Atom 4 - Spec and Discussion

Feel free to talk about all things Atom in this board.
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wasp
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Re: Atom 4

Post by wasp » Fri Jul 05, 2019 8:15 am

Interesting to see the Carbon discs. Braking has always been epic in an Atom, so I wonder how these compare to the AP 2 piece jobbies?

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Stu

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speedmachine
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Re: Atom 4

Post by speedmachine » Fri Jul 05, 2019 8:24 am

What is this colour chassis called?

phil4

Re: Atom 4

Post by phil4 » Fri Jul 05, 2019 8:27 am

speedmachine wrote: Fri Jul 05, 2019 8:24 am What is this colour chassis called?
battleship grey ;)

Tompy
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Re: Atom 4

Post by Tompy » Fri Jul 05, 2019 8:33 am

I think it is the titanium color frame

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Peter255
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Re: Atom 4

Post by Peter255 » Fri Jul 05, 2019 8:34 am

phil4 wrote: Fri Jul 05, 2019 8:05 am
Only pricey if you went with the video overlay showing brake pressure etc. Otherwise similar price to the reversing camera, I think.
Just had a look and your right mate! Reversing cam and timing are not too bad. Its the brake pressure on the video that is the big cost.

My logic is as its electrical stuff it could be added later without too much issue, plus its not going to help me go faster or enjoy the road. It can wait. ;)

There are also some quite effective track day lap timing apps for smart phones these days. I have used them in the past. :)
Atom 4, Clio v6, & some other cars obviously.

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Peter255
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Re: Atom 4

Post by Peter255 » Fri Jul 05, 2019 8:37 am

phil4 wrote: Fri Jul 05, 2019 8:27 am
battleship grey ;)
No Phil. Its called "unfinished" / "undercoat"! :P
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markwetherall
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Re: Atom 4

Post by markwetherall » Fri Jul 05, 2019 9:25 am

Peter255 wrote: Fri Jul 05, 2019 8:34 am
phil4 wrote: Fri Jul 05, 2019 8:05 am
Only pricey if you went with the video overlay showing brake pressure etc. Otherwise similar price to the reversing camera, I think.
Just had a look and your right mate! Reversing cam and timing are not too bad. Its the brake pressure on the video that is the big cost.

My logic is as its electrical stuff it could be added later without too much issue, plus its not going to help me go faster or enjoy the road. It can wait. ;)

There are also some quite effective track day lap timing apps for smart phones these days. I have used them in the past. :)
And there was me thinking you were not allowed to time your laps on a track day. It invalidates insurance and track days are supposed to be fun, not a race ;)

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Peter255
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Re: Atom 4

Post by Peter255 » Fri Jul 05, 2019 12:16 pm

markwetherall wrote: Fri Jul 05, 2019 9:25 am
And there was me thinking you were not allowed to time your laps on a track day. It invalidates insurance and track days are supposed to be fun, not a race ;)
You are correct Mark. I am not bothered about lap times, its not the point. I have tested a couple of track performance apps tho. Quite interesting the data you can get. :tu:
Atom 4, Clio v6, & some other cars obviously.

robfitz
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Re: Atom 4

Post by robfitz » Fri Jul 05, 2019 5:27 pm

The yellow and grey car in the Goodwood pics looks pretty good. Looking forward to seeing more variations.

Is that the 350 demo car?
GR Yaris CP for when it rains, Atom 4 for when it doesn’t.

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Re: Atom 4

Post by Peter255 » Fri Jul 05, 2019 5:44 pm

robfitz wrote:The yellow and grey car in the Goodwood pics looks pretty good. Looking forward to seeing more variations.

Is that the 350 demo car?
Think so. Colors match with the spec I read at the factory ages a go.

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Last edited by Peter255 on Fri Jul 05, 2019 6:53 pm, edited 1 time in total.
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Hedge
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Re: Atom 4

Post by Hedge » Fri Jul 05, 2019 6:07 pm

Yes it’s Ariel’s car.

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Hedge

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Curves Junkie
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Re: Atom 4

Post by Curves Junkie » Fri Jul 05, 2019 6:14 pm

ooinaru wrote: Fri Jul 05, 2019 6:08 am Some pictures found here:

And in case you fancy some carbon ceramics on your Atom:
Thx for sharing the pics.

When I'm looking at the new nose cone, I wonder how the engine should stay to be cool.
Even today it's difficult to keep the temperature in the right range with a lot of tricks and modifications.

About the carbon-ceramic brake disk.
Keep in mind, if you have a ride of the track into the gravel bed your carbon-ceramic brake disk are ready for the garbage bin, if the disk has the slightest damage. The same if the road have a lot of splits stones on top - like the French guys like to repair their roads in this way.
They only function properly when they are really hot - but then brutally. The dosing capability is not as good as with steel discs.
Your wheel rims will be always clean.

phil4

Re: Atom 4

Post by phil4 » Fri Jul 05, 2019 6:35 pm

Curves Junkie wrote: Fri Jul 05, 2019 6:14 pm When I'm looking at the new nose cone, I wonder how the engine should stay to be cool.
Even today it's difficult to keep the temperature in the right range with a lot of tricks and modifications.
I suspect it's drawing the air in head on, like the Nomad does... instead of the side channels. Will it be enough? I suspect so.

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Re: Atom 4

Post by Hedge » Fri Jul 05, 2019 7:08 pm

There’s a firm at the FOS flogging ceramics for the A4 (they have a demo with them on). I think they’re called Midland or summat?

Anyway I think the dude said they save 2.9kg in unsprung weight. Didn’t ask about cost.

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Hedge

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Curves Junkie
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Re: Atom 4

Post by Curves Junkie » Fri Jul 05, 2019 7:29 pm

phil4 wrote: Fri Jul 05, 2019 6:35 pm I suspect it's drawing the air in head on, like the Nomad does... instead of the side channels. Will it be enough? I suspect so.
Do you talk about that?
.
nomadJump.jpg
nomadJump.jpg (129.26 KiB) Viewed 361 times
.
If so, look that little "window" at the AA4:
.
intro-image4.jpg
intro-image4.jpg (424.43 KiB) Viewed 361 times
.
I drive a AA3 and in the past at serien trim the temperatur rise up to 104°C when fast driving up a alpine pass or driving in summer through a city. After modifications at the nose cone and built-in a oilcooler the temperatur limit is now 95°C. BUT my "window" is much, much bigger as the AA4 is.

I'm afraid it won't be enough.

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