Lotus Elan

Been to Bilster Berg and Spa

PostPost by: Vali » Tue Aug 02, 2022 7:48 pm

Hello,

for the first time I have been on track with my built Elan which I bought as a project race car from Dave here.

First I have been last Saturday at Bilster Berg in Germany, a "race track" which goes up and down.
It was the first rollout for me on track and tried out the car a little bit.
I discovered soon there is lot more setup work to do on the car.
And I don´t like the brake feel or brake pedal travel right now. Personally I would like to have a longer pedal travel to regulate applying brake force better. Now it feels like there´s only 2cm Pedal travel until locking the wheels.
https://youtu.be/hHFMbziudGU

After tweaking the setup for hopefully better handling of the car on Sunday I have been to Spa in Belgium on Monday. Handling feels better for me but still not satisfied. Especially on high speed cornes there´s a tendency to oversteer easily.
https://youtu.be/2_MjttBgSI8

Kind regards from Germany,
Valentin
Attachments
297461397_5427994053980468_8338767399070100588_n.jpg and
Spa - Eau Rouge/Raidilon
296170380_5421776367935570_4159528875453886333_n.jpg and
Bilster Berg - Corner section "Mausefalle - Mousetrap"
Vali
Second Gear
Second Gear
 
Posts: 60
Joined: 14 Sep 2016
Location: Germany

PostPost by: 661 » Wed Aug 03, 2022 11:43 am

The Mousetrap at Bilster Berg is like nothing else I have ever driven. Quite wonderful.
Graeme
S4 SE
S2 GTS
Caterham 420R
Sold - Peterson JPS Exige
User avatar
661
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 1167
Joined: 29 Mar 2012
Location: East Sussex

PostPost by: rgh0 » Wed Aug 03, 2022 11:55 am

Do you have standard unboosted brakes ? what pads are you using ?

From the pictures it looks like the rear springs and aeons are a little soft and the car is sitting down more than it should on the rear outside corner. Elans with their narrow track are not the best cars on fast sweeping corners especially with the driver on the outside as the weight transfer is significant but the over steer can be largely dialed out in most circumstances

cheers
Rohan
User avatar
rgh0
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 8326
Joined: 22 Sep 2003
Location: Melbourne, Australia

PostPost by: 661 » Wed Aug 03, 2022 12:11 pm

rgh0 wrote:Do you have standard unboosted brakes ? what pads are you using ?

From the pictures it looks like the rear springs and aeons are a little soft and the car is sitting down more than it should on the rear outside corner. Elans with their narrow track are not the best cars on fast sweeping corners especially with the driver on the outside as the weight transfer is significant but the over steer can be largely dialed out in most circumstances

cheers
Rohan

He's balanced that with the asymmetrical white stripe
Graeme
S4 SE
S2 GTS
Caterham 420R
Sold - Peterson JPS Exige
User avatar
661
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 1167
Joined: 29 Mar 2012
Location: East Sussex

PostPost by: Vali » Wed Aug 03, 2022 4:39 pm

rgh0 wrote:Do you have standard unboosted brakes ? what pads are you using ?

From the pictures it looks like the rear springs and aeons are a little soft and the car is sitting down more than it should on the rear outside corner. Elans with their narrow track are not the best cars on fast sweeping corners especially with the driver on the outside as the weight transfer is significant but the over steer can be largely dialed out in most circumstances

cheers
Rohan


Hi Rohan,

No boost on the brakes. Pads are CL5+. Front master cylinder 0.625" and rear master cylinder 0.875".
The rear springs are 180 lbs (front 325 lbs) and no aeons.
Only the yellow bump stops from TTR which has been supplied together with their Koni dampers.
And a rear antiroll bar is fitted.



661 wrote:He's balanced that with the asymmetrical white stripe

:lol: :lol: :lol:
Vali
Second Gear
Second Gear
 
Posts: 60
Joined: 14 Sep 2016
Location: Germany

PostPost by: rgh0 » Wed Aug 03, 2022 8:58 pm

I all sounds like a fairly standard TTR style setup.

For the braking with dual master cylinders and balance bar would perhaps look at smaller master cylinders and try different pads until you get the travel and modulation you like

For the rear oversteer, without the Aeons you need a stiff rear suspension and / or roll bar to stop the car sitting down on the outside rear. and you appear to have this already so I am not sure what's going on. I run a very different style spring setup so cant really advise but lots of people run this style TTR setup so perhaps they can help more.

cheers
Rohan
User avatar
rgh0
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 8326
Joined: 22 Sep 2003
Location: Melbourne, Australia

PostPost by: Vali » Thu Aug 04, 2022 9:21 am

I think most of the oversteering comes from the A052 tyres which I did not really got hot enough.
If I touched the tyres after a session they were not that hot I use to know from the Lotus Elise or Lotus Evora.
Vali
Second Gear
Second Gear
 
Posts: 60
Joined: 14 Sep 2016
Location: Germany

PostPost by: rgh0 » Thu Aug 04, 2022 10:41 am

I currently run Yoko A050 175/60 x 13 and yes you need to get the rears hot enough as they tend to run cooler but a bit of work should get them hot and matching matching the fronts for grip. I find I need more steering correction on the first laps to counteract the rear oversteer until the get up to temperature to match the fronts that heat up quicker .
Look at the tread surface of the fronts versus the rears and and the pressure rise and they will be similar if reaching the same temperatures and loads

cheers
Rohan
User avatar
rgh0
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 8326
Joined: 22 Sep 2003
Location: Melbourne, Australia

Total Online:

Users browsing this forum: No registered users and 1 guest