Colin Wood
Colin Wood Associate Editor
4/12/23 12:10 p.m.
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In case the heavily modified sheet metal didn’t give it away, Robbie Cutcliffe’s Datsun Roadster is about as far away as you can get from stock. The Datsun body is perched on top of a Formula 440 chassis–rubber-puck suspension, Honda CBR600 sportbike power and all.

The last time …

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Tom1200
Tom1200 UberDork
4/12/23 12:59 p.m.

I toy with the idea of putting a Fiat 850 body on my F500 so I can run it at any track day I please.

Robbie (Forum Supporter)
Robbie (Forum Supporter) MegaDork
4/12/23 9:36 p.m.
Tom1200 said:

I toy with the idea of putting a Fiat 850 body on my F500 so I can run it at any track day I please.

Oh man this is a really bad good idea. Or a really good bad idea.

Not sure I can tell the difference anymore.

Tom1200
Tom1200 UberDork
4/12/23 11:54 p.m.

In reply to Robbie (Forum Supporter) :

Finding one with rusty floors wouldn't be hard and the body dimensions are nearly identical. 

If I kept the street gear there's no way my local SCCA track days could turn me away.

People in various Porsches & Vettes would be devastated.

triumph7
triumph7 HalfDork
4/13/23 11:47 a.m.

In reply to Tom1200 :

Maybe not.  I talked to Robbie a while back and remember he was having issues with the suspension because of the increased weight.

Robbie (Forum Supporter)
Robbie (Forum Supporter) MegaDork
4/13/23 2:51 p.m.
triumph7 said:

In reply to Tom1200 :

Maybe not.  I talked to Robbie a while back and remember he was having issues with the suspension because of the increased weight.

Yes, I don't think the weight of a body helps. However, I didn't exactly start with a sorted chassis, so it's hard to say how much of the problem was from the body and how much was from very poor rear subframe modifications, old rubber pucks, significant wheelbase change with no akerman correction, bad alignment, etc.

This year, the car should have motorcycle coilovers at all 4 corners with improved geometry as well!

nocones
nocones PowerDork
4/13/23 3:09 p.m.

In reply to Robbie (Forum Supporter) :

To be fair it either WILL have MC shocks at all 4 corners or it won't be there.   There is no going back.

Tom1200
Tom1200 UberDork
4/13/23 4:09 p.m.
triumph7 said:

In reply to Tom1200 :

Maybe not.  I talked to Robbie a while back and remember he was having issues with the suspension because of the increased weight.

Fiat panels are thin so an outer shell is only going to add 100lbs (based on 22swg steel and sq footage). Also a CBR600 motor is 50lbs heavier than a snowmobile engine.

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