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Old 01-03-2003, 04:08 PM   #1
suby_dude
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Default grip vs. pickup dilema

so i'm debating about the following setup for shoes this season(SM):

1.) 16" Rota Slipstream
225/50/16 (haven't decided on what R rated tire yet)

or

2.) 17" ROTA SDR
245/?/17

so i figured i get i can pickup speed faster our of the corners using the 16"... but then again i'll be able to carry more speed through the corners using the 245s... rite?

any suggestions folks?
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Old 01-03-2003, 05:01 PM   #2
rex n effect
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Did you get rota to make the SDR in 17x8? If you could get them to make a 17x8 wheel, you might gain more than a few customers.
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Old 01-03-2003, 05:03 PM   #3
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Quote:
Originally posted by rex n effect
Did you get rota to make the SDR in 17x8? If you could get them to make a 17x8 wheel, you might gain more than a few customers.
to make a custome wheel i need atleast 50 of those customers to even be worth making those.
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Old 01-04-2003, 04:09 AM   #4
rex n effect
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just curious,
because it's definitely not recommended to put a 235 or 245/40 R17 tire on a 7.5" wheel. You should get a 17x8
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Old 01-04-2003, 09:44 AM   #5
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The WRX needs the OEM or smaller not to kill the gearing. Put 245/45s on your 16s and have fun.

- Steve
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Old 01-04-2003, 09:45 AM   #6
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If you get a 245/40/17 or better still a 245/35/17 to fit go for it. Is there even an R compound in a 245 size? There is no way that a 245/45/17 or even 235/45/17 will help because the WRX gearing is too tall as it stands and such a big wheel will make it worse. I'd favour going as wide as you can fit with the lowest sidewall height available for that tyre width. Of course, you'd have to get an rim that is at least 8" wide.
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Old 01-04-2003, 11:30 AM   #7
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Quote:
Originally posted by zzyzx
The WRX needs the OEM or smaller not to kill the gearing. Put 245/45s on your 16s and have fun.

- Steve
Joe,

I agree. Kumo and Toyo make a 235/40/17 R compound tire. These will fit perfectly on the 17x7.5 rims that you provide.

I ran the 225/50/16 and because of the gearing issues, I often lost time coming out of the corners.

Here is an interesting comparision:

Stratos, velolexus, and myself were comparing one course, our first event in the slush at oakland with that long ass straight.

Stratos was running 225/45/17, velolexus was running 215/50/16, and I was on my 225/50/16

At the end of the straight here is where we were in the gearing
  • I was barely at the redline
  • Stratos was in the redline but not on the revlimiter
  • Velolexus was bouncing off the revlimiter
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Old 01-04-2003, 12:52 PM   #8
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The WRX needs the OEM or smaller not to kill the gearing. Put 245/45s on your 16s and have fun.

- Steve

Hey Steve, have you done this yourself? This is similar to what I was thinking about, but I was wondering if 245 tires such as Yokohama AVS ES100 or Kumho 712 would fit on 16 inch rims. Also the car will ride lower and the speedometer, and odometer will read wrong, won't they?
Tom
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Old 01-04-2003, 03:55 PM   #9
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No, I compete in STS, no Rs allowed. However, many ppl competing at Nats last year had 245/45-16s mounted on the stock 6.5" wheels.

- Steve
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Old 01-04-2003, 05:03 PM   #10
thoughto
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I kind of blundered my way into this thread, not noticing it was on a motorsports forum. I guess for road driving 245/45-16 might be too radical - did anyone try something like this for day to day summer driving?
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Old 01-18-2003, 06:13 PM   #11
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Quote:
Originally posted by zzyzx
However, many ppl competing at Nats last year had 245/45-16s mounted on the stock 6.5" wheels.
Steve, did they mention any negative wear issues running such a wide tire on a narrow rim? Did they even care? Were they using spacers? Thanks.

Russ
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Old 01-18-2003, 11:24 PM   #12
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I would choose to carry more speed into, through and out of a corner rather than sacrificing the above for slightly greater acceleration out of same corner.
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Old 01-19-2003, 12:13 PM   #13
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Quote:
Steve, did they mention any negative wear issues running such a wide tire on a narrow rim? Did they even care?
No.

Quote:
Were they using spacers? Thanks.
I don't know.

Quote:
I would choose to carry more speed into, through and out of a corner rather than sacrificing the above for slightly greater acceleration out of same corner.


- Steve
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Old 01-20-2003, 09:47 AM   #14
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Quote:
However, many ppl competing at Nats last year had 245/45-16s mounted on the stock 6.5" wheels
Are you talking about suby's at the 02 nationals?? who was this?
Quote:
because it's definitely not recommended to put a 235 or 245/40 R17 tire on a 7.5" wheel. You should get a 17x8
There is absolutely no harm or anything fitting a 245 or 235 on a 7.5" wheel.

Kumho makes a 235/40/17 in the ecsta and a 245/45/16 in the victoracer. I would lean towards the 235 as that *would* provide a bit of a gearing advantage and wouldnt be much thinner then the 245/45

-Tom
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Old 01-29-2003, 01:50 AM   #15
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Quote:
Originally posted by ChrisW
Stratos was running 225/45/17, velolexus was running 215/50/16, and I was on my 225/50/16

At the end of the straight here is where we were in the gearing
  • I was barely at the redline
  • Stratos was in the redline but not on the revlimiter
  • Velolexus was bouncing off the revlimiter
Chris,
Do you think that your entry/exit/line were exactly the same coming into and out of the previous corner and straight? Are the cars otherwise exactly equally modd'ed? I'm not debating that the wheels can make the difference, but I think that there may be too many other variables for this to be a good comparison.

All,
Has anybody run wider than 225 on 16x7s for daily driving? I'm considering some slipstreams currently, and would like to go wider if possible, but obviously don't want to have issues daily driving with rubbing and what not.

Jay
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Old 01-29-2003, 02:56 AM   #16
Kostamojen
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I would go with the Slipstreams with 225 R-compounds. I would run slipstreams with falkens for ST-X if I could afford spare wheels/tires...
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Old 01-29-2003, 10:05 AM   #17
suby_dude
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Quote:
Originally posted by Kostamojen
I would go with the Slipstreams with 225 R-compounds. I would run slipstreams with falkens for ST-X if I could afford spare wheels/tires...
that's exactly what I ended up getting.

i put on the Kumho v700 on the slipstream.

I ran it this past weekend w/ my new wheels and my new NEW MODS
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Old 01-30-2003, 02:57 AM   #18
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Quote:
Originally posted by suby_dude


that's exactly what I ended up getting.

i put on the Kumho v700 on the slipstream.

I ran it this past weekend w/ my new wheels and my new NEW MODS
Hehe, can I borrow them for an autocross or two? LMAO!!!
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