David Flynt

I do provide my own support and absolutely you can do this on your own for HPDE track weekends. For Radical Cup racing, I think it is necessary to have a technician to provide support because drivers...

@doublej I am a Porsche fan. I have owned two 911 -- a 2011 Carrera S which I tracked and now a 2004 40 Jahre anniversary edition which is too nice to track, but such a sweet handling car. Growi...

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 ...

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 ...

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

Performance Comparison The SR3 is a popular HPDE track day car and race car for several reasons. It has high downforce, is light weight, paddle shift, and has superb performance for the total cost ...

I think I and others may have posted some info about run time versus load time for engine and GDU refresh for 1500cc SR3, as well as what to use in terms of the lifing of components. I want to set th...

I am servicing my car today and I timed the warm-up from cold start. 86°F outside temperature. It took 13 minutes for the oil temperature to reach 50C, and the water temperature never exceeded 90C. ...

Good idea. When checking these, you should remove each one from the thottle bodies, hold up in good light (e.g. sunlight), and gently bend the rubbers to check for cracks on the inside and outside.

I don't have experience with gen 1&2 cars, so I cannot answer your questions about how to get data and what wire harness you need. For my cars, I have a data cable that plugs into the dash. I do...

I have had a similar experience with one of my cars. Ran very rough and required extra throttle, but eventually died. It turned out to be weak batteries. After replacing both, car ran perfectly. ...

@mick_radical I don't know about cars other than SR3, but I assume many are similar. In my experience, I don't think that it is critical to get some exact height formula for the front spitter. The S...