CharleyH .

Hi Don (@speedstarincdjb), A friend of mine at Radical read your post and texted me the process for checking / setting the Throttle Position Sensor (TPS) on cars with MBE ECUs. He said that you shou...

Radical has recently released new Parts Manuals for the SR3 RSX, SR3 XX, and the SR3 XXR. Manuals for the SR10 and SR1 are expected in the near future. The team at Radical did a fantastic job creati...

That made me think of something else to check. It is worth checking the fuel filter because sometimes there can be some fuel cell foam scraps in new fuel cells that can clog the filter. It is a bit ...

@speedstarincdjb, I agree with David, that sounds like the correct next step. I would also check the throttle body boots to see if they have cracked and are leaking. I would also check for any other...

I would also recommend getting a cover for that electronics box. It is hard to tell from the picture but it is likely either a Geartronics shift box, or perhaps a gear indicator box, or shift light b...

@nautoncall, No, the Sure-Seal connectors are not for charging. If your car doesn't have the Anderson plugs it most likely is not set up to be charged. You can add Anderson plugs to each battery if ...

The 4 open connectors are not used on track cars. The street legal cars have side markers and those plugs are for the side markers.

Hi Valentin (@bergfex), welcome to the Registry Forum. Many of the parts for the Gen 1 SR3's are still used on the newer cars so most parts are available through a Radical dealer. The exception is t...

I have a large amount of "New Old Stock" parts for sale. This list is sorted for the available SR3 parts but I also have a lot of parts available for SR1, SR4, SR5, SR8, RXC, Spyder, and Raptures. T...

Sorry, I don’t know this. Hoping someone else will chime in.

@rjbender, Radical introduced the Life ECU and Life paddle shifting in late 2009 / early 2010. At that time paddle shifting was a fairly expensive option so quite o few of the early cars with Life EC...

Hi @meatman, it looks like the shaft failed and the bracket bent in the process. I am sure that I have one of those shafts in my garage someplace nd I can send it to you so you can get back on track w...

@grouparacing, Congratulations Jonathan! Great driving!

A friend of mine reached out to me to see if I had any pictures of the Billet Uprights used on the SR3 and I thought that others might be interested so I decided to do a post. Here are some pictures ...

I am not aware of this. The Radical website once had prices listed on their parts pages, but that was removed because each dealer adjust pricing to account for shipping costs, etc..