Project FRS - Autocross build & videos

[justinco]

Originally Posted by trippinbillies40

Looks slow. Probably should try turning your A/C off

Those damn A/C goblins always sneaking around!

[DocWalt]

Pic is awesome, your car looks great!

Originally Posted by justinco

Fixed it. Yep, ever since they changed to not link direct images it sucks I could see, even in an incognito window...but not on Tapatalk, oh well works now.

gross.

[justinco]

Video from Springs Nats & Pro Solo ... Hopefully get to editing the Mineral Wells video footage for next Monday.

[ame]http://www.youtube.com/watch?v=Yf94M9CWVZA[/ame]

[justinco]

Little slow on updating with videos...came away with the win at Mineral Wells Pro, and 2nd place at our local Colorado Tour. One of these years (I've done 5 Colorado Tour's now) I will win my local Tour lol

[ame]http://www.youtube.com/watch?v=lDqjIR5XqKQ[/ame]

[ame]http://www.youtube.com/watch?v=CFEe-Vd9xFg[/ame]

[justinco]

Coming soon for my 2017 BRZ.

New exhaust (yes, another one)
New rear swaybar (Mann engineering *adjustable*!)
Dyno comparison between my stock intake box + Blitz filter & Perrin inlet tube VS Grimmspeed intake

[bslate3]

It's been fun watching your videos and running against you at some national events. Hope to see you at Nats!

[justinco]

Originally Posted by bslate3

It's been fun watching your videos and running against you at some national events. Hope to see you at Nats!

Yea likewise, I'll be there for sure. Are you going to make it?

[bslate3]

I hoping to be able to make it. I'll know more for sure in a couple weeks.

[justinco]

New exhaust is on. Went from really loud and light, to really quiet and a bit heavier.

Blitz Nur-SPEC VSR dual exit exhaust

[ame="https://www.youtube.com/watch?v=sQP1YXCU3UA"]Blitz Nur-Spec VSR exhaust install for 2017 BRZ - YouTube[/ame]

[justinco]

Damn, Lincoln Mid-Div race this past weekend sure was a stressful mess.

Went in using virtually the same setup that I used at Spring Pro/Nats. We put 80+ runs on the car at those events, over 3 drivers, with no complaints of grip problems.

Day 1 I go out and the car is on ice...then I DNF 'cause the car plowed off course trying to brake, then I spin big on my 3rd and 4th runs, barely even pushing the car. WTF. I could not keep the car straight to save my life, it was all over the place. Felt like driving it off a cliff as I could not believe how different it was than just a few months earlier.

Luckily we had fun runs afterwards and I stayed out there testing things until they closed it. 7 runs later and drastically changed bump/rebound settings, the car was working mostly good again.

Day 2 I continued my testing from fun runs. I was able to get a 54.8 out of it, for my fastest time, next fastest was 55.1. Both runs with noticeable time lost due to mistakes. Craig did a best of 54.1, so I felt better about the car at that point. Last years fast time on that course (it was the 2016 Nats courses) was 54.6. So, give or a take a couple tenths for course differences/weather/setup/etc, I felt my time was ok. Now I just need to drive it with as little mistakes as possible.

Now I am wondering if I have had my suspension setup all wrong this whole time. Even going back to my FRS, as I had serious grip issues at Nats last year too. Weird thing is, it has seemed to work good enough at some National events this year. Hopefully I turned a corner though this weekend...

Now I just have to see which BRZ shows up at Nats in a few weeks. Hopefully the one that works and has grip, so I can actually drive it.

[DocWalt]

Man, that sounds frustrating. Are you still running the fairly high spring rates?

See you in a few weeks, my Focus is gone though I'll be driving one in the Pro Finale... Driving a FiST for nats.

[M0nk3y]

Originally Posted by justinco

Damn, Lincoln Mid-Div race this past weekend sure was a stressful mess.

Went in using virtually the same setup that I used at Spring Pro/Nats. We put 80+ runs on the car at those events, over 3 drivers, with no complaints of grip problems.

Day 1 I go out and the car is on ice...then I DNF 'cause the car plowed off course trying to brake, then I spin big on my 3rd and 4th runs, barely even pushing the car. WTF. I could not keep the car straight to save my life, it was all over the place. Felt like driving it off a cliff as I could not believe how different it was than just a few months earlier.

Luckily we had fun runs afterwards and I stayed out there testing things until they closed it. 7 runs later and drastically changed bump/rebound settings, the car was working mostly good again.

Day 2 I continued my testing from fun runs. I was able to get a 54.8 out of it, for my fastest time, next fastest was 55.1. Both runs with noticeable time lost due to mistakes. Craig did a best of 54.1, so I felt better about the car at that point. Last years fast time on that course (it was the 2016 Nats courses) was 54.6. So, give or a take a couple tenths for course differences/weather/setup/etc, I felt my time was ok. Now I just need to drive it with as little mistakes as possible.

Now I am wondering if I have had my suspension setup all wrong this whole time. Even going back to my FRS, as I had serious grip issues at Nats last year too. Weird thing is, it has seemed to work good enough at some National events this year. Hopefully I turned a corner though this weekend...

Now I just have to see which BRZ shows up at Nats in a few weeks. Hopefully the one that works and has grip, so I can actually drive it.

You had issues in Texas too though, another concrete site.

[justinco]

Originally Posted by DocWalt

Man, that sounds frustrating. Are you still running the fairly high spring rates?

See you in a few weeks, my Focus is gone though I'll be driving one in the Pro Finale... Driving a FiST for nats.

I switched to the 400's from the 450's I had on my FRS (all around).

Cool, see you then! I don't think I will make the Pro, not enough points

Originally Posted by M0nk3y

You had issues in Texas too though, another concrete site.

Right. I was also on different tires and bars then as well though. That event is what prompted me to change both bars, alignment, and tires.

One thing I have never really changed much (from the RCE base shock setup) is the compression. I have changed the rear a bit trying to fix the grip, but never the front (always about 75% soft).

My theory now, is that I have just been way too soft with compression, especially in the front, all this time. It works good enough at home where we have no power and less grip, and also at sites that are not concrete (like Min Wells, although I also had 2 unexpected spins in the same spot there as well). Once on concrete, the grip is just too high for the bump settings. I am either bottoming the suspension, or it is too soft to get any load into the tires initially, not allowing the shocks/tires to do their thing. However, this does not explain why the car seemed to have grip in the spring Although, I do remember it having some of the same bad behaviors, just not snap oversteer or sudden loss of grip.

This is the best I can come up with after analyzing all my setup logs back to last year including the FRS. Like I said, hopefully I have turned a corner and started to finally figure this car out (I am slow...) as I am growing tired of fighting the car and setup

[M0nk3y]

Originally Posted by justinco

I switched to the 400's from the 450's I had on my FRS (all around).

Cool, see you then! I don't think I will make the Pro, not enough points



Right. I was also on different tires and bars then as well though. That event is what prompted me to change both bars, alignment, and tires.

One thing I have never really changed much (from the RCE base shock setup) is the compression. I have changed the rear a bit trying to fix the grip, but never the front (always about 75% soft).

My theory now, is that I have just been way too soft with compression, especially in the front, all this time. It works good enough at home where we have no power and less grip, and also at sites that are not concrete (like Min Wells, although I also had 2 unexpected spins in the same spot there as well). Once on concrete, the grip is just too high for the bump settings. I am either bottoming the suspension, or it is too soft to get any load into the tires initially, not allowing the shocks/tires to do their thing. However, this does not explain why the car seemed to have grip in the spring Although, I do remember it having some of the same bad behaviors, just not snap oversteer or sudden loss of grip.

This is the best I can come up with after analyzing all my setup logs back to last year including the FRS. Like I said, hopefully I have turned a corner and started to finally figure this car out (I am slow...) as I am growing tired of fighting the car and setup

FWIW, my car worked wonderful during the Spring Pro, then it turned into a dumpster fire pile of garbage during the Tour.

I definitely think you're missing out on not playing with bump, especially at Lincoln. But that's just me