Dan Millsaps

I would like to hear experiences of others with regard to LIFING and replacement of suspension system bushings. The SR3XX Owners Manual says 4,000km replacement. However, I discovered a current down...

My car has original standard 3:07 also, which is good universal for me at several different style tracks and HPDE only.

From my experience in my own SR3XX and around several other Radicals, they all behave exactly as you describe. For me, it is frustrating some times the number of sequences required to get into 1st wh...

Try this, see attached. Attachment : TPS issues.docx

UPDATE: I got consensus replies noted below from both Sean and Dan which are super detailed and helpful. I will work with my local dealer for resolution. Now, I am just trying to copy and paste th...

Some additional clarifications: this was an intermittent issue/concern. I ran 4 sessions, it occurred in 2nd, 3rd, and 4th sessions, a couple times each. Each session has approx ~10 laps. In those...

I found one of the hiccup spots, make sure you have sound on. Just exiting turn 1 at Cota upshifting from 2nd to 3rd. This was typical for the other ~12 times it happened all day. Normally exiting ...

I will be digging into data this week. I agree with your comments about gearing, no changes on my part, and my run experience prior with Cota is similar.

(@davidf) Have you experienced this with your new rebuild?

I did not look that close because I drained the oil and it was full of metal. The clutch bearing split prompting full engine rebuild. A few bad parts shown below. Attachment : IMG_6127.jpg

I had my 1500cc engine rebuilt by SM this summer, and local dealer installed it. I just had it out at Cota for the first HPDE outing. A few things are different from the original ~42 hours before my...

See attached Radical technical bulletin from Feb2022, it identifies the new 60W oil recommendation. My 1500cc engine just returned from SM after a rebuild and it was converted with new clutch bearing...

Interesting, mine arrived 2 weeks ago to dealer shop. I dropped off my car last week, but I did not stick around for opening of the crate. Mine should have similar note since it has improved bearing...

I paid ~$3200 for a single day at COTA a couple years ago (3 x 30minute sessions). That was in an older SR3, not properly fit, old tires, and minimal crew interaction. It is quite expensive and woul...

Nope, never did. My engine is out at SM for rebuild right now. When I asked dealer for more information about aftermarket vs Radical preferred brand, they said I need to stick with Radical because t...