Dose's Sometimes DIY and Pay Someone Home & Boat Improvement Thread

[r32-25t]

Tried the Toyo R888Rs?

[Dose Pipe Sutututu]

52 minutes ago, r32-25t said:

Tried the Toyo R888Rs?

Not specifically the revamp Toyos.

In the past I've used Nitto NT01s, which were essentially the same compound as R888 with a different pattern (that's what the internetz said, so just be facts). I did like the NT01, progressive fade, didn't go from grip to 0 grip in a split second.

If you look at the serious street/track guys, most are either on Cup 2, A052, A050, AD09, CR-S or AR-1.

 

[GTSBoy]

I'm on the AD09, strictly on the street. They are a very nice tyre, have done ~16k km and are near the end, might make it to 20. They are, in my opinion, very much just a street tyre. I wouldn't expect them to be equivalent to some of the others in your list on the track. Although I'd be pleasantly willing to be surprised. My memory of the AD08Rs is vague enough, due to the passage of time, that I shouldn't try to compare them, but I feel as if the AD09 is not quite as "sporty" as the AD08R was.

[Komdotkom]

I've run most of the semis which are available and sadly you can pretty much rank them by price. 

Fast and spendy = Z221, A050, DZ03G

Ok and mid range price = R888, V70A, A052

I don't really rate the AR-1 because it's not cheap enough for the performance level offered. Yes, they're much cheaper than A050 but V70A can be had just as cheap and is a much faster and more predictable tyre.

[Dose Pipe Sutututu]

Been a while since I've heard anyone mention Kumho tyres.

It's like they've fallen off the radar in terms of street/track tyres.

I still want to get below 1m50s on the RS-4 tyres at SMSP, just because lol.

Even doing a 1m52s lap, going into T1 was sketchy af.

[Kinkstaah]

6 hours ago, Komdotkom said:

I've run most of the semis which are available and sadly you can pretty much rank them by price. 

Fast and spendy = Z221, A050, DZ03G

Ok and mid range price = R888, V70A, A052

I don't really rate the AR-1 because it's not cheap enough for the performance level offered. Yes, they're much cheaper than A050 but V70A can be had just as cheap and is a much faster and more predictable tyre.

Based on this comment I went googling. A052's in the sizes I want are certainly not cheap, but I couldn't find anything in the V70A anywhere. How much do they run/where do they get sourced from?

From what I know (nothing but internet searches and reviews etc) the R888 has pretty much fallen off from anyone's actual use, and the AO52 is the king of "road legal" rubber. Nobody is driving around on their daily for Z221, AO050, DZ03G.

At that point, for purely track only tyres - Why not buy actual slicks? Why does nobody actually do that anyway?

[Duncan]

8 hours ago, Kinkstaah said:

Based on this comment I went googling. A052's in the sizes I want are certainly not cheap, but I couldn't find anything in the V70A anywhere. How much do they run/where do they get sourced from?

From what I know (nothing but internet searches and reviews etc) the R888 has pretty much fallen off from anyone's actual use, and the AO52 is the king of "road legal" rubber. Nobody is driving around on their daily for Z221, AO050, DZ03G.

At that point, for purely track only tyres - Why not buy actual slicks? Why does nobody actually do that anyway?

100% all of those tyres you named are road legal, depending on compound and size I've used them all for rally use. Of course they are noisy and wear fast but I'm assuming you'd only drive to the track and back on them, not in peak hour.

Kumho V70a are a bit mixed, I liked them but the commodores were having blow outs in low profiles (35 and lower) so the series moved off them. Also they love sky high pressures, like 46 or even higher, to work best which is strange but not a problem

A052 and Z221 are the quickest if money (and size) is no object. The dunlops used to be good but DZ03G were a step down for some reason.

[No Crust Racing]

On 12/7/2024 at 11:59 AM, Dose Pipe Sutututu said:

It's great, fantastic bit of kit for the novice like me.

One thing it doesn't do, as @No Crust Racing pointed out before, is capture CANbus data. Would be great to get additional data from the car to overlay.

I'll download the video from my 56s for a laugh soon.

The fact it has basically no data input at all is a bit of a miss. I reckon V2 will have something. They could sell a proprietary dash that pairs etc and it would be a fantastic setup. 

 

[No Crust Racing]

21 hours ago, Dose Pipe Sutututu said:

I think depending how much left over cash I have after all the kids and wife (daycare, extra curriculum activities, toys, and whatever they drain from my account, wife's spending, etc.) I might go for the Advan A052 OR if the bank account says no, then Nankang CR-S.

 

Do you have a 2nd set of rims or do these have to be street driven also? 

[Komdotkom]

8 hours ago, Kinkstaah said:

Based on this comment I went googling. A052's in the sizes I want are certainly not cheap, but I couldn't find anything in the V70A anywhere. How much do they run/where do they get sourced from?

From what I know (nothing but internet searches and reviews etc) the R888 has pretty much fallen off from anyone's actual use, and the AO52 is the king of "road legal" rubber. Nobody is driving around on their daily for Z221, AO050, DZ03G.

At that point, for purely track only tyres - Why not buy actual slicks? Why does nobody actually do that anyway?

https://www.kumho.com.au/tyres/racing/

 

Generally people don't run slicks because most of them don't heat cycle very well, and they aren't legal for many types of racing.

Track tyres and road tyres are never the same thing and I can't think of a tyre which does both well. A second set of rims with track rubber is the simplest solution; in my experience aside from seat time quality tyres are the best way to lower lap times.

 

[No Crust Racing]

I would also add to the above that setting up a car for slicks is a bigger change to the car over all, lots of people have wacked used slicks on and gone slower, the heat cycling issue and the suspension setup being the 2 biggest issues. 

Edited Sunday at 08:24 PM by No Crust Racing

[Dose Pipe Sutututu]

1 hour ago, No Crust Racing said:

Do you have a 2nd set of rims or do these have to be street driven also? 

Not anymore, sold my second set due to space constraints and usage.

So a requirement for me is some street driving (car isn't a daily, lucky to be driven twice a month) but with a track focus.

[No Crust Racing]

MMM ok, 

I see a bit of praise for RE003s, but CR-S sounding like a better option, seems Nankang wants those to replace the AR-1

[Kinkstaah]

2 hours ago, No Crust Racing said:

I would also add to the above that setting up a car for slicks is a bigger change to the car over all, lots of people have wacked used slicks on and gone slower, the heat cycling issue and the suspension setup being the 2 biggest issues. 

Well yeah - I know the tyres quoted above are technically road legal, but nobody shows up to a hill run or a cruise on them, because they burn too quick and they GENERALLY exist as the "track only tyre" for an otherwise road/track hybrid car. I suppose they could fit the bill to drive *to* the track on them instead of changing tyres there on the day.

I suppose it makes sense when it comes to slicks. Otherwise you'd just drive to the track and change tyres. And if you're gonna do that I don't know why nobody picks up a slick for those uses, even for regular road car track days/HPDE use non-competition but fun stuff.

I just always find it a bit funny that people will say "but street car bro on street tyres" even if said street tyres would never really be driven on the street. May as well have a slick and just enjoy the full potential on the track.

*pending suspension or grip related roll overs or god knows what which may/may not apply.

Nankang CRS (v2) will be my choice too in some faraway era where my car exists and goes to a track again, by which time all the options may have been updated :p. Seem to be on par with the A052 everywhere when tested back to back except half the price, and wear slower.

Goes to show how fast tyre tech has come, the newest product generally is the bestererest as it comes out.

[No Crust Racing]

Lots of tyres were quoted above, plenty of people have shown up to cruises on many of them. 

Winton sprints allows full slicks and semi's in my category (C1, race car up to 2L), and semi's dominate the class. 

You've got to set a car up properly around slicks, semi's are much more forgiving and the setup can be more versatile for a multi-use car. 

I've got some used slicks fitted to the wheels already for the Silvia so we'll see how I go when the time comes.

2 sets of wheels is almost always the answer for a weekender. 

[GTSBoy]

Meh, I've always used 140-200TW tyres on the R32 as a daily. A set of tyres every 8-15km is acceptable to me. 8k perhaps at the less acceptable end!

[Dose Pipe Sutututu]

And my some what great lap, well great in a sense I beat my old time  

Enjoy the dose.

 

[No Crust Racing]

GET IN THERE LEWIS

[Duncan]

Yeah you need separate rims and proper semis. Buy something cheap in the right size and offset. Anything except top line semis you are wasting your time if you are chasing lap times.

Re using the on the street, it is totally possible with semis, just dumb/expensive if you are daily driving it. We drive to tassie and back, do targa (racing and touring) and home again on 6x semis (1.5 sets); that is about 3,000klm road + 1,000klm racing

[Dose Pipe Sutututu]

Just now, Duncan said:

Anything except top line semis you are wasting your time if you are chasing lap times.

I'm just chasing a having a good time rather than achieving a good lap time.

Old place I had 2x sets of wheels, just no where to put the 2nd set now living in my Sydney shoebox called a home lol.

The happy medium for me is a set of Advan A052. The S15 I tuned you see that did that 1m45s around SMSP was on a set of Advan A052. I think he's recently got it down to 1m43s with Nankang CR-S. Owner also just has a single set of wheels, although he does drive it to work once a week. Works for him and should be more than enough for me.

(Noting I'm Asian, I'm not a great driver and our DNA has wired us propel either Toyota Camrys or Tesla Shitboxes). 

On the topic of Teslas, I see a few ex Camry owners move onto Teslas, I've also noticed heaps of terrible Tesla drivers. I know correlation does not equal causation but I'm led to believe Tesla owners are just new generation Camry owners.