We wanted to convert our car to a 5×114.3 bolt pattern mainly because of the greater selection of wheels available. We are going to use Enjuku Racing’s Ichiba conversion kit. The kit is very high quality, the hubs are accurately CNC machined from steel with thick flanges for maximum stud engagement.
What is not known to many people is that under road racing conditions there is a lot of stress on the wheel bearings and loose or flexing bearing causes brake caliper knockback. This can cause a surprise low pedal situation when you are not expecting it. The Enjuku hubs use high-quality OEM bearings so this won’t be too much of an issue. No cheap Chinese bearings here!
This covers the front of the car, stay tuned, we will be breaking down the rest of the car’s suspension with more of GKTech’s super innovative suspension. Like we said earlier, GKTech has considered every aspect of modding the S-Chassis suspension and has incorporated more tricks that previously have only been available to pro teams than any other suspension company to date!
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7 comments
looks fanstastic! I always wondered about these arms and knuckles. Thank you for the in-depth review
“ Road racing cars need Ackerman in their front steering geometry and typically you want a gradually rising Ackerman curve that is slightly less than the geometric true Ackerman. For drifting, you want a digressive Ackerman curve. This tends to understeer in grip driving. GKTech makes 3 different knuckles. A grip driving one, a drift/grip one, and a super angle drift only one.”
^This really is ‘the secret’ to handling with rubber tires and their slip angles. In F1, I know that they even do an Anti-Ackerman setup!
https://www.f1technical.net/forum/viewtopic.php?t=8874
Until you understand these principles in theory and practice, you can’t really have a solid understanding of how to make a car handle.
It’s weird with open-wheel cars, We found that anti-Ackerman causes understeer in road racing in sedan-based cars.
I think it has everything to do with the tire. I am sure that F1 had to change up the anti-Ackerman when they switched to 18” wheel rims this year.
The ‘max lateral load’ (and associated ideal slip angles) for radial street tires is probably way different than the race rubber they run in F1. Also, downforce needs to be factored in.
My Holy Bible on tires is this book, if anyone that wants to race a car is serious about winning, or just being competitive, don’t get a HUGE REAR WING, please read the bleeping manual!
I ordered a copy and the author Paul Haney even signed it! What a guy! So happy for him to take my money!
https://www.standardsmedia.com/The-Racing-and-High-Performance-Tire-8627-book.html
I ordered the book!
they didn’t have it!
the book is out of print, considered a rare book and no one has it!