Lateral acceleration

[FivepointOHYEAH]

I've looked through other threads and hopefully didn't paaz one up. But my question is how to practically gain lateral acceleration. I've upgrades my suspension a bit with tower braces and cradle lockouts for my IRS. I've also gotten 275s in the rear. I can hit 1.05 and accelerate pretty damn hard through turns. I want to be at 1.10 g's to match my buddy's stingray. How do I get there. I haven't lowered my car because go me that's just not practical for my dd and parking garages. I appreciate someone educating me because I don't know much about suspensions. Also my car rides like a dream. So wouldn't want to screw that up too bad.

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[leszek]

Upgrade your tires. Everything else helps but tires are the biggest influencer on lateral g's

 

[FivepointOHYEAH]

Upgrade your tires. Everything else helps but tires are the biggest influencer on lateral g's

I'm on street comp mickeys at 275 so idk what would be much better. Short of any drag radial.

 

[leszek]

Front as well? Is your car neutral or does it understeer? Your tires seem the best you can get for street for now.

 

[FivepointOHYEAH]

Front as well? Is your car neutral or does it understeer? Your tires seem the best you can get for street for now.

when she lets loose its usually all four, i get understeer usually from something stupid, like a 90 degree turn at 50 mph. 265's in the front, the sticky P-zero's. Alot of people hate that tire but they feel to me really good. I drove a buddys 2015 WRX and 2014 370z and they both agreed my S550 felt tighter and held to a corner.

 

[DickR]

I'm on street comp mickeys at 275 so idk what would be much better. Short of any drag radial.

Bridgestone RE-71R is the 19 inch street tire of choice for autocrossers. Dunlop ZII Star Specs are not too far behind if you don't intend to autocross competitively but might have longer tread life.

 

[FivepointOHYEAH]

Bridgestone RE-71R is the 19 inch street tire of choice for autocrossers. Dunlop ZII Star Specs are not too far behind.

I got big ole 20's. After a ton of research people seem to recommend mickeys but that changes in every thread But i guess the consensus is just upgrade rubber? I figured as much since i barely have any body roll as it is.

 

[leszek]

you can get wider rubber along with wider wheels.

 

[EXP Jawa]

Keep in mind that everything that your car does dynamically, it does by way of the tires. That makes them, IMHO, the most import part of the car (and unfortunately one that's commonly overlooked). So yes, upgrade your tires.

Drag radials aren't really developed with maximized lateral grip in mind, that's not their focus. As Dick pointed out, autocross tires are where its at. The ultimate would be going to an R-compound tire, but treadwear and wet-weather performance would suffer. A tire like the BF Goodrich Rival S is also a good choice for extremely high lat-g performance without being an all-out slick. The Bridgestones are also well regarded. But, yeah, just going to 275 section width alone only gets you part way there.

 

[FivepointOHYEAH]

you can get wider rubber along with wider wheels.

I was afraid of this....ive got the 20x9 so if i changed them all out i would be looking at $1600 in rims and $1000 in tires...but i guess I could get $1500 for my rims and tires??? idk but if thats the case ill have to wait about1-1.5 years to eat these tires up and then spend that money. For that price i think cheapy drag radials would do that trick/

 

[EXP Jawa]

For that price i think cheapy drag radials would do that trick/

Drag radials aren't really developed with maximized lateral grip in mind, that's not their focus.

If you really want to best your buddy's lat-g performance, you really need a tire designed with that as its primary goal...

 

[FivepointOHYEAH]

If you really want to best your buddy's lat-g performance, you really need a tire designed with that as its primary goal...

I just saw your post about the R compound tires. Which would you recommend and to not be spending too much too fast on tires since I have 6 right now and only drove 4 obviously. Could 2 r compound. Just go on the front where the grip really matters? And keep my street comps on the rear? And yeah f my buddy and his money and GM products

 

[EXP Jawa]

You can try upgrading the front first, but don't be surprised if that doesn't get you where you want to be. In my experience, tires should really be matched front to rear. Not necessarily in size, but in tractive ability to the load applied. If you just put sticky tires on the front, you might find that the car continuously washes out in oversteer because the lower lateral grip in the rear holds you back.

Unfortunately, R-compound or otherwise extreme performance tires are the opposite of low-cost, they are low volume, niche tires with expensive tech in them. That's a formula for high cost. You gotta pay to play. 20" wheels are working against you here, tire cost usually scales with wheel size, though sizes that have higher volumes mess with that. 20" size offerings are also more limited than 18 & 19", since race cars rarely use larger diameters than necessary.

 

[FivepointOHYEAH]

You can try upgrading the front first, but don't be surprised if that doesn't get you where you want to be. In my experience, tires should really be matched front to rear. Not necessarily in size, but in tractive ability to the load applied. If you just put sticky tires on the front, you might find that the car continuously washes out in oversteer because the lower lateral grip in the rear holds you back.

Unfortunately, R-compound or otherwise extreme performance tires are the opposite of low-cost, they are low volume, niche tires with expensive tech in them. That's a formula for high cost. You gotta pay to play. 20" wheels are working against you here, tire cost usually scales with wheel size, though sizes that have higher volumes mess with that. 20" size offerings are also more limited than 18 & 19", since race cars rarely use larger diameters than necessary.

Well my rear doesnt come out now so I figured the front is the weak link. I think ill just have to be complacent then for now. He has 19 super sports that stick pretty dang well. Mine stick too but he might honestly be beating me by that .05 do to being 300 lbs lighter. I just cant justify spending that much to gain that little on a corner. Bet my mind will change in a matter of weak though. :headbonk:

 

[EXP Jawa]

The front is your weak link at the moment. With wider tires on the rear, you're probably already understeering some. But if you change to an R-compound on the front, you'll change that balance enough that you'll move the weak link to the rear and will need to upgrade that accordingly so that your grip is balanced.

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