r/Autocross
I'm looking for some wheels for summer driving and autocross, any recommendations in 7.5 inch width?
I was looking at the Enkei TS-V 17x8 but I cannot run those in street touring for my 2015 mazda3. Are there any other wheels that have a similar look but are legal for street touring?
9Lives wing hardware specs?
Does anyone have a Swan Neck wing mount pattern (technical drawing or measurements) they can share, for a 9 Lives wing mount? I can't get them to send me the measurements, and I need to make a custom pylon/upright for my car. And my wing isn't delivered yet, but CNC is gonna take a week or more - and I got events coming up. Help anyone!
Hello again drivers of reddit, i want to upgrade my (garbage) raceland coilovers to actually enjoy driving my miata. i did some research and came to Tecna Supermiatas. Thoughts, Opinions or Advice?
My goal here is to make a daily driveable car that i can take to the track once a month. I am NOT trying to make a track car yet. I bought the car with raceland coilovers (not sure which one exactly) but anytime theres even a crack in the road i feel it vibrate through the chasis and if theres a bump or railroad... lord have mercy upon me.
So after doing my part and researching before asking like an idiot i came to Tecna SuperMiatas and i wanted thoughs, opinions and advice on them or what i should do. I originally was gonna get some Meister R's but was on the fence between those and FM's V-Maxx's. Eventually i found a post talking about how smooth they are and their performance and it seemed to match up with what im looking for.
To wrap it up, i wanted to know, are they overkill for a spirited driver who wants to take his car to the track here and there or are they a cry once buy once kinda upgrade that i won't regret. Are they fine for daily street usage or catered more for track use? What are some common issues and solutions for them?
TLDR: Are Tecna SuperMiata GT's Overkill for spirited daily driving or get something cheaper? (Budget: <$1500)
Edit: i have now found another competitor to the Tecnas; Bilstein B14's.
Best run from yesterday.
Made a rear adjustment that cost me time in the second heat, figured it out and got the time back plus a little on the last run, but too late for meaningful improvement 🙃
Alignment stuff
Anybody with a similar fwd chassie? What alignment settings you guys using?
A052 delaminated after 2 runs today
As title says, my front left A052 delaminated pretty bad today after only the second run on the day (wasn’t this bad at first but I decided to just finish out the runs and ended up like this)
It was a pretty hot day here in South Florida (85 degrees) and the track was super rough on the front left (oval with long right hand sweepers and hard braking)
F80 M3 so pretty heavy car, -3.5 degrees camber, 27psi cold pressure. Tires have 6 events on them, and I didn’t notice any excessive wear on the the outside on the other tire.
Wondering if there is anything I could have done to prevent this. Sprayed the tires after the second run, but didn’t think they would get hot enough to do this after two runs.
Having fun with the G87 M2
I had a very inconsistent, yet fun day yesterday with the M2. As someone who started last year, I have improved a bunch but the car can do so much more. Still managed to run middle of my class. Just got my GoPro as well which is already proving to be extremely valuable as a learning tool.
Looking for an auto cross car
I’m currently looking at an old beat up Honda civic for cheap to get started in racing. I have no experience driving on a track so I don’t want to use my current daily. The civic I found is a 93 hatch with the B18 dropped in, full exhaust system, intake, coil overs, wheels and tires. The issue is it snapped the timing belt and I have no idea how bad it is yet. I just want to know is it worth my time and money to fix this or is it not worth it at all.
Pinched tires vs stretched tires - FWD
6th gen civic on coilovers in EST. for a 205/50-15 200tw tire, would you target a 6.5" vs 7" wide wheel if you had the option? I think I understand that the more the tire is pinched, the more grip but less responsive. While the car actually rotates pretty well due to a large rear sway, I probably could use more grip and a lighter wheel. What do you think? or it probably isn't enough to make a difference?
And yes, I considered a 225 but fitment space is limited and I dont want to mess with that quite yet.
Fourth event. Took first in C + D street by 0.8s and 3rd in PAX. Abarth 124 Spider aka The FUGAZY
Decided I was done in novice, and no novice at these events anyhow!
At MSCS hosted by SCCLaC
For an XA build, would you rather have a Turbo 4cyl, or a NA V8?
In a class where the powertrain can be nearly anything you want, which way would you lean? The benchmark appears to be 450-500hp which is easily achievable with either setup. Some cars won't have the luxury of choosing any motor, but cars like RX8, 240SX, and Twins are a blank slate with any number of engine swap options. The current cars have mostly relied on 4cyl turbos, but that's because they were SM/SSM cars first and SM heavily penalized the displacement of V8s. With SM gone, will that trend still prevail in XA/XB if builders started from a clean slate?
Weight is certainly a factor, and maybe it's the main factor when choosing. An aluminum 4cyl like a K20/24 fully dressed with turbo stuff is likely 75lbs lighter than an LS? Weight reduction can be hard to come by so maybe that's the deciding factor?
What about power delivery? Just because they make equal power doesn't mean it's the same power delivery. Which would you rather have?
I'm just curious and interested in opinions. Autocross is a unique animal and the decisions for it don't always follow prevailing trends of other motorsports.
Fingerless Glove Recommendations
It's getting hot, and sometimes my hands are sweaty. This is a disaster waiting to happen.
I would like to try out a pair of fingerless gloves, so I can use my data logger and camera (touch screen) while in staging.
I would like something thin, with minimal padding to keep feel of the wheel similar.
What do you guys recommend?
What’s on your autocross bucket list?
Let’s hear your autocross bucket list items. Mine is pretty short right now:
Attend an event at Packwood
Drive a D prepared car
Am I Doing This Right?
Title is just a teaser. Rained right before run and figured I could have some fun :-).
Engine/drivetrain:
• turbo inlet and intake
• catless dp
MHD Stage 2+ OTS tune
XHP custom stage 3 trans tune
• X-delete 30/70 power split
Suspension:
x3m sway bars
x3m endlinks
spherical bushing thrust arms
prototype double bypass, dual adjustable coilovers
swift springs 10K/14K
20x10 et28 wheels with 13mm front spacers for 101% track width ratio
285/35/20 extreme contact 02
Chassis:
x3m chassis/subframe braces
antigrav battery
Weight is 4280 with a 50.1/49.9 distribution.
Morris race truck
(1961 Morris minor) I was reading the description and I wanted to see if anyone knew about driving these trucks either as a daily or stories of past uses in the case this truck were to land at the Nurburgring would this BAT setup or auction truck be worth fixing or tuning.
If the engine is underpowered I’m not aware of common engine/drivetrain swaps.
Assuming the steering mechanisms are innovative I would imagine trying to build around that