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Can You Fit "19" On A Gtst R33?

nizmokid
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MANWHORE Grand Master

MANWHORE

Posted
Posted
can you fit "19" on a GTST R33?

.......well can you with out the wheels scraping or rubbing when on full lock????

19" isn't the problem, as the rolling diametre should remain the same. In fact, some members of the forumn even have 20 " wheels keeping almost the same diametre.

I have never seen 21" wheels on a skyline, but that would have to be near the max.

Offset and width are the main causes of scraping

Al Grand Master

Al

Posted
Posted
19" isn't the problem, as the rolling diametre should remain the same. In fact, some members of the forumn even have 20 " wheels keeping almost the same diametre.

I have never seen 21" wheels on a skyline, but that would have to be near the max.

Offset and width are the main causes of scraping

Are you sure you know what you are talking about?

I have 19's and the rolling diametre is different, the speedo reading also gets affected (lukily for mine, it became more accurate, as it was reading to fast with the std wheels)

20's would probably NOT fit on a gts-t, as the 19's barely miss the upper control arm joint on the front wheels.

dezz Grand Master

dezz

Posted
Posted
Are you sure you know what you are talking about?

I have 19's and the rolling diametre is different,  the speedo reading also gets affected (lukily for mine, it became more accurate, as it was reading to fast with the std wheels)

20's would probably NOT fit on a gts-t, as the 19's barely miss the upper control arm joint on the front wheels.

I think he does know what he's talking about...

as rim size increases, tyre profile decreases.

legally, the size of the added rim/tyre package must be within 15mm of the largest factory option for that car..

a lot of people think that legally you can just go up 2" from the largest factory but its all about the final size with the new tyre/rim package.

you could probably get the 19's on it, but guards might need to be lipped to stop them scraping at full lock

Al Grand Master

Al

Posted
Posted
I think he does know what he's talking about...

as rim size increases, tyre profile decreases.

legally, the size of the added rim/tyre package must be within 15mm of the largest factory option for that car..

a lot of people think that legally you can just go up 2" from the largest factory but its all about the final size with the new tyre/rim package.

you could probably get the 19's on it, but guards might need to be lipped to stop them scraping at full lock

SO what profile do you have on YOUR 19's??

My rims are 19x8 all round. My tyre profile is 245/35/19, and this has a 1inch bigger rolling diametre than std wheels. So to put his (and your) theories into math; after doing a few simple calculation, you will need to have the following profile to have the same rolling diametre: 245/25/19.

Are tyres available with a 245/25/19 profile? And who will want to pay hundreds more dollars for such a specific profile with very hard "ride" characteristics?

So once again i ask: Do you, or the other person, have experience with wheels and tyres? If not, do you really know what you are talkin about?

I have no "work experience" with wheels and tyres, but have had my 19's for about 2.5yrs and did alot of research and asked, the experts/fitters, alot of questions.

dezz Grand Master

dezz

Posted
Posted
SO what profile do you have on YOUR 19's??

My rims are 19x8 all round.  My tyre profile is 245/35/19, and this has a 1inch bigger rolling diametre than std wheels.  So to put his (and your) theories into math; after doing a few simple calculation, you will need to have the following profile to have the same rolling diametre: 245/25/19.

Are tyres available with a 245/25/19 profile?  And who will want to pay hundreds more dollars for such a specific profile with very hard "ride" characteristics?

So once again i ask: Do you, or the other person, have experience with wheels and tyres?  If not, do you really know what you are talkin about?

I have no "work experience" with wheels and tyres, but have had my 19's for about 2.5yrs and did alot of research and asked, the experts/fitters, alot of questions.

well going by what you've said, you're rims are un roadworthy on your car.

have you seen tyres that look like rubber bands ? they may not have the best ride or whatever, but if someone wants their car to be roadworthy, with massive rims (in theory a BA XR8 can have 20's and a BA GT can have 21's) then they're gonna need LOW LOW LOW profile rubber bands

Al Grand Master

Al

Posted
Posted
well going by what you've said, you're rims are un roadworthy on your car.

have you seen tyres that look like rubber bands ? they may not have the best ride or whatever, but if someone wants their car to be roadworthy, with massive rims (in theory a BA XR8 can have 20's and a BA GT can have 21's) then they're gonna need LOW LOW LOW profile rubber bands

1/ I know :)

2/ Are such tyres legal? And do ppl actually drive on these low, low, low profile tyres?

3/ We are not talking about FORDS, the topic specifically states R33, keep to the topic :)

dezz Grand Master

dezz

Posted
Posted
1/ I know  :)

2/ Are such tyres legal?  And do ppl actually drive on these low, low, low profile tyres?

3/ We are not talking about FORDS, the topic specifically states R33, keep to the topic  :)

yeah i know its about skylines mate, i was just making a comment...

they'd be legal because of how wide they are, which makes the load rating higher even though there is basically no profile to the tyre...

i think 25's can only be found in like 295's....profile that low looks so hot

Ronin 09 Grand Master

Ronin 09

Posted
Posted
they'd be legal because of how wide they are, which makes the load rating higher even though there is basically no profile to the tyre...

Actually the wider the tyre, the lower the load rating - the perpendicular forces acting on the sidewalls, from the tyre face in contact with the road, will be greater the wider the tyre. As a result the tyre design demands a much higher stiffness sidewall for wide tyres. Therfore, generally the crap ride from low profile tyres is from two-fold effects - less sidewall profile to absorb shock, and stiffer sidewalls themselves.

Secondly, the lower the profile, the lower the load rating due to the same reason as above - there is more force being exherted by the tyre trying to negate the perpendicular force drawing the sidewall toward the centre of the tyre, versus foce trying to hold the tyre (and car) up in an axial direction. You will find that there are only a few 265/35 (GTR) size tyres that will meet the Nissan placard load requirements - ask Jamezilla who was defected for insufficient load rating on his GTR.

Lastly, legally you can only increase rim width by one inch (in Vic anyway). That would mean that the approx max increase in tyre width you can legally go is ~40mm, eg. for a R32GTR with factory 8" wide rims, the tyre is 225/50/16, you can go to a 9" rim, say R34GTR rim in 18x9, which is generally recommended to have no wider a tyre than a 265/35/18 tyre.

Al Grand Master

Al

Posted
Posted

You mentioned that you can find 25 profile on a 295 wide tyre.

Do you know that the sidewall profile is a percentage of the width and not an actual measurement? ie:The wider the tyre the lower the profile to acheive the same rolling diametre.

It's nice to say "yep they'll fit mate, you can even get bigger" but make sure that you have experience or knowledge in the advice you give.

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