John Parsons

I've made custom seat inserts from kits you can buy online. You can find videos about how to do it. Once I was happy with mine, I sent it to a local automotive interior shop and had them cover the ins...

Hi Richard, I'm with Charley; I love the notion of the SR5 with its Honda engine and SR8 drivetrain. Where do you plan to run? I'm in Orlando, and spend my track time at Sebring.

Or snag some acetal (Delrin) tubing from McMaster-Carr:

I will definitely check them out. I normally call Spring Mountain, and they are really good at getting stuff, but shipping takes a week back to Florida.

@rlm-dan Dan is the man!!! Nice work gentlemen.

@captainslow It must be a Radical part. I can't find anything about it that matches any of Tilton's offerings. Attachment : 5XVRQpvpSdaEnTOHILDDiA.jpg

Hi Trevor -- the circuit that runs the pump is pretty simple. The ECU takes in sensor input from the air reservoir, and activates a relay via ground wire when the sensor says the reservoir pressure is...

I have an adjustable FuelLab regulator somewhere. I'll swap it in and adjust to 3bar. Thanks!

I drained the fluid from my slave cylinder from my '07 SR8 and a bunch of little flecks of rubber came out -- it must be from the O-rings. I'll post up some photos of it tomorrow.

This total engine hours metric is why there is a lot of interest in oil warming techniques for engines with dry sumps, since the greater oil volume takes longer to get to a minimum safe temperature fo...

Nope. My clutch is fine during the mornings at a track day, but as the day goes on it gets worse and worse to the point that by day's end I can pull the car into my trailer with the clutch on the floo...

Andy -- do you know if the crown / pinion will fit the Q58? (later model cars use the Q72). It came with a medium gearset which costs me time at Sebring since I hit the 6th gear rev limiter twice duri...

Hey guys, this seems like a dumb question... but what is the factory fuel pressure on an SR8 (2009, RS body, RPA #34)? I thought it was 3 bar (43.5 psi), but my car is running 4 bar. Not only that, bu...

@msracing Count me in. I'm sending a PM now. thanks!

I've taken my mirrors apart, and mine are definitely convex. Kudos to Radical for that. But the adjustment ball is heavily marked and beginning to separate from the stem. I need new mirrors. Anybody ...