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post #1 of 19 (permalink) Old 02-10-2019, 06:34 AM Thread Starter
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1967 Super

After careful consideration and input from Alfa BB members, I am shelving the original 1600 engine to my Super, and having Mike Besic build up a 1750 engine and transmission for me. After speaking with him once, I immediately felt like he was the right person for the job. Knowledgeable and very helpful. He is going to "breath" on it a bit to give me enhanced performance but still "streetable. Also, it will be run in and dynoed for that little bit of extra oomph! A drop in, in my Super, while appearing totally stock. Also, he recommends a close gear ratio GTA gear set from Alfaholics. I'm psyched and will keep everyone posted on the progress of my latest project.
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post #2 of 19 (permalink) Old 02-10-2019, 08:50 AM
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Sounds like your Super will be a lot of fun when you get it all done. Excited to see your updates and a driving video when all said and done!

1960 Land Rover Series II, 1972 AR Giulia Super 1300
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post #3 of 19 (permalink) Old 02-11-2019, 08:05 AM
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If you do a lot of freeway/high speed driving, you might consider a 4.10 rear axle as part of this, especially if you end up with a .85 fifth gear. A strong 1750 will go through the gears very quickly with a 4.55 rear diff and be at a pretty rpm at freeway speeds with a .85 fifth.

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post #4 of 19 (permalink) Old 02-11-2019, 08:27 AM
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If you do a lot of freeway/high speed driving, you might consider a 4.10 rear axle as part of this, especially if you end up with a .85 fifth gear. A strong 1750 will go through the gears very quickly with a 4.55 rear diff and be at a pretty rpm at freeway speeds with a .85 fifth.
The factory Alfa c/r gearset (mine is 10516 TI Super) was designed to use the box's original 5th gear. Since mine was going to be used in a street driven car, we opted to keep the original 0.79 stock 5th. I don't know if the AH gearset allows for that kind of swapping, but it if it does, I'd also recommend that you keep the 0.79 5th.

Re: 4.10 rear ends. I've gone back and forth about this. I have a 4.56 LSD that I can install but I keep thinking that a 4.10 might even be better. Andrew: have you driven a 4.10 with a close ratio gearset? I love the c/r box's long 1st. but I keep thinking that it might not work well with the longer 4.10 gears.

Jim . . . '72 Super 1300, '70, 1750GTV, 2nd series,
'62, Lancia Flaminia Zagato3c, 2nd series
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post #5 of 19 (permalink) Old 02-11-2019, 08:45 AM
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4.30 or 10/43 is your answer. Works really well with C/R. Last time I checked HeinBrand had new 10/43 R/P in stock for a reasonable amount. And yes .79 5th is probably preferable.
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post #6 of 19 (permalink) Old 02-11-2019, 05:02 PM
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You are in very good hands with Mike Besic. Excited to hear about the progress.
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Bill Maloney

1969 Giulia Super Biscione
2017 Giulia TI AWD
1965 Fiat 1500 Cabriolet
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post #7 of 19 (permalink) Old 02-13-2019, 06:50 AM
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4.3 axles were never sold in the US, though a few are around. 4.1 are a dime a dozen from Bosch Spiders.
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post #8 of 19 (permalink) Old 02-13-2019, 08:54 AM
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I have a warm 1750 and the 4.10 rear in my 1968 Super and it makes a delightful street combo!
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'67 GTV
'68 Giulia Super

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post #9 of 19 (permalink) Old 02-13-2019, 09:46 AM
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Same here. I was unhappy with the 4.10 and 1750 until I brought my engine up a bit more, now I like it. I still feel like the 4.10 has me driving too fast all the time in the city though.
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post #10 of 19 (permalink) Old 02-13-2019, 09:54 AM
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Tire n wheel combo may affect this as well, sure Mike can help you figure all that out and you will end up with an amazing scoot
cheers

Peter Inshaw 59 Touring Spider 2.0, 63 Spider 1600, 67 GTV 1750, 67 Giulia Super Project, 73 Berlina TS, 91 Spider Veloce, 2018 Stelvio TI Sport
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post #11 of 19 (permalink) Old 02-13-2019, 04:15 PM
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Great project, keep us posted

Eliseo Carrillo
105.30....Scalino
101.23....Little Green Spider - now back home with Dr. Rex
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post #12 of 19 (permalink) Old 02-14-2019, 12:36 PM
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My '70 GTV is the European version with Webers, small tail lights, and a 4.10 rear end ratio. For many years this was my daily driver. Before I bought it I'd always driven Alfas with 4.56 rear ends. I never liked that combination with a stock gear-box, mainly because it made 1st gear much to short. With the 4.10 that complaint completely disappears, giving you a very usable 1st gear along with, overall, a gearbox with noticably longer and more flexible gear ratios. I immediately liked driving my 1750 GTV better than my 1600 GTV for this reason alone. Frankly, I enjoyed the longer gears better than I did the few hundred rpm reduction at highway speeds. Although I haven't tried it with lower-numerical rear-ends, the much longer 2.54 1st of the c/r box works very well with the 4.56 rear end. Although it's an expensive mod, the c/r box dramatically enhances a 105 car's driving dynamics.

Jim . . . '72 Super 1300, '70, 1750GTV, 2nd series,
'62, Lancia Flaminia Zagato3c, 2nd series

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post #13 of 19 (permalink) Old 02-14-2019, 02:07 PM
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Nice car and interesting project.
I had two 101s with "warm" 2 L.
And the C/R with the 4.10.
On mountain "B" roads, I would have liked the 4.3.
But could not find one.

Bob,
Avatar is the 68 Super, bought new.
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post #14 of 19 (permalink) Old 02-14-2019, 03:32 PM
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Seen on a T-shirt in Aspin. "If God had intended Texas to ski, He would have given them a mountain".
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Jim . . . '72 Super 1300, '70, 1750GTV, 2nd series,
'62, Lancia Flaminia Zagato3c, 2nd series
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post #15 of 19 (permalink) Old 02-14-2019, 03:53 PM
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@ 180 0ut- Totally off topic but you didn't talk about the original version of that infamous bumper sticker- much beloved in Colorado: "If God had intended for Texans to ski he would have made bull**** white."
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