Radical Sportscar Registry Forum - Recent Posts

RE: How do I check hours without computer SR3 XXR?

CharleyH — Sat, 22 Aug 2026 05:59:12 +0000

Hi William (@wthensler), welcome to the Registry. My cars all had earlier dashes but on those dashes there is a page function that lets you see different pages of information on the dash. One of the later pages shows the hours. I don’t know if the newer dashes have the same page function, but they likely do. With that said it is better to hook a laptop computer to the car using the Life Racing cord and download the ECU log book. It shows more information that you will find very helpful such as total hours, number of over rev’s, level of over rev, etc.. I don’t know for sure on the newer XXR engines, but on the earlier generation 1340 people regularly ran them to 80 hours without issue. However if the car has had several high over revs the engine should be overhauled sooner.

RE: New SR3 XXR, Stalling When Shifting into 1st

CharleyH — Sat, 22 Aug 2026 05:48:46 +0000

Hi Patrick(@patn217), welcome to the Registry. Can you expand on what is happening? Is the car slowly shutting down or is it coming to an abrupt stop? Silly question, but you do have the clutch depressed, correct? Have you downloaded the ECU data to see what is causing it to shut down?

How do I check hours without computer SR3 XXR?

William Hensler — Fri, 21 Aug 2026 19:39:19 +0000

I know there’s a way to get the hours off the display, I saw someone go to the ‘flag’ icon and do several manipulations, but I tried a bunch of things and couldn’t figure it out.

Can someone please explain how it’s done w/o connecting a computer?

It’s a 1340 used for tracking and wondering if folks are getting a rebuild of GDU and/ or engine at this interval (driven spirited but not racing).

This is my first Radical, a heck of a car that demands balance but gives an incredible amount of fun back if properly driven.

I’m around 40hrs (so I believe) and had the car serviced at proper intervals. Now, I’m inclined to just do fluids and nut and bole check but wait a bit more for refurbishment. Comments welcome, thanks!

William

New SR3 XXR, Stalling When Shifting into 1st

Patrick Nolan — Wed, 19 Aug 2026 22:30:51 +0000

Just received a new SR 3XXR. PDI was completed and then it was put on a truck to go cross country. Started it up and let it warm up, but every time I shift into first gear, the engine immediately stalls. TPS percentage is between 3 and 3.5 once warmed up. Every other radical I’ve driven, has never had this problem. Thoughts on where to start investigating?

"Identifying Radical Model Year" Guide updated for 2026

CharleyH — Sat, 15 Aug 2026 18:12:34 +0000

Just updated the "Identifying Radical Model Year by Chassis Number" Guide in the Registry Resource Library. https://radicalsportscarregistry.com/identifying-radical-model-years-by-chassis-number/

RE: Radical sr3 2004

CharleyH — Sat, 15 Aug 2026 17:50:57 +0000

@aurel71, Yes, many (but not all) parts from later cars can be used on your car. What parts are you thinking of updating?

RE: Radical sr3 2004

Aurelien Celli — Fri, 14 Aug 2026 18:44:34 +0000

merci pour les info j’ai une dernière question peut-on faire évoluer la voiture avec des pièce plus récente ??!

RE: Radical sr3 2004

CharleyH — Fri, 14 Aug 2026 18:21:46 +0000

Hi @aurel71, SR3 chassis number 143 was built in February 2004 to a dealer in Belgium and there is a note saying that it went on to a customer in France. It is a yellow car with yellow trim and had Protec shocks and a 1500cc wet sump, carbureted engine (serial number W701-157333) using an MBE 992 ECU. It had the lite weight wheels, crashbox, and 64L FIA fuel tank (which is an odd size tank).

I hope this helps. :)

RE: New to Me SR3 XX Chassis # 1502

marc heidings — Thu, 13 Aug 2026 00:01:42 +0000

I am thinking of buying an sr3 or sr10 i drive an viper acrx and c8 zo6 on track coming from gt cars what are the differences you see i am leaning towards a sr10 i run on large tracks,sebring,road atlanta.good luck with your new car

RE: Radical sr3 2004

Aurelien Celli — Wed, 12 Aug 2026 19:40:15 +0000

4895 4895

D’accord

voici le numéro de châssis

je sais que l’ancien propriétaire m’a dit qu’il y avait un 1500 avant et pour faire des courses en France il as envoyé la voiture chez radical pour mettre un 1340 avec les carburateurs j’ai trouvé sa bizzard donc ces pour sa que je cherche des info sur le châssis et le moteur

cordialement et merci pour les info ces super sympa !!!😁