The Z Precision adapter spacer slides over the two studs.
Next, the adapter is installed with the large aluminum spacer on top.
The adjustable adapter was very easy to install and bolts to the two factory studs.
The 5th Gen Camaro pedal is then bolted to the Z Precision pedal adapter and the DBW pedal install is complete.
The pedal feel is typical to any modern car with Drive-By-Wire. There is not as much character or ‘feel’ to the pedal as there is from pulling on a throttle cable, but there are so many advantages when going DBW that it’s difficult not to.
The Z Precision bracket is extremely high quality and very solid. You would never know there is a pedal adapter under your foot, even when stomping on the throttle aggressively. The Camaro pedal’s shape and positioning makes it almost identical to the stock FD’s pedal. However, this isn’t really a great thing because the stock pedal is also skinny and far from the brake pedal, making heel-toe downshifts more difficult.
To solve this problem, I (Billy Johnson Racing) designed and 3D printed a throttle pedal cover that slides onto the 5th Gen Camaro pedal without tools. This wider throttle and the shape and angle of the throttle makes heel-toe downshifts effortless.
For comparison, the stock throttle pedal suffers from the same problems as the Camaro DBW pedal.
While I was at it designing a pedal cover for the 5th Gen Camaro DBW pedal, I decided to design a pedal cover for the factory cable throttle pedal as well.
Now that our Bosch 82mm Drive-By-Wire throttle body and DBW pedal conversion mounting kit from Z Precision and are installed, our conversion is done and we can turn our attention to making the wiring harness for the engine and connecting it to our new pedal and throttle body.
Stay tuned!
9 comments
This is a no-stone-left-unturned kind of build and I am glad you are documenting it! I hope you make a video at the end covering everything you have done over the years.
Thank you. We will do a video recap at some point.
I had no idea the stock TB was so complex. It’s actually pretty cool, and I’m sure it was a great setup for a stock or closer to stock engine, but I can only imagine the new e-throttle will give far better drivability and support making more power on the new engine.
but a 5% reduction in size… I’m surprised they didn’t find an option that was just barely larger, instead.
If you consider the throttle shafts into the equation, the effective area is actually the same. I would imagine that a single butterfly impedes flow less than several smaller ones.
LS3 throttle body is 90mm but the motor is huge and probably wouldn’t fit very well here.
What bothers me most is that the throttle pedal spacer in installed the wrong way up. That’s going to cause some serious issues.
Lol. You’re right. It’s upside down. Well, should be an easy fix.
Ha, you’re right. Good catch. What serious issues will it cause?
It will cause no issues whatsoever. It just doesn’t line up with the opening in the carpet and that’s too much for my OCD.
GrantC – There’s a hypothesis that a much smaller 74mm TB will perform better at power levels up to ~500whp… That might need testing.