Search found 551 matches

by Duk
Sun Feb 16, 2025 6:34 pm
Forum: Race Cars and Track preparation
Topic: "Patches" MD's Final Racing Project
Replies: 131
Views: 65006

Re: "Patches" MD's Final Racing Project

Some more thought on this blatantly hijacked thread. Fabricating the rear half of a transaxle case would be a bit of a challenge to get right. Having this part CNC machined from a solid block of steel would be doable, but probably not really cost efficient. So how about having it 3D printed in somet...
by Duk
Tue Jan 14, 2025 8:56 pm
Forum: Race Cars and Track preparation
Topic: "Patches" MD's Final Racing Project
Replies: 131
Views: 65006

Re: "Patches" MD's Final Racing Project

Even though MD is a splitter and abandoned us, I was having a think about TA breakages, especially as they are almost always the ring gear and pinion. Now I am making a guess here about the distance from the main bearing plate and the centre of the diff housing, but I'll just use an arbitrary 300mm....
by Duk
Fri Jan 03, 2025 3:55 pm
Forum: Projects & restoration
Topic: Where have all the projects gone???
Replies: 25
Views: 14635

Re: Where have all the projects gone???

Good to see you back on here Remco.

It'd be great to see more life/life returning to forums. They're much easier to search than social media platforms.
And build threads and 'How To's' are a thing that is sorely missed.
by Duk
Wed Jan 01, 2025 3:45 pm
Forum: Site Administration & announcements
Topic: **** 2025 FUNDRAISING ****
Replies: 5
Views: 3776

Re: **** 2025 FUNDRAISING ****

Thanks Z-man.
I've emailed you.

Much appreciation to you and Michael for keeping this essential forum alive.
by Duk
Mon Nov 18, 2024 7:03 pm
Forum: Projects & restoration
Topic: Where have all the projects gone???
Replies: 25
Views: 14635

Re: Where have all the projects gone???

It's quiet.

Too quiet................
by Duk
Thu Mar 28, 2024 3:09 pm
Forum: Race Cars and Track preparation
Topic: Adrian’s lightweight Giant Killer 2.0
Replies: 10
Views: 3630

Re: Adrian’s lightweight Giant Killer 2.0

820Kg's??? :shock:
That's INCREDIBLY light for a steel body car that isn't the size of a shoe.
Need some pics.

See the Alfaholics have made a carbon fibre body for the 105 GT Junior.
by Duk
Thu Mar 28, 2024 2:57 pm
Forum: Performance
Topic: V6 12v Individual Throttle Body
Replies: 18
Views: 18703

Re: V6 12v Individual Throttle Body

How's your 3D printing game, Z-man?
Design and print a decent plenum chamber in nylon. Just make sure there aren't any large flat surfaces.
It might look a bit like a dogs breakfast, but you don't look at the plenum when you're driving the car.
by Duk
Mon Mar 25, 2024 2:17 pm
Forum: Race Cars and Track preparation
Topic: "Patches" MD's Final Racing Project
Replies: 131
Views: 65006

Re: "Patches" MD's Final Racing Project

MD, I think there also needs to be emphasis on a pumped oil supply for the ring and pinion gears, rather than relying on conventional splash/carry lubrication.
Same thing for the main output shaft bearing that wears the thrust load from the pinion gear.
by Duk
Wed Mar 20, 2024 5:27 pm
Forum: Race Cars and Track preparation
Topic: "Patches" MD's Final Racing Project
Replies: 131
Views: 65006

Re: "Patches" MD's Final Racing Project

Structurally reinforcing the transaxle to keep clearances correct, does sound like 1 of the most important thing that can be done. Making the main bearing plate from a block of alloy steel like 4140, me thinks, would be a very good idea. Having a pumped oil supply with, at a minimum, a feed line for...
by Duk
Wed Jul 12, 2023 7:31 pm
Forum: Fuel, Electrical & ignition (stock Bosch)
Topic: Driveshaft driven Alternator
Replies: 4
Views: 3180

Re: Driveshaft driven Alternator

I've thought about it. And had similar ideas about putting the starter motor down there, too. But it doesn't look like there's enough space down there for it, without doing some pretty nasty modifications to the body/floor. It would be pretty cool if magnets could be embedded into the clutch flywhee...
by Duk
Mon Sep 14, 2020 6:09 pm
Forum: Introduce yourself - Gallery
Topic: Steve's 3.0 24v supercharged GTV
Replies: 38
Views: 36369

Re: Steve's 3.0 24v supercharged GTV

Zamani,

I reckon I found that picture on Mendes website for IMSA Alfa parts. It's been in the Alfa pics folder a long.
by Duk
Thu Aug 27, 2020 7:21 pm
Forum: Introduce yourself - Gallery
Topic: Steve's 3.0 24v supercharged GTV
Replies: 38
Views: 36369

Re: Steve's 3.0 24v supercharged GTV

Dropped spindles would certainly improve geometry and travel too ! I do have two sets of front spindles & hubs, but I've never felt brave enough to trust them being cut up and re-welded to give the necessary extended lower section. Perhaps instead of drop spindles, look at doing an upside down ...
by Duk
Mon Jul 06, 2020 3:51 pm
Forum: Suspension, Steering, Wheels, Tires
Topic: SZ/RZ rear suspension mounts
Replies: 6
Views: 5744

Re: SZ/RZ rear suspension mounts

A good picture.
by Duk
Mon Apr 20, 2020 5:14 pm
Forum: Engine
Topic: 24v swap missing info
Replies: 2
Views: 4283

Re: 24v swap missing info

With regards to inlet manifold design, I'd suggest that you look at very capable normally aspirated engines. Notably the Ferrari 458 and the 991 chassis Porsche 911 GT3. Both make about 125hp/litre and the Ferrari engine achieves a BMEP number of 15+. Importantly, neither of them use ITBs. If you co...