Post by jamieandthemagictorch on Aug 14, 2017 20:52:06 GMT
Well she went back with bigger jets, they were a bit too big, so carbs off whilst we were there to make them a little smaller. Fitted the Bluetooth 123 electronic dizzy and played around with the advance curve.
Got 125bhp from the lil 1300, but the dizzy has made the starting, idle, and driveability on big carbs soooo much better.
Post by jamieandthemagictorch on Feb 26, 2017 19:00:16 GMT
following a long full rebuild, it's finally ready for its bench test before going back in the car
Race head, with titanium BMW 318 valves Ported, polished, new stem seals and valves Skimmed and compression To 10:1 New Pistons and liners, with larger pockets machined into pistons Big and little ends Crank profiled and polished and balanced Flywheel lightened 10541 cam on Inlet side 90degree ram pipes, with large chokes and longer intake tract
Post by jamieandthemagictorch on Jan 16, 2017 21:49:36 GMT
If you can make sense of the below well done. I put this together to determine what route I needed to go down. The VW shim plus smallest Alfa shim was way too big. As stated at the beginning biggest Alfa shim wasn't big enough. I knew my valve to cam clearance was bigger than 5.22 but less than 7.40mm.
So after buying a 3.250 and 3.500 shim I managed to ascertain I needed CatCams C007 bucket, which has a slightly thicker bucket depth of 3.9mm vs the standard buckets 3.225mm.
So these buckets are on order and combined with the 2.675 to 3.225mm shims will see me putting this problem to bed.
I've attached the spreadsheet for other members future headache removal, so they can refer to this and work out what solution they can work....... whilst maintaining the standard alfa shim range....... or change vales to another car.
Post by jamieandthemagictorch on Jan 2, 2017 18:53:02 GMT
Building a hot head for my 1971 Alfa giulia.
But I have a problem that might be solved by Subaru valve buckets........ the BMW valves I have in, have a larger shim gap.
The shim range by Alfa is not big enough for what I'm doing. but Subaru buckets are thicker and also available with inbuilt shims.
I've heard that Subaru cam buckets (both the type with and without shims) will fit.
IF ANYONE HERE HAS SOME VALVE BUCKETS THEY CAN MEASURE FOR ME ? I'm after the internal diameter (hoping for 33mm) and the external diameter (hoping for 35mm). I understand that they are about 24mm tall (Alfa ones are 25mm).
That looks super clean, goood luck with the engine rebuild, is it a 1.6? I really like the stance too, its just a bit tricky since the sump is so close to the ground even at stock height! I don't have an engine yet but I have some leads about a local one.
It's a 1300, but with the work I'm doing, hoping for 130bhp, so more torque and some silly revs. Easy route would have been a bigger engine swap. But the oversquare 1300 is a revvy sweet gem. And not enough 1300s about.
Stance wise, I'd like the back an inch lower, but your right about the front. Although it's always the front silencer that scrapes, not the sump.