Das Gespenst
Go Kart Champion
- Location
- Glen Ellyn
Have you calculated scrub radius? Wider not always better.
I have not, how would I go about doing that? Thank you for the input man, this Iis uncharted territory for me.
Have you calculated scrub radius? Wider not always better.
I have not, how would I go about doing that? Thank you for the input man, this Iis uncharted territory for me.
I by no means, know much....only that it matters. I have a Honda Civic I race with a reverse stagger, wheel spacers and I stretch the fronts (205 on 9") onto a wider wheel. I have the luxury of having an alignment shop that caters to track/race cars and the shop has a very similar car too mine he races in another class but has helped me get to where I needed to be.
Here is one of the threads I have read through. I hope it helps, and also, FWIW....what FEELS faster/better often is not.
http://www.pro-touring.com/threads/29872-How-to-Measure-Scrub-Radius-amp-Ideal-Radius
Lol, at least you're honest! I've been doing a lot of reading lately on handling/tires sizes/suspension geometry/etc. What I really need to do is find a racing shop with the right equipment and knowledge and discuss my goals and get a better idea on how to achieve it. It takes a lot to setup a proper racecar! You are correct that wider is jot always better when it comes to tire. But I'm looking at TTRS spindle swaps, camber plates, adjustable ball joints, and lots more. With the correct suspension setup matched with an aggressively wide tire more grip and better handling can be achieved. It just takes a lot to get there.
Look for a shop/team that runs an mkv competitively. Maybe even APR. talk to them and pimp them for what they know. Most, not all, will be willing to help somebody that they don't perceive as a threat. They will give you a bases of where and how to spend your money. They will also get you there faster. Be specific about your goals too. I can run a faster qualifying lap when I toe out my fronts, but tire temps then become an issue 20 minutes into the race, so I gave up some turn-in for tire temp management when I went to 0 toe. If I were doing TT I would run a different alignment. All part of the equation. Just playing with alignment alone you will consume a year of track time if you go it alone. They will save you from buying the wrong stuff (like certain ball joints). I love the topic, It's half of what I enjoy about racing.
I by no means, know much....only that it matters. I have a Honda Civic I race with a reverse stagger, wheel spacers and I stretch the fronts (205 on 9") onto a wider wheel. I have the luxury of having an alignment shop that caters to track/race cars and the shop has a very similar car too mine he races in another class but has helped me get to where I needed to be.
Here is one of the threads I have read through. I hope it helps, and also, FWIW....what FEELS faster/better often is not.
http://www.pro-touring.com/threads/29872-How-to-Measure-Scrub-Radius-amp-Ideal-Radius
One of these days I'd like to try and get all of the members here that are diehard motorsport guys together. Would be so much fun to have everyone Iin the same place, would be a track talk nerd fest lol
What was your reasoning for the stretched tires? I've heard some stretch helps tire deformation, or maybe it was something else, honestly I tune out the second most people mention stretched tires.
Gridlife, there's an event at Gingerman I want to go to. Might not happen this year since I'm stepping up my track antics a lot this year already but in the next 2-3 for sure.
Gridlife, there's an event at Gingerman I want to go to. Might not happen this year since I'm stepping up my track antics a lot this year already but in the next 2-3 for sure.
Had 225 and went to 235. At the same time I've installed 1" wider Kerscher front wings. Camber is about -2.5deg on front and -2.1deg rear. The Car is very well balanced with almost no under/oversteer when the tires are hot. The laptimes were similar but there was an improvement in tire temps with the wider tire. The 225 was overheating towards the end of a 20mins session (last2 laps) while the 235 didn't !
You have all that motor work done and you're only running a K04? Mind blown!
With a 180 treadwear rating it better out perform the PSS at 300I found that Advan Neova AD08R at 235/40/R18 is way better the Michelin PSS at the same size thanks to a much stiffer sidewall and wider contact patch. Will purchase the same tires again for sure.
Sure, but for me the PSS sucked since the sidewall folder under all the time...what is the maximum load capacity available for PSS, I think I picked up the wrong ones intended for lighter cars..With a 180 treadwear rating it better out perform the PSS at 300