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New BFG Tire. G-force Rival

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26 replies to this topic

#1
ALPHA Performance

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Recently BFG invited our president and accomplished driver Martin Musial out to NOLA for some one on one testing of their new performance tire: http://www.onehotlap...t-thickens.html

 

bfg_gforce_rival4r_ci2_l.jpg

 

Here is a quote from Martin on the day:

 

Hi guys, this is Martin Musial from AMS.  I'm going to chime in here as I was at the tire release event for the BFG Rival.   We were down at NOLA motorsports park and I got to drive the following cars;  Subaru STi (short autocross), BMW E46 M3 (longer high speed autocross), Mazda MX-5 cup car (skid pad), Mustang FR500S (road course).  each car had a twin (or triplet in some cases) fitted with the leading competitors tires. Some of the tires were Hankook RS-3's, Azenis RT-615K, Toyo R1R's.  We drove the BFG Rival equipped car first and then hoped into the next car and so forth, and then finally jumping back into the BFG tire car for a final comparison.  We also had some car that were equipped with the BFG R1S's (the sticky R1), which I raced on last year in SCCA and won a lot of races on.

The tire has very good turn-in and response, almost on par with the BFG R1S DOT race tire.   This became very apparent on the short autocross, where response and grip are critical.  The BFG Rival was worlds better than the Toyo R1R and a noticeable improvement from the Hankook RS-3's. What was very amazing was the wear at the end of the day.  All tires started out fresh that morning, and after running through about 40 people (and the BFG getting 50% more runs on it than the other tires)  they dismounted the fronts and put them on display.  The BFG rival had very little wear, honestly I was expecting much more.  The Hankook RS-3 showed some wear but the middle unsupported ribs where actually shredding.  The Toyo R1R with all the unsupported tread blocks were totally destroyed, I mean they were done.

Same thing for the long autocross in the M3's (which I love driving BTW, great drivers car).  The BFG rival had more grip, better response, and better recovery.  I will say that at the limit they might break away a little faster than the RS-3 but they recover faster also, which is very nice if you overdrive the car.  

On the skid pad they had us hold steady lines and we had a G meter in every car.  The BFG rival would pull a consistent 1.14-1.16G's in the MX-5, while the DOT R compound BFG R1S would do 1.20-1.22 G's.  I was expecting a bigger difference between the two, especially since the R1S is a sticky road race compound. The baseline tire was the BFG Sport comp 2, which I'm not familiar with but looks like a good high performance tire.  It would pull around 1.05-1.06 g's.

The road course was a little tough comparison because we had no idea what configuration we were running and we had no track map or video to look at.  We only got a lap and a half on each tire so it took me the first session on the BFG's to figure out the track.  There is a nice section of high speed esses where I was able to consistently run the BFG Rival vs. the Falked 615's and again, the BFG tire had better response and better grip.

We were told that on a wet surface this tire will outperform all other non R compound street legal tires, but in standing water conditions it will have a higher tendency to hydroplane because of it's design.

A far as the R888 goes, If it were my car I would go for the Rival for an all around bad ass street/track tire.  The R888 is very loud in my opinion for a daily and I'm not sure it would have much better ultimate grip than the BGF Rival.  It looks like they are going for square setup sizes, but I would like to see one more size option so we don't have to run front fenders to accommodate the larger tires and maintain the same rolling diameter front to rear.

-Martin Musial


Ty Curtin

ty@amsperformance.com 

 

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#2
Polivoks

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Good find!

 

They come in two sizes, but unfortunately the diameters are nearly 1" apart so you would need to run a square setup.

 

http://www.tirerack....l=g-Force Rival

 

100W SL 200 AA A 1764 lbs. 30 lbs. 9.5-11"   27.9" OD

110W XL 200 AA A 2337 lbs. 34 lbs. 10.5-12.5"   28.7" OD

 

One is SL and one is XL too - not sure how much difference that makes, but with the GT-R weight it seems the XL would be better?

 

315s square with wide fenders would be sweet though.

 

It would be nice if they had similar OD to the R888s so you could run 285/315.



#3
ALPHA Performance

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More sizes are on the way but yeah I think that 315 square or even 335 square would be AWESOME.

 

Eric


Ty Curtin

ty@amsperformance.com 

 

World's First Nissan R35 GT-R in the 9's, 8's 7's AND THE 6's!!!!!!!

Alpha Queen - 6.87 @ 216 mph

Alpha G 6.93 @ 196 | Alpha 22 (Prime Cuts) 7.06 @ 206 | Alpha 22 (CMC) 7.32 @ 184 | Alpha Omega 7.48 @ 193 | Alpha W (a10x) 7.56 @ 189 | Alpha X (Curtis) 7.66 @ 187 
 

 


#4
GTRG2

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I hope they make a 285/315 !!! 


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#5
ian.r

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any more updates on these? anyone else try them?

#6
icarus

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Very interesting, nice to see a race driver put them through some comparison testing.

 

Compared to a Michelin Pilot Super Sport (what I consider the "gold standard" of a street/track compromise tire):

BFG Rival has a 200 treadwear rating and a load rating of  1764 lbs

MPSS has a 300 treadwear rating and a load rating of 1984 lbs

 

So, the MPSS might be a bit more up to the "punishment" a 3800+ lb car as fast as GT-R can dish out (?)  Maybe the BFG Rival would ultimately set a faster dry laptime though.

 

If the BFG Rival is close to as good in the wet as the Michelin Pilot Super Sport, I would be very tempted to try them.


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#7
shawnhayes

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I have a set in my garage to go on after the R888's wear out, but don't have them on yet.

 

Shawn


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#8
HiBoost

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What size Shawn?  All 285s?  The 315's are quite a bit taller than stock, has anybody gone with that tall of a tire on an R35?


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-Jeff

#9
shawnhayes

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What size Shawn?  All 285s?  The 315's are quite a bit taller than stock, has anybody gone with that tall of a tire on an R35?

 

I got all 285's.  That seems to be a good size.

 

Shawn



#10
icarus

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TSM used to run 315/35/20 MPSS square on 20x11 rims, usind Password JDM fenders up front
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#11
7racer

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TSM used to run 315/35/20 MPSS square on 20x11 rims, usind Password JDM fenders up front

 

I am currently working out trying to do this with the stock fenders...will post a new thread when I get further along....it's pretty cool, involves 3d printing.


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In7anity!!


#12
icarus

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I am currently working out trying to do this with the stock fenders...will post a new thread when I get further along....it's pretty cool, involves 3d printing.

 

Definitely let us know!  I don't know how many hours I've wasted contemplating square setups, always challenged by the space available in front.


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#13
7racer

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Definitely let us know!  I don't know how many hours I've wasted contemplating square setups, always challenged by the space available in front.

 

I was going to wait as it's preliminary...but the phone call was exciting.  I'll start a thread and fill it up as I go.....as long as people know it's a work in progress.


In7anity!!


#14
K-MAN

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I would be in to test the 335 square setup. MPSS is the Gold Standard. I have been running those for the past 3 years at all my races/HPDE. I would love to test another setup/tire.



#15
7racer

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Definitely let us know!  I don't know how many hours I've wasted contemplating square setups, always challenged by the space available in front.

 

thread started here

http://www.gtrherita...fenders-square/


In7anity!!


#16
shawnhayes

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MPSS is the Gold Standard. 

 

Bleeahhhh...

 

Me no like.

 

OEM Dunlops were better on the track, or so I thought.  Too much lateral movement.

 

Shawn



#17
icarus

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This past Saturday I was at Oregon Raceway Park, with brisk temperatures (40-50F) running OEM rims and 285/20 Michelin Pilot Super Sport setup with about 2 years, 10k miles, and approx 15 track sessions.  I could not believe how much grip they had.  I could run a 30 minute session with no overheating; seems like the cool weather was great for them.

 

I passed everything.  EVERYTHING.  I was running in the open passing race group, all other cars were full race cars on R compounds. 

 

MPSS is a good tire.


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#18
shawnhayes

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This past Saturday I was at Oregon Raceway Park, with brisk temperatures (40-50F) running OEM rims and 285/20 Michelin Pilot Super Sport setup with about 2 years, 10k miles, and approx 15 track sessions. I could not believe how much grip they had. I could run a 30 minute session with no overheating; seems like the cool weather was great for them.

I passed everything. EVERYTHING. I was running in the open passing race group, all other cars were full race cars on R compounds.

MPSS is a good tire.


Personal taste man. It performs well, but feels "funny". Like Madonna - like Dennis Rodman had been there already.

Shawn
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#19
Tim

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Hahaaaa Shawn!
 

 


#20
7racer

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Personal taste man. It performs well, but feels "funny". Like Madonna - like Dennis Rodman had been there already.

Shawn

 

that just made me cough a chocolate chip cookie thru my nose!  LOL 


In7anity!!





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