Owner of Radical SR3 RSX and SR3 XX
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Liked Forum Posts

RE: GDU pump test and case removal

Posted by: @rjbender out of interest, what's the 24 tooth 'forward drive' gear look like David? 21 hour load time: Two small pits in the forward gear. No other significant wear throughout the GDU. ...

In forum General Discussion

5 years ago
RE: Track videos

well, first time back on track in 2023 - a perfect day. Setup honed a little more, a shorter ratio (1 lower than factory standard), newer pads, and a lot more confidence to attack. Ended up doing 82 l...

In forum Track / Race Videos

3 years ago
RE: SR1 and SR4 differences

Hi Frank (@frank), Yes the SR4 and the SR1 have a lot of similarities and some key differences. THe SR4 was introduced in January 2004 and it could be ordered with any engine that Radical offered (13...

In forum SR1 / SR4 Specific Discussions

3 years ago
RE: Help with non-working brake lights on SR3 RS (Chassis #845).....

Update - a big thank you to Charley - the wiring to the brake pressure switch was not fully attached. I had removed a bunch of zip ties in the area of the pressure switch to get to the valve block (...

In forum General Discussion

3 years ago
RE: URGENT: SR3XX with 1500 - Fuel PR issue

That is super helpful, I will begin diagnostics and resolution during my hot summer break now and get to know all these parts much better.

In forum General Discussion

3 years ago
RE: Video on how to change Gear Ratio sets in the SR3 Gear Drive Unit (GDU)

I have used a dowel in the past but found this inexpensive tool that works well. It has a magnet so it doesn't fall out.

In forum How To / DIY Discussions

3 years ago
RE: Hankook Medium vs Soft compound

I ran this past weekend with the C72s. Friday 60 degrees in the morning and 85 during the day. It's a big difference. I did use my tire warmers in the morning and could run 8/10s on the first lap. ...

In forum Suspension setup and Handling discussion

3 years ago
RE: Video on how to change Gear Ratio sets in the SR3 Gear Drive Unit (GDU)

Yes. Use cutting fluid and take a little off at a time to keep your cutting bit cool.

In forum How To / DIY Discussions

3 years ago
Hello from Poland

Attachment : IMG-20230321-WA0004.jpg Hi! Im from Poland and I am an owner of Radical Prosport chassis 0082. I have tried it only once on a small track but I am already a big fan of it. I hope it ...

In forum New Member Introductions

3 years ago
RE: Hello from Poland

Welcome Maciej (@soph)! I am looking forward to hearing more about your car and your adventures with it. I checked my notes about your car and here is the limited information that I have on it. App...

In forum New Member Introductions

3 years ago
RE: Video on how to change Gear Ratio sets in the SR3 Gear Drive Unit (GDU)

@rojid Yes, I always use a 1/2 inch torque wrench set to 80 foot pounds to tighten the lock nuts ... with a 1/2 inch wobble extension and 1/2 to 3/4 adapter. If you look at all of the posts on th...

In forum How To / DIY Discussions

3 years ago
RE: AIM MXL Memory problem

I believe there is an internal battery in the dash because if I remember correctly I sent my MXL Pista back to Aim and had them change it for me. I would call your local Aim Service center and ask. ...

In forum General Discussion

3 years ago
RE: Video on how to change Gear Ratio sets in the SR3 Gear Drive Unit (GDU)

I just use the red 271 loctite on the threads of the lock nuts. No problems with loosening, and no problem removing the lock nuts with a 1/2 inch impact wrench.

In forum How To / DIY Discussions

3 years ago
RE: AIM MXL Memory problem

@rjbender Ok i put a new lithium battery since few days, i try to download again the software and test after cut off the main power on the car thanks for your support

In forum General Discussion

3 years ago
RE: Would anyone know what is this part on 2010 SR3

Thanks. Yikes that I noticed the shocked is snapped. I was at track 2 days ago. Thank god It snapped and fell apart in my garage ....

In forum General Discussion

3 years ago
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