Tire options for track days

[bellwilliam]

Sometimes Discount Tire throws crazy sales on Nittos, and I can't not buy them...

Discounttire Ebay now (till end of the month) has $100 off $400. NT01 is $413 each, with $100 instant off, that comes to $313 each..... not sure if you can use the instant off 4 times though.

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[DirtRoadTrip]

Discounttire Ebay now (till end of the month) has $100 off $400. NT01 is $413 each, with $100 instant off, that comes to $313 each..... not sure if you can use the instant off 4 times though.

I got my last set for $200 per tire from DTD during their July 4 sale. I should have bought more sets then. Oh well...

 

[Stuntman]

Stuntman, my first thought was more camber but having about 3neg now, I think it is more low tire pressure and going to hard too fast. I think I may try a stiffer rear sway bar and have hot pressures over 40 as Hoosier recommends.

Tire pressures and camber should be dictated by the results from a PROBE type tire pyrometer, not a blanket statement from a tire manufacturer.

A 2,000lb mid-engine car with SLA suspension running on 305s will have far different camber and tire pressure needs than a 4,000lb front engine car with struts running on 245s.

 

[1stGT350]

I totally agree about a statement from Hoosier but since I can't get the needed data now I need to find a good starting point where I will not ruin another set of tires in first session. Last time I ran a front engine car it weighed 2700 and was better balanced. The GT350 was very fast last weekend with much more potential. I was able to go faster than my 15, GT3 already it will be a contender for TTOD when sorted.

 

[teamsketch]

Discounttire Ebay now (till end of the month) has $100 off $400. NT01 is $413 each, with $100 instant off, that comes to $313 each..... not sure if you can use the instant off 4 times though.

I just used this last week. If you check out as a guest and use your paypal account linked to a credit card, you can use it 4 times. I just got my set of 305/30/19's for $1252...not too shabby.

They just arrived yesterday and will get them mounted this week. If I didn't have an office move this weekend I would totally be down at the Ridge this weekend to try them out.

 

[bellwilliam]

Who is going to be the first to run the Goodyear Supercar 3R? This is the OEM tire on the Camaro ZL1-1LE. They're well priced...

https://www.tirerack.com/tires/tires.jsp?tireMake=Goodyear&tireModel=Eagle+F1+Supercar+3R&partnum=03YR9F1S3R

Just ran those last weekend at WSIR, Big Willow. Had 305/325 on stock GT350 wheels (bought from CSL !!). Mine is a bone stock GT350r with front camber plates (-3.5”) and the narrower wheels.

IMO, 3R is a stickier fire than SC2. At least in the 50-60F weather. But they do wear quite a it faster than SC2. So The price advantage cancels out imo.

 

[1stGT350]

What times were you running and do you have any comparison with other tires. What camber plates were you using that you got 3.5-?

 

[bellwilliam]

ran a 1:27.50. my first ever track session with this car.



I was chasing my buddy (Emilio of 949racing, a top national caliber driver) around. He was a slightly slower (he did a 1:28.0 in the same session) in the corners.

my car: stock GT350R with 305/325 3R on GT350 wheels, camber plate (set at -3.5)

Emilio: GT350 with r-replica spoiler and splitter, FP spring, camber bolts, R-replica aluminum wheels on 305/305 Walmart special SC2 (ones that was on sale couple of weeks ago. His is basically an R with smaller rear tire.

I had wider rear tires, we both had same camber settings (close). I was on narrower wheels. Not very scientific test, as Stuntman will say. But 3R is faster imo, but it also wore a lot faster (another long story which I will leave out for now)......

the prettier one is mine (middle)

 

[1stGT350]

Very impressive times, I usually only get there when its hot anymore. I talked to Emilio at Buttonwillow in November we were there for the PCA event the following days, He was driving very well there. At some point I will be at the same event as you guys with the GT350 and leave the GT3.

 

[bellwilliam]

949racing did a 1:52.0 at Buttonwillow 13CW during the GTA event. it was on 3R tires 305/325.

 

[Etchhead]

Those Walmart specials didn’t hold up very long. I went to get a set and price already ran up.

 

[MulhollandMonster]

That's a good time. Looks like you can wring some more out of the GT350...What do you think is possible for a Big Willow lap time with the 350?

 

[bellwilliam]

That's a good time. Looks like you can wring some more out of the GT350...What do you think is possible for a Big Willow lap time with the 350?

me ? mine is a gray GT350R. 949racing car is orange.
26s is definitely doable with better line through T9 and more camber on driver side (-3.5 isn't enough, it needs a little more than -4).

I see you are not local, probably don't know the track that well.. T9 is a decreasing radius turn. minimum speed in the GT350R was 98MPH.... trick is to ride the outside at entry. problem is if you go off, you are GUARANTEED to hit a concrete wall. So I always take the chicken line and leave ~1/2 second on the table.

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