360 Converting a 360 Challenge to Street Spec

Hear me out...

I could try to go down the Trev route and mod/hot rod my 360 Modena but in 2025 nearly every part is NLA and almost impossible to find. It would also cost an arm and a leg.

OR...

I can purchase a very sweet Challenge car that recently popped up that has everything I want and is owned by a collector that restored it.

So, what challenges (pun intended) will I have going into this?

Open questions I have are:

1. Can the suspension accommodate being raised to CS height without messing up the geometry and risking bump steer?
2. I read somewhere the uprights are the same and I can swap for Modena uprights to get the parking brake working, does that sound right?
3. Can I get this to work with 91 pump gas?
4. What does one need to do to allow the pump nozzle to work with the dry breaks?
5. Can I fully remove the cage or just leave the rear hoop? Obviously there would be a gap in the dash but not horribly keen on running a cage on the street. Door impact is a concern but I'll figure out something for that.
6. How difficult would it be to add a heat exchanger to speed up warming engine/gearbox?
7. To take this to an absurd level, if I have stock cats and a title from another state, could I go through the G&K process and get this registered in CA? No SAI or EGR would be the only thing that I could think of that would be a problem.
8. What do I do about lack of keys/locking the car?

Other thoughts:

• To my understanding, there's ways to get this titled in certain states (e.g. Dirt Legal). Let me know if that is going to be more difficult than they make it sound.
• The car has motons so I'd want to get those revalved and replace the springs
• I have two 360s to borrow parts from to make the above happen so I can swap as many parts as needed to get it through compliance processes
• I expect this won't be cheap and there's more sensible things to do with my money BUT...I like having unique things even if they make zero sense. This will likely be a lot cheaper than the air cooled, hot rodded minimalist Porsche I tried to buy today on BAT.

 

I’ve been wanting to do this for years.

the big hurdle may be registering it for street use with the challenge vin

I was going to buy a wrecked Modena for that purpose and make a super lightweight outlaw street challenge car.

gl!

 

Trev is not the only Hot rod around here. And many of those parts you can source through eurospares or ebay. Everything you asking can be done. But allmost going backwards to make a challenge less challenge. Should just make your car your car and have fun. That is what I did with mine

 

All of those items are more secondary than actually getting it registered and legal. Pretty sure on a federal level they will never be legal on the street (without the appropriate approved VIN) even if you get it registered in your state (some states are much easier, some will never allow it). So it's a risk you have to be willing to take.

Good luck with it!

 

Hmm, that's a good point. In researching a little further, it looks like it wouldn't be compliant with EPA and DOT requirements. So, if one were to do this, you'd be better off importing under the 25 year exemption rule?

 

I would think the only practical way to make it legal is to bolt all the challenge car parts onto a street-legal 360 chassis with a valid VIN.

 

I love the idea of this, but ohhhh man, it sounds awfully complicated, and nearly all of those questions are above my pay grade. But I really want to follow where you go with this!

My first thought is to NOT register it in California.

 

Good luck getting it registered, however with a dealer plate, you can pretty much do whatever.

 

Maybe plan B makes more sense and buying this abomination to get the Michelotto parts and transfer them onto mine:

https://bringatrailer.com/listing/2003-ferrari-360-gt-michelotto/