Search found 1401 matches

by dewittpayne
Tue Oct 16, 2018 2:53 pm
Forum: Solo
Topic: Are you using data and video?
Replies: 41
Views: 655

Re: Are you using data and video?

I cant hear my tires. :( Really? Is that because the car makes too much noise? My understanding is that BFG Rival S tires generate maximum grip at quite high slip angles where they do make some noise, although not that much. John Smith complained that he had trouble hearing the tires in my car beca...
by dewittpayne
Mon Oct 08, 2018 1:26 pm
Forum: Solo
Topic: 2018 NCAC
Replies: 44
Views: 933

Re: 2018 NCAC

I think you can use an SCR tuner box and a laptop to log the individual wheel speeds. I'm not sure about that, though.
by dewittpayne
Mon Oct 08, 2018 8:55 am
Forum: Solo
Topic: 2018 NCAC
Replies: 44
Views: 933

Re: 2018 NCAC

JY,

Likely one or more of the other wheel speed sensors is also bad. That would affect both abs and stability control, as both depend on knowing relative wheel speeds.
by dewittpayne
Mon Oct 01, 2018 12:22 pm
Forum: Solo
Topic: Today
Replies: 165
Views: 2618

Re: Today

I could win a class of 5 and index 250th at the event and make the challenge, then win by dropping time. Outside of determining who makes the challenge in a few classes, index has nothing to do with winning the challenge. Absolutely correct. Looking at results, you would expect runs with small numb...
by dewittpayne
Wed Sep 26, 2018 4:57 pm
Forum: Solo
Topic: Today
Replies: 165
Views: 2618

Re: Today

Long slaloms, even with wide cone spacings, are always going to favor cars with narrower tracks over cars with wider tracks.
by dewittpayne
Wed Sep 26, 2018 4:15 pm
Forum: Solo
Topic: Today
Replies: 165
Views: 2618

Re: Today

I hit 57 in the run going into the showcase....but that's my limiter in 2nd. I wasn't on it long so I'd guess with more gear I'd probably been somewhere around 62-63ish. Sent from my SM-S975L using Tapatalk Assuming you were at full throttle in second, you wouldn't have accelerated as fast with mor...
by dewittpayne
Mon Sep 24, 2018 2:54 pm
Forum: Solo
Topic: Today
Replies: 165
Views: 2618

Re: Today

I DNF'd twice there. Once when I wasn't looking far enough ahead on my second run and the other time when I got out of shape at the exit of the sweeper and couldn't get back to the line in time. Speaking of which, something to add to the cone penalty briefing at the driver's meeting: If you hit the ...
by dewittpayne
Mon Sep 24, 2018 1:04 pm
Forum: Solo
Topic: Today
Replies: 165
Views: 2618

Re: Today

On reflection, I think the course might have been a good teaching course at an EVO Challenge School. By the way, you're all welcome for my sacrifice of running on my Continental DW Sports to keep the rain away.
by dewittpayne
Sat Sep 22, 2018 12:18 pm
Forum: Solo
Topic: Event 10 checkin
Replies: 24
Views: 627

Re: Event 10 checkin

Tomorrow will be the first time for us at the event. What class do we need to sign up for? First time 18 year old driving a BMW 328i. Nothing fancy just wanting to have fun and learn. Thanks for any info. What model year? 328i's run in at least two different classes, DS and ES, depending on how old...
by dewittpayne
Thu Sep 20, 2018 8:20 am
Forum: Solo
Topic: zMAX 22nd before Bristol on 3rd
Replies: 8
Views: 372

Re: zMAX 22nd before Bristol on 3rd

The Weather Channel says partly cloudy with a 20% chance of rain and a high temperature of 87 with 70% humidity.

There's a 60% chance of rain from scattered thunderstorms at Bristol on Sunday.
by dewittpayne
Sat Aug 25, 2018 10:19 am
Forum: Solo
Topic: Classing question for the Alfa
Replies: 2
Views: 148

Re: Classing question for the Alfa

I think the tune takes you out of Street Class and puts you in Street Touring. There is an Alfa Romeo Giulia listed under STU.
by dewittpayne
Mon Aug 06, 2018 1:19 pm
Forum: Solo
Topic: Event 8 in the books
Replies: 14
Views: 461

Re: Event 8 in the books

According to wheel speed and RPM, my minimum speed at the last turn was 25 MPH and 2500 RPM. According to my last chassis dyno run, I have about 300 ft lbs of torque at the flywheel at that speed. No need to downshift. I was never happy with my line, though. Mostly I was braking too late and sliding...
by dewittpayne
Mon Jul 16, 2018 10:47 am
Forum: Solo
Topic: My car class?? Solo?
Replies: 10
Views: 409

Re: My car class?? Solo?

If you're serious about autocross, you might want to look at the Starting Line school at Bristol the Saturday before the ETR event. It's not inexpensive, but it comes with a lot of freebies as well as getting you off on the right foot with high quality instruction. It's a lot easier to start with go...
by dewittpayne
Mon Jun 25, 2018 9:54 am
Forum: Solo
Topic: Event 6 after action
Replies: 13
Views: 669

Re: Event 6 after action

There was a big bump in the middle of the first left hand sweeper. Phil Smith's 911 would get a lot of air with his left front tire there that wasn't just from front end roll stiffness. I hadn't thought about checking shock temperatures after a run. Maybe I should think about spraying the shocks as ...
by dewittpayne
Thu Jun 21, 2018 2:41 pm
Forum: Solo
Topic: June 24th BMS Event 6
Replies: 20
Views: 887

Re: June 24th BMS Event 6

Looks like I'll get a chance to test my 'rain' tires on Sunday. OTOH, forecasts can change rapidly around here.