Five things people get wrong about car suspension

When thinking about road handling, all these are wrong: (1) To improve handling, you need to change all the suspension parts. (2) Tyres fix handling. (3) Aftermarket companies sell matched shocks and springs. (4) If you improve handling, the ride gets worse. (5) Suspension is really complicated to understand. www.amazon.com/Vehicle-Ride-H... or Amazon in your country.

[@tiitsaul9036]

I just received the book. It's a fat one 😮 it will take me a while to go through it. Cheers.

[@JulianEdgar]

I hope you like how your pics are used. Thanks again for supplying them.

[@peaceonearth8693]

Please! How was the text or font size? Is it a strain to read it or comfortable and unnoticeable?

[@JulianEdgar]

The body text is Arial 10 point with 1.15 spacing. Easy to read.

[@dukinse5198]

I can relate as being wrong at the 5. I always thought suspension is way too hard and complicated

[@johnbarker5009]

Super advice. Address the issue that's causing the problem. You even hear that at the level of professional racing, when you listen to drivers and crews talking about how the car is driving. The crew always wants to know what issue most concerns the driver. Understeer, oversteer, balance that changes dramatically from low speed to high speed, bottoming, unpredictability... The crew always wants to know what has the driver most concerned. We can think the same way about our own cars as we seek to tune the suspension. Not only does none of it require us to make mass changes, but if we do make mass changes we won't know which thing we did that has caused some new problem with the handling.

[@JulianEdgar]

Absolutely.

[@MrWilliam.Stewart]

Don't shop online myself, but have made an exception for this book, my book is due on 5th of July 😃 Cheers Jules.

[@milesredgate4596]

I ordered my copy today. If it's even half as informative as your videos it'll be a great read.

[@JulianEdgar]

I think you'll find it is many times more informative than my videos - 10 minute videos are a poor medium for conveying ideas in depth. (If you like the book, please leave a detailed review on Amazon. Reviews are one of the few ways a self-published author can promote their books.)

[@mceajc]

Does this mean I could get a set of terrible, cheap tyres in order to test the limits of handling at lower - and safer - speeds?

[@JulianEdgar]

To an extent, yes. Or test on slippery surfaces - refer to Page 218 of the book.

[@avincombat939]

Great video! I have always avoided diving into suspension up to this point due to how daunting it seems but this really simplified things for me.

[@JulianEdgar]

Glad it was helpful!

[@Splarkszter]

Woah. This is so informative. Thank you so much for these videos! When i have spare money i'll buy your book but please keep making the videos too :D

[@parrotraiser6541]

Point #5 Some people seek profundity through obscurity.

[@Mistabushi]

I’ll wait for reviews. My problem with buying these types of books online is that usually just cover general information with maybe some real-world stories, but nothing in-depth and proper technical info.

[@JulianEdgar]

The contents page is shown on Amazon - www.amazon.com/Vehicle-Ride-Handling-Modification-Development/dp/B0D7327WSB Click on 'read sample' or scroll right down the page.

[@TheBaldMiddleAgedMetalHead]

Most if not all road cars just understeer too much and a thicker rear roll bar is all most cars will ever need.

[@JulianEdgar]

Yes, as covered in kzbin.info/www/bejne/fna0k3d9d82UbK8

[@herniagaming]

An lsd as standard on fwd cars would be nice as well, probably ironically safer as well

[@jonclark25]

Is this book also going to be applicable for club level race cars? Or primarily road car based?

[@JulianEdgar]

The book is primarily aimed at road cars, however there is a great deal in the book that is applicable to club level racers. The content pages are visible on Amazon when you click on 'read sample'. www.amazon.com/Vehicle-Ride-Handling-Modification-Development/dp/B0D7327WSB

[@johnkim3858]

Will the content of the book help when designing a suspension from scratch? I am struggling with whether anti-roll bars are worth the integration hurdles. What I am looking for is mainly why car manufacturers choose to have anti-roll bars in their designs despite additional parts. Is it as simple as “to not bottom out the suspension when the car rolls under lateral accelerations?” Also, does the book have equations for determining how much flat-ride spring rates affect dynamic pitch stability from a traction to an NVH standpoint?

[@JulianEdgar]

The content of the book will help those designing a suspension from scratch - it's one of the target audiences. Springs of appropriate stiffness don't provide sufficient anti-roll capability on their own. Re flat ride, I've already answered you on that topic - buy the book if you want more.

[@johnkim3858]

@@JulianEdgar You did answer the flat ride question last time; sorry, my bad. Thanks for the clue on anti-roll bars. 👍

[@nooooooooooo6uoki67]

@@JulianEdgar Ah ha, so even if you have overly stiff suspension the car will still tend to unload one side? Interesting, I guess this depends on how much speed you carry through a turn right? Cheers!

[@JulianEdgar]

The greater the suspension stiffness *at one end of the car*, the more the inner tyre will unload at that end. Suspension stiffness does not change total weight transfer.

[@nooooooooooo6uoki67]

@@JulianEdgar Very interesting, bought the book and I hope you enjoy your weekend

[@dukinse5198]

At point number 2, I have heard a lot of tyre journalists comment about tyres making the car understeer or oversteer. Are they lying or what? I mean the same exact car just rotating through makes of tyres.

[@JulianEdgar]

They're talking absolutely tiny changes. With setting up suspension, I am talking the ability to make huge changes.

[@goldar4846]

I've got an issue with my car that nobody is able to diagnose. The front left likes to lose all grip without warning on right hand turns when driving spiritedly. An alignment has been carried out twice and every component other than the shocks and top mounts have been replaced. Tyres are mps4's. What could be the cause of this? What geometry change would cause it to act like this?

[@JulianEdgar]

If the car behaves differently in left-hand versus right-hand corners there is something asymmetric left/right in the suspension. I couldn't comment further than that.

[@Brainiac31]

Does one wheel lock up first when panic braking? Does it pull to the left or right? If either of these are true, it could be your corner weights are off. Find a shop with scales and have it checked.

[@peaceonearth8693]

I've noticed a trend in modern books. Which is, sometimes the size of the text or font is too small to read. Older books never had that cheap-shot built in. I hate to spend money on a book unless I know the publishing house did not pull this sabotage. Your book seems like it would be good.

[@JulianEdgar]

The body text is Arial 10 point with 1.15 spacing. Easy to read. Some books go to small text to save in printing costs. I chose not to - one reason the book is expensive!

[@peaceonearth8693]

@@JulianEdgar 👍 👍

[@bsiccs]

Where are you selling your books sir?

[@JulianEdgar]

Your nearest Amazon should have it.