Going from 19' to 20'?

hyunsoo1803 · 11-15-2011, 03:12 AM

What are the loss? (Economic, performance, etc?)

I'm doing this to fill out the huge wheel gap + ride height.

Any thoughts?

hyunsoo1803 · 11-15-2011, 03:15 AM

370Z JT · 11-15-2011, 03:41 AM

I regret going 20"s. Sure they look great, but it's a night and day diff VS the stock rays. Acceleration sucks!

haitech · 11-15-2011, 04:53 AM

Quote:

Originally Posted by 370Z JT

I regret going 20"s. Sure they look great, but it's a night and day diff VS the stock rays. Acceleration sucks!

Duly noted. I guess the lack of tire sidewall accounts for that. 19's and a drop it is.

Csquared · 11-15-2011, 06:01 AM

Does it really affect acceleration that bad?!

Quote:

Originally Posted by 370Z JT

I regret going 20"s. Sure they look great, but it's a night and day diff VS the stock rays. Acceleration sucks!

Chan Chee Hoe · 11-15-2011, 06:44 AM

Quote:

Originally Posted by Csquared

Does it really affect acceleration that bad?!

Depends on how heavy the 20 inches are.!

RavSpec · 11-15-2011, 10:05 AM

19" usually are heavier, so u will loss some fuel economy there. 19" tires are more expensive as well.

Advantage, probably look.

370Z JT · 11-15-2011, 12:28 PM

I noticed the diff immediately, and the dyno confirmed it.

298whp w/ ART pipes, M370, Gemini exhaust, OEM Rays @ 77 degrees.

291whp w/ above plus Stillen G3, Uprev tune, 20" MS1 @ 95 degrees.

Tuner speculated I lost 15-20 hp due to the wheels.

hyunsoo1803 · 11-16-2011, 04:45 AM

I would hate to see the decrease in performance.

Thanks guys !

sinceday1 · 11-16-2011, 07:57 AM

Some 20"s are lighter and stronger than that of 19" rays

6MT · 11-16-2011, 10:43 AM

Quote:

Originally Posted by 370Z JT

I regret going 20"s. Sure they look great, but it's a night and day diff VS the stock rays. Acceleration sucks!

Whaaaa? How did you make that assumption?

kenchan · 11-16-2011, 11:47 AM

if i was getting 20's it would be solely for dressup so 3pcs wheels and probably looking at 28-30lbs each.

that's a significant bump in unsprung weight. i wouldn't do it on my Z.

TongMan · 12-08-2011, 09:53 AM

What tire sizes do you guys recommend for 20" rims for fronts and rears? Lets just say width is 9" and 10".

Super Red Z · 12-08-2011, 11:25 PM

Quote:

Originally Posted by TongMan

What tire sizes do you guys recommend for 20" rims for fronts and rears? Lets just say width is 9" and 10".

If you want to fill the gap.I have 245/35/20 for front and 275/35/20 for rear.I happy with the result but it will made rear wheel look a little small. I recommend black or gunmetal wheels color....No drop or you can run285/30/20.I love the look of 20"

11-15-2011, 03:12 AM	#1 (permalink)
hyunsoo1803 Track Member Join Date: Mar 2010 Location: Canada Posts: 556 Drives: 370z Rep Power: 16	Going from 19' to 20'? What are the loss? (Economic, performance, etc?) I'm doing this to fill out the huge wheel gap + ride height. Any thoughts? __________________ \|Stillen\|KW\|Volks\|Evo-R\|Bridgestone\|Hotchikis\|Project Kics\|Southbend\|Berk\|Status\|Innovate\|Nismo\|Greddy\|

11-15-2011, 03:41 AM	#3 (permalink)
370Z JT A True Z Fanatic Join Date: Jan 2010 Location: United States Posts: 2,905 Drives: 370Z PW 7AT Rep Power: 378	I regret going 20"s. Sure they look great, but it's a night and day diff VS the stock rays. Acceleration sucks! __________________ Click for My Journal Top Secret \| EVO-R \| Fujimura Auto \| Shine Auto \| Seibon \| MRWorks \| Swift \| SPC \| SSR \| UpRev \| Project Kics \| NST \| Titek \| Eibach \| Nismo \| Whiteline \| Quaife \| Invidia \| Fly1 \| CF Element \| Carbon Signal

11-15-2011, 10:05 AM	#7 (permalink)
RavSpec A True Z Fanatic Join Date: Jan 2011 Location: NY Posts: 2,532 Drives: 370Z Rep Power: 19	19" usually are heavier, so u will loss some fuel economy there. 19" tires are more expensive as well. Advantage, probably look. __________________ RavSpec - Your Custom JDM Wheel Source. W: www.RavSpec.com . E: sales@ravspec.com . T: 631-586-3520 WORK Wheels, RAYS, ADVAN, WEDS, Super Star Financing Option: www.ravspec.com/finance

11-15-2011, 12:28 PM	#8 (permalink)
370Z JT A True Z Fanatic Join Date: Jan 2010 Location: United States Posts: 2,905 Drives: 370Z PW 7AT Rep Power: 378	I noticed the diff immediately, and the dyno confirmed it. 298whp w/ ART pipes, M370, Gemini exhaust, OEM Rays @ 77 degrees. 291whp w/ above plus Stillen G3, Uprev tune, 20" MS1 @ 95 degrees. Tuner speculated I lost 15-20 hp due to the wheels. __________________ Click for My Journal Top Secret \| EVO-R \| Fujimura Auto \| Shine Auto \| Seibon \| MRWorks \| Swift \| SPC \| SSR \| UpRev \| Project Kics \| NST \| Titek \| Eibach \| Nismo \| Whiteline \| Quaife \| Invidia \| Fly1 \| CF Element \| Carbon Signal

11-16-2011, 04:45 AM	#9 (permalink)
hyunsoo1803 Track Member Join Date: Mar 2010 Location: Canada Posts: 556 Drives: 370z Rep Power: 16	I would hate to see the decrease in performance. Thanks guys ! __________________ \|Stillen\|KW\|Volks\|Evo-R\|Bridgestone\|Hotchikis\|Project Kics\|Southbend\|Berk\|Status\|Innovate\|Nismo\|Greddy\|

11-16-2011, 07:57 AM	#10 (permalink)
sinceday1 Track Member Join Date: Oct 2009 Location: Canada Posts: 514 Drives: 09 Nissan 370Z M6 Rep Power: 17	Some 20"s are lighter and stronger than that of 19" rays

11-16-2011, 11:47 AM	#12 (permalink)
kenchan A True Z Fanatic Join Date: Aug 2009 Location: N/A Posts: 76,801 Drives: N/A Rep Power: 141521	if i was getting 20's it would be solely for dressup so 3pcs wheels and probably looking at 28-30lbs each. that's a significant bump in unsprung weight. i wouldn't do it on my Z.

12-08-2011, 09:53 AM	#13 (permalink)
TongMan A True Z Fanatic Join Date: Feb 2010 Location: NorCal Posts: 1,297 Drives: 2013 Nissan GTR Rep Power: 715	What tire sizes do you guys recommend for 20" rims for fronts and rears? Lets just say width is 9" and 10".