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Streets of Willow Track Day Report

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424
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131
Location
Ridgecrest
#1
On November 15th I had a track day with extrmespeedtrackevents.com at Streets of Willow in Rosamond, CA. The configuration was Clockwise and it was anywhere from 45-62 degrees during the day, with some sessions completely dry and others in the wet!
My car is stock other than an Accessport and TB Torsion Bar Stiffener. I did put on DTC-60 track pads for the front of the car for the track day.
I’m by no means a superb-driver, I’m just your run of the mill guy with roughly 10 track days of experience over the last 5 years, all of those in a c5 corvette.
Here’s what I thought:
DTC-60 pads up front, OEM pads in the rear and Rotul 600 fluid:
10/10 would run this set up again. Never boiled the fluid and the DTC-60s held up to the task during the day. With the car pointing straight, braking was fairly uneventful.
Occasionally I would experience the rear end wagging a bit during braking, but I believe this was more so based on my driving ability than the pads and the characteristics of the car. The initial bite of the DTC-60’s is noticeable more aggressive than the OEM pads. I felt minimal brake fade, if any, during each session.
Tires:
Stock tires are good for about 5-7 minutes before they get greasy. Unfortunately, they are just not up to the task for a full session if the goal is to put in a hot lap every lap possible. This has been my experience with other “normal” street tires as well.
Handling:
Holy off-throttle oversteer batman. It took a couple sessions to get a hold of the off-throttle oversteer before I was comfortable with it. Bare in mind, I have the TB torsion bar. I was able to utilize this characteristic in the later sessions to help with turn in to the apex of turns. My first session, I was too herky-jerky with the throttle and it upset the car to the point that the torque vectoring had to kick in to help me out. Smoothing the inputs (both steering and throttle) really helped control the car better. Overall, I learned how to use it to help me hit the apex or to correct my line. Definitely an interesting sensation that my previous car did not exhibit much of.
I had issues with on-power understeer with the wider radius turns such as the bowl and the last turn before the front straight. I followed Ryan in a bone-stock fiesta ST and he was able to get more speed out of these turns and would leave me in the dust on the straights. This is definitely a racing-line/experience/decision making thing I can improve on. I never felt like I was able to hit those turns optimally.
Handling Wet:
This was my first time playing in the rain and I was really happy to see the difference between dry and wet sessions. Basically, cornering is much slower relative to the differential in time for accelerating and braking. Throttle input made a difference and getting off line in the wetter corners made a difference as well. We didn’t have puddles on track, but I had two sessions with the wipers on as the trac k transitioned from dry to wet. Overall, it wasn’t much different than the handling in the dry, just at lower speeds.

Fiesta ST oil and coolant temperatures: With it being roughly 60 degrees out, I hit 244 oil and 224 coolant for maximums.. My other sessions the ambient temp and oil/coolant were lower. I believe Ryan in the stock fiesta ST had his go into limp mode at least once.

It was cool to meet Pete and some other people in fiestas and foci. Pete's car is badass.

Unfortunately my gopro footage didn't come out very well, I will have to change the location for the next time.

I had a best time of 1:34.6 in session 4. About a 3 second improvement through the course of the day.
I know a 1:33.1 is possible with a bone stock fiesta because Ryan was able to do it :).

[video=youtube;XEaYk9t8ALY]https://www.youtube.com/watch?v=XEaYk9t8ALY[/video]


Disregard the arrow. We ran in the clockwise direction.
 


Pete

Active member
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332
Location
San Diego
#2
Thanks for all the praise! I'll post my feedback on my car and the setup I have after dinner. Until then enjoy the video I made of a few laps meshed together with some video editing.



[video=youtube;lQJl6Mul4aQ]https://www.youtube.com/watch?v=lQJl6Mul4aQ[/video]
 


Pete

Active member
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784
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332
Location
San Diego
#4
awesome vid my man!
Thanks bro, I had a lot of fun out there!

For those that haven't seen my build this is what my car has

Powermods: MP215 kit, Mountune intercooler, bluetooth turbo transformer, muffler delete

Chassis/Suspension: Pierce Motorsports (PM) 6 point chassis brace, PM Strut tower brace, PM Race Torsion beam, PM Rear trunk brace, F/R Eibach Sway bars, Ford Racing coilovers with 425F/425R spring rates with the rear springs mounted in the stock location

Brakes/Wheels: Wilwood Big brake kit on the front running BP-40 pads (on track), Mountune RS-T pads on the rear, 16x7 14.4Lbs Rota Slipstream offset +40, Bridgestone Potenza Re71R 205/45/16 (got to the track with 400+ miles on them), Stainless steal brake lines, Stoptech 600 brake fluid

Aero: Rally innovations Front and side splitters, Rally innovations carbon fiber rear wing with gurney flap added, Skid plate with lower air damn removed, opened up grill with modified bumper beam.

Interior: Rear seats were removed for the track day, along with all tools, spare tire, and anything else in the back that could come out easily.

So after experiencing my first time at Streets of Willow, reflecting on it, and watching my helmet cam videos to analysis my driving lines and more here are my impressions/results/feelings etc...

My first session I was nervous which is normal as I had never been on this track before. I have had 4 previous track experiences but never at Streets of Willow. Because of the nerves I almost forgot that I had to bed in the track pads and almost resulted in going in too hot on the first turn. So for the first few laps I was focusing on the brakes, and learning the driving line. As it is one thing to watch it on video it is another to be in the drivers seat and have a sensory overload from everything happening. So once I became confident that my brakes were broken in I did my best to follow other people's driving lines. The first two sessions were very crowded which resulted in quiet a few people spinning or going off track during my runs. But once I got through the field and comfortable with memorizing the track I got to really push the car to 100%.

Everyone run I did was with the traction control fully off, even my first run as I am pretty used to the characteristics of my car and how it handles. This was also my first time running these tires so I was interested in the results. What I found was on my first lap of every session that I was pushing the car hard I would get nice rotation from the rear end. To me it was buttery smooth and as seen in the above video I just turned the wheel to the opposite direction to counter steer and carried on. After the first lap the tires were up to temperature. I found that setting my fronts to 26 psi front and 28 psi rear when cold got me my best results. After the tires were up to temp there was no more over steer and most importantly there was never understeer. The car would have so much grip until all 4 tires at the same time would slide together. I never felt that the tires got greasy and they just kept holding strong as I was pushing the car 100% lap after lap after lap. Nor did I experience any brake fade as I felt the braking zone is where my car shined the best at. Because of the rear wing when I was braking the rear end never stepped out or wiggled even from the back straight away after the chicane. A few other people in Fiesta's or Focus's told me to be careful there as the car can get unsettled but truthfully I never felt that and the result was I pushed the car harder and harder through that spot every time. As for engine temps the highest I saw was 224 I think but again this day temps ranged from 50-60 something degrees. I felt the car was set up as perfectly as could be in the suspension, braking, chassis, and reliability area. I will say I never thought my Fiesta needed more power until this day on the track on the straight aways those Evo's would just leave me behind but I also attribute that to not being able to put the power down sooner as I could feel the front inside tire occasionally spin when turning into the main straight when I wasn't feathering the throttle. So before I decide weather or not I am going to increase the power on my car I am going to save for an LSD. I did have one moment where I dropped a wheel off track on the back straight while passing someone through the chicane which resulted in my passenger front tire going out of alignment. But with my handy dandy camber gauge I was able to set it back before the next run.

I am very eager to go out again be it Streets of Willow or Button Willow and push the car to the limit again and again. It was great meeting not only the Fiesta and Focus enthusiasts, but also going and talking with the other people I was running my car against. Like talking with the guys with the Evo's, power wise they were stock they had only changed their suspension and tires. There was a lot of love shown towards the little green machine and I can't wait to do it all again.

Lastly about these tires they did double duty. Because not only did they get abused on the track, but they also got me home safely in the pouring rain without hydro planning once. I think I found the rubber I am sticking with (pun intended). Also after each run on the track you could feel with your hand how sticky the tire was. That and finding all kinds of tire marbles in the fender well was pretty cool. I also would have been stuck in the thunder/sand/wind storm if I didn't get help from the Fiesta guys around me to change back to my street brakes.
 


RAAMaudio

5000 Post Club
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925
Location
Carson City
#6
Great reports, vids, etc.....:)

Save up, get a credit card, etc....GT290R DHM kit, LSD....you will then be embarrassing some EVO owners;)

You would likely need a radiator and oil cooler as well though, it never really ends what we can put into a car but what is life worth living if not having some fun!
 


Siestarider

Senior Member
Messages
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292
Location
Stuart
#8
Lots of good insights from Pete and Brick.

My tracking over the past year proved to me that adding the LSD completely changes the tracking experience, and for the better in every way.

Car actually becomes easier to drive fast, lap times drop because you can get out of turns faster, and front brakes run measurably cooler. All my track time in the Fist has been on BFG S-Comps, a really durable street/track tire, but those RE71's Pete describes are superior. Plus all the chassis stiffening (I have only the PE 2 point lower) he describes.

I love that 4 wheel drift, even if its not the fastest way around, its just a blast. In coming year I will also have Cyborg power and stickier tires, really looking forward to it.
 


Messages
158
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33
Location
Valencia
#9
Sounds like you guys had fun, went to a private track day today at The Streets. Soo much fun!

We have so many people in the Socal community we should try doing a private ST trackday.

There are so many fewer cars, we had no more than 25 cars total and about 5-10 on the track at one time. Here is a quick vid of me chasing down a M3 near the beginning of the day, I was still a little skittish of the rear with the Pierce motorsports rear torsion bar at high speed and my first time with this car at this track but I got over it fairly quickly after this.

https://youtu.be/U8Uhju-eH-w
 


OP
Brick
Messages
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131
Location
Ridgecrest
Thread Starter #10
[MENTION=2687]RobK[/MENTION] sounds like you have the hook ups for private days :-D

Help me, help you /jerry McGuire

Cool video, and nice work!

I agree, we really should try to get more STs together at one time. It's a blast and I enjoy the camaraderie.
 


RobK

Member
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33
Location
Valencia
#11
[MENTION=2687]RobK[/MENTION] sounds like you have the hook ups for private days :-D

Help me, help you /jerry McGuire

Cool video, and nice work!

I agree, we really should try to get more STs together at one time. It's a blast and I enjoy the camaraderie.
Yeah I do have a hookup but it's not very cheap, there were probably 20-25 cars and most were very high dollar. Mclarens, Race Porches, Aston Martins , All the M series Bmw's.. My car was the price of many of the ceramic brakes on the cars. If we get a bigger group the price drops and I think we should have the numbers..
 




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