Looks brand new! Great job. How did you take off the old paint? Just alot of paint stripper and a wire brush. That's what I am using on my 2T22. It takes forever but the outcome is totally worth it. As I've said before, that restore looks awesome! Nice. Guess that is the best way to go without sand...

Lily D wrote:Sorry about the bad quality picture. I came across this siren on street view, and I cant figure out what it is. Does anyone here know?


siren.png

Could it be a Sterling N-5?

Looks brand new! Great job. How did you take off the old paint?

Stripped paint in the horn today along with cleaning the copper ring inside the chopper tube. Pictures to come.

Zarlog wrote:

Thunderbolt10031 wrote:

QuantumCurse wrote: Interesting. Does that mean the 4 port tone is more dominant in the pitch?

Yes, on a 4/5 the low tone is dominant, and the same goes for the 5/6 port models too.

I have never noticed that. They both sound the same to me.

When you listen to it carefully you can kinda hear it

chevycaprice wrote:very nice pictures it looks great so far keep up the good work

Thank you!

Null

I got the flange and pipe back from the machinist today! Here are the pictures.

Yes, because it receives more air coming into the rotor since the four port side faces the siren's intake. Same with naturally aspirated sirens too, for example you will hear the 12 port side of a 9/12 ACA siren slightly louder than the 9 port side, since these have the 12 port side on the same sid...

They were all like that. That's why the B flat(on chopper level 5) of the four port row is the most audible when you listen to a 4/5 Thunderbolt. Interesting. Does that mean the 4 port tone is more dominant in the pitch? Yes, because it receives more air coming into the rotor since the four port si...