First Time Attack event in my 2015 Mustang on 200TW tires after sorting some new teething issues and adding aero.Set FTD by a decent bit against cars on slicks and Hoosiers. YouTube:We have made several improvements since this 1:14.6 lap (the quickest I've driven anything here in 20...

It is hard to beat the performance of a fresh set of Hoosier A7 tires, if you are the sort of driver that can calmly throw down your best lap on hot lap 1 or 2. I have won a lot of NASA TT events (and free tires) with this method. The downside is the limited number of Heat Cycles and the high...

My 2015 Mustang with our first wing upright design and limited front aero (just splitter), setting FTD at a Time Trial in October.Below is the second iteration (lowered wing 6" and moved forward 7") with updated front aero components + fender vents, also setting FTD at another Time Trial in...

Wow what a thread so far! :p Here are my comments on NASA and SCCA TT, as I have run both many many times. I won't comment on GridLife as I haven't run with them, other than to say they are big in their region (Chicago is their home base) but not so much in others.Experience so you know...

S197 AND S550 AXLES AND FLUID TEMP ISSUES ARE VERY DIFFERENTWe have seen high diff temps in S197 (non-Torsen diffs) solid axle cars as well as S550 Mustangs with IRS. But each comes from different reasons, and almost ZERO of this has to do with exhaust routing / proximity.After burning...

continued from aboveWell I can give you 100,000 reasons. Cost for a good alignment machine plus a proper 4 post rack ranges between $20-100K, and we stopped taking in "customer day work" 5 years ago. We could never justify the cost, so about once a month I haul a car to a nearby motorsports...

continued from aboveI like this feature above - the O-rings installed around the spherical bearings will help keep water and grit out of these metal bearings. This is even more important once you get sphericals near ground level. After that was rough adjusted (we had an alignment scheduled...

continued from aboveEPAS CONTROL & POWER HARNESSESAnother OEM system we lost with this "CAN-free" car was the Electric Power Assist Steering, or EPAS. The 2011-14 S197 and 2015-up S550 models all went to EPAS, removing the hassles and dangers of hydraulic power steering pumps / lines /...

Project Update for January 25th, 2023: We are now into 2023 but I have been cranking out the forum build thread updates! Several customer cars have been wrapped up and left, our C6 Corvette is pretty much completed all of the testing and product development we wanted, our 2023 BRZ arrived and is...

continued from aboveThe final Lexan install looks great, but again, all of this work only dropped 9 pounds. We still like these removable Lexan windows for the rear, as they can be unbolted without breaking the glass or needing special cutting tools, which we needed to attack the rear deck...

continued from aboveWe were a bit short on stainless M5 countersunk bolts, so we had a mix of black oxide and SS bolts when mounting the Momo model 88 wheel. I chose the 330 mm version over the larger 350 mm, as it fits my legs and still allows plenty of visibility to a digital dash when...

continued from aboveEven the two "flex" feed lines from the master cylinder to the ABS brick (which we purchased new for an S550) had to be cut for new S197 tube nuts (both were the larger M12 sizes) and re-flared. This wrapped up the plumbing for the brake system and the ABS brick mounting...

continued from aboveThis should tie the highest part of the cooling system inside the engine (steam vent system) to the highest part of the radiator (the upper radiator hose port) to the highest part of the entire system (the remote reservoir), removing any steam pockets in the system...

Project Update for September 20th, 2022: The last update here was April '22 and I'm updating it again in September - only a five month gap - so we're getting caught up on many build threads. I used one of the boring "sea days" on board a cruise (Sept 17th) to write much of this update, and my...

continued from aboveThe radiator hoses we make have proven to be reliable over the years. We're just trying to connect the radiator to the engine with hoses that have some flexibility, the right sizes, and never leak. The hoses often need to compensate for size changes between the water pump...