Clark Darrah

Hi Chris (@cwrega), Welcome to the Registry and congratulations on getting your RS! This issue is caused when the battery inside the Life ECU dies. When you look at the top of the log book file that...

@davidf thanks for all the input, super helpful. I got the job done in the end. I used a single sling strap. I can see why you used a 2nd strap going diagonal. I came across a number of issues durin...

Kevin, I've been promising this for a while so I went out and took some measurements last night. I've attached those for now so everyone at least has a starting point. I'll repost a better drawing ...

I spent more time on this yesterday and I think I have identified the issue. I am using the latest version of Windows on a clean laptop that has nothing else on it. To recreate the error, I can insta...

I get mine (PFC-01) from either Competition Motorsport or NaroEscape Motorsports. The part number is 7745-01-16-44. I have tried Carbotech pads too (NaroEscape can get them), but I found the pedal a b...

An update on the bi-wing setting: Last weekend at the Radical Cup Road America race, I noticed that many of the competitors were very trimmed out on the rear bi wing. Some 1340s were set at 3 from t...

Custom Yo.... lol Attachment : PXL_20210420_035022653.jpg Attachment : PXL_20210420_035017796.jpg

Hi @danamg, welcome to the Registry! I see from your recent posts that you are trying to decide between the RXC Spyder and and SR10 and are wondering why all of the dealers are pushing you toward the...

@rjbender Hi Rod. Yes, and your way makes sense. On the main wing, lowest down force would be the 4th from the bottom. "From the bottom" is specified in the user manual setup sheet, and I have int...

I spoke to Jonathan today and asked about uprights. Cost for original steel uprights for SR3 are about $1100 each. Cost for Billets about $1500. Yes, the lifing for the original uprights is about 4...

@fsts2k Hi Kevin. What model and year Radical did you purchase? I am familiar with SR3 only. The fasteners you need depends on how much work you plan on doing yourself and how you drive. The ma...

I took delivery yesterday. While the offloading of the car on the trailer was a bit of an adventure, my 2021 SR3 XX is now safe in garage. Chassis number 1307 is now a Granite Stater! I'm honestly ...

Hello to all, My name is E. J. Scott. I'm located in Temecula, California. I'm a retired (2006) full time SCRA and USAC Sprint Car driver and team owner with a passion for road racing ever since I was...

Yesterday I was planning to send my broken engine to Spring Mountain, so I called them to check their schedule, lead time, and to get a rough estimate after explaining the condition and circumstances....