Light Rotational Inertia Vs. More Grip - Subaru Impreza GC8 & RS Forum & Community: RS25.com

jdmflcl · 07-02-2009, 07:16 PM

So with the advent of the "hellaflush" movement, there has been a big push in affordable "wide" wheels...however alot of these come at a cost...mainly weight since alot of these are cast. I'm wondering what your thoughts on the above "qualities" of wheel setups are as in pertaining to a swapped GC in terms of overall handling/behavior.

Basically setup #1

16x7 Desmond Regamaster 11.5 lbs a piece
225/50/16 Star Specs @ 16

Vs

Setup #2

17x9 Rota DPT @ 18.5 Lbs a piece
255/40/17 Star Specs @ 20 a piece

Do you think a car like the GC that while relatively light, still is somewhat front heavy benefits more from having lighter wheels and less rotating mass like a n/a honda or miata...or benefits more on the flipside because of having more power then the 2 given examples, from having wider tires.

Just wondering what your thoughts on this are...I'm looking at either the 16x7 Regamaster, 16x8 slipstream or buying some form of 17x9/17x8.5 Rotas. This is more a general "Swapped GC suspension/handling tuning q" so i'll leave the rest of my setup out of it.

**shaggie** · 07-02-2009, 07:22 PM

OMG you're back.

jdmflcl · 07-02-2009, 07:36 PM

Omg... your favorite punching bag has come back!

**Yeiran** · 07-02-2009, 07:52 PM

aftermarket wheels are a waste of money unless you're racing competitively or need them due to bigger brakes. only wheels i'd spend $ on are 2004 sti bbs.

jdmflcl · 07-02-2009, 08:56 PM

well considering my car is currently without wheels and has LGT front brakes coming from japan, i might need an upgrade

**012.5RS** · 07-03-2009, 05:36 AM

les rotational mass and unsprung weight FTW! Setup #1 and WOW!!! 11.5LBS each? I thought my 16x7 12.2LBS volk te37 v6 sti wheels were light. Pick up a set of 225/50R16 Azenis RT615's awesome tires.

07-02-2009, 07:16 PM	#1 (permalink)
jdmflcl 2.2L Turbo Car: 99' Version 2 STI Coupe Fav Mod: STI Sports Bumper, EJ20G My: Subaru Parts My: Subaru Blog Join Date: Oct 2008 Location: Colorado Trader Rating: (1) Posts: 2,134	Light Rotational Inertia Vs. More Grip So with the advent of the "hellaflush" movement, there has been a big push in affordable "wide" wheels...however alot of these come at a cost...mainly weight since alot of these are cast. I'm wondering what your thoughts on the above "qualities" of wheel setups are as in pertaining to a swapped GC in terms of overall handling/behavior. Basically setup #1 16x7 Desmond Regamaster 11.5 lbs a piece 225/50/16 Star Specs @ 16 Vs Setup #2 17x9 Rota DPT @ 18.5 Lbs a piece 255/40/17 Star Specs @ 20 a piece Do you think a car like the GC that while relatively light, still is somewhat front heavy benefits more from having lighter wheels and less rotating mass like a n/a honda or miata...or benefits more on the flipside because of having more power then the 2 given examples, from having wider tires. Just wondering what your thoughts on this are...I'm looking at either the 16x7 Regamaster, 16x8 slipstream or buying some form of 17x9/17x8.5 Rotas. This is more a general "Swapped GC suspension/handling tuning q" so i'll leave the rest of my setup out of it. __________________ I go into vtec at the precise moment my D16's powerband kicks in....Never -LongGrain

07-02-2009, 07:22 PM	#2 (permalink)
shaggie Premium Member Car: '00 STM RS Coupe Fav Mod: Russian, JDM CF seatbelts My: Subaru Parts Join Date: Nov 2003 Location: CT Trader Rating: (1) Posts: 1,675	OMG you're back. __________________ Nice truck, sorry about the small penis.

07-02-2009, 07:36 PM	#3 (permalink)
jdmflcl 2.2L Turbo Car: 99' Version 2 STI Coupe Fav Mod: STI Sports Bumper, EJ20G My: Subaru Parts My: Subaru Blog Join Date: Oct 2008 Location: Colorado Trader Rating: (1) Posts: 2,134	Omg... your favorite punching bag has come back! __________________ I go into vtec at the precise moment my D16's powerband kicks in....Never -LongGrain

07-02-2009, 08:56 PM	#5 (permalink)
jdmflcl 2.2L Turbo Car: 99' Version 2 STI Coupe Fav Mod: STI Sports Bumper, EJ20G My: Subaru Parts My: Subaru Blog Join Date: Oct 2008 Location: Colorado Trader Rating: (1) Posts: 2,134	well considering my car is currently without wheels and has LGT front brakes coming from japan, i might need an upgrade __________________ I go into vtec at the precise moment my D16's powerband kicks in....Never -LongGrain

07-03-2009, 05:36 AM	#6 (permalink)
012.5RS Premium Member Car: WRB 02 WRX Wagon Fav Mod: TBE My: Subaru Parts My: Subaru Blog Join Date: Sep 2005 Location: Warminster, PA Trader Rating: (14) Posts: 1,790	les rotational mass and unsprung weight FTW! Setup #1 and WOW!!! 11.5LBS each? I thought my 16x7 12.2LBS volk te37 v6 sti wheels were light. Pick up a set of 225/50R16 Azenis RT615's awesome tires. __________________ Feared By Off Ramps Everywhere... Last edited by 012.5RS; 07-03-2009 at 05:47 AM..

07-02-2009, 07:52 PM	#4 (permalink)
Yeiran Anti-GD Coalition Car: MY01 Impreza 2.5RS Fav Mod: 2.0L My: Subaru Parts My: Subaru Blog Join Date: Apr 2006 Location: Orlando, FL Trader Rating: (3) Posts: 537	aftermarket wheels are a waste of money unless you're racing competitively or need them due to bigger brakes. only wheels i'd spend $ on are 2004 sti bbs.

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