456/550 engine with early Weber’s

Not a Ferrari v12 but I saw a youtube video of a guy who did it to a BMW 750IL v12, it was a really cool project.

There are a few people on youtube who have done this.

 

Mattie are you building the bread wagon 250 on the 550 chassis? Someone on here built an intake manifold with individual throttle bodies. Looked similar to what you are mentioning.

 

These guys used a 456 engine in a TR250 'representation'. They left it injected, but disguised the injection to (sort of) look like carbs. Amazing workmanship.
1959 TR 250 Representation | Autorestorations or https://autorestorations.co.nz/project/ferrari-testa-rossa-representation/

Cheers, Phil

 

I realize you're going with a Ferrari v12 but making the intake runners and the other processes will be the same, look at his other videos of how he made it.

 

Jenvey make an ITB kit, they look like Webers but still retain the electronic fuel injection.

https://store.jenvey.co.uk/ferrari-575-v12-sf-kit-ckfr01-kit

 

Bas- Those would look great under his hood. I was trying to remember where I had seen them.

 

Geeze, you’re crazier than a loon. I love it.


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I remember 'harmonyautosport'' on here (I think it was them) developed a kit years ago but never did anything beyond their development vehicle. I got some pics here:

 

That would be perfect with 6-1 headers.
Oh what a sound would this have !!!


Daniel

 

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250 GTO Replica / 575 Engine / Jenvey Throttle bodies = More horsepower and lots of fun!

What's not to like?



Regards

WM

 

The intake noise itself would be insane...!

When this video launched I watched it twice in the same day

 

If you do go the weber carb route you'll more than likely have to ditch Ferraris ECU/Ignition and replace it with this: http://megasquirt.info/products/

 

The yellow 575 GTO Special is my car and we ( https://www.project-heaven.com/ ) could supply a tailor made ECU for this engine at £800 (GBP) per unit if anybody wants one. It would still need setting up on the dyno
The GTO still has the DTA unit we fitted from the start and it works well, but we've now done quite few conversions on various cars including Maserati 3500GTI, E-Types and 6 & 8 cyl Jag saloons, Volvo 1800ES, and our own ECUs are considerably more refined now.

As far as exhaust note goes (its 6:2:1) it depends entirely on the silencing. I blew out most of the packing once while testing at Mallory Park and on the drive home without earplugs I actually found the cockpit noise too painful to bear between 6 and 8000 rpm. With the packing replaced it's just right.
Interestingly the intake sound was far better when we had the original tuned 365 4 cam engine on 45 DCOE (sidedraught) Webers. It really did make the hairs stand up on the back of your head when it came on cam at about 5500/6000. It's difficult to know how much of that was the positioning of the intakes and how much the difference between throttle bodies and carbs.