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-   -   Finally experienced the "swerving" feel everyone talked about...... (https://www.4c-forums.com/8-alfa-romeo-4c-general-discussion/60830-finally-experienced-swerving-feel-everyone-talked-about.html)

BostonDMD 11-21-2018 04:20 PM

Finally experienced the "swerving" feel everyone talked about......
 
Took a trip from Tampa to Palm Beach on not exactly great road conditions and my unadulterated 4C (stock) showed her true color of just following the countour of the road and jerking the steering wheel unexpectedly..... the higher the speeds the more evident and less reassuring the movements were.....

I need to order the blocks and get a proper alignment, its no fun to drive her like that.....

Sorry for doubting all those that spoke about the issue earlier, I just had to experience it myself......:blush:

JWA 11-21-2018 04:43 PM

Tires and their age also play a big part in tramlining. If yours are getting old and heat cycled out, a fresh set and an alignment should make a big difference.

BostonDMD 11-21-2018 04:47 PM

Quote:

Originally Posted by JWA (Post 990200)
Tires and their age also play a big part in tramlining. If yours are getting old and heat cycled out, a fresh set and an alignment should make a big difference.

Thanks for your input....... although I have less than a 1000 miles on them and I never tracked the car (yet), but it showed real "squirreling" moves on flawed road surfaces taken at a good clip.....

I hope the blocks and alignment help.....

Duffman692002 11-21-2018 04:59 PM

Did mine last night, car has transformed. Installed GMS solid rear bushings too. Steering is a little heavier but it doens't dart around anymore and I can actually drive it with one had now. So far the best thing I've done to my lil Alfa.

Alfanut 11-21-2018 05:01 PM

Quote:

Originally Posted by BostonDMD (Post 990198)
Took a trip from Tampa to Palm Beach on not exactly great road conditions and my unadulterated 4C (stock) showed her true color of just following the countour of the road and jerking the steering wheel unexpectedly..... the higher the speeds the more evident and less reassuring the movements were.....

I need to order the blocks and get a proper alignment, its no fun to drive her like that.....

Sorry for doubting all those that spoke about the issue earlier, I just had to experience it myself......:blush:

You weren’t driving fast enough. I’d describe it as more of a ‘dart’ than a ‘swerve’.>:)

4Canada 11-21-2018 05:13 PM

It definitely is made worse by certain road conditions.
You might want to check your tire pressure in the mean time. That can also be a factor.
I don't believe that the P-Zeros with 1,000 miles on them will be more of the cause than they were when new.

I found that on familiar roads, mine only did this at fairly predictable places. But it was the unfamiliar roads that kept me on my toes!
After correction, it still has a tiny bit of that tendency, but the proper alignment / blocks have virtually eliminated it, and tamed the car's inclination to head for the ditch to the point where one hand (even a finger) can easily stop it. Oddly, my 2016 was solved with just an alignment. The 2015 needed the (street) blocks (which are essentially an alignment in a box, give or take toe settings).

This is definitely something that I would suggests needs to be addressed before tracking the car. As you say, speed makes it more noticeable. The steering lightens up over 100. And if it wants to dart on you under heavy braking at the end of a fast straight, well, be sure you have the tow hook handy!

A proper alignment might be all you need. If not, then Jamie's blocks and the alignment settings that either he or Gale suggest should stand you in good stead.

flyt100 11-21-2018 07:16 PM

When getting just an allignment on a stock car (in my case a 2016), are there certain numbers you have them align to, or do their systems know the preferred numbers to make it less darty?

RYUK 11-21-2018 07:19 PM

I've never had any issues, but have had a solid alignment with spacers [Not the blocks] since month 1.
15mm Front, 25mm rear

ehagerty 11-21-2018 07:27 PM

The dealer did an alignment 1 mth before I bought the car and I have 15mm f & 25mm r spacers and she darts & trams like no tomorrow :|

Apr 2015 build

smc4C 11-21-2018 07:55 PM

I am experiencing the same issue. It hasn't been too bad yet, but I could see it being a problem at high speed or in a panic braking situation.

It's my understanding that the factory alignment is more like an autocross setup vs. a street setup (front toe out or parallel vs a slight toe in). And that the caster is minimal. Correct?

What numbers does the consensus on this forum suggest for street driving (toe & caster). I may take it to the track once in awhile, but would prefer a street friendly setup.

The blocks have been discussed many times on this forum, but I'm still not sure what setting they adjust when installed. The toe can be adjusted via the tie rods, what adjusts the caster? Is that the blocks?

Is the rear alignment adjustable? If so, how?


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