grip vs. pickup dilema

suby_dude · 01-03-2003, 04:08 PM

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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rex n effect · 01-03-2003, 05:01 PM

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.

suby_dude · 01-03-2003, 05:03 PM

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.

rex n effect · 01-04-2003, 04:09 AM

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

zzyzx · 01-04-2003, 09:44 AM

The WRX needs the OEM or smaller not to kill the gearing. Put 245/45s on your 16s and have fun.

- Steve

HoRo1 · 01-04-2003, 09:45 AM

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.

ChrisW · 01-04-2003, 11:30 AM

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

thoughto · 01-04-2003, 12:52 PM

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

zzyzx · 01-04-2003, 03:55 PM

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

thoughto · 01-04-2003, 05:03 PM

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?

NightmareOnSubySt · 01-18-2003, 06:13 PM

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

HoRo1 · 01-18-2003, 11:24 PM

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.

zzyzx · 01-19-2003, 12:13 PM

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

trhoppe · 01-20-2003, 09:47 AM

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

thechickencow · 01-29-2003, 01:50 AM

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

Kostamojen · 01-29-2003, 02:56 AM

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...

suby_dude · 01-29-2003, 10:05 AM

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

Kostamojen · 01-30-2003, 02:57 AM

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!!!

01-03-2003, 04:08 PM	#1
suby_dude NASIOC Vendor Member#: 17397 Join Date: Apr 2002 Chapter/Region: BAIC Location: Fremont, CA Vehicle: many '02 Rex,'13 FRS WRB, White	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? * Registered users of the site do not see these ads.

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01-03-2003, 05:01 PM	#2
rex n effect Scooby Specialist Member#: 15289 Join Date: Feb 2002 Chapter/Region: SCIC Location: from santa barbara to Carp Vehicle: 02 wrx sedan PSM & grey '11 TDi daddywagon	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.

01-04-2003, 04:09 AM	#4
rex n effect Scooby Specialist Member#: 15289 Join Date: Feb 2002 Chapter/Region: SCIC Location: from santa barbara to Carp Vehicle: 02 wrx sedan PSM & grey '11 TDi daddywagon	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

01-04-2003, 09:44 AM	#5
zzyzx Scooby Specialist Member#: 815 Join Date: Jan 2000 Location: Florida Vehicle: 2013 Boss 302 White 2000 2.5 RS Coupe Silver	The WRX needs the OEM or smaller not to kill the gearing. Put 245/45s on your 16s and have fun. - Steve

01-04-2003, 09:45 AM	#6
HoRo1 Scooby Specialist Member#: 15618 Join Date: Feb 2002 Chapter/Region: International Location: Zhuhai, China	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.

01-04-2003, 12:52 PM	#8
thoughto Scooby Newbie Member#: 29145 Join Date: Nov 2002 Location: Woking, home of Mclaren Vehicle: 1998 Version 4 STI White, gold wheels	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

01-04-2003, 03:55 PM	#9
zzyzx Scooby Specialist Member#: 815 Join Date: Jan 2000 Location: Florida Vehicle: 2013 Boss 302 White 2000 2.5 RS Coupe Silver	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

01-04-2003, 05:03 PM	#10
thoughto Scooby Newbie Member#: 29145 Join Date: Nov 2002 Location: Woking, home of Mclaren Vehicle: 1998 Version 4 STI White, gold wheels	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?

01-18-2003, 11:24 PM	#12
HoRo1 Scooby Specialist Member#: 15618 Join Date: Feb 2002 Chapter/Region: International Location: Zhuhai, China	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.

01-29-2003, 02:56 AM	#16
Kostamojen Scooby Guru Member#: 2272 Join Date: Sep 2000 Chapter/Region: BAIC Location: haha XD Vehicle: 95 L AWD LIFTED!!! 1970 Subaru FF-1 Coupe	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...