Best performance mods for a '91, cheapest 1st!? - Page 2 - Alfa Romeo Bulletin Board & Forums
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post #16 of 18 (permalink) Old 03-08-2006, 08:15 AM
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Quote:
Originally Posted by JoeCab
The S4 Spider has the 4.10 differential ratio (except for the autos). This is the same as the late Spica cars and all of the S3 cars.

Joe
Now you got me on this one Joe. I had thought that the change to the 4.1 rear diff came along at the change over to bosch....so 82. What year did the diff switch over from the 4.56? My 78 has the 4.55.

Best Regards,
John M

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1978 AR Spider Veloce 2000....the first and still here...Bianco
1984 AR Spider Veloce............the second & gone to the parts bin....Rosso
1992 AR Spider Veloce............the third and still here...Bianco
1991 AR 164L........................the fourth and traded on the SS....Rosso
1965 AR Sprint Speciale..........the fifth...in boxes....sold....Bianco
1978 AR Spider Veloce 2000....the sixth gone to be a parts car...slow black
1967 AR Giulia Sprint GT.........the seventh with Gregg and sold......Rosso
1993 AR Spider Veloce............the eighth with Gregg and still here....Verde Inglese
1982 Ferrari 308 GTSi.............the first and still here....Azzurro
1999 Ferrari 355F1 Spider........the second and still here....TdF Blue[/SIZE]

Last edited by John M; 03-08-2006 at 09:04 AM.
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post #17 of 18 (permalink) Old 03-08-2006, 08:49 AM
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Quote:
Originally Posted by John M
Now you got me on this one Joe. I had thought that the change to the 4.1 rear diff came along at the change over to bosch....so 82. What year did the diff switch over from the 4.55? My 78 has the 4.55.

Best Regards,
John M
I know the '81 model year had them. I thought some '80s did too.

Joe
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post #18 of 18 (permalink) Old 03-08-2006, 01:52 PM
 
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Upgrade spider

I purchased the squadra chip, and replace the air cleaner with a Power Stack from IAP. It made a nice difference in driveability, mid-range torque. I have an Ansa exhaust which works well. The overall change is smoother accleration, high rev range, just a little more fun. It is not a huge difference,but well worth the money. Suspension upgrades, shocks, springs, bushings and tires can take the car to another level.
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