wassup guys I just came back from Italy after staying there for 6months, and during that time my teg just sat there. After I came back I changed the battery and oil changed my car this time using Mobile 1 full synthetic, and it pulls a lot harder then when i used regular oil. However currently i have on 15in stock rims, and im getting 16 X 7 Inch rims (rota slipstreams), and my question is after putting those on, will it make a big difference in speed and pull? Would I see a noticeable down in performance? thanks...

 

Maybe better handling in a turn w/ the wider tire, but speed performance, no.

 

Like will putting on 16in rims slow down the car a lot?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LSintegra &raquo;</TD></TR><TR><TD CLASS="quote">Like will putting on 16in rims slow down the car a lot?</TD></TR></TABLE>

No ........ for what it's worth, rotas are fairly light rims. If it worries you compare weights of the slips and your stockers.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by simon98h22 &raquo;</TD></TR><TR><TD CLASS="quote">No ........ for what it's worth, rotas are fairly light rims. If it worries you compare weights of the slips and your stockers.</TD></TR></TABLE>

Even though most Rotas are fairly light, you will lose some acceleration and braking performance with a 16, since the mass of the wheel itself is further out fomr the center. It probably wont be noticeable to most people, but the difference weill be there. Just the same, I'm running 16x7 wheels on the street, but 15x7s at the track.

 

with a 16" rim you wont notice any difference IMO.

 

Depends really on what the specs of the current tire and wheel are, and the new tire and wheel.

You'd have to know wheel diameter, wheel weight, tire weight, tire width, and tire aspect ratio.

From there you can estimate the increase or decrease in total wheel/tire inertia.

 

the way i see it, non technical... is

heavy 15" with tire weighs lets say 50lbs (example numbers for ease)
light weight 16" with tire weights lets say... 45lbs

but the 16 is bigger than the 15 so it takes more power to turn a bigger wheel than a smaller one therefor acceleration might suffer a tad bit, but not by much. handeling will be improved a great deal and if you get a tire that has a stiffer sidewall, it'll increase more since there will be less "flex" in the sidewall under hard turns

but IMO, for a balance of performance, looks, and avaliability.. 16's work perfect

 

Just did a quick comparison,
OEM 15" alloys w/ Yoko AVS 195/60/15 Rubber
vs
Slips 16" w/ Yoko AVS 205/45/16 Rubber



Not much of a difference.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LSintegra &raquo;</TD></TR><TR><TD CLASS="quote">Like will putting on 16in rims slow down the car a lot?</TD></TR></TABLE>

only if the 16's are heavvvy. There was an earlier thread on weight reduction and someone mentioned that

1 pound unsprung weight = 10 pounds dead weight

 

Tire diameter effects gearing so it could effect performance. Most guys that use larger rims/tires in a performance application change out their final drive to make up the difference.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TunerN00b &raquo;</TD></TR><TR><TD CLASS="quote">Even though most Rotas are fairly light, you will lose some acceleration and braking performance with a 16, since the mass of the wheel itself is further out fomr the center. It probably wont be noticeable to most people, but the difference weill be there. Just the same, I'm running 16x7 wheels on the street, but 15x7s at the track.</TD></TR></TABLE>
Bingo! Give that man a cookie. Anytime you move mass away from center there will be greater drag. In this example it won't be a ton, but there WILL be some difference.

danvuquoc has a good little chart, but what it doesn't address is "rolling resistance". In simple terms if you were able to give your Teg a push on a flat surface it will roll further with the smaller contact patch rims & tires. IE - the 15". This also affects MPG and acceleration/deceleration. It is basic physics.