Superformance MKII, Riverside Racer 289 FIA vintage race car

[xb-60]

Jim, a nice looking set of pipes.
Just wondering, what internal diameter are they?
Will they be coated? This is not my area of expertise ....do you know if ceramic coating does actually make a difference to the power output in race applications?

Cheers!
Glen

[1795]

Glen,

The headers are 1 3/4" and the exhaust pipes are 2 1/2". 2" pipes would have been too restrictive for this engine and 3" pipes would have killed the torque. They do real nice work at Gas-N.

Jim

[Mark IV]

Originally Posted by xb-60

Jim, a nice looking set of pipes.
Just wondering, what internal diameter are they?
Will they be coated? This is not my area of expertise ....do you know if ceramic coating does actually make a difference to the power output in race applications?

Cheers!
Glen

2.5" I.D. They are not coated, they are "mill finish" i.e. as the stainless comes from the supplier. I do not know if coating helps power, it does reduce heat radiance but stainless has less heat transfer than mild steel anyways.

Hoping to wrap up work here at Time Machines today so we can transport the car back to Jim's home shop for the minor details completion and eliminate his 3 hour round trip commute to our shop.

[1795]

Originally Posted by Mark IV

2.5" I.D. They are not coated, they are "mill finish" i.e. as the stainless comes from the supplier. I do not know if coating helps power, it does reduce heat radiance but stainless has less heat transfer than mild steel anyways.

Hoping to wrap up work here at Time Machines today so we can transport the car back to Jim's home shop for the minor details completion and eliminate his 3 hour round trip commute to our shop.

Glen,

What Rick said. I am in a hurry to get out the door to do that long drive to his shop so that I can get to work on the car and get it back home. Rick volunteered his shop for the car as he and others would be there to help while I was rehabbing my rotator cuff.

The headers and exhaust pipes are a high quality stainless steel and will not transfer heat as readily as mild steel. I can always have them coated later if I feel the need. Take care.

Jim

[xb-60]

Thanks Rick and Jim. Yes, the thermal conductivity of steel (the "k" value) is around 3 times that of stainless.

Cheers,
Glen

[Mark IV]

The Time Machines FIA Vintage car is off the lift, into our trailer (Jim's new trailer has not arrived yet...like EVERYTHING on order today!) and back at Jim's shop for the final details. Unfortunately, it will not make the Glen HSR race next weekend as the dyno tune cannot be done in time. But we expect this to be a real bear with the new engine and some other tweaks!

[1795]

Started sorting out the new build and some suspension changes at the Pittsburgh Vintage Grand Prix. The weather was mixed, with a lot of rain and some races cancelled due to thunderstorms. Here is a video from one of the time trials. The first half of the video is the most interesting, after about half way through it gets a little boring, as it is just me for several minutes and then the trip back to the paddock. Also, I need to move the camera as the rear view mirror is in the way.

https://youtu.be/6JhbSBPgpZ4

Jim

[xb-60]

Good to see the video footage Jim.
You'll have to fix that low fuel pressure though!

Cheers,
Glen