Tarmac Rally Stratos Build begins

[rutthenut]

Looks great Colin, nice to see a Stradale-bodied car in action for a change

I know you've got some decent dampers on there, but what spring rates did you go for on front and rear, car looks well balanced?

[ByrneEngineering]

Thanks guys
Yea the car handles very well straight out of the box, running
325lbs front
250lbs rear
I was aiming for a ride frequency of around 2, but I think the car may be a little lighter than I’d estimated, unfortunately due to a comedy of errors I still haven’t had a change to get it onto some corner weights.
As you can see from the vidoes, the car has epic turn in, which is great, but a little hard to read, I’d like to try dropping the front roll centre a little, from my calcs I think I can drop it down by 60mm without going below the ground, I think this would slow the front down a little and give better feedback
Conversely, I’d like to try and raise the rear roll center to limit its ability to drop below the ground level, It’s very tricky to control the roll centre migration on a McPherson strut, but raising the roll center may make the rear harder to read, just something to try
The Balance is good at the moment, so I think my ARB calcs we’re pretty close, if/when I make changes to the roll centres I’ll have to compensate with new ARB’s, that is if we ever get to do another tarmac rally in Australia……..

[rutthenut]

that is if we ever get to do another tarmac rally in Australia……..

Do hope so.
Unfortunate outcome on Targa shouldn't prevent future events, perhaps just with more controls to limit speed, increase safety, somehow.

[ChrisCar6]

Did the chin spoiler survive the event?
What tyres did you use?

[ByrneEngineering]

Yea chin spoiler survived no problem, couple of scrapes, but it was always going to be a bit of a consumable.

We are running 205/55 R16 Dunlop DZO3G softs and have a 215/50 R16 mediums for the rear for longer stages
Awsome tyres

[ByrneEngineering]

Bit of an upgrade video on the individual throttle bodies, hopefully more videos to follow

https://youtu.be/NOcr2Ca2pQE

[Stableblock]

Thanks Colin, another interesting video. have you changed your safety beer?