrifoglio. Non-Alfas: 1991 Corvette ZR-1 (500+hp Haibeck-built 32v 5.7l)
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post #17 of 20 (permalink) Old 04-28-2016, 11:24 AM
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Originally Posted by Q.V. View Post
Yep, late (euro) Alfetta with Motronic
it is an odd beast that, I was reading it has Bosch Motronic ML 2.1 with the Bosch 0 261 200 044 ECU and (similar to the l-jet spiders) 2 flywheel sensors Bosch 0 261 210 001

wierd.
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post #18 of 20 (permalink) Old 04-28-2016, 11:59 AM
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Weird but true
And the same cam should appear on S4 2000 Veloce at least as an option.

1975 Alfetta; ex 1973 Spider; ex 1984 Alfetta Quadrifoglio Oro
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post #19 of 20 (permalink) Old 04-28-2016, 12:09 PM
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Originally Posted by onethumb View Post
Makes sense now. If I remember right, this came from Europe, so it's the same cam with a different part#.
Where is the timing mark on this head? It should be 12.45" degrees to the intake side (to give mininum overlap at idle). I see the head has recessed follower wells, cast like that, not milled, so it's (probably) already a VVT version.

1975 Alfetta; ex 1973 Spider; ex 1984 Alfetta Quadrifoglio Oro
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post #20 of 20 (permalink) Old 06-12-2016, 05:09 AM
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Originally Posted by spiderserie4 View Post
although I am not sure of the source of the following information, I actually have it written down in one of my files. So either I got the info from here, or I just made it up.....but somehow doubt i'm smart enough to make up such things!

anyway be it right or be it wrong, these were my notes for the S4 motronic VVT inlet cam:

valve clearance - 0.015-0.018" (0.381-0.4572mm)
nominal lift - 11mm
duration - 299*12'
timing - opens 24*44' to 17*44'. closes 94*28' to 101*28'.
lobe center - 125*30'


I'm sure RJ, if he's looking in, will be able to comment.
Im not sure I understand the numbers here. Its a total of 299 degrees?

But when does intake open and close? For instance, the QV/S/SZ cams for the 12v V6 is 33-74 intake timing and 67-30 on exhaust. How would those numbers look on the 2.0 VVT NORD engine?

-83 Giulietta 2.0 TI -84 GTV6 3.0 Racer -85 GTV6 2.5 Grand Prix -92 164 2.0 V6 TB -04 GT 1.9JTD -86 505 Turbo Injection -98 Ram 2500 5.9 Cummins
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