Torque steer - LotusTalk - The Lotus Cars Community
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post #1 of 7 (permalink) Old 11-13-2017, 10:55 AM Thread Starter
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Torque steer

Recently i noticed that my Elise pulls to the left during acceleration and to the right on engine braking. Normal braking has no influence. I need to mention that due to the electric conversion the cars has somewhat more torque than normal. I checked tire pressure and profile. Any ideas where to start.
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post #2 of 7 (permalink) Old 11-13-2017, 11:14 AM
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I had the same problem and found that it is related to front toe out. So, check your toe out. The more that you have, the more that you will feel this.

Good luck,
Eldon
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post #3 of 7 (permalink) Old 11-13-2017, 11:16 AM
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^That sounds reasonable. Good to know.

A minor point but it sounds more like a torque reaction to a spinning mass in the car, not torque steer. Akin to the torque reaction of a BMW twin? As I understand the term torque steer, a front wheel drive car can/will exhibit it but it doesn't come into play in RWD.

Lew
'17 Evora 400 MT

Last edited by lotusquacious; 11-13-2017 at 11:28 AM.
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post #4 of 7 (permalink) Old 11-13-2017, 11:20 AM
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Sounds like an interesting car, maybe some pictures of the electric conversion install would help people spot potential causes of the symptom. Or at least, it would be cool to see what you've done!

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Originally Posted by lotusquacious View Post
A minor point but it sounds like a torque reaction to a spinning mass in the car, not torque steer. As I understand the term torque steer a front wheel drive car will exhibit torque steer but it doesn't come into play in a RWD car.
You're correct but note OP is from the Netherlands and possibly not a native English speaker.

I have sometimes had limited slip diffs move torque around on RWD cars and "steer" the back end a bit. On a high power car it can be alarming to feel the back end wiggle under power.
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Last edited by Parko; 11-13-2017 at 11:29 AM.
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post #5 of 7 (permalink) Old 11-13-2017, 11:38 AM Thread Starter
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Conversion was done by a Dutch company owned by Lotus importer der Kooi. See evblog.wanjon.nl
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post #6 of 7 (permalink) Old 11-13-2017, 12:02 PM Thread Starter
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Quote:
Originally Posted by Parko View Post
Sounds like an interesting car, maybe some pictures of the electric conversion install would help people spot potential causes of the symptom. Or at least, it would be cool to see what you've done!



You're correct but note OP is from the Netherlands and possibly not a native English speaker.

I have sometimes had limited slip diffs move torque around on RWD cars and "steer" the back end a bit. On a high power car it can be alarming to feel the back end wiggle under power.
Yes, iím not a native English speaker. I found torque steer the best way to describe the behavior of the car. Itís not that i feel the steering wheel turn, like in a FWD car, but the car changes direction and if I donít lift my foot I need to turn the steering wheel to correct the direction.
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post #7 of 7 (permalink) Old 11-13-2017, 03:03 PM
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I think the FIRST place to start is to verify the tightness of all suspension components. On my Esprit, Lotus specifies that as part of a B Service, and I do that every couple years or so.


When I first got my Lotus, some of the control arm mounting bolts were not tight at all! At that time, I loosened them all, weighted the car with two simulated 'passengers' as the service manual says, and tightened them to specification. No issue since.

I know on Elises that the rear suspension especially, needs to be checked regularly.

+++++++++

Also, check for deteriorated rubber suspension bushes, and play in any ball joints.
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Atwell Haines
'88 Esprit
Succasunna, NJ USA


"Not all angels have wings." - Turbo R
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