Project SC300 Road Racer: Part 30 – Sometimes You Finish Where You Should’ve Started
using air saw to cut into chassis
This would not work with a Sawzall. At all.

The goal here is to remove just enough of the chassis material to allow a wrench to get onto the nut, but not so much material that the structural integrity of the chassis is compromised.

There are quite a few spot welds here where a lot of material comes together. Removing too much would be bad.


close up of piece of three-layered steel cut out
With three layers of steel coming together, you would think it would be hard for that tiny saw to cut through.

The air saw sliced it like butter, for the most part.


bushing cap laying on a white towel on a table
Don’t forget to put the bottom cap on the front subframe bushing before bolting the subframe to the car.

Which means it’s time to bolt the subframe back into the car!


looking past blurry springs to see nut behind new slot cut in chassis
Peek-a-boo! I see you, you trashy nut.

Before putting the subframe back in the car, we removed the weird caged bit, which left a standard nut, more or less. We properly torqued everything and put it all back in.

We did have to trim the subframe itself ever so slightly to get enough clearance. The angle of this photo doesn’t show it clearly, but I promise you that there is just barely enough space to get a wrench onto that nut.

Now I can get a wrench onto that nut and torque the bolt from the other side with confidence.

All that work just to defeat a stupid nut! Thanks, Toyota engineer person from the 80s. Don’t let the door hit you on the way out.


  1. At this point, I’m more interested in hearing about you getting your money’s worth out of this thing than more upgrades. That’s not to say the work recently posted isn’t first class, but if it can’t run the times it’s for naught. I’m genuinely curious how fast this thing is as is.

    1. You and me both — curious how it’ll do. I got some lap times at Grid Life Road Atlanta last season and they were alright. Off the pace for NASA ST2 times but respectable considering I still didn’t even have a baseline for the car. Heck, I’m still figuring out starting tire pressure.

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