Alfa Romeo 4C Forums banner
1 - 15 of 15 Posts

· Registered
Joined
·
212 Posts
Discussion Starter · #1 · (Edited)
This BMW has 200HP at only 1,800 lbs. A 4C would need 37 more hp or to lose 330 lbs to have an equivalent P/W ratio.
I love how he drilled holes in various steel parts to reduce weight.
It’s amazing what people can do.
Anyone know what GMS’s fully CF 4C weighs? (Edit - I meant to say @scara73)

Ratios: (high is better)
0.096 4C Stock: 237hp / 2,465lbs
0.111 4C Comparable: 274hp / 2,465lbs
0.111 4C Comparable: 237hp / 2,135lbs
0.111 BMW CF 2002: 200hp / 1,800lbs
 

· Administrator
Joined
·
19,460 Posts
This BMW has 200HP at only 1,800 lbs. A 4C would need 37 more hp or to lose 330 lbs to have an equivalent P/W ratio.
I love how he drilled holes in various steel parts to reduce weight.
It’s amazing what people can do.
Anyone know what @GMS ’s fully CF 4C weighs?

Ratios: (high is better)
0.096 4C Stock: 237hp / 2,465lbs
0.111 4C Comparable: 274hp / 2,465lbs
0.111 4C Comparable: 237hp / 2,135lbs
0.111 BMW CF 2002: 200hp / 1,800lbs
Using the Euro 4C spec gets you there, stock.
 

· Premium Member
Joined
·
4,067 Posts
This BMW has 200HP at only 1,800 lbs. A 4C would need 37 more hp or to lose 330 lbs to have an equivalent P/W ratio.
I love how he drilled holes in various steel parts to reduce weight.
It’s amazing what people can do.
Anyone know what @GMS ’s fully CF 4C weighs?

Ratios: (high is better)
0.096 4C Stock: 237hp / 2,465lbs
0.111 4C Comparable: 274hp / 2,465lbs
0.111 4C Comparable: 237hp / 2,135lbs
0.111 BMW CF 2002: 200hp / 1,800lbs
That’s really cool. I love stuff like that. I’d love to own something like that or the Alfaholics car (similar concepts). I love older cars actually but I’m terrified to actually own and live with one.

BTW, I think you’re referencing the Scara car. He claims 765KG dry and 335hp (I have no reason to doubt his claims but I haven’t followed it much).
 

· Registered
Joined
·
1,134 Posts
This French surfer relocated to Cali is one cool dude, makes surfboards for a living and laying glass is just a more careful vacuum step than laying Carbon... Of course, this bmw is gonna be a wet noodle if a pothole makes the bump stops, if any, receive the kind of hits that an autoclaved and stress tested 4c chassis wouldn't even notice. Speed holes are cool and can be done well for great effect on these older cars, but there wasn't a lot of rigidity and robustness to begin with: which is why the 200hp is perfect and very happy to see there isn't an LS in there, or even an F20C as is popular for these types of builds.

This approach is basically the same as mine for the 4c, except I will have to go with a 3 pedal N/A swap because I just love it that way. So far, unfortunately, there's not much "speed holing" we can fo to the rear subframe, and the most one can do is cut away the whole rear crash extension and trunk brackets, which wouldn't weaken anything but also losing the trunk on a sealed front car is just too much. Keep in mind the McLaren F1 uses it's exhaust to form the rear crash structure and there was one that was rear ended which results in good occupant protection all the same... You can be functionally fixed but the best engineering makes hybrids of everything, why settle for single functions when the universe is an infinite lesson in multifunctional ecosystems... Also, if you make or spend time on anything, why ever hesitate to make it beautiful rather than just functional or "cost effective"? It's not a competition race car... KEEP IT SEXY NO MATTER THE COST!

When you look back at it, the horsepower it makes won't matter, but that perfect carbon piece or superclean aspect will.
 

· Super Moderator
4C SE, Giulietta Vel, 147, Sud, Guzzi 1100 Sport, Guzzi Le Mans MkV
Joined
·
13,569 Posts
This BMW has 200HP at only 1,800 lbs. A 4C would need 37 more hp or to lose 330 lbs to have an equivalent P/W ratio.
I love how he drilled holes in various steel parts to reduce weight.
It’s amazing what people can do.
Anyone know what @GMS ’s fully CF 4C weighs?

Ratios: (high is better)
0.096 4C Stock: 237hp / 2,465lbs
0.111 4C Comparable: 274hp / 2,465lbs
0.111 4C Comparable: 237hp / 2,135lbs
0.111 BMW CF 2002: 200hp / 1,800lbs
A full cf 4C has been built by Enri @scara73 . He’ll know.
 

· Registered
Joined
·
122 Posts
I recently sold my 64 Alfa 2600 spider by Touring. This had holes punched out throughout the chassis. Not sure what the overall weight of the car was, probably around 1300kg. But with 145bhp from its inline 6 and triple Solex carbs it kept up very well with modern cars and certainly surprised quite a few that thought they could pick on the old girl :ROFLMAO:
Motor vehicle Bumper Automotive exterior Automotive tire Gas
Brown Building Wood Beam Wood stain
 

· Registered
Joined
·
93 Posts
This BMW has 200HP at only 1,800 lbs. A 4C would need 37 more hp or to lose 330 lbs to have an equivalent P/W ratio.
I love how he drilled holes in various steel parts to reduce weight.
It’s amazing what people can do.
Anyone know what GMS’s fully CF 4C weighs? (Edit - I meant to say @scara73)

Ratios: (high is better)
0.096 4C Stock: 237hp / 2,465lbs
0.111 4C Comparable: 274hp / 2,465lbs
0.111 4C Comparable: 237hp / 2,135lbs
0.111 BMW CF 2002: 200hp / 1,800lbs
My Mum had a new 2002 in 1974 I used it after a few years actually a brilliant car to drive at the time
very fast
 

· Registered
Joined
·
93 Posts
This BMW has 200HP at only 1,800 lbs. A 4C would need 37 more hp or to lose 330 lbs to have an equivalent P/W ratio.
I love how he drilled holes in various steel parts to reduce weight.
It’s amazing what people can do.
Anyone know what GMS’s fully CF 4C weighs? (Edit - I meant to say @scara73)

Ratios: (high is better)
0.096 4C Stock: 237hp / 2,465lbs
0.111 4C Comparable: 274hp / 2,465lbs
0.111 4C Comparable: 237hp / 2,135lbs
0.111 BMW CF 2002: 200hp / 1,800lbs
I heard of a Chinese owner of an Alfa 1750GTV changing all metal screws springs etc for a Magnesium (I think) he already did the Ferrari thing .
 

· Premium Member
Joined
·
4,067 Posts
I heard of a Chinese owner of an Alfa 1750GTV changing all metal screws springs etc for a Magnesium (I think) he already did the Ferrari thing .
Titanium? I’ve seen Lotus people do that. It’s an obsession that usually takes months/years to source every fastener in Titanium (not that I’ve thought about it 😂).
 

· Registered
Joined
·
697 Posts
Titanium? I’ve seen Lotus people do that. It’s an obsession that usually takes months/years to source every fastener in Titanium (not that I’ve thought about it 😂).
Titanium exhausts are popular with Lotus owners. Industrial velcro is used throughout the Lotus interior.
 
1 - 15 of 15 Posts
Top