ZilviaKid

i can attest to the fact that r888's suck on the street. if it isnt a very warm day and you arnt going for a long drive you may want to be pretty careful or do some hard braking to get them hot.

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2006 Honda Ruckus - Fat & Low

Sumslapper

I daily on r888's and they are fine as long as your not driving like a jackass. There only sketchy on standing still water but any summer/track tire is going to be a little more challenging in the rain.

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smellslikecurry

anyone have any experience with a048s on the street?

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KA240SX808

^There Awesome
(Only exp. on the Front)

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Te37

OKAY...so i see everyone running 275-315 tires but most are running either an unknow camber or -2 to -3 degrees. I would rather run a 255 with -.7 camber than 275 with -3 camber, am i wrong in saying that?

[email protected]

^ I'm actually running 275 drag radials with .5 camber

Regards,
Robert

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GripTerror

You're probably wrong because you're thinking that's bad for you. Our cars and most other mcpherson strut cars like more negative camber (eg; bmws). It helps your turn in and grip in corners but it depends on various factors such as tyre type (not all react the same) and suspension setup.

[email protected]

you're absolutely right. camber defeats the whole purpose of the bigger tire contact patch. for example a 255 drag radial with -.5 camber will have a greater and more usable contact patch than a 275 with -3 camber.

Jay97240Sx

Both of you made valid points, 2.5 - 3 is wack for contact patch and tire wear.

GripTerror

toe = tire wear
camber =/= tire wear

Def

Take a corner and you'll need negative camber.

I run -3.4 deg up front with my roll center corrected which gives better camber gain and I still wear the outside of the fronts on track. I'm thinking going to closer to -4 deg.

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S13 Hatch - Goes around tracks quickly
DEFSPORT

GripTerror

^I ran even -4.5 at one point.... and my tires according to my alignment guy (who races) said are unbelivabley well properly worn (with barely any wear) and i drive hard...

Toe = the devil... but camber will not chew your tires away....

In the rear too much camber may cause acceleration problems... but.. for cornering.... more neg camber in the front rocks

fckillerbee

you get a lot of body roll and suspension compression in cornering?

I would think you would want less camber with less roll so the tire achieves max grip all the time....rather than max grip at -4 degrees? Unless you are running specific heavy banked tracks?

Sorry man...i do the drifting, always interested in the grip dudes stuff.

GripTerror

drifting = you're doing it wrong

lol sorry had to throw that one out :P Just kidding.

Negative camber is pretty common while cornering... theres alot of forces.... we don't wana slide... we wana corner faster...

fckillerbee

fixed ;D


I've just known dudes that ran 1.8 degrees up front...but never heard of -4 on a grip car that wasn't nascar.

Te37

I do -1.5r -1.6f for a daily...feels good on highway and I can do a corner at 50. -4 would be over kill...what do you do in the strait aways?

mikerbike

I had the opportunity to drive behind my car on (in my other car) on the way home from the track one day. Back then it had ~-0.5* on the rear (measured with a carpenter's square ,some simple math and a garage floor that is probably not flat) and it gained a notable amount of negative camber over bumps.

I know it has to do with ride height, as camber gain in increased as suspension compresses. There was about 1.5" from the top of the fender arch to my 17" wheel. And I had 10k springs on the rear.

I used it like that for 2 open track days before the turbo was installed, running 225 street crap tires. I didn't feel like it was low on rear grip, but instead it pushed like normal.

I don't drag race, but If I did (I would get a Mustang or Camaro ) I would try 0* and pretty tall ride height to minimize camber increase with suspension compression.

I run 0* on the rear now, and I've gained some traction while sliding, but it also feels like there's less normal grip back there for normal cornering.

Long, boring post. Don't read it.

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jaysgottaredtop

my housemate got a new set of 17x10 Stern Reps and 295/35/17 Kumho XSs for his mk3:


for shits and giggles, i tried them on my s13:














specs:
s13-specific PJ Bonifacio (or very similarly styled) flares, you can buy these/similar ones here
f: 17x10 +20, 295/35/17, 6mm spacer
r: 17x10 +20, 295/35/17
-1˚ (ish) camber all around

rear clearance is fine. front is close to hitting everything when steering, even with my beat-out-to-all-hell wheel wells for steering clearance on my usual setup. if i raised it up some, i might be able to get away with it, especially if stay away from full lock. looks do-able for a track setup. drifting, not so much, it would eat shit up at full lock.

also, i checked steering clearance while sitting; i didn't actually drive it. i can't promise that 6mm spacer is enough to actually clear the tire and coilover. it was REALLY close. the tire may have been resting on it, i just couldn't see back there well enough to tell for sure.

i have an SR with 550cc/n62/gt2560rs/15psi, definitely no more than 300hp. i don't actually need a 295; a good compound 255 would be fine... but the insane amounts of meat is SO very tempting!

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Fred Allen Burge

I like that a lot ^^, those wheel remind me of older Mustang Saleen or Cobra wheels.

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JFoxx

335/30/18 rears -1.5 camber

ill post better pics once the brakes are done and i can take it outside the garage....

how do you post large pics from photo bucket?

GripTerror

clearly you have something new to learn every day and most mcpherson strut race cars dont run under -3.

jaysgottaredtop

yep, they're Stern Saleen replicas.

Silver SC Style Wheel 94-04 Mustang (17x10) at AmericanMuscle.com - Free Shipping!

^ that

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SicBastard

Hoosier a6 tires are designed to run at 3-5 degrees of camber. Anything less and you're leaving speed on the table. The best finishing S-chassis car that I know of in the scca was running 4 degrees in the front.

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fckillerbee

the nascar thing was a joke. i only know they run heavy negative camber on one side..how much...well I don't run nascar, nor do I see myself ever running nascar.

Thanks for the lesson obi wan.

future

335s, damn. Please tell me you have 500+rwhp

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GripTerror

yes sir

JFoxx

yes....although i dont have exact numbers yet.....and i dont like to speculate until i have proof.... ill post more pics later.....

smellslikecurry

335? how wide are your wheels?

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JFoxx

18x12 +20.... fits under a 50mm fender perfectly with no spacer.....

JFoxx

295's may be a little wide for a 9 inch rim.... i would say 265's would be max on a 9" rim.... any wider your losing performance....

295 is an 11.6 inch tire..... just to put in perspective....