stainless exhaust

[renckensj2]

I would like to weld a stainless exhaust for my Esprit but how looks an esprit exhaust on the inside?

Can someone tell me this so that I do not have to strip down my current exhaust.

Regards, Jos

[bzguy]

I would like to weld a stainless exhaust for my Esprit but how looks an esprit exhaust on the inside?

Can someone tell me this so that I do not have to strip down my current exhaust.

Regards, Jos

Hi Jos, welcome to the forum ! Aha, nice to see a Belgian

What do you want to do with your current exhaust ?

I've just installed a new exhaust, If you want some info, just ask me

PS : you've got PM

[Jeanvm]

Hi Jos, welcome to the forum ! Aha, nice to see a Belgian

What do you want to do with your current exhaust ?

I've just installed a new exhaust, If you want some info, just ask me

PS : you've got PM

Hello Jos & bzguy,

I don't belief there is any drawing of this. Not that easy to make one you need the right size and the problem to make a nice sound. But you can find SS exhaust by SJSportscars or Larini.

Chao, prosit,

Jean

[bzguy]

Hello Jos & bzguy,

I don't belief there is any drawing of this. Not that easy to make one you need the right size and the problem to make a nice sound. But you can find SS exhaust by SJSportscars or Larini.

Chao, prosit,

Jean

Hi Jean, indeed, I've put a twin exhaust from Larini (ordered via Marcus from PUK). Bosbon as well has the same exhaust, but still needs to modify a bit in order to make it fit.

Nice to see another Belgian guy, we should organise a meeting

Where from Limburg are you Jean ? I'm residing in Aarschot (E314)

[renckensj2]

Indeed we should organise a meeting. I am from Tessenderlo.

About my current exhaust: I want to keep it on the car until I have a new one so that I can still drive with my Lotus esprit, after replacement it will be for the garbage. As such I can not open the old exhaust for looking inside. I want to keep the period that the car is out of service as short as possible.

[Artie]

Jos,

Are you referring to the internal structure of the muffler itself? This is of little consequence if so, you want an exhaust that flows more freely and gives less back pressure thus the turbo can really breath and the engine sounds glorious!

Artie

[percyporsche]

Just fitted a Janspeed exhaust from Esprit Engineering and it fits great.Had my old one welded up but it just failed again so went for a new one.

[renckensj2]

Jos,

Are you referring to the internal structure of the muffler itself? This is of little consequence if so, you want an exhaust that flows more freely and gives less back pressure thus the turbo can really breath and the engine sounds glorious!

Artie

Arti,

indeed I refer to this internal structure.

As I can read from the different reactions it does not matter so much and as long as no fire is coming out of the exhaust and the sound is not too loud I can try to weld a muffler myself. I will for sure have a look to the "Larini" and "Janspeed" exhausts as well in order to decide whether it is worthwile to do all this work.

Regards

Jos

[Artie]

Jos,

Well, flames definitely come out of mine! The only real factor is your preference to looks and sound! If you can live with a single pass muffler this will offer the best performance gain. Nice thing for you is you are in Europe so you can easily find a Specialist who sells a bolt on exhaust system. How far are you from Ramspott and Brandt in Germany? Good luck!

Artie

[bzguy]

Jos,

Well, flames definitely come out of mine! The only real factor is your preference to looks and sound! If you can live with a single pass muffler this will offer the best performance gain. Nice thing for you is you are in Europe so you can easily find a Specialist who sells a bolt on exhaust system. How far are you from Ramspott and Brandt in Germany? Good luck!

Artie

I'd go ( as bosbon and I did ) for a Larini exhaust from PUK. Not much more expensive than just a new muffler and lifetime warranty !

Best choice imho.

[fjmuurling]

Go for the Larini exhaust. One thing, before fitting this exhaust modify the brackets with a "shertsplaat" (sorry don't know the english word for it, weld a small plate in the open part of the bracket) in order to prevent cracking.

Freek

[Jeanvm]

Indeed we should organise a meeting. I am from Tessenderlo.

About my current exhaust: I want to keep it on the car until I have a new one so that I can still drive with my Lotus esprit, after replacement it will be for the garbage. As such I can not open the old exhaust for looking inside. I want to keep the period that the car is out of service as short as possible.

Hello Hans & Jos,

I am not from that far, Houthalen (midden Limburg) And can it be I have seen you (Hans) at a meeting in Zolder (terlame) some years ago? It was Free racing Lotus day. I was there with mine white S1. I have this year make me a new 912S engine for the S1 but I am struggle a little with a unstable idle.

When this is solved I will take some pictures and will present me on the forum.

And a meeting? Sure, when everything comes together

Cheers, prosit,

Jean

[renckensj2]

Here is the end (?) of the story:

When I opened the old muffler I was surprised about the internal condition. The outside was completely rusty but the inside was in good condition. So I decided to re-use the inside pipes and to replace the outside shell by a stainless steel one.

this is how an original muffler looks inside, the steelwool for the sound absorption was almost all gone and the shield between the 2 pipes was damaged!

after removing the external rusty shell

this is the new shell in stainless steel

note also the stainless steel plate between the 2 pipes, both pipes are by this way in 2 different compartments like original.

the original steelwool for the sound absorption is replaced by rockwool (fireclass A1: it can not burn, no smoke, etc....), initially I bought some steelwool and tested its fire resistance but it burned like hell, so I decided to use glassinsulation.

final result: almost an original muffler but with a stainless steel cover for a price of around 120 Euro