John Parsons

Hi All - just got an older SR3 in gulf livery from a friend in Austin. Chassis 187. It was showing 50 hours but not sure how accurate that is. I’m in the Bay Area, planning for just track days. Just ...

Opinions on tires can be very open ended, one person interpretation of tire life vs another can have big variable. With that said though, the Hankooks for these cars are absolutely incredible for cust...

This is a 'special' 1440cc engine that we have done, it did 260hp at the output shaft, I cannot remember the torque figure. Due to the parts in this engine we can rev it higher it higher than normal p...

@trakmnky well except the main output axle from gearbox and heavyduty shafts to the wheels i personally dont think the power is going to be any issue for drivetrain, im never. Launching it and im only...

When I was at Team Stradale a few weeks ago I noticed that they have a great way to add some nose weight to the front of the car when jacking. Here are some pictures. Attachment : IMG_3479.JPG ...

Attachment : 20810D65-F6A1-4F0F-9A71-716EB5D7CFA1.jpeg Attachment : BDFF7873-049D-4894-A20C-80292A786F0B.jpeg

Hi guys.. been slow on the updates here.. some pics comming up! My new plenum with watercooled intercooler is just finnished. Used a core from a berlingo intercooler perfect size for this fitment, r...

I would second everything @davidf said. I did one track day in an Audi with full nannies and then bought a Radical so I had plenty to learn. At my home track my first weekend I ran 2:00 laps. The seco...

Very good points made by @gwt561324 @davidf above... I'd add if you're going to start progressively and slowly add a little more tyre pressure than recommended cold start pressure to get the tyres up ...

You might want to dial in more aero until you're more comfortable with the car. Depending on the corner and setup you can have a gap in a corner where mechanical grip isn't enough and aero doesn't ad...

These thermostats are more diverter valves that full flow in diverted or through flow mods.ie only flows through the cooler radiator when oil reaches desired temperature. They don’t function as p...

Thanks Garrett. The post session review seems really useful. I don't review my data until I get home and it's a chore to remember what was happening, take mental or physical notes, and recall them ag...

I'm biased a bit because I know some of the guys on the Catalyst team, but I have really enjoyed using it. There are three main bits I get get out of it: Voice coaching Green/red during the lap to kn...

I 3D printed a simple bracket, and attached it with velcro just in front of the cockpit. This gives it a clear view of the road, and I can quickly remove it if needed so it doesn't get wet. Att...

@slowcar - I was reviewing the specs on the oil thermostat you posted. It looks like it optimizes to keep oil temp between 160F and 180F. Is that correct? That is likely too cold for the Radical to be...