Kpmikey808

Could I get some help please

Have tein basis coilovers with front/rear spc control arms & camber kits

Was running nexen 275/30 20 in rear & never rubbed - I have family of 5 in the car & never rubbed in the back

Got some Achilles tires 275/30 20 & they did alignment & car now rubs with whole family in the car

The tires were such a deal 90$ for each tire - couldn’t turn it down

Different brand of tire & alignment is making it rub?

What would easier & cheapest

raising car ?
Adjusting alignment
Rolling fenders

Thanks for the help

slartibartfast

iTrader: (7)

275 is the "nominal" width. Your old tires might be narrower at the shoulder.

You might also have more negative camber added.

Kpmikey808

I think yr absolutely right - old tires nexen had narrowerer shoulders in them compared to new ones

Would more negative camber make tires wear out uneven

blnewt

iTrader: (13)

If you keep your toe in spec you can get away w/ more negative camber to a point. What is your current camber setting in back?

Kpmikey808

It couldn’t print out that day & I cannot remember what he said

Alignment was 40$ & unlimited alignment for next 3 months
I plan on going & taking a pic of numbers on 🖥

I really don’t understand all those numbers with toe/camber & stuff - just a lil confusing to me lol

Maybe I can find the perfect specs for the best tire wear

Thinking of going springs & shocks way -

b thx for all yr expertise & knowledge on our car

slartibartfast

iTrader: (7)

Unless aftermarket adjustable upper control arms are installed, there's no changing front camber. Only toe is adjustable from the factory. Rear can adjust for camber. Most people shoot for 1.5 degrees negative camber, I run 2 degrees negative front and rear for extra bite in turns.

Aim for factory toe settings.

Kpmikey808

Had the spc front & rear control arms installed

slartibartfast

iTrader: (7)

Dang. They say memory is the 2nd thing to go as you age. I can't remember what the 1st thing is. You mentioned the arms in the OP and I couldn't remember that by the time I posted.

So yeah, try some more negative camber and see if that does the trick.

Kpmikey808

thats what i was thinking


i want my tires to last longer

what would be a good number for negative camber

Kpmikey808

is there or could somebody send me a pic of good numbers for alignment

toe castor
rear camber

don't know to much about these numbers

blnewt

iTrader: (13)

Mikey, here's a sample spec sheet, I'd try to keep everything except camber within the specified ranges (caster can be a bit off too without ill effect, in fact I like extra caster ) For sedans the spec range for camber is a bit lower, but when keeping toe in spec you can push that up. I wouldn't go more than -2 unless you must to get the tires to clear.

slartibartfast

iTrader: (7)

For the uninformed, caster helps with self-centering and that feel of the car knowing what straight ahead is. Boy, that's awkward but I haven't finished my coffee.

Kpmikey808

Thx Brad - appreciate it!

I’m gonna take that with me

Kpmikey808

Brad took FTG measurements again & rear is 26 & front is lil over 26 both side
U think tire rub in rear will be better after lifting to 26.5

Is it hard to use wrench on tein basis coilover to lift a little

blnewt

iTrader: (13)

Hard to say without actually seeing your setup and where exactly the rubbing is occurring. As you lift up the negative camber will slightly decrease but will end up the same under compression. If you lift up and adjust your camber to be the same as it was when lower, then you will get more relief at the fender edge and a bit more on the inner fender liner.

I have mine at 26.25 all around (was at 25.75 on B&G springs) and the ease of getting around the streets is SO much better, so for that reason alone I would recommend a bit higher, even a 1/4".