Jump to content
SAU Community

Recommended Posts

I got myself a pair of R33 GTR wheels for my GTST with 245/45/17 on them.

They're snow/winter tyres since they came from Japan.

I like the size since the tyre diameter is 2cm more than the standard 205/55/16

It looks good I find and gives good riding comfort.

(have a lot of potholes and speed bumps here)

In your experience is 245/45 a good choice for your cars or gives 255/40 more control?

http://www.tacomaworld.com/forum/tirecalc.php?tires=245-45r17-255-40r17

Edited by Torques

Size won't cause wobbley-ness, probably something wrong with balance or the tyre itself. I like the run the widest tyres possible, but since you have a GTS-t, I'd look at the guard to tyre clearance. Slightly taller sidewall would help with ride, so I'd stick with 245.

Difference between 245 and 255 isn't much, the tyre design/construction/compound would make a bigger difference.

Um. Wat?

20mm extra diameter is not a good thing. Hello speedo error. Hello taller gearing.

For all that.....there's nothing wrong with 245/45 as a tyre size in itself. It is neither going to be much better or much worse than a 255/40 in any real way. You'd be hard pressed to feel the difference in grip, firmness, sidewall flex, traction....anything. The 255 would be the better choice just for being closer to the right size (rolling diameter), that's all.

If you leave them on there 'til they wear out, and you want to go for wider tyres that still retain some of the extra sidewall height, you could probably squeeze a 265/40 onto 9" rims on that car. Gains you a bit extra rubber on the road and half the extra sidewall you have now.

Alright,

Thanks .. I was just thinking since 255 and 40 profile has smaller side-walls it would make a a real world difference

(just by using the link I provided in my first post)

I have the 245 on right now and clearance wise it seems ok

Um. Wat?

20mm extra diameter is not a good thing. Hello speedo error. Hello taller gearing.

For all that.....there's nothing wrong with 245/45 as a tyre size in itself. It is neither going to be much better or much worse than a 255/40 in any real way. You'd be hard pressed to feel the difference in grip, firmness, sidewall flex, traction....anything. The 255 would be the better choice just for being closer to the right size (rolling diameter), that's all.

If you leave them on there 'til they wear out, and you want to go for wider tyres that still retain some of the extra sidewall height, you could probably squeeze a 265/40 onto 9" rims on that car. Gains you a bit extra rubber on the road and half the extra sidewall you have now.

Hi!

Speedo error seems no too bad.

(that's compared to the standard GTSTs)

Look here:

http://www.tacomaworld.com/forum/tirecalc.php?tires=205-55r16-245-45r17

And 3% longer gearing seems to be an option,

Here's how it looks at the moment:

post-33912-0-66675300-1402147787_thumb.jpg

Edited by Torques

I run 265's on the back on 9" rim. I'd like to give a comparison to other size tyres but the last time i ran different size tyres they were 32 GTR tires, about 225 wide and rather old. Also car was stock and I ditched them about 4 months after buying the car

If you want to wait till you wear the current tyres out, fair enough. But go the 265's if you wont run into any problems with rubbing. I think mine are 265/35's but cant say 100% and too lazt to walk 4m to the car :)

Also, winter tyres won't be so good in summer eh.

Haha ..

Actually these tyres are very soft and traction is horrible if not scary!

Makes for a good show though ;)

That's why I need to change them but they're okay for getting an idea about sizes / clearance

(since the whole debate)

Edited by Torques

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Ahhh, I need the whole head unit. I definitely needed to roll back through and review your setup, ha ha! Neat setup they have going on. I just need a full double din head unit. But I want good and responsive. I might have to review what the likes of pioneer have out these days.
    • Ok so after much research and talking with knowledgeable people I've got my turbo conversion done and it's all running great other than 1 small issue.  Car has remained auto with the na auto and tcm, I've used a stagea ecu with. NIstune board and everything is great other than my gear selection on the dash. It illuminates park, reverse, neutral, 3rd and 2nd. But nothing drive or what gear your in when you pop it into tiptronic.  I'm sure there is may e 1 wire in the ecu plug I need to move to rectify this. Dose anyone here have any ideas?   Cheers guys
    • Sorry I haven't been following all the detail, so you may have tried this. Does it idle with the tiniest bit of throttle you can add? You've mentioned the IACV, does it have an AAC valve and have you adjusted it at all (ie, screw the idle adjust screw all the way in, then back it out a couple of turns until idle is stable)?
    • My bad, I unplugged the one underlined in red instead of yellow before. With the car started, after unplugging the IACV (the one underlined in yellow), it idled at around 400/500 for 3 seconds before stalling. Attempting to start the car without the IACV will not start the car.   It does stutter and sputter for around 5 seconds before dying. However, immediately after starting it, you can already hear some slight sputters from the exhaust.   It won't start with the AFM unplugged. If it is when the car has already started, it stalls in a few seconds.   Yesterday, I did take some logs using Nistune of 3 scenarios. Car idling till it stalls Car idling and unplugging the IACV Car idling and removing the AFM I also have some previous logs of when the Car is idling till it stalls and when driving and it cuts. I am not really knowledgeable enough to understand what to look for. After every test, car idles rougher and rougher, until I have to stop. It will be fine the day after.
    • There is no difference between a 17x8 and an 18x8. The total diameter of the tyre needs to remain +/- the same (so you don't mess up the gearing, speedo reading, and clearance when turning front wheels..... so you just need to use a lower profile tyre on th 18 than you do on the 17. /rocket surgery.
×
×
  • Create New...