How to screw up your cars handling and ride - step by step!

[Kostamojen]

Originally Posted by totopo

haha haha, 15-20% faster? So since lateral acceleration needed is squared you are saying you have 32-44% more lateral acceleration? So that would go from a stock 0.89g skidpad to 1.18 to 1.28 g skidpad? Holy crap your car would have to grip better than like corvettes on hoosiers

No, I said 15-20% faster as in MPH in a corner.

MOST of that is from the sticky tire compound and wider tires. Anyone here who has upgraded their tires can attest to this.

The rest is just trying to dial it in with the right bits, alignment, tire pressures, etc.

[7thgear]

Originally Posted by totopo

So that would go from a stock 0.89g skidpad to 1.18 to 1.28 g skidpad? Holy crap your car would have to grip better than like corvettes on hoosiers

a stock FRS on a decent highperformance street tire can reach 1.2g no problem...


1.3 with is easily possible with suspension mods.


hell, I broke 1.0 peak on stock tires :/


Hoosiers can easily skyrocket you into much higher numbers than 1.3

[Racecomp Engineering]

Originally Posted by 7thgear

a stock FRS on a decent highperformance street tire can reach 1.2g no problem...


1.3 with is easily possible with suspension mods.


hell, I broke 1.0 peak on stock tires :/


Hoosiers can easily skyrocket you into much higher numbers than 1.3

On a skidpad? Or just peak g's? There's a difference.

- Andy

[7thgear]

Originally Posted by Racecomp Engineering

On a skidpad? Or just peak g's? There's a difference.

- Andy

peak of course


although, take a look at section 13 and 15, both me and my co-driver hung on to very close full G on OEM's for some 50 meters each section.

[Malt]

Originally Posted by 7thgear

peak of course


although, take a look at section 13 and 15, both me and my co-driver hung on to very close full G on OEM's for some 50 meters each section.

Is that from an AIM Solo or Solo DL? Do you find that it was worth the investment? Thanks!

[Tranz]

Well considering Staggered wheels / tires are here, can anybody give me an opinion on what to do?

I'm looking at 2 sets of wheels, one are cast and heavier, but square, the other is a 3 piece (that I'm pretty sure are forged) and staggered.
So which compromise do I make, lighter and staggered, or heavier and square?

[Kostamojen]

Originally Posted by Tranz

Well considering Staggered wheels / tires are here, can anybody give me an opinion on what to do?

I'm looking at 2 sets of wheels, one are cast and heavier, but square, the other is a 3 piece (that I'm pretty sure are forged) and staggered.
So which compromise do I make, lighter and staggered, or heavier and square?

Do whatever you want to do...

...Just realize what you are actually doing. That is the purpose of this thread.

[totopo]

Originally Posted by Kostamojen

No, I said 15-20% faster as in MPH in a corner.

MOST of that is from the sticky tire compound and wider tires. Anyone here who has upgraded their tires can attest to this.

The rest is just trying to dial it in with the right bits, alignment, tire pressures, etc.

I know you did. And I'm saying to go 15-20% mph faster in a corner you need 32-44% more lateral acceleration.

Originally Posted by 7thgear

a stock FRS on a decent highperformance street tire can reach 1.2g no problem...


1.3 with is easily possible with suspension mods.


hell, I broke 1.0 peak on stock tires :/


Hoosiers can easily skyrocket you into much higher numbers than 1.3

Soo I was talking about relative improvements and using the stock skidpad number as comparison, and the twins are nowhere near 1g skidpad stock.

http://www.roadandtrack.com/special-...transformation

Another test somewhere on a tuned frs got 1g skidpad on advan neova08.

To get skidpad number in the 1.2 to 1.3 range would need like racing slicks and a super lightweight race car. Arial atom3 runs 1.12g skidpad.

I honestly don't know how to evaluate peak g. How well does it correlate to cornering speeds?

[andrew20195]

Originally Posted by totopo

Soo I was talking about relative improvements and using the stock skidpad number as comparison, and the twins are nowhere near 1g skidpad stock.

And maximum cornering force is significantly greater than steady cornering force.

[fatoni]

Originally Posted by totopo

I know you did. And I'm saying to go 15-20% mph faster in a corner you need 32-44% more lateral acceleration.



Soo I was talking about relative improvements and using the stock skidpad number as comparison, and the twins are nowhere near 1g skidpad stock.

http://www.roadandtrack.com/special-...transformation

Another test somewhere on a tuned frs got 1g skidpad on advan neova08.

To get skidpad number in the 1.2 to 1.3 range would need like racing slicks and a super lightweight race car. Arial atom3 runs 1.12g skidpad.

I honestly don't know how to evaluate peak g. How well does it correlate to cornering speeds?

miatas on street tires run 1.2-1.3 on the skid pad all the time so it very well may be possible with the frs without slicks

[7thgear]

Originally Posted by totopo

I honestly don't know how to evaluate peak g. How well does it correlate to cornering speeds?

unless you're running long ovals, industry standard skidpad numbers are somewhat abstract.


what makes the FRS, and other cars in it's category, so great is it's control during entry end exit of a corner

Originally Posted by Malt

Is that from an AIM Solo or Solo DL? Do you find that it was worth the investment? Thanks!

I got mine used for half price for a friend


at that price point it's very well worth the money.




you can save a lot of money though by going to app-based programs and Bluetooth gps receivers and the like, although with some you sacrifice on how much data you can pull. Although really speed and g-loads are probably the more important ones. Also keep in mind that the Aim Solo has an internal accelerometer. Something like SoloStorm or RaceChrono will derive a g-load graph based on GPS data.. and it is highly smoothed out compared to actual inputs

[Flyer]

Originally Posted by 7thgear

well, not to piss in your cheerios but I see a lot of that type of talk


this last weekend we had a guy show up to autocross in a 92 Chevy Lumina (or whatever the fuck) on barely legal tires of the same year... and he had a ton of fun


if you're gonna do it, do it


because for every 1 person I know that autocrosses or tracks their car in whatever form its in, there are dozens of people with modded cars who continuously decide to "sit this one out"


so you can be riding on your 265's like a baller.. but a hardparker's gonna harpark... so you gotta be real with yourself

Don't listen to him...




...it was a 92 Cavalier

[Kostamojen]

Originally Posted by totopo

I know you did. And I'm saying to go 15-20% mph faster in a corner you need 32-44% more lateral acceleration.

You do realize how poor the stock tires are right?

And this car is very much capable of over 1G with better tires. I don't know why thats hard to believe, this chassis is very much capable of that without requiring insane tire sizes and huge amounts of power.

[vignesh]

Originally Posted by Racecomp Engineering

I know that sometimes there are extenuating circumstances like budget, timing, significant others, looks, class rules, etc.

Please don't take the list as an insult or a shaming thing. These things happen to all of us. Sometimes when you do one mod it means you really should do another and there's some overlap there.

The point is to do your research and plan carefully. And be honest with your goals, budget, and timeline.

- Andy

If one where to run spacers. Do u recommend running the same size spacers all around, or running 20mm from and 25mm rear spacers have any adverse affect. This is on stock rims with Dunlop z2 tires