Exhaust replacement

[livelaughlevin]

(08-29-2024 11:43 AM)banpei Wrote:  I had a look and at first, I couldn't find a hole that's capable of mounting a funnel on. But then I found this on the side:

It looks like a spot where you can mount something on the exhaust tip.
I've sent the details (serial number, etc.) of my exhaust to Tanabe to ask if they have any information on it.

Whilst I'm busy with it, I've taken some photos of the exhaust system as a whole. The exhaust is an over-axle design and, except for the stainless mufflers, appears to be mild steel:


The exhaust system appears to be in a very good condition and I didn't see a whole lot of rust on it.

my HKS hi power looks the same way, I bet they use nicely shining, and corrosion resistant sus 304 for the muffler itself and then a lower grade stainless (which stains less, not 0) like sus 416 for the piping.

[banpei]

(08-29-2024 03:04 PM)livelaughlevin Wrote:  my HKS hi power looks the same way, I bet they use nicely shining, and corrosion resistant sus 304 for the muffler itself and then a lower grade stainless (which stains less, not 0) like sus 416 for the piping.

That could be very well the case...

[banpei]

I received a reply from Tanabe. According to them, the Hyper Medalion should stay within 103dB at 4950rpm.
I'll order the Fujitsubo Legalis R W-tail has been ordered and I'll make a comparison video.

[livelaughlevin]

(08-30-2024 10:23 AM)banpei Wrote:  I received a reply from Tanabe. According to them, the Hyper Medalion should stay within 103dB at 4950rpm.
I'll order the Fujitsubo Legalis R W-tail has been ordered and I'll make a comparison video.

exciting! where did you order it?

[banpei]

(08-30-2024 09:33 PM)livelaughlevin Wrote:  exciting! where did you order it?

Jappower. I probably could have gotten it somewhere else cheaper (e.g. RHD Japan) but then probably the import duties would make it just as expensive.

[banpei]

I picked up the Fujitsubo exhaust yesterday and I found that the box it arrived in was way too large to fit in a two-door. Technically it would fit in the boot of the car, but the opening of the boot was too narrow to fit it in. At the same time it wouldn't fit through the hole when the seats are folded. So I resorted to this:


These are the times I wished I had a three-door!

A close-up of the exhaust tips:

Beautiful and a real work of art!

I'll see if I can mount it in the upcoming week.

[decryphe]

Looks cool!

[oldeskewltoy]

(10-01-2024 07:35 PM)decryphe Wrote:  Looks cool!

that it does........

[DJexor]

Nice!

[banpei]

I bought myself a dB meter as the app on my phone doesn't go further than 84dB. This isn't a limitation on the app, but actually of the mic on the phone.
The dB meter revealed some interesting things and one of them is that the phone app is way off! ?


At idle (about 1000 to 1200 rpm) the Tanabe produces around 69dB to 70dB, which is actually not that bad. But keep in mind that the scale of decibel doubles every 3dB. That means if the Fujitsubo specs are correct, it's four times louder than the Fujitsubo!
At 3000 rpm it produces about 82dB and at 5000 rpm it produces 95dB. That means at 3000rpm it's similar to the Fujitsubo and at 5000rpm four times as loud again!
Next weekend I'll be able to mount the Fujitsubo exhaust under the car and we'll learn then what's the difference between the two.