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THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHwhere to find US m030 springs?
Leading reported evidence
Run bfg r1s, 245 and 285 widths
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Leading evidence: 'Run bfg r1s, 245 and 285 widths' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Adjust rebound in the rear seemed' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Suggestion
Adjusting rebound in the rear seemed to do the most overall for adjusting the turning dynamics.
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Suggestion
Adjusting rebound in the rear seemed to do the most overall for adjusting the turning dynamics.
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Suggestion
Most of the season I ran it 3/4 stiff, but that was way too loose at Nats so I would recommend 2/4 or maybe even 1/4.
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Suggestion · Original poster
Knfeparty I plan to run my car in A street at nationals next year.
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10 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
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Generation: 20261026T161109Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Hi everyone. I'm going to autox my 99c2 next season. In order to stay in stock class, I can only use sprigs that were offered on this model in the US. Does anyone know where I could find a set of the US spec m030 springs? Sway bars would also be useful.
From what I can see on their site, they only have the ROW m030 suspension which I'm pretty sure isn't the same as the US spec. Knfeparty I plan to run my car in A street at nationals next year. Care to share your setup?
US M030 is a special order; suncoast can get it for you, but it's going to cost a lot more than $1100 for just the springs and rear sway. US M030 isn't as aggressive as ROW M030, so it's not as drastic of a difference. For the other sway, you'll want to get a GT3 front swaybar & droplinks (tarett makes a good set of droplinks). Then double-adjustable shocks to complete it.
Yeah, not sure how much use it will be haha.
I ran the stock FSB (I guess it's the us M030 bar) and a GMG WC adjustable rear, which is pretty similar to a gt3 rear. Most of the season I ran it 3/4 stiff, but that was way too loose at Nats so I would recommend 2/4 or maybe even 1/4.
I ran BFG R1s, 245 and 285 widths. I was able to test fit some take-offs, and the "best" size for Hoosiers was 255 and 305. No way you're going to fit larger than 255 without rubbing, and get the lowest profile you can so it doesn't rub the fender wells or the bottom of the spring perch. In the back, the 305 wasn't actually that tight but I don't see why you would go bigger. 5mm spacer in the front but not the back.
For my koni yellows I set rebound about 1/2 turn off full stiff in the front and anywhere from 7/8 to 9/8 turns off in the back. Adjusting rebound in the rear seemed to do the most overall for adjusting the turning dynamics.
Keep in mind I didn't do very well and this setup was on R-comps. This setup was great on my local events with smoother pavement but was really loose at Topeka.
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