1991 500E SS custom exhaust

[jnes]

My car finally get new SS custom exhaust. I took quite a long but I think it was well worth it. Since my original exhaust were rusted this was only way to go.

Exhaust is hand made, 2,25" from front section and rear is 3" tube. Custom made silencers and 200 cell cats. I'd like to have oe look (there were options like Brabus or AMG you name it)

This guy has manufactured exhaust for 7 E500E cars in Finland. Lakesteel (Only in Finnish)
I can help if someone would like to know more

Here are few pictures and audio clip. I think it sounds very nice.

PS. Please ignore the rear bumper and rust in left fender..

-jnes

 

[albdentist]

...yeah that sounds amazing...

 

[gsxr]

That is a work of art. What was the total cost?

 

[Kridre]

You got your priorities right, first exhaust, then the rest. I like it.

IMO the best sounding exhaust for 500E that I ever heard.

 

[500AMM]

Wow, that was good looking!

What kind of cats did you use?
And how is the drone inside the car?
.

 

[ArauzMotoring]

Sounds amazing! How do you like driving with it?

 

[thebrinksman]

don't see the audio clip....

 

[sheward]

The last "picture" is an audio MP4

 

[sheward]

That's some great work. The stainless takes it over the top.

 

[TerryA]

@jnes, Sounds Great! Looks well made also. Has a nice deep guttural sound

Sounds very similar to szvook’s car

lol

 

[jnes]

That is a work of art. What was the total cost?

When I ordered the exhaust the deal was 2k€, now when the prices have risen due the material costs, final price tag was 2,1k€. I think it is a decent price. On the other hand delivery time was veeery long.

You got your priorities right, first exhaust, then the rest. I like it.

IMO the best sounding exhaust for 500E that I ever heard.

Thanks!

Wow, that was good looking!

What kind of cats did you use?
And how is the drone inside the car?
.

Thanks!
I'll check and report back when I pick up the car tomorrow. I was a bit concerned about the drone but welder said that he is aware of that and know how to handle unwanted drone.

Sounds amazing! How do you like driving with it?

I havent't drive it yet. Video clip was just a teaser. I'll try to take some video when I pick up the car tomorrow.

He mentioned that he has few E500E cars on waiting list and some 600SEC. We discussed the headers also but he said that there is very limited space available (as we all know) and very difficult to manufacture..

 

[Duh_Vinci]

Beautiful work, love the sound!

 

[szvook]

Is this a h-pipe crossover?

 

[500AMM]

I'm not sure what the intention is with the X-pipe:
- for building a wanted back pressure?
- for pressure equalization between the two pipe runs?
- for flow purposes?

It's likely a combo of all the three factors. A X-shaped crossover with a smooth configuration appears to flow better, but if the inlet and outlet pipe dimensions are the same it is a flow restriction over the mid cross section building back pressure and increasing gas flow velocity.

An H-shaped crossover will create minor swirls passing that straight crossover pipe, but the gas velocity will be the same, which strenghten the theory about pressure equalization between the two pipe runs. IIRC does @5thscaleracer use a software to calculate his exhaust system, maybe he can chime in on this.

Here is a Supersprint exhaust for SLS AMG with an H-shaped crossover.

 

[5thscaleracer]

Is this a h-pipe crossover?

H Pipe is required because both left and right banks are split up top. Some balancing is needed before entering the catalysts or muffler to help equalize. Especially with the sharp Y on the end you don't want the exhaust to go back up to the motor due to a positive pulse.

That Y after the cats is too sharp which might cause an odd sound in high rpm. Rule of thumb is 15 degree transitions on Y pipes is ideal, a Merge collector would have been a better choice.

X pipe if large enough is good but most X pipes now are 2 pipes with a small hole. Real X-pipes should be a Y one large center tube then a Y at the end.

The original MB design where it's 2-1 then 2 is actually better for the 32V motor Which is why i kept that design but went with a larger oval pipe in that section to increase flow while retaining ground clearance. Given the space it looks like he is using twin 50mm or 54mm tubes.

The tip design is prone to produce a sound blast noise under hard acceleration. But you won't hear that in the cabin only guys outside of the car will hear it.

Kit looks very well built I always feel sorry for the person who sits and polishes everything at the end.

Overall good execution probably one of the better kits made outside of a jig.

Nice work @jnes

 

[5thscaleracer]

I'm not sure what the intention is with the X-pipe:
- for building a wanted back pressure?
- for pressure equalization between the two pipe runs?
- for flow purposes?

It's likely a combo of all the three factors. A X-shaped crossover with a smooth configuration appears to flow better, but if the inlet and outlet pipe dimensions are the same it is a flow restriction over the mid cross section building back pressure and increasing gas flow velocity.

An H-shaped crossover will create minor swirls passing that straight crossover pipe, but the gas velocity will be the same, which strenghten the theory about pressure equalization between the two pipe runs. IIRC does @5thscaleracer use a software to calculate his exhaust system, maybe he can chime in on this.

Here is a Supersprint exhaust for SLS AMG with an H-shaped crossover.

View attachment 157347 View attachment 157346

it's to balance the left pulse with the right pulse before entering a common point.

The goal of any H or X is to make sure that exhaust gasses go one way and not back up to the motor or turbo.
When a high speed pulse passes the H section it pulls air from the other bank which provides a pull to help draw out exhaust gasses from the cylinder with an open exhaust valve (scavenging).

X pipes when done right and placed correctly help with high rev motors same principal with H but more efficient if done right.
Most X pipes in the aftermarket world (copies) are an X with a nice hole in the middle which don't do anything. It's hard to do a proper X pipe because you need to make sure the volume where the X takes place is the correct size based on the twin pipes that are converging.

The function of a X or H pipe varies based on the speed at which the exhaust gas pulse is traveling. But it's ideal to have on a V motor or anytime you are splitting a set of cylinders like a v6, inline 6, V8, V or W 12/16.

 

[500AMM]

Many thanks for sharing the technology into this - very interesting!

 

[szvook]

X pipe if large enough is good but most X pipes now are 2 pipes with a small hole. Real X-pipes should be a Y one large center tube then a Y at the end.

Correct and my X pipe was built exactly like that, see attached image. As far as jnes’s exhaust, I was just asking if that was an actual h-pipe crossover, as I’m used to seeing the H or X pipe crossovers on true dual exhausts.

 

[5thscaleracer]

Correct and my X pipe was built exactly like that, see attached image. As far as jnes’s exhaust, I was just asking if that was an actual h-pipe crossover, as I’m used to seeing the H or X pipe crossovers on true dual exhausts.
View attachment 157488

yes this is legit!