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What Tire For R33 Gts25t?

Lithium

By Lithium,
in Motorsport Discussion & Builds

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Lithium Grand Master

Lithium

Posted
Posted

Hi all :P

When I finally got my car out to the drags at the end of last season here with a few gremlins still bugging me - the car only managed a 13.3 @ 112mph. At the time, there were other issues anyway so I didn't bother with addressing the lack of grip part of the whole thing but now I have the others all sorted and drag season is coming again :P

The car realistically should be running at least a couple more mph next time I race but the 112mph bit should give a rough idea of the power level I am making. What tires running similar power levels are people using? I have looked around a bit and in my searchings so far on here people have been very unspecific about tires they have used to achieve times.

I am looking at Hoosier Quick Time Pro DOT 26/9.5/16s and maybe to put on stock R33 GTS25t rims at this stage. Has anyone tried these, or have any other combinations they'd recommend? What kind of improvement have you had from going from normal road tires?

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Lithium Grand Master

Lithium

Posted
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MT ET Streets. 255/XX/16 on 300zx or R32 GTR wheels.

/thread

Thanks for the input :P Just to clarify, are you aware there are two different "ET Street" drag tire types from MT? One is the DOT dated bias ply "ET Streets" and then the stere are the "street legal" ET Street Radials. Given you have provided a "255/..." type measurement I could assume you could mean the 255/50/16 ET Street Radials?

Please appreciate that I want to make sure I am hearing it from someone who isn't just regurgitating what they have heard or read half paying attention somewhere along the line - I know people who have bought tires from advise given by someone just blurting out specs like that and have ended up worse off for it and would like to be sure I am getting the right thing.

JAS-25T Grand Master

JAS-25T

Posted
Posted

Sorry mate, hahhaha

I have raced my old R33 GTS-T on them, they were borrowed from another R33 GTS-t that was doing 11's RNMENC. Actually, almost everyone I know that drag races in any street class races on them, Including the one and only 2RISMO.

The exact measurements I couldn't tell you but I'm pretty sure they are 255/50's

Here is a thread - talks about sizes, simple search. If you check out the car that is in the first post by bezerk32 Those are the exact tyres and wheels I used. There is some good discussion from a few users, sellers and drag racing whores.

Personally, I would take in what bezerk32 has to say as he has ALOT of experince in Street class R33 GTS-t drag racing.

Here is another thread with some more info on them.

Lithium Grand Master

Lithium

Posted
  • Author
Posted
Oh - and here is another thread

http://www.skylinesaustralia.com/forums/Mi...di-t141522.html

It's a group buy that WAS on offer but NO LONGER is i believe. You might find some discussion on it there too.

Gahh I clearly didn't make the search work right. The times I did it I only found things like "MickyT ET Streets" or the such. Thanks man :P

Lithium Grand Master

Lithium

Posted
  • Author
Posted
Oh, and if you need a pair, just let me know.

Cheers! Thanks, that was my initial preferred option but for some reason people warded me off them - but I trust you guys more :starwars:

Can you get them for a decent price, 2rismo? I am NZ based at the moment and they're not easy/cost effective to buy here. At the moment my best option looks like this:

http://store.summitracing.com/egnsearch.as...k=KeywordSearch

2rismo Grand Master

2rismo

Posted
Posted

That's $484NZD for the tyres and a massive amount in shipping. Surely there's a local speed shop who'll sell them to you for $300-ish. Even low $300's each will be cheaper. Plus Summit are out of stock until the end of the month so you'd be waiting quite a while.

Lithium Grand Master

Lithium

Posted
  • Author
Posted
That's $484NZD for the tyres and a massive amount in shipping. Surely there's a local speed shop who'll sell them to you for $300-ish. Even low $300's each will be cheaper. Plus Summit are out of stock until the end of the month so you'd be waiting quite a while.

You can easily spend >$1kNZ on a pair of tires like that. The local shops I have spoken to don't supply them, a couple have indicated they can try and sort it out but the cost would basically be them buying from an overseas company and charging me for everything + their cut.

I've only ever seen one set of drag radials used here too, most people go the DOT slicks at around 26x10.5x16 which would be a bit more than what I would think I'd need? http://www.trademe.co.nz/Trade-Me-Motors/C...n-169832480.htm

Also, will I need to upgrade from my heavy duty single plate clutch to a twin plate for 255x50x16 MTs to not destroy the poor thing?

2rismo Grand Master

2rismo

Posted
Posted
You can easily spend >$1kNZ on a pair of tires like that. The local shops I have spoken to don't supply them, a couple have indicated they can try and sort it out but the cost would basically be them buying from an overseas company and charging me for everything + their cut.

I've only ever seen one set of drag radials used here too, most people go the DOT slicks at around 26x10.5x16 which would be a bit more than what I would think I'd need? http://www.trademe.co.nz/Trade-Me-Motors/C...n-169832480.htm

Also, will I need to upgrade from my heavy duty single plate clutch to a twin plate for 255x50x16 MTs to not destroy the poor thing?

A good single plate is more than enough for most applications. What is power level / engine setup?

I have asked the question of my supplier about shipping to NZ for you. Will let you know the answer.

It would make sense to slot a Jim Berry single in with the tyres to save on shipping. That's what I'd do.

JAS-25T Grand Master

JAS-25T

Posted
Posted
A good single plate is more than enough for most applications. What is power level / engine setup?

I have asked the question of my supplier about shipping to NZ for you. Will let you know the answer.

It would make sense to slot a Jim Berry single in with the tyres to save on shipping. That's what I'd do.

280kw - in his sig.

BTW Lithium, it's Tyres not Tires.

AUS > USA

Lithium Grand Master

Lithium

Posted
  • Author
Posted (edited)
280kw - in his sig. BTW Lithium, it's Tyres not Tires. AUS > USA

LOL yeah I know its tyres (its that in NZ too), I'm not always too sure about how you do things in Oz and get used to using tires on overseas forums. Wanna chup brue?

In terms of decent single plate mine has been holding on fine for ages, I don't think I'd worry about getting a clutch until I reach that point - there are plenty decent one available. The 280kw may not be the same as 280kw on the dynos you are used to, may be closer to 250kw at a guess - whatever a .82a/r GT30R running around 15psi on a stock RB25 would make normally.

2Rismo - thanks for that. Where did the reference to Greenlane speed shop come from? Do you have reason to think they stock Mickey Thompsons?

Edited by Lithium
2rismo Grand Master

2rismo

Posted
Posted
LOL yeah I know its tyres (its that in NZ too), I'm not always too sure about how you do things in Oz and get used to using tires on overseas forums. Wanna chup brue?

In terms of decent single plate mine has been holding on fine for ages, I don't think I'd worry about getting a clutch until I reach that point - there are plenty decent one available. The 280kw may not be the same as 280kw on the dynos you are used to, may be closer to 250kw at a guess - whatever a .82a/r GT30R running around 15psi on a stock RB25 would make normally.

2Rismo - thanks for that. Where did the reference to Greenlane speed shop come from? Do you have reason to think they stock Mickey Thompsons?

Yeah, 250kW sounds about right. If your clutch is fine then leave it but you will find that these tyres will test it to the limit. If it's found wanting, buy a new one. Easy :P

I just googled NZ speed shops and they came up. It was a pretty dismal result though. You'd think that NZ doesn't have a speed parts industry.

Lithium Grand Master

Lithium

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  • Author
Posted
Yeah, 250kW sounds about right. If your clutch is fine then leave it but you will find that these tyres will test it to the limit. If it's found wanting, buy a new one. Easy :google:

I just googled NZ speed shops and they came up. It was a pretty dismal result though. You'd think that NZ doesn't have a speed parts industry.

Yeah its pretty shit here for getting parts, my turbo, injectors etc had to be ordered from overseas - if I ordered them through a shop then it would have taken the same effort and amount of time but a bit more money. Not for everything of course, but its not necessarily the easiest. Being one of the more remote countries in the world with a small population basically means its not worth stocking up heavily on parts.

Clutches I *can* get pretty easily and cheaply so the way I see it, if it breaks I can decide whether to get a single or a twin plate. Thanks heaps for your help - good having people who have been there done that!

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