The G37S is a great track car
#586
Another thing to probably consider other than PSI - check tire temps across the width of the tire. You'll be able to determine if you need more camber if you're burning up the shoulders of the tires. The rolling over is a bit more obvious but it could be that it's only in certain corners that it's doing that.
#587
I neglected to specify that it was my front tires that were rolling over. You guys are right about veryfying if it is uneven contact. I didn't have a ir camera so I was basing this on the tools I had at the time.
That being said, I have quite a bit of freedom alignment-wise. I'm running SPL front and rear camber arms and toe bolts. Other suspension parts include Tein monosport coils, hotchkis sways, and SPL endlinks front and rear.
That being said, I have quite a bit of freedom alignment-wise. I'm running SPL front and rear camber arms and toe bolts. Other suspension parts include Tein monosport coils, hotchkis sways, and SPL endlinks front and rear.
#588
I neglected to specify that it was my front tires that were rolling over. You guys are right about veryfying if it is uneven contact. I didn't have a ir camera so I was basing this on the tools I had at the time.
That being said, I have quite a bit of freedom alignment-wise. I'm running SPL front and rear camber arms and toe bolts. Other suspension parts include Tein monosport coils, hotchkis sways, and SPL endlinks front and rear.
That being said, I have quite a bit of freedom alignment-wise. I'm running SPL front and rear camber arms and toe bolts. Other suspension parts include Tein monosport coils, hotchkis sways, and SPL endlinks front and rear.
It looks like we have a similar set up for suspension mods and camber. Our cars are a bit heavy and carry more weight up front which causes them to understeer. Do you brake late going into a corner with high entry speed? That can be another cause. I found if I get my braking done a touch earlier and focus on being able to accelerate earlier out of the corner my lap times are lower and my tires are much happier. It feels slower going into the corner (because it is), but it is actually faster around the track.
#589
So I got these faucet gaskets to put under the coolant overflow tank cap to try to solve the problem of cooling sloshing around and splashing out on the engine bay when I do track days. DO NOT DO THIS!
It did solve the problem of the coolant splashing. However, I believe it also pressurized the coolant overflow tank which may have pulled coolant out of the system, overheated the engine, and caused it to spit the coolant out the relief tube which caused the engine to get even hotter. Not cool. I think a better solution might be to cut a cap sized hole in a small sponge and cut around it so there would be a small sponge around the cap to collect the coolant that spits out, but does not pressurize the tank.
Some good news- The car was very fast and hopefully I will have some good video to share when I get some more time.
If you see these and think, "hey that would solve the leaky coolant overflow tank cap when I do track days." Skip it. TRUST ME
Definitely DO NOT put a gasket inside this coolant overflow tank cap
It did solve the problem of the coolant splashing. However, I believe it also pressurized the coolant overflow tank which may have pulled coolant out of the system, overheated the engine, and caused it to spit the coolant out the relief tube which caused the engine to get even hotter. Not cool. I think a better solution might be to cut a cap sized hole in a small sponge and cut around it so there would be a small sponge around the cap to collect the coolant that spits out, but does not pressurize the tank.
Some good news- The car was very fast and hopefully I will have some good video to share when I get some more time.
If you see these and think, "hey that would solve the leaky coolant overflow tank cap when I do track days." Skip it. TRUST ME
Definitely DO NOT put a gasket inside this coolant overflow tank cap
The following users liked this post:
slartibartfast (05-31-2018)
#590
When you say your front tires were "rolling over" do you mean that you see wear starting to go down the side walls?
It looks like we have a similar set up for suspension mods and camber. Our cars are a bit heavy and carry more weight up front which causes them to understeer. Do you brake late going into a corner with high entry speed? That can be another cause. I found if I get my braking done a touch earlier and focus on being able to accelerate earlier out of the corner my lap times are lower and my tires are much happier. It feels slower going into the corner (because it is), but it is actually faster around the track.
It looks like we have a similar set up for suspension mods and camber. Our cars are a bit heavy and carry more weight up front which causes them to understeer. Do you brake late going into a corner with high entry speed? That can be another cause. I found if I get my braking done a touch earlier and focus on being able to accelerate earlier out of the corner my lap times are lower and my tires are much happier. It feels slower going into the corner (because it is), but it is actually faster around the track.
It's like you were in the car with me. The front is incredibly heavy for sure and my driving style doesn't help. I brake late and hard. I like to trail brake, don't ask me why. Will have to try easy in easy out.
#591
The wear is going way past the shoulder block wear indicator.
It's like you were in the car with me. The front is incredibly heavy for sure and my driving style doesn't help. I brake late and hard. I like to trail brake, don't ask me why. Will have to try easy in easy out.
It's like you were in the car with me. The front is incredibly heavy for sure and my driving style doesn't help. I brake late and hard. I like to trail brake, don't ask me why. Will have to try easy in easy out.
A month ago I was at Road America and noticed some extra wear on the fronts from late/trail braking. I had lots of open track and felt like I was squeezing every ounce of potential of the car driving at the limit, but it was really wearing my tires.
On Wednesday I was there again, but this time I got on the brakes a bit easier and earlier and really focused on trying to get on the gas earlier out of the right corners (not at the end of a long straight) rather than trying to late/trail brake every corner. I was in heavy traffic with lots of passing and ran a full second/lap quicker. Pretty drastic difference considering I did not really get one clean lap. My tires also look like I did not even do a track day. Wear lines right where they should be.
The only place I have really had luck with trail braking is a very short and technical 1 mile go cart track with 14 turns. It is really fun as you are almost drifting the car and really making it dance, but you just kill your tires. Not great for this car since wide sticky tires are not cheap.
Good luck!
The following 2 users liked this post by 4DRZ:
FlashGuy (06-02-2018),
slartibartfast (06-04-2018)
#592
Is You tube the best place to host track videos to post up here? I was trying to upload video from my track day at Road America last week to Tinypic and it was not working at all. I used the GoPro app to upload video to facebook and it took a really long to upload only about 3 min. worth of video. Let me know if you guys have any tips. Thanks!
#593
I finally got a chance to get about a lap and a third of the Road America track day uploaded. The car was running pretty fast as I caught a lot of cars with big power and weight advantages. It ends a bit abruptly as the GoPro still cuts out and starts a new video at 17:42 every time? Anyone know a way around that?
#595
Are you talking about coming out of the carousel or into turn 3 when you say down-hill right?
#598
So, I took the first step in slowing down the heat transfer from the Carbotech race pads to the Motul RBF600 brake fluid. These are 6AL-4V titanium brake shims. 1.0 mm front and 0.8 mm rear.