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PostPosted: Tue Sep 04, 2012 8:20 pm 
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I'm having a really hard time finding tires, my stock ones are 175/65 r14, I need a set for my r15 6j rims. I've calculated that I need either 175/55, 185/55 or 195/50. The first 2 are rather rare and expensive, the 195 is a lot cheaper and there's more availability, but I'm not sure if they'll rub and how much it will affect fuel economy.

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PostPosted: Tue Sep 04, 2012 10:37 pm 
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Location: brainerd MN
On my 93 Gt I've installed 185/60R-14 (Only slightly easier to find then your 175/65R-14 but almost the exact same ride height.)on my 89 GTI I went with 185/65R-14 .(very easy to find, at least here in the U.S.) the latter increases ride height about 6/10 of an inch (10mm), and throws the speedo off about 2-3 MPH (4kph) both are wider so I get light rubbing when the tires are at maximum turn-in, But neither rubs the fender, and both can be found easier the the now un-obtainium 175/65R-14.
For 15 rims, I would google the stock size tire that was optionally available on a top of the line esteem, and go with that , as I believe the ride height was almost perfect, and little/no rub. I hope this helps, Jonathan

Full Disclosure: I am A Tire dealer, So I Can Only recommend the factory specified size :thwack: :thwack: (What I use personally on my own vehicles is a different matter :twisted: :twisted: )

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PostPosted: Wed Sep 05, 2012 11:47 am 
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the 175/65 r14 are quite common here, as well as 195/50 r15, but the 175/55 r15 and 185/55 r15 are rare. I'm more concerned about fuel economy at this point, as I got the rims from a guy who had them on a gti with 195/50 r15 tires and they were perfect. If 195/50 r15 won't have a big impact on fuel economy compared to my 175/65 r14, then I'm getting a set of 195, if not I have to keep looking for 175 or 185.

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90 Suzuki Swift 1.6 GLX 4WD


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PostPosted: Thu Sep 06, 2012 8:07 pm 
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Anyone?

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PostPosted: Thu Sep 06, 2012 8:27 pm 
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I just bought a 94 gt with 195/50/15 it does not rub but it is at stock height I am afraid if i was to use lowering springs it would it looks very close to the rear bumper. i also have a 91 gt with 185/65/14 way more clearance now my 91 feels like the gas milage feels a better but then again my 91 a/c does not work so i have not driven my 94 without the a/c yet . but eventhen my 91 gets a hole week of work same place and does last7 day on 3/4 of tank :huh:


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PostPosted: Thu Sep 06, 2012 11:36 pm 
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Location: castlerock Wa,
I have 195/50r15, 6.5in wide wheels with a 42mm offset. the car is sitting on coilover's and when i hit a large bump or pothole it will touch the bumpstops just a little, it is as low as u can go on the stock style struts. the only rubbing i get is at full lock, and it really is not that bad. for fuel economy they WILL hurt it by about 5mpg in the city and maybe 1or 2 depending if your goin 80mph or 60 on the freeway. if u dont want any rubbing your best bet is to use a wheel that is 36ish to42mm of offset and no wider than 6.5in, and a set of 195/45r15.

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PostPosted: Fri Sep 07, 2012 10:33 am 
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Mine are 6" wide and 37 offset, will it still rub with 195/50 r15?

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PostPosted: Fri Sep 07, 2012 3:43 pm 
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Location: The Netherlands
you need 195 45 15 :)

(here maybe one of hundred drive 195 50 in stead of 195 45)

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PostPosted: Fri Sep 07, 2012 4:25 pm 
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Might be for a gti, but my stock tires are 175/65 r14, and 195/50 r15 is much closer than 45. 195/45 r15 are even harder to find :|

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PostPosted: Fri Sep 07, 2012 6:50 pm 
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Location: texas houston
195/50/15 will not rub at stock height! if that is what you are asking, my car has all the inner fender plastic. Gas mileage not that good . If gas is what you want to save you can stay with 14 inch rim. and find some 185/60/14


Last edited by RP91gt on Fri Aug 28, 2015 8:46 pm, edited 1 time in total.

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PostPosted: Fri Sep 07, 2012 7:40 pm 
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I'm mostly concerned with gas mileage. I already have a set of 15" rims, the 14" will have winter tires on them. But is the the drop in mileage more because of the bigger rim or wider tire?

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99 Honda CB600F Hornet
90 Suzuki Swift 1.6 GLX 4WD


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PostPosted: Sat Sep 08, 2012 10:49 am 
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G-sus wrote:
Might be for a gti, but my stock tires are 175/65 r14, and 195/50 r15 is much closer than 45. 195/45 r15 are even harder to find :|

ik i see..think i have heard this before on teamswift about the 45 tires. in europe (netherlands) 195 45 15 is very much used and maybe easier to buy then the 50 serie

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PostPosted: Sat Sep 08, 2012 3:20 pm 
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Tom_swift wrote:
G-sus wrote:
Might be for a gti, but my stock tires are 175/65 r14, and 195/50 r15 is much closer than 45. 195/45 r15 are even harder to find :|

ik i see..think i have heard this before on teamswift about the 45 tires. in europe (netherlands) 195 45 15 is very much used and maybe easier to buy then the 50 serie


I thought it was pretty much the same across Europe, Lithuania isn't that far away from Netherlands and 50 series are much more popular here :)
On another note, I found some 175/60 r15 that are pretty darn close to my stock tire sire, should work great on a 6j rim :D

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I ride a Honda, but I drive a Suzuki.

99 Honda CB600F Hornet
90 Suzuki Swift 1.6 GLX 4WD


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PostPosted: Sat Sep 08, 2012 10:11 pm 
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Location: castlerock Wa,
the fuel millage go's down from the rolling resistance and the weight of the tire and wheel combo.

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PostPosted: Sat Sep 08, 2012 10:31 pm 
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EngineWhisperer wrote:
the fuel millage go's down from the rolling resistance and the weight of the tire and wheel combo.


Good point, I will have to compare weight of both sets when I get some tires.

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90 Suzuki Swift 1.6 GLX 4WD


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PostPosted: Sun Sep 09, 2012 3:03 am 
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Location: The Netherlands
G-sus wrote:
Tom_swift wrote:
G-sus wrote:
Might be for a gti, but my stock tires are 175/65 r14, and 195/50 r15 is much closer than 45. 195/45 r15 are even harder to find :|

ik i see..think i have heard this before on teamswift about the 45 tires. in europe (netherlands) 195 45 15 is very much used and maybe easier to buy then the 50 serie


I thought it was pretty much the same across Europe, Lithuania isn't that far away from Netherlands and 50 series are much more popular here :)
On another note, I found some 175/60 r15 that are pretty darn close to my stock tire sire, should work great on a 6j rim :D


maybe roads in netherlands are little better :lol:
really thousands swift drive 195 45 15 and 2 is drving the 50. on bigfer cars more 50 also the 45 series cost you 25 more for each tire. i think i keep stock 175 60 14 this otherwise i would have 195 45 14 ( just one tire available) with
yellow konies and apex springs

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PostPosted: Thu Aug 27, 2015 12:00 pm 
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Location: Winnipeg
Old post I know, just figured I would share some info for other researchers. I have ran all tire combinations possible on the Metros and Swifts and have figured out that my extreme end fuel numbers are as follows with these specified tires.

155/80/R13 4.9L/100km or 48mpg
205/40/R16 5.9L/100km or 39 MPG

Everything else has been linearly in the middle of these numbers, have run 185's 175's and 195's etc.

These numbers take into account odo correction when needed as well. Basically, as long as the rolling diameter is similar or accounted for in your odo measurements, then use this formula to predict your new mileage, using US MPG.

New Mileage = Old Mileage - ((NTW-OTD) * 0.18)

Where NTW = New Tread Width and OTW = Old Tread Width and both are measured in mm as per standard tire measurements.

Formula works both ways going up or down in size. Just intended as an estimate. Seems to be accurate (within a few %) from my testing over the last 15 years :)

Hope that helps,

Steve

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