Tire size and wheel combo question..... - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

xNotoriousGQx · 11-08-2001, 03:06 PM

I need help on tire size and wheel combo.  Can I fit a
245/45/zr17 on a 17x8 wheel with +35 offset? What's the maximum tire size (wideness) I could put on
without  having the wheel looking small?  ANother thing,
Will the wheel clear the 300zx non turbo aluminum calipers?  Thank you very much.  This forum and the people in here really helps a lot. Thanks everyone!

*LanceS13* · 11-08-2001, 04:04 PM

For 8" rims, I wouldn't go any wider than 235.  The 245 will work, but you may get bad handling characteristics from excessive sidewall flex.  The 245/45's are way too tall anyway...get a 35 for a little better gearing or 40 for about normal height.  But I would stick with a 235/40/17 on the 8" rim.  If you want to go 245, I'd suggest upping rim width to 8.5".  Not an expert on offset, but the +35 sounds about right.  And I'm pretty sure 17's will clear the calipers since the Z car came with 16's stock.

*DSC* · 11-08-2001, 07:45 PM

Numbers, Numbers everywhere <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/smile.gif" border="0" valign="absmiddle" alt=':)'> Ok I got the 8" wide part.  What does all that other stuff mean?  like offset and the other dimentions.  Thanks

Olay180 · 11-08-2001, 10:02 PM

Yeah, I agree with Lance, check out toyo tires website www.toyo.com they have a chart on what size tires fit what size (width) rim. But 235/40/17 sounds right. And DSC, check out www.tirerack.com they'll answer your questions about offset and such. Take it easy guys

11-08-2001, 11:43 PM

235/40/17

235 = width of the tire in centimeters
40 = length of the sidewall, percent of the width, so 40% of 235 cm
17 = 17" wheel

I think that's what those numbers are. <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/tounge.gif" border="0" valign="absmiddle" alt=':p'> Correct if I'm wrong please.

*LanceS13* · 11-09-2001, 01:46 AM

almost danio...
235= width of tire in millimeters
235cm is over 7 ft....now that's a contact patch...:biggrin:

11-09-2001, 10:30 AM

I personally prefer to run 235/45-17 on my 17x8. 235/40-17 is closer to stock diameter on the S14, but since the speedometer reads off the tranny.

konkman · 11-09-2001, 10:53 AM

I know the topic is nitrousgq's rim size, but I'm running 16" by 7" rims.  I'm on fat ass 55 series rubber.  I want the best performance out of my next tire.  So should I go for 205/45R16's or 205/50R16's Z rated (both).

*LanceS13* · 11-09-2001, 02:16 PM

konkman, the 45 series will be too small, causing more wheel gap and inaccurate speedo readings....go with the 205/50

11-08-2001, 03:06 PM	#1
xNotoriousGQx Zilvia Junkie Join Date: Oct 2001 Location: NYC Posts: 447 Trader Rating: (0) Feedback Score: 0 reviews	I need help on tire size and wheel combo.  Can I fit a 245/45/zr17 on a 17x8 wheel with +35 offset? What's the maximum tire size (wideness) I could put on without  having the wheel looking small?  ANother thing, Will the wheel clear the 300zx non turbo aluminum calipers?  Thank you very much.  This forum and the people in here really helps a lot. Thanks everyone!

11-08-2001, 04:04 PM	#2
LanceS13 AutoX Junkie Join Date: Jun 2001 Location: MS Age: 42 Posts: 2,044 Trader Rating: (0) Feedback Score: 0 reviews	For 8" rims, I wouldn't go any wider than 235.  The 245 will work, but you may get bad handling characteristics from excessive sidewall flex.  The 245/45's are way too tall anyway...get a 35 for a little better gearing or 40 for about normal height.  But I would stick with a 235/40/17 on the 8" rim.  If you want to go 245, I'd suggest upping rim width to 8.5".  Not an expert on offset, but the +35 sounds about right.  And I'm pretty sure 17's will clear the calipers since the Z car came with 16's stock.

11-08-2001, 07:45 PM	#3
DSC New Title Join Date: Aug 2001 Location: VA Posts: 3,454 Trader Rating: (0) Feedback Score: 0 reviews	Numbers, Numbers everywhere <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/smile.gif" border="0" valign="absmiddle" alt=':)'> Ok I got the 8" wide part.  What does all that other stuff mean?  like offset and the other dimentions.  Thanks

11-08-2001, 10:02 PM	#4
Olay180 Leaky Injector Join Date: Oct 2001 Location: Holland, MI Age: 42 Posts: 116 Trader Rating: (0) Feedback Score: 0 reviews	Yeah, I agree with Lance, check out toyo tires website www.toyo.com they have a chart on what size tires fit what size (width) rim. But 235/40/17 sounds right. And DSC, check out www.tirerack.com they'll answer your questions about offset and such. Take it easy guys

11-08-2001, 11:43 PM	#5
Guest Posts: n/a	235/40/17 235 = width of the tire in centimeters 40 = length of the sidewall, percent of the width, so 40% of 235 cm 17 = 17" wheel I think that's what those numbers are. <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/tounge.gif" border="0" valign="absmiddle" alt=':p'> Correct if I'm wrong please.

11-09-2001, 01:46 AM	#6
LanceS13 AutoX Junkie Join Date: Jun 2001 Location: MS Age: 42 Posts: 2,044 Trader Rating: (0) Feedback Score: 0 reviews	almost danio... 235= width of tire in millimeters 235cm is over 7 ft....now that's a contact patch...:biggrin:

11-09-2001, 10:30 AM	#7
Guest Posts: n/a	I personally prefer to run 235/45-17 on my 17x8. 235/40-17 is closer to stock diameter on the S14, but since the speedometer reads off the tranny.

11-09-2001, 10:53 AM	#8
konkman Zilvia Junkie Join Date: Aug 2001 Posts: 534 Trader Rating: (0) Feedback Score: 0 reviews	I know the topic is nitrousgq's rim size, but I'm running 16" by 7" rims.  I'm on fat ass 55 series rubber.  I want the best performance out of my next tire.  So should I go for 205/45R16's or 205/50R16's Z rated (both).

11-09-2001, 02:16 PM	#9
LanceS13 AutoX Junkie Join Date: Jun 2001 Location: MS Age: 42 Posts: 2,044 Trader Rating: (0) Feedback Score: 0 reviews	konkman, the 45 series will be too small, causing more wheel gap and inaccurate speedo readings....go with the 205/50