Install of a 2 L Into The Giulietta Spider

[Subtle]

I bought the car in December, and have received tne intake plenum, motor mounts, and exhaust headers from Centerline. The plenum is nicely cast aluminum and the we have had the tubular headers coated--inside and out.

Picked up the aluminum flywheel needed to connect to the 1600 tranny from George in Annacortes, and Todd in Olympia has the 2 L removed from his GT Jr. and is ready to ship it.

Bought the 4.1 lsd from Jason in Arizona yesterday.

Hopefully all of this can be installed by early March.

[Alfajay]

Subtle:

Is that "early March" of 2008, or '09? Seriously, if you can get all this done in the next 30 days, you have my sincere admiration. The lore is that fitting 2L engines into 750/101 chassis takes some doing - even with the Centerline mounts, every application seems a bit unique.

Having advised you of this, I must admit that I was too chicken to do the conversion myself. I kept my Giulia fairly stock, retaining the 1600cc engine + cast iron headers, and just "abnormalizing" it with 1750 pistons, dual Webers, and 10508 cams. It still took me... well, "awhile" to get it together. For such a light car, the 1650cc engine has plenty of oomph. With a 2L, you'll be drag racing Corvettes.

What sort of a 4.1 LSD are you using? One from a late-model 115 car, or is a Giulietta Veloce 4.1, somehow converted to limited-slip?

Best of luck with the project!

[Subtle]

I think it is from a mid-80s Spider, which has the LS.

Completion by late March would be ideal. Gordon Raymond has provided some encouraging notes based upon his experience.

The thinking is that the engine will deliver 150 chp at least. Assume the weight at 2050 lbs and the ratio comes out at 13.6.

This compares with the Turbo Wagon(my daily driver) at 3300 and about 250 chp, or 13.2 lbs/hp.

Perhaps the Spider can use AWD?

[Subtle]

Another step today:

A friend with a pickup will help move the engine, in its crate out to Don's,
where he can get it ready for the install.

Also, came across a set of 101 close-ratio gears. The stock gearing seems incredibly low in first and second.

[Gordon Raymond]

Hi subtle,
Is the rear axle a complete, 101 unit with an aftermarket LS center section, or have you used the 105 2 L center? I think I mentioned that Jack Beck converted mine and did a really wonderful job. Although a 105 rear axle can be made to fit, there are many problems, requiring serious fabrication on both the axle housing and chassis.
The 4:11 gears might be better served with the CR trans gearset. I have a 4:56 rear set with the GTA CR trans set, and 1st is still a little "tall" as compared with my earlier 5:12 unit. However the trade off is that the engine no longer runs 4200 RPM @ 60 MPH, as it did in it's racing days!
Best, Gordon Raymond

[Subtle]

Gordon

Thanks
Have obtained from Jason a good 4.1 assembly and have learned that Centerline either has or knows of a kit to install the whole axle.

If not, there is a speed shop here that can do most any machining or fabrication.

After the install, I'll try the standard tranny ratios--but first seems v. low.--even with the 1600.

What I need now is the make and size of an alternator that will fit onto the canted-over 2 L. Will get on to Pathung about this one, as you have suggested.

[Subtle]

Jay

The LSD is from an 84 Spider.

[Alfajay]

Subtle:

If you are using a late-model differential, will you run disk brakes all around, or somehow adapt drums to the '84 rear end? With the performance potential of your 2L, disks would be nice, but you'll need to either find a set of late-model 101 spindles/disks/calipers, or use the adapter sold by Centerline. Plus, you'll probably need a booster with disk brakes.

I put a Denso alternator on my Giulia. Got it from Racecar OE Supply (see item A790 at http://www.racecaroesupply.com/sande...cts.php?cat=64)

[Subtle]

Jay

Thanks for the alternater info. On the brakes--will be staying with the drums--love them. Even more so when the new linings are bedded in and the 3 - shoe fronts are properly adjusted.

[Alfajay]

Subtle:

Well, sticking with drums will keep things simpler. I am unsure what will be involved in mounting your Giulietta rear drums onto your '84 differential. Of course, all 750 - 115 Alfas used the same wheel bolt pattern, so the drums (and of course, wheels) should fit OK. But, how to adapt the drum backing plates to the flanges on the differential tubes? Does anyone know what is involved in this conversion?

I have never seen a car with front drums and rear disks, but suppose it might work - that is, you might start out by just keeping the ATE disks on the rear of your car, and see how it works.

[Subtle]

It's a Giulietta, so it came with drums--front and back. A p o installed the 3-leading shoe assembly.

I'm told that the kit needed is to attach the triangle to the diff and the trailing arms to the tubes. The splines are the same as on the 101, but the shaft and housing are stronger.

Bigger 2 L bearings will be needed at the outer ends--but hey--I'm the driver, not the wrench.

[Subtle]

For those considering installing a 2 L rear assembly--the kit to connect the diff to the triangle, which was available at Centerline is no longer offered.

Will have a speed shop here do it. In the meantime, I would like to use the older style cam cover nuts. Tne ones with the inset Allen socket thing.

Where can I get them?? Thanks,

[Subtle]

On one of the rare snowfalls in Vancouver.

[Subtle]

Jay

Bought a 45-amp NipponDenso ---thanks

[GTD]

Subtle

Quote:

In the meantime, I would like to use the older style cam cover nuts. The ones with the inset Allen socket thing. Where can I get them??