CharleyH .

The costs are equivalent. We use two sets of Hankook tires during a race event. The UK refresh may be a less expensive option, but I think that when shipping is considered it works out about the sam...

I think it has been done with the SR10, but it is uncertain to me whether that has decreased overall maintenance cost. The SR3 is a good car because it is well balanced with sufficient downforce and ...

Attachment : gear.jpg As the RPE agent here in Eastern Canada, I can say that the processes and procedures we use come from an incredible amount of data and expert analyzing to provide the best ba...

@charleyhradicalsportscarregistry-com Thanks Charley. I just got off the phone with Jonathan. He spent an hour answering questions and just being an incredible resource. While there is a ton of inf...

When I was deciding which direction to go in with a race car, I did the one day at AMP with Primal in their SR1. Good guys at Primal. Even with older hybrid tires and having to wait for slower othe...

Hi Scott, welcome here. I am the exclusive dealer for the North East. If you give me a call I can run you through everything on car models, cost to own, operate, community we have in the North East an...

Thanks! I’ll definitely try both the SR1 and SR3. The house racing series at AMP has a lot more competition in SR1 so I’m inclined to go that direction but I’ll keep an open mind.

What a great topic! I'll come at it from the other side: Radicals are slow, fussy, and expensive compared to proper SCCA sports racers like, say, a Stohr WF1 or an ex-IMSA Lites car. We have a fello...

From this weekend's rain-soaked Divisional. Gonna have to get a better camera than my AIM. Won the group ahead of a Beasley P2 and also set the GTX track record.

July 2022 with Spring Mountain Powertec America. The damage on this engine after 25 hours on-load was minimal but needed a new clutch and transmission parts. I would imagine there are many standard ...

On your SR8 it is fitted to the bell housing/oil tank. Cannot remember which side but it is an anodised plate on the bottom of the tank, the same one which has the drain plug in. 150° is the default r...

Thanks David. Very important correction in post number 2, you wrote "The Mustang GT3, built for IMSA GT3 race series, cost about 250k in 2017. (The updated FIA GT3 2023 version from Ford will certain...

I called the Radical engine department in the UK, and I was able to talk to I think the lead engine rebuilder as well as another engine tech. They both confirmed that the refresh schedule for the 150...

Thanks Dan and Charley for the input. I have sent an email to Spring Mountain for clarification, and I will likely send another to the factory. It would be useful to hear what they have to say, alth...

You are correct. In my ECU log book data, I have the following for on-load: On-load engine speed (rpm): 4000 On-load throttle position(%): 25.00 On-load vehicle speed (kph): 48.3