Quote Originally Posted by JohnL View Post
If your effective scrub radius has been increased enough to cause noticable torque steer like effects at each steered wheel, and considering that when traveling in a straight line on a smooth road these torque steer effects will be in balance side to side (and hence no pull to one side), then a bad damper causing one tyre to excessively unload in bump might cause the still loaded wheel on the other side to no longer be in 'torque steer balance' with the unloaded wheel and for a torque steer from the still loaded wheel to be felt and a momentary pull to one side that feels like bump steer??

That's a lot of words with no full stops, apologies for the poor punctuation!

Anyway, the short of the above is that it's not unlikely that a blown damper might at least be excacerbating any problem that may exist (even if it may not be the actual cause), and new dampers may reduce the symptom to a degree that it's not noticable.

It's not impossible that when coasting the rolling resistance in the tyre might be enough to trigger an affect as described above, even with no engine or braking torque involved (?), but I might just be trying too hard to defend my theory!

PS,
Just noticed your sig. You mustn't have driven a well sorted carburettor set up, DCOE Webers (and other good carbs) can make very good power! Though you may not get quite the same 'drivability' as with a good EFI set up.
bad dampers in conjunction with a bad wheel alignment (courtesy of bridgestone port adelaide) could cause bump steer tho, right?

oh and i havent updated my sig in a while, i was just messing around with the factory setup at the time. i've done the tweaks to the keihin cv carbs already. currently, im waiting for my high compression kit to arrive, as well as new camshaft, valvesprings, retainers, which should get my compression ratio in the 11s, if not the 12s.

i've also got a pair of dual sidedraught skracing carburetors sitting around waiting for a manifold to be made. theyre dcoe 40, and apparently combine the weber and mikuni designs, so they shouldnt be too bad. once all that is done, i dont think my car will be making monstrous power, but it should have a notable increase in midrange and topend response. i find that the drivability of carbs can be better than efi in some respects, but thats just a personal opinion. most of the efi cars i've driven have lacked bottom end response, including a quad throttle ae101 sprinter, but carbs seem to have plenty of bottom end response, even when theyre tuned for top end. but this is just an opinion, and comparing carbs to a quad throttle sprinter in regards to bottom end response is flawwed as quad throttles are generally aimed at top end power and response.