Darren

I think that this is too cold, but you may be talking about the temps after coming back into the pits, etc, after the tires cooled down a little.

There is some great info on the R1 here:

http://www.tirerack.com/images/tires...ce_R1_care.pdf

For a 2600-3000 lb car (with driver) they are saying 36-42 hot. On the 993 that I was working on, 39-40 seemed to be the right hot temp.

The Grassroots test was the R6, tested against the Nitto, R1, and Hankook. The Hoosier was LAST PLACE and the R1 was first.

986

GRM did 2 tests.

Last month's test was R6 vs R1 at AX.

This months test covers both AX and lapping. (albeit a short lap. 10 laps = 6 minutes?) They pitted the A6 against the R1.

Bull

So, they tested the R6 at autoX...then the A6 for lapping??????

986

Well they tested the R6 at a twisty 35-38 second "lap", which is more analogous to AX.

They test A6 in both situations. They mentioned in the article that a number of road racers (TT?) are using A6 at SCCA and NASA Nationals.

PPo

I really wished they tested all the tires on more of a road course setting... the more interesting thing is that they tested 6 tires I believe... The R6 was the worst out of all of them... I was shocked!

I would like to see more evidence on the BFG R1, but everything I have read and/or heard has been very encouraging so far.

To be fair, the GRM article certainly gives props to the R6 as they recognize that it is a widely used and succesfull tire... Hmmmm...

-Patrick

007DT

Gents:

I bit.. Just purchsed a set for my 993 and I'll let you know the results. AutoX this weekend and DE @ road Atlanta in 2 weeks

DJF1

what sizes are you going to run?

KRA993tt

Just wondering if anyone has an up to date info on these tires. I need a new set of tires and am thinking about giving these a try. I'm interested in those that have raced these vs. Hoosiers primarily in hot ambient temperatures. Any input is appreciated.

Mark in Baltimore

Keith,

Hope all is well. I tried the R1's at last year's Summit race and really liked them. They were good enough for me to get two, lucky first-in-class wins against some 964 cups which I believe were shod with Hoosiers. I did not find that they got greasy at all. I will say that I only have about six heat cycles worth of experience with them.

KRA993tt

Thanks Mark, yes all is well.

That is what I was wondering about. The Hoosiers just seem to have a pretty narrow sweet spot and get awfully slick when it's hot. It can't hurt to give them a try I guess.

Are you doing the Potomac VIR DE?

Mark in Baltimore

Hi, Keith,

It's a week before the NJMP club race and too close in time. This will be one more year that I have not been to VIR since the last club race there.

KRA993tt

Gotcha, good luck at NJMP.

renvagn

I just saw this thread and am 35 heat cycles into a set. I am haveing cupping issues accross the three tread sections and rubber seperation on the sidewall, which we just noticed yesterday when I fliped the wheels on the rims. So far I am getting zero assistance with BFG despite having there dealer contact them with the findings. I will keep you posted.

As far as performance, they stick pretty good and have predictable break away. In comparable tire test against R-6's at SP using the same car, I have been told they are 2 seconds slower. Now the question is will they last substantialy longer than R-6's (which are't bad IMO) as who cares about 2 seconds for a non race situation.

2002M3Drew

I ran a set of these between a set of Hoosier A6s and R6s (long story) last season. Here are my thoughts about the R1:

1. They need to be scrubbed in and heat cycled before serious use. Right out of the box they are greasy (probably from their mold release coating)

2. On the track, they perform remarkably like a Hoosier R6. They get up to operating temps and remain very grippy and predictable in track use for 25-40 minute intervals.

3. In autox, they are also like an R6. (An R6 is a decent enough autocross tire, by the way, and outlast the A6 by a good margin.) The A6 Hoosier is far grippier than an R1 BFG in autox. Like the R6 Hoosier, the R1 in autox needs a run or two to heat up before being very sticky. The A6 is sticky right out of the box.

4. One very intereting note about the BFGs in autocross is that they have a very extreme break away at the limit. Most of the modern R-Comps for autox such as the V710 and the A6 are much more moderate and predictable. The BFG, on the other hand, feels like it falls off a table when you wander over the limit, often leading to a spin. Interestingly enough, they do not have this trait in track use, where they feel very predictable at and ovver the limit. I think it has to do with the extreme slip angles, transitions, and heat involved with autox.

5. The R1s seem to wear extremely well, but then again, so do the R6 Hoosiers. I don't think they provided any useful lifespan advantage over the Hoosiers.

6. They are not good wet tires for autox or track. The Toyos are the kings of this area, both the R888 and the RA-1.

Would I buy again? I can't say that I would not if the price was right. For the same money, though, I'd stick with R6s for a track tire. All of my experiences are in the same size tires (225/245 16) on my 911SC.

Mark in Baltimore

Tire Rack says that the R1's are supposed to last longer than R6's and, as a result, will not be as fast. Although I have not run back-to-back tests with the R1's and R6's, my qualifying time at last year's Summit race (just before the infamous "repave") was 1.24.46 (D class pole sitter Bob DiMarco did a 1.24.052 on, I believe, R6's). I'm an okay driver and was thrilled to be second in class and not too far from DiMarco's 964 cup car, especially in my allegedly uncompetitive 993, so I would have to say that the R1's are hopefully not as slow as two seconds. Others drivers here have experienced very, very good lap times with the R1's, too. Who knows? Maybe I would have turned a 1.23 if I had run Hoosiers? Maybe not . . .

http://www.pca.org/clubrace/2007_res...Qualifying.htm