A&Q about 350Z
Q:
am i right in thinking that the fact that both drive shafts are diffrent lenghts causes torque steer?
if so is there any reason why you can't use 2 N/S drive shafts with some sort of spacer between the drive flange and CV joint?
will this work?
A:
if it was that easy surely the manufacturer would do it , but saying that although i cant remember exactly what my old 205 had a bracket/extension on the long driveshaft and i dont remember torque steer being the problem it is on my mk 1.
A:
the ford escort my parents drive has a extra fixed shaft with a bracket supporting it where it joins what would be the inner CV joint.
it would have to be really strong and a custom job but think it might be worth a go.
A:
Some cars have a weight on one driveshaft.
A:
atb diff helps
A:
Some cars have a weight on one driveshaft.
which shaft?
A:
atb diff helps
iv got one ATM but i still get torque steer!
A:
How much power are you fighting & how good are the tyre's?
A:
also isnt this why they are different thicknesses. i think the wrong offset on the wheels would nt help.
A:
What tyres do you have on it? Are they the same on both sides? Are they correctly inflated, etc?
I had firestones on a MK1 XR2 I had, they were terrible and would cause torque steer and braking (usually on uneven/patchy roads), which disappeared when they were replaced. That and the recall VW put out on some of them put me off Firestone for life.
A:
tyres are the same all round and correctly inflated!
the tyres are avons ZZ3's but it's on my 9x16's that i notice it most. it's probaly down to the wheels/offset and no power steering. if i floor it hard in 1st or 2nd it does it quite bad. it's a carbed 2.0l 8v running around 150 bhp.
A:
Reason i asked about the tyre was because i thought my quaife atb was broke because i had bad torque steer & tram lining but after changing the front tyre's it disappeared.
A:
atb diff helps
iv got one ATM but i still get torque steer!
Me too!
A:
Some cars have a weight on one driveshaft.
which shaft?
longest one - e.g. psa cars ect
A:
Yeah but it is't that causing the problem on a 150bhp 8v.
& doesn't matter about power steering.
A:
what tyres you running to reduce it?
A:
I was using cheap tyres & was terrible but even ones like toyo proxies were a big difference.
A:
the weight is summat to do with a harmonic frequncy I've heard, the weight changes the vibration period.
One shaft on a golf is hollow and the other is solid to help get the same torsional stiffnes to help with torque steer, but the uneveness of the length isnt the whole picture, if it was then an Audi 80 wouldnt do it. From my recollections of the Mk1 A80 we had, it was terrible, especially in the wet over uneven surfaces.
A:
Upper and lower strut bracing can help a slight amount.
For the Quaife diff to be fully effective both sides of the suspention/steering must be in similar condition.
A:
i think it must also be partly to do with how my engine makes it's power/torque. off idle/ low end responce is like nothing else iv been in. it made 143bhp and 153lbs with the ignition timing way out because of the 1.6 dizzy. now i'v set up a 3d mapable ignition system it pulls ALOT harder. also a diff (pulls you wear ever the wheels are pointing) with wide tyres (tranlines and follows the contours of the road) with uneven roads. is not a good combo.
all the running gear is in good condition and have upper and lower braces.
do you not think having both drive shafts the same length would be a good thing?
one of the reasons i was looking in to using a 6 speed box was for this very fact.
A:
I don't get it bad with my engine in the mk1 but i do tend to hold on to the steering hard as it can snap at you in the twisty bits if you slam your foot down?
What's your wheel size,tyre size & make?
A:
Sounds like the wheel's are causing a fair share of the problem. No real problems laying down 190+hp on mine with a fair bit of camber and toe out as well.
A:
9 x 16`s are far too big ... they must be low offset ... putting the geometry out
Do the ZZ3`s have `soft` sidewalls as this wouldn`t help matters
A:
Like i said, tyre's & wheel size can effect it big time.
A:
Honda make the long shaft the same torsional stiffness as the short one, and allegedly as you accelerate both axles "wind" the same amount
however on a mk2 it's usually the bushes/alignment/track rod ends are all fecked causing all sorts of unintended geometry changes.