225/45/15 BFG g-Force Rival
#141
I went to my first HPDE this weekend at sebring with 225/45/15 Rivals on 15x8 6UL's and a completely stock MSM suspension. I did the entire first day (4 Sessions) with 32 psi hot. The tires were gripping but it felt like the sidewall was flexing a bit in hard cornering. Under the suggestion of my instructor on the second day I upped the pressure to 36 psi hot. The tires felt much better on turn in and the grip was noticeably better.
I am no expert and do not have lap times to prove any of this but both me and my very experienced instructor noticed the difference in how much faster I was able to push the car after the change.
I am no expert and do not have lap times to prove any of this but both me and my very experienced instructor noticed the difference in how much faster I was able to push the car after the change.
#142
Try to get your hot temps down to 32psig and see how it feels. I'm quite happy in the same range as Slider for autocross, which is nice because he's also my competition, although I was a no show to yesterday's event due to the morning rain and other priorities. I think the lowest I ran was 28psig cold, then maintain them around 30-32 hot with 1psig higher in the front for my setup.
I went to my first HPDE this weekend at sebring with 225/45/15 Rivals on 15x8 6UL's and a completely stock MSM suspension. I did the entire first day (4 Sessions) with 32 psi hot. The tires were gripping but it felt like the sidewall was flexing a bit in hard cornering. Under the suggestion of my instructor on the second day I upped the pressure to 36 psi hot. The tires felt much better on turn in and the grip was noticeably better.
I am no expert and do not have lap times to prove any of this but both me and my very experienced instructor noticed the difference in how much faster I was able to push the car after the change.
I am no expert and do not have lap times to prove any of this but both me and my very experienced instructor noticed the difference in how much faster I was able to push the car after the change.
#143
Yeah, I'm registered for the rest of the season, hoping things will be less hectic in the near future. I'm disappointed I missed this weekend. Ended up cleaning gutters and going on a 5 hour shopping spree instead. :(
I think the Rivals are definitely going to be the tire to beat in the dry, N/A or FI in our club.
I think the Rivals are definitely going to be the tire to beat in the dry, N/A or FI in our club.
#144
Yeah, I'm registered for the rest of the season, hoping things will be less hectic in the near future. I'm disappointed I missed this weekend. Ended up cleaning gutters and going on a 5 hour shopping spree instead. :(
I think the Rivals are definitely going to be the tire to beat in the dry, N/A or FI in our club.
I think the Rivals are definitely going to be the tire to beat in the dry, N/A or FI in our club.
#148
Rival vs RE-11A vs AD08 vs Z2 http://www.tirerack.com/tires/tests/...y.jsp?ttid=172
Not really useful for us because it's 245s on a 18x8 on a heavy car, but interesting none the less
Not really useful for us because it's 245s on a 18x8 on a heavy car, but interesting none the less
#152
We were driving only 8 tenths to keep from burning the fronts off since it was FWD car and had the tendency to have under steer already. We had to rotate the tires every 5 hours to keep the wear rate even and we did get minor MINOR blistering. BTW this car was built at PRI in about 72 hours and only had 76 miles on it when it got the track. Hahaha
Phenomenal tire, don't know if any other tire could do what that one did with how hard we were driving it. Mind you we had all Pros in the car including Charles Espenlaub(Grand Am GS champion), Tom Long (Grand Am ST Champion), Tristan Vautier (Indy Lights Champion and currently in Indy car), Scott Shelton (National club champion and MX-5 Cup Shootout winner), me (Skip Barber Mazdaspeed champion with 18 wins out of 20 races) , and Ed Bergenholtz (A drag racer, but a respectable driver).
#153
I see, I didn't know that. I knew the plan was to run the Rivals the whole 25 hours. When you guys finished, I didn't look at the tires just assumed they were still the Rivals. Well officially, you guys weren't running the Rivals anyway...
I was driving one of the Acura ISX's in E1. We run the regular R1 during enduros, and we've had very good luck with them.
We just got a couple sets of Rivals for our guys starting out in HPDEs to use. Sending them out on R1s while they are still learning is kind of stupid. I think the Rivals will do an excellent job of providing plenty of dry grip, while lasting a very long time for our HPDE guys.
I was driving one of the Acura ISX's in E1. We run the regular R1 during enduros, and we've had very good luck with them.
We just got a couple sets of Rivals for our guys starting out in HPDEs to use. Sending them out on R1s while they are still learning is kind of stupid. I think the Rivals will do an excellent job of providing plenty of dry grip, while lasting a very long time for our HPDE guys.
#154
Double POST!!!
Also, the team and line-up you guys had was a bit silly. Some of the most talented and fastest guys in the entire field were driving one of the slowest cars...
Seems like a bit of a waste, I understand the PR objective but still.
Lastly, how do you drive a B-spec car at 8 tenths? Full throttle only 93% of the lap instead of 96%???
Also, the team and line-up you guys had was a bit silly. Some of the most talented and fastest guys in the entire field were driving one of the slowest cars...
Seems like a bit of a waste, I understand the PR objective but still.
Lastly, how do you drive a B-spec car at 8 tenths? Full throttle only 93% of the lap instead of 96%???
#155
Double POST!!!
Also, the team and line-up you guys had was a bit silly. Some of the most talented and fastest guys in the entire field were driving one of the slowest cars...
Seems like a bit of a waste, I understand the PR objective but still.
Lastly, how do you drive a B-spec car at 8 tenths? Full throttle only 93% of the lap instead of 96%???
Also, the team and line-up you guys had was a bit silly. Some of the most talented and fastest guys in the entire field were driving one of the slowest cars...
Seems like a bit of a waste, I understand the PR objective but still.
Lastly, how do you drive a B-spec car at 8 tenths? Full throttle only 93% of the lap instead of 96%???
Yeah, sending guys out on R1s first go wouldn't be the best idea. Haha Those tires on an MX-5 is not easy to drive, I am sure it's a little better on a heavier car, but still. Btw where did you guys end up, that car looked quick.
#158
It was decently quick, we qualified on pole in E1 and also set the fastest race lap in E1, by a decent amount.
And, as Emilio has so deftly alluded to, we finished behind the 949 Racing E1 car, and a couple other MX5s. We were very close to finishing on the podium despite changing a transmission, among a myriad of other extra pit stops for various exhaust breakage issues...
This year hopefully things will go better
And, as Emilio has so deftly alluded to, we finished behind the 949 Racing E1 car, and a couple other MX5s. We were very close to finishing on the podium despite changing a transmission, among a myriad of other extra pit stops for various exhaust breakage issues...
This year hopefully things will go better