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For Autocross fans. Show your stuff!

2manyturbos said:
What spring, shock/strut and sway bar combination do you have on your car?
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Currently running, IPD wagon lowering springs, B6 bilsteins front & back, IPD swaybars front and back, not sure on the size of those.
(Also have front lower chassis braces and upper strut to firewall brace). Figured this was the cheap option until I could afford coilovers.
 
Daisywagen said:
Currently running, IPD wagon lowering springs, B6 bilsteins front & back, IPD swaybars front and back, not sure on the size of those.
(Also have front lower chassis braces and upper strut to firewall brace). Figured this was the cheap option until I could afford coilovers.
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If your 240 feels tail happy try switching the rear bar back to the 16mm factory bar. The combination of IPD lowering springs and IPD sway bars makes a 240 oversteer easily. If you aren't on the gas really pushing it when it is sliding like it is in the video, you have too much rear roll stiffness. The car will be quicker through the course if it is more neutral balanced.
 
2manyturbos said:
If your 240 feels tail happy try switching the rear bar back to the 16mm factory bar. The combination of IPD lowering springs and IPD sway bars makes a 240 oversteer easily. If you aren't on the gas really pushing it when it is sliding like it is in the video, you have too much rear roll stiffness. The car will be quicker through the course if it is more neutral balanced.
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I’ll look into that, the previous owner had the ipd sways added, I just measured them and it’s the 25 front, 22 back version. I might keep my eye out for a stock or smaller rear sway bar.

In that video I highlighted some of the slides for entertainment value, a majority I didn’t get as squirley and my times were a little better, but might try out a small rear bar setup and see if it’s any better. I also have the G80 locker i bought awhile ago, I may put in over the winter, maybe give it a little extra grip.
 
Daisywagen said:
I’ll look into that, the previous owner had the ipd sways added, I just measured them and it’s the 25 front, 22 back version. I might keep my eye out for a stock or smaller rear sway bar.

In that video I highlighted some of the slides for entertainment value, a majority I didn’t get as squirley and my times were a little better, but might try out a small rear bar setup and see if it’s any better. I also have the G80 locker i bought awhile ago, I may put in over the winter, maybe give it a little extra grip.
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I have a stock rear bar I will give you if you want to try it out.
 
2manyturbos said:
I think you would be fine with your 205/55-16 tire size. That said, if you can afford the spacers and additional cost for the wider tires, why not.
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Well, I was planning on buying some 17x8 wheels for next season, but I just bought some RE-71RS in 205/55R16 on clearance from tire rack for $97 each. At that price I figured 205s are worth a shot. Now I just need to find a spare set of Hydras locally and maybe I can try them out for the last couple events this year.

When I made my order it said there were only 4 left in stock, but Tire Rack is still saying they're in stock, if anyone is interested.

 
threewagons said:
Well, I was planning on buying some 17x8 wheels for next season, but I just bought some RE-71RS in 205/55R16 on clearance from tire rack for $97 each. At that price I figured 205s are worth a shot. Now I just need to find a spare set of Hydras locally and maybe I can try them out for the last couple events this year.

When I made my order it said there were only 4 left in stock, but Tire Rack is still saying they're in stock, if anyone is interested.

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Awesome. Those are a good choice for a camber challenged car like your 940. I think you are going to love them. They take longer to warm up, however, once they do they are fast. I'm looking forward to see how they do at the Fall Enduro event 2 weeks from now. The A052s would drop off in grip by the 3rd lap of the 5 lap run. I like how precise the RE-71RS steers. There are plenty of folks that don't like how precise they are. Even in the tire reviews some of the test drivers don't like the way they are so responsive. I've been meaning to post some vids from events I've been to lately. The last event of the year with my local club was a blast. The pavement at VRC is absolute crap. It comes apart when we run there resulting in loose gravel everywhere. If you get a few inches off the line people tend to drive it ruins your run. Anyway, I had one of those runs there that is near perfection. That is a rare occurrence. Most runs are a series of mistakes, some greater than others.

My run at VRC.

<iframe width="1248" height="702" src="
" title="EESCC AX6 VRC 2019 GT run 4 40.558 sec 8-25-24" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>

Last weekend at PIR with the Oregon Region SCCA.

<iframe width="1248" height="702" src="
" title="SCCA AX12 PIR 2019 GT run 3 35.169 sec 9-14-24" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>
 
2manyturbos said:
Those are a good choice for a camber challenged car like your 940. I think you are going to love them.
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Any 200TW will be a big improvement over the PSAS4s currently on the car, but everyone I've talked to locally said the RE-71RS is the one to get.

I'm running BNE select strut mounts so I do have slightly more -camber than stock (I measured it at about -2*).

I also ordered IPD's adjustable strut rods during their labor day sale, they're adjustable up to 400mm so I'll be able to get some more caster and some free dynamic -camber. They weren't in stock (just said available to order) so who knows when I'll see those :lol:
 
The annual SSCC Fall Euduro event was last weekend. I went back down to Medford hoping to shave some time off my track record that I set in 2022 and shaved time off of in 2023. This year I ran on Bridgestone RE-71RS tires for the first time. I have been on Advan A052s for the previous 3 seasons. I hoped the RE-71 would be a good choice for this event since they don't drop off in grip quickly the way the A052 does. The disadvantage to the RE-71 is they take much longer to come up to temperature than the A052 does. Anyway, I went there intending to set a new record, if possible, or, fly right off the track. Practice on Saturday went well, except, it was obvious to me just how slowly the REs come up to temp. Saturday's runs during the practice were record setting lap times by the 4th practice session. My laps were quick enough I could have shaved almost 3 seconds off the record I have there had I been able to do the same thing on race day. The track was repaved in many places since I was there last year. That changed the line in many places because of the new pavement.

Sunday didn't go as planned. I went too hard before the tires came up to temp and didn't notice the GT started to step the rear end out on a full power upshift just enough to put me over one of the curbs that define the course just enough for the right front tire to get into the dirt. It drug the car in to the right and spun it around almost backwards from where I should have been pointed. That was the end of any chance of a class trophy or track record. I hung a U-turn and finished that lap and the next 4. Those 4 laps were fast enough I would have shaved .5 seconds off my personal best there. One and done. No re-runs. I didn't want to come back from the track this year thinking I left anything on the table. I succeeded in that goal. There's always next year.

A friend of mine that I coached this weekend shot video of my run. This is the remainder of the run after the spin. She shot the run from the beginning, then, stoped shooting video when she saw my car spin and stop on track. I like how composed the car looks during the run. It looks like a grandma out for a Sunday drive.


Saturday's 4th practice session. I drove this exact line Sunday and just as hard.


Sunday's timed run, part 1.


Sunday's run post spin.

 
We just had our final event of the season last week so I decided to analyze my raw times compared to the group over the 5 event I attended.

Here's my gap to the #1 car (not karts or f-mod):
1st event: 9.503
2nd event: 9.419
3rd event: 6.343
4th event: 7.979
5th event: 6.167

My 5th and last event of the year was on my new re71rs tires, and it was the first time I finally broke into the top half of the times. :cool: we had a very fast course with only 3 tight corners, so I didn't get to take full advantage of the new tires.

I'm running in XA with 20+ fast drivers so this car won't be getting any podiums any time soon, but I'm very happy with my season and to see my driving improve after every event. I can't wait for next season to try to close the gap even more!
 
threewagons said:
We just had our final event of the season last week so I decided to analyze my raw times compared to the group over the 5 event I attended.

Here's my gap to the #1 car (not karts or f-mod):
1st event: 9.503
2nd event: 9.419
3rd event: 6.343
4th event: 7.979
5th event: 6.167

My 5th and last event of the year was on my new re71rs tires, and it was the first time I finally broke into the top half of the times. :cool: we had a very fast course with only 3 tight corners, so I didn't get to take full advantage of the new tires.

I'm running in XA with 20+ fast drivers so this car won't be getting any podiums any time soon, but I'm very happy with my season and to see my driving improve after every event. I can't wait for next season to try to close the gap even more!
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Nice. Do you have any videos from your event? What do you think of the RE-71s? The first time I ran on race tires I couldn't believe how much difference they made. I was hitting cones on the inside of the corner for the first 2 runs because the car went right where I steered it. Before the race tires were on it I would turn in and wait for it to actually hook up.
 
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2manyturbos said:
Nice. Do you have any videos from your event? What do you think of the RE-71s? The first time I ran on race tires I couldn't believe how much difference they made. I was hitting cones on the inside of the corner for the first 2 runs because the car went right where I steered it. Before the race tires were on it I would turn in and wait for it to actually hook up.
Click to expand...

That was my exact experience too. The first run when they're cold felt pretty sloppy but after that they really came alive.

This is actually my second event on these tires, I did a smaller non-scca event prior to this as well.

 
threewagons said:
That was my exact experience too. The first run when they're cold felt pretty sloppy but after that they really came alive.

This is actually my second event on these tires, I did a smaller non-scca event prior to this as well.

Click to expand...
They are always going to be like that. The RE-71 does not start to grip well anywhere near as quickly as an RT660 or Advan A052. Once they do come up to temperature I like the way they drive better than the RT660 or Advan. My set is wearing much better than the Advan's did.
Nice job of driving. You were tight on the cones everywhere. Not adding any extra distance and putting everything together with a plan vs. driving point to point. The only thing I saw in that run that I would change if possible is to backside that first slalom cone more than you did. You were a bit later on each cone after the entry cone. It built up by the end of the slalom. You did great through there. You kept your speed up and just turned the steering wheel. When you get more power/speed it starts to become a real work out staying off the cones in a slalom. You need all the time you can get to move the car into position for the next slalom cone. Anyway, I see major improvement in a very short time.
 
2manyturbos said:
They are always going to be like that. The RE-71 does not start to grip well anywhere near as quickly as an RT660 or Advan A052. Once they do come up to temperature I like the way they drive better than the RT660 or Advan. My set is wearing much better than the Advan's did.
Nice job of driving. You were tight on the cones everywhere. Not adding any extra distance and putting everything together with a plan vs. driving point to point. The only thing I saw in that run that I would change if possible is to backside that first slalom cone more than you did. You were a bit later on each cone after the entry cone. It built up by the end of the slalom. You did great through there. You kept your speed up and just turned the steering wheel. When you get more power/speed it starts to become a real work out staying off the cones in a slalom. You need all the time you can get to move the car into position for the next slalom cone. Anyway, I see major improvement in a very short time.
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Thank you! I've been trying to trail brake but I definitely need some more practice and to carry my braking a little further through the turn. That hairpin feels awful and the car just pushes when you ask for too much steering, it's the same for most low speed/tight turns.
 
Interesting that you mention the trail braking. It looked to me like you were applying it to your run. Two of the clubs I run with had their last events of the season consecutive weekends at PIR. Everything is done for the year here in the North West. At both events top competitors from each club were interested in learning left foot braking based on watching my runs. They got it how helpful it is to get the weight transferred to the front end during cornering. The competitor running with the Porsche club is a driver I always watch to see his line that drives a highly modified M3. Our times are always close, depending on the course. We did a course walk together at the PCA meet and he asked as many questions about the technique as we could discuss in a single course walk. He is one of the instructors for PCA. Another club member from my Eugene club showed up at the BCA season final event Sunday at PIR. He couldn't get in to the event because it filled up. He was there the day before in his 2023 Miata in C Street and set Top PAX for the day. He is always checking out what I do on course. I invited him to ride along on some of my runs. He ran the first run with me on cold RE-71s. I told him what to expect. That I was going to take it easy to find the course and get some heat in the tires. He was impressed with the time considering I was taking it easy. He rode along on my 3rd run and my final run. His comment, "I thought no way is this thing going to make the corners, and, it did, no sweat. I have to learn left foot braking." The course with BCA was tight and technical. The technical part is my kind of course. It really separates the drivers into skill level. Position was everything. The M3 driver ran the BCA event as well with me. He took out cones on 5 out of 6 runs. If he could have run clean he would have beat my raw time by 1.8 seconds. One of the top drivers from another club I run with didn't get a single clean run at the BCA event. I ended up with 1 cone penalty on 3 of my runs that day. My excuse is my car is huge. I never heard a cone strike and thought I was far enough away from them to keep from getting any penalties. According to Matt, the Miata driver, he couldn't understand how I wasn't running over more cones since I was running so tight on them. According to John, the guy that coned all his runs, I was barely touching the base of the cone with my back tire on the tight right hand gate and sending the cone skidding sideways. I went there to get seat time. I didn't care how I placed that day since I don't run for points with BCA. I use events suck as PCA and BCA events to work on driving the GT at its limit right on the cones. That's what it takes at a National event. No slacking.

Fastest run with Porsche Club of America at PIR.

<iframe width="640" height="360" src="
" title="PCA AX8 PIR 2019 GT run 5 37.770 sec 10-13-24" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>

Fastest run with BCA at PIR the following weekend.

<iframe width="640" height="360" src="
" title="BCA AX8 PIR 2019 GT run 6 49.565 sec 10-20-24" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>

And that's a wrap for this year. It's going to be an incredibly long 4 1/2 months until I can drive like I stole it again.
 
Took the V8 wagon to an autocross yesterday, entered it in the 'fun' class. It's LS swapped, so it would probably otherwise be in XA?

444w6Mk.jpeg


Anyhow, lol, it was a sloppy mess on an autocross course. On the road, the G80 diff is an issue, but not a HUGE issue, you just have to wait a little to get the car mostly straight before putting any power down. And on an autocross course, yeah, you're pretty much always going from turning one way directly to turning the other way.

IPD sways front and rear, IPD lowering springs, Bilstein HD's, 225/45/17 RT660's. The rear roll stiffness means it's very quick to unweight that inside rear tire. Which meant I was rarely able to put down any power at all. A minor issue in most road driving, but a glaring huge issue yesterday, to an almost comical extent. Certainly never any power oversteer, at least.

It was feeling a bit slidey at the front end, though. Less front end grip than I would have thought it would have based on the way it drives on the road, generally bigger corners, less steering angle? Pavement and air temps weren't all that bad, sunny and mid 60's. So the RT660's probably weren't too cold, they do drop a lot of traction before they're warmed up though.

Forgot to take the GoPro, no video. And too soon for the event photos to show up online yet. Here's a grid pic of the Volvo trying to cool off between runs. I kept it running assuming it would heat soak even worse if I shut it off. The first couple of runs I kept the hood shut on the grid, and temps crept up to just under the red on the Volvo dash gauge (compensator board removed, stock sensor in the upper radiator hose). After that I started opening the hood and that helped it stay cooler.

Despite the car being a bit underwhelming* it was a real hoot. Tons of people came up and said how much they loved seeing it there. A bunch of people wanted rides.

* I am probably comparing the autocross driving experience to the Miata, which isn't fair to the Volvo.
 
JohnMc said:
Took the V8 wagon to an autocross yesterday, entered it in the 'fun' class. It's LS swapped, so it would probably otherwise be in XA?

444w6Mk.jpeg


Anyhow, lol, it was a sloppy mess on an autocross course. On the road, the G80 diff is an issue, but not a HUGE issue, you just have to wait a little to get the car mostly straight before putting any power down. And on an autocross course, yeah, you're pretty much always going from turning one way directly to turning the other way.

IPD sways front and rear, IPD lowering springs, Bilstein HD's, 225/45/17 RT660's. The rear roll stiffness means it's very quick to unweight that inside rear tire. Which meant I was rarely able to put down any power at all. A minor issue in most road driving, but a glaring huge issue yesterday, to an almost comical extent. Certainly never any power oversteer, at least.

It was feeling a bit slidey at the front end, though. Less front end grip than I would have thought it would have based on the way it drives on the road, generally bigger corners, less steering angle? Pavement and air temps weren't all that bad, sunny and mid 60's. So the RT660's probably weren't too cold, they do drop a lot of traction before they're warmed up though.

Forgot to take the GoPro, no video. And too soon for the event photos to show up online yet. Here's a grid pic of the Volvo trying to cool off between runs. I kept it running assuming it would heat soak even worse if I shut it off. The first couple of runs I kept the hood shut on the grid, and temps crept up to just under the red on the Volvo dash gauge (compensator board removed, stock sensor in the upper radiator hose). After that I started opening the hood and that helped it stay cooler.

Despite the car being a bit underwhelming* it was a real hoot. Tons of people came up and said how much they loved seeing it there. A bunch of people wanted rides.

* I am probably comparing the autocross driving experience to the Miata, which isn't fair to the Volvo.
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I just saw you posted this. It sounds like a blast. I like to run all kinds of cars at Autocross events to see what I can do with them. And yes, a super powerful V8 and no rear grip makes for an entertaining run.
 
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