S550 Honey Badger GT350 Build Build Thread Profile - S550 Mustangs

[dragoon]

There are several parameters that vary when taking sound measurements....103 at one track may be very different at another.
Something to keep in mind.

True. Whenever I’m at Road America, I have yet to see someone being sent home early because of sound limits.

 

[Vettel-ish]

Any thoughts on tires for this build

Food for thought - the dB meter at Road America is after turn 3 just past the cheese bridge on the left next to the flag station (turn 4). Their limit is usually 103 dB’s for us types.

Pretty sure I don't pass

 

[Tonymustang302]

1/2 throttle you would

 

[honeybadger]

Any thoughts on tires for this build

Pretty sure I don't pass

Right now I'm going with whatever I can get cheapest! ha Picked these up off a local gent that races GTD in IMSA for$100 a tire



I also have a pair of worn A7s from @flyhalf that came on a set of wheels I bought from @flyhalf.

 

[honeybadger]

True. Whenever I’m at Road America, I have yet to see someone being sent home early because of sound limits.

I didn't realize RA has sound limits. Should I bring an alternate muffler setup?

 

[Vettel-ish]

I didn't realize RA has sound limits. Should I bring an alternate muffler setup?

They dont. My car is next level loud and I been there 3 times with it.

 

[honeybadger]

Finished up the radiator ducting yesterday. Happy with how it came out! If this works, I'll make out of CF in the future.




Sealed up against the radiator with window sealing foam. I've used this the past with good success. don't worry, it doesn't melt



To secure, I added a couple bolts to my modified k member on the bottom and then a couple into the mount for the upper radiator. Nothing crazy. Just enough to hold it in place




So while this is definitely cobble-fab'd together, it only weights like 2 lbs and my previous experience with making ducting out of this thin AL shows that it works great. So traded a bit of "build" quality for some lightness. Hopefully a CF unit the future will be much higher quality

 

[honeybadger]

Any feedback available on any impact on power (positive or negative) after those Ti mufflers??

the Ti mufflers are straight through, so absolutely no impact on power unless you're using restrictive mufflers already. They're basically a light weight way to muffle sound. even the big mufflers won't impact power. They're truly amazing.

Only downside outside of how hard they are to weld is that they don't take the same quantity of heat cycles like stainless. so they can crack after a few years

 

[Fabman]

the Ti mufflers are straight through, so absolutely no impact on power unless you're using restrictive mufflers already. They're basically a light weight way to muffle sound. even the big mufflers won't impact power. They're truly amazing.

Only downside outside of how hard they are to weld is that they don't take the same quantity of heat cycles like stainless. so they can crack after a few years

This design has been around forever, what's new is the material. Much much lighter.

 

[Dave_W]

Ducting looks nice. If you're worried about the thin sheet "oil canning" you can do a poor-man's bead roll by laying it on a sand bag, putting a wooden dowel on top, and hammering the dowel to create a bead. A little bit of curvature from a bead puts a good deal of stiffness into a large sheet.

 

[dragoon]

I didn't realize RA has sound limits. Should I bring an alternate muffler setup?

They dont. My car is next level loud and I been there 3 times with it.

My bad, I misinterpreted a rule RA imposes on “their” track days that only allow street legal cars. I’m embarrassed to say something incorrectly as I value my credibility here. It’s rule #18 on attached photo.