New Rear Swaybar - Testing Underway - LotusTalk - The Lotus Cars Community
 
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post #1 of 2 (permalink) Old 08-21-2017, 07:21 AM Thread Starter
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New Rear Swaybar - Testing Underway

We are testing a new rear swaybar for the 111 platform. As most of you know, these cars lack a rear swaybar. As a result, we have used heavier springs to reduce the amount of roll or sway the car experiences during heavy cornering. Most of us tend to like the flatter handling delivered by using heavier springs. The downside is that compliance/grip in rough roads/canyons/tracks is compromised.

We are running a new rear swaybar and larger than stock front swaybar on our '05 Elise with Nitron Singles and our medium springs (450/600). I have been testing in our local canyons. The car is very flat and I have been able to run the Nitrons at much softer settings than normal. The car is absorbing the bumps nicely and tracks through rough corners without getting upset. Our next step is to test much softer springs. I have a client's Elise here with the same Nitron set-up and the difference is clear. We also have a Sport Pack Elise and the difference compared to our Elise is night and day.

The only couple of downsides, so far, is a few more rattles and a less 'tossable -feel'. We need to investigate further as I'm not sure if the added noise is from the swaybar alone. The car feels very stable through sweepers - especially at high speed but feels less tossable at lower speeds. Steering effort is increased at low speeds but not so much that it would be a problem.

My ultimate goal is to create a car that glides over the bumps with confidence inspiring grip, feel and control. So far, so good.

We will have the car at the upcoming West Coast Lotus Meet for anyone that wants to drive it. Any local Lotus owners that want to test it out, come down with your car and we can drive both cars side by side to really see the difference.
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post #2 of 2 (permalink) Old 12-19-2017, 12:56 PM Thread Starter
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We have just wrapped up our testing on the swaybars. Road testing was completed and then we headed to the track. Our Ride & Handling Engineer, David Thilenius spent a couple of days with us to develop the road set-up. We will get him out on track soon to fine tune the track settings we developed. We have two settings that we are very happy with, one for Road and one for Track. We are now running 250lb front/350lb rear springs, down from the 450/600! The car turns in nice and flat with excellent grip and compliance.

In fact our track settings even impressed a long-time Elise owner with Ohlins TTX. Watch his testimonial: HERE

The performance was good enough to get us to move forward on securing production parts from our partner. We should have parts by the end of the year or early Jan. These are direct bolt-in - though the rear swaybar requires one hole to be drilled into the gusset of the lower stock wishbone.

Yes, some of the wishbones are different in the pictures - we still have more testing to do but they deliver more negative camber than anyone will ever need - including "Stance Nation".
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Email or call (951)296-6762 us for advice. We will respond!
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