Bespoke Titanium Exhaust - Dual Exit - Page 3 - LotusTalk - The Lotus Cars Community
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post #41 of 144 (permalink) Old 04-15-2019, 08:30 AM
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Originally Posted by addliteness View Post
Some of the decisions were driven by what I was looking for and others by what was already on the market.
The exhaust looks amazing.

Were you previously running the Larini SE Style muffler with a REV300 or REV400?

That is my current setup. How does the sound level compare to the Larini SE Style muffler with the REV400?

Thanks!
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post #42 of 144 (permalink) Old 04-15-2019, 01:53 PM
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Quote:
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are the mufflers repackable?
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Originally Posted by oldmansan View Post
I'm assuming it isn't repackable,
is a repackable aftermarket muffler a big deal for this community?

coming from other communities, I've never noticed it being anything of serious interest until i started posting on this forum...

as someone with a custom exhaust setup thats been run for about 8 years now & isnt repackable... i dont ever feel like i'm missing out on anything quality/sound/performance wise. & honestly i feel like i have a less finicky setup compared to those with mufflers that need service/packing.




nice looking piece though... im always a fan of really well welded segmented bends
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post #43 of 144 (permalink) Old 04-15-2019, 02:37 PM
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Originally Posted by driftwood View Post
is a repackable aftermarket muffler a big deal for this community?
I have thought the same, but in this case, after the group buy is over you will probably never see this exhaust again, so what happens when you do need to replace the muffler on an expensive Titanium exhaust? I assume that is the reason for the question is long term maintenance. A muffler like the Larini SE I would hope you could still buy in 8 yrs.... But I did buy a couple back ups of it just incase. Since I am using it with a REV400. So far about 3K miles with no issue.

'05 Lotus Elise - Saffron Yellow | Sport Pack | Touring Pack | REV400 - 5.6 lbs/hp | ACT HDSS Clutch | DMC Header | Sport Cat | Larini SE Exhaust | Monolites/R888R | BWR Double-Adjustable Shocks | shiftR111/LETSLA/SSC Cables | Shorai Lithium-Iron Battery
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post #44 of 144 (permalink) Old 04-15-2019, 02:53 PM
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Quote:
Originally Posted by driftwood View Post
is a repackable aftermarket muffler a big deal for this community?

coming from other communities, I've never noticed it being anything of serious interest until i started posting on this forum...

as someone with a custom exhaust setup thats been run for about 8 years now & isnt repackable... i dont ever feel like i'm missing out on anything quality/sound/performance wise. & honestly i feel like i have a less finicky setup compared to those with mufflers that need service/packing.




nice looking piece though... im always a fan of really well welded segmented bends
$2500 (let's not quibble about $5) for an exhaust is quite steep, but to not be able to service it when needed doesn't seem like a good idea.

San

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post #45 of 144 (permalink) Old 04-16-2019, 07:12 AM
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$2500 (let's not quibble about $5) for an exhaust is quite steep, but to not be able to service it when needed doesn't seem like a good idea.

San
i guess thats part of my question then... I have an unservicable exhuast setup (vibrant stainless straight through resonated muffler capped by stainless piping) thats gone through 8 summer seasons & over 30k miles... still sounds & performs like the day I had it made (not a single broken hanger either lol). I've had borla/magnaflow/ect on other toy cars in the past & those have also been non-serviceable setups & have also never needed attention in the entire life cycle I've had them installed.

does an exhaust even need to be serviceable outside of quality piping/finish? sounds more like personal preference then a necessity to me. & I guess when it comes to a quality exhaust setup, the last thing i want to have to do is 'service it' after a certain mileage point . i guess maybe i need to dive a little deeper on the benefits of repackable exhausts in order to understand?
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post #46 of 144 (permalink) Old 04-16-2019, 08:25 AM
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The main reason muffler/silencers need to be serviced in our Eliges is that under sustained engine load (especially in higher HP car setups during tracking) the fiberglass/steel wool sound insulation will start to deteriorate and you'll eventually be left with an empty/burnt out can. That's why there are repack kits.

Here's another question to tack onto my (as of yet unanswered) list above - what's the diameter of the muffler cans and their related tips?

Thanks!
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post #47 of 144 (permalink) Old 04-16-2019, 02:14 PM Thread Starter
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Nice work!

I currently have a BOE RevX supercharger and a custom 2bular header running through a 3" BOE SilentTouch muffler.

Questions:

  • What does the sound insulation consist of / are the mufflers repackable?
  • Can it be manufactured with a 3" intake pipe up until the dual separation point so it's compatible with my 385hp+ setup?
  • Is the 5 lb. weight rating with the tips installed? Everything as pictured?

I would definitely order it with just the tips "blued" - that rainbow effect is just too much IMHO.

Thanks!
The mufflers are more the resonator style, so not intended nor necessary to be repackable.

The jig is designed to work with the stock cat and creating a 3" intake would mean a new jig. This area is very tight as it has to fit under the left exhaust tip, so I'm not sure it's possible to make it work.

Millionaire Racing is open to another custom exhaust, but the +$3k to build.

Can be left polished or only a portion blued. This was about showing what's possible.

Your question about weight lead me to double check the conversion, so consider this a correction. Weight is actually 7lbs. I will update my original post. My apologies, I hope no one will see this as an attempt to mislead on my part.

C
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post #48 of 144 (permalink) Old 04-16-2019, 02:18 PM Thread Starter
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Looks way better without rear panel
Sure does.
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post #49 of 144 (permalink) Old 04-16-2019, 02:21 PM Thread Starter
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Originally Posted by XtinctElise View Post
The exhaust looks amazing.

Were you previously running the Larini SE Style muffler with a REV300 or REV400?

That is my current setup. How does the sound level compare to the Larini SE Style muffler with the REV400?

Thanks!
I was running the Larini with REV300.

It's louder. Not sure how to quantify that for you. I'm loving the pops though. The Larini is great, but I never really got that with theirs.
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post #50 of 144 (permalink) Old 04-16-2019, 02:22 PM Thread Starter
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Originally Posted by driftwood View Post
is a repackable aftermarket muffler a big deal for this community?

coming from other communities, I've never noticed it being anything of serious interest until i started posting on this forum...

as someone with a custom exhaust setup thats been run for about 8 years now & isnt repackable... i dont ever feel like i'm missing out on anything quality/sound/performance wise. & honestly i feel like i have a less finicky setup compared to those with mufflers that need service/packing.




nice looking piece though... im always a fan of really well welded segmented bends
Thanks for the feedback. Glad you like it. Labour of love.
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post #51 of 144 (permalink) Old 04-16-2019, 02:26 PM Thread Starter
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Originally Posted by XtinctElise View Post
I have thought the same, but in this case, after the group buy is over you will probably never see this exhaust again, so what happens when you do need to replace the muffler on an expensive Titanium exhaust? I assume that is the reason for the question is long term maintenance. A muffler like the Larini SE I would hope you could still buy in 8 yrs.... But I did buy a couple back ups of it just incase. Since I am using it with a REV400. So far about 3K miles with no issue.
The muffler is really a resonator in this application, so repacking is generally a consideration.

The plan is for this to remain available for some time. The hard part was the jigs for production. Once those are in place, it's repeatable. The owner of Millionaire Racing has been in the performance parts business for a long time.

Regarding the Larini, again, they're great, but I don't think they're repackable are they? I went into my purchase of the Larini knowing that it would have a finite life with my supercharger set-up.

C
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post #52 of 144 (permalink) Old 04-16-2019, 02:27 PM
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Originally Posted by addliteness View Post
I was running the Larini with REV300.



It's louder. Not sure how to quantify that for you. I'm loving the pops though. The Larini is great, but I never really got that with theirs.


How old was the Larini? And how long has it been on the car s/cíd?

My Larini has gotten rather loud. Donít really want louder. But this is gorgeous.


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post #53 of 144 (permalink) Old 04-16-2019, 02:29 PM Thread Starter
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Originally Posted by darkSol View Post
The main reason muffler/silencers need to be serviced in our Eliges is that under sustained engine load (especially in higher HP car setups during tracking) the fiberglass/steel wool sound insulation will start to deteriorate and you'll eventually be left with an empty/burnt out can. That's why there are repack kits.

Here's another question to tack onto my (as of yet unanswered) list above - what's the diameter of the muffler cans and their related tips?

Thanks!
I can probably measure both the cans and tips when I have the car out on the weekend.

C
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post #54 of 144 (permalink) Old 04-16-2019, 04:20 PM
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I can probably measure both the cans and tips when I have the car out on the weekend.

C
Thanks man! Looking forward to those loudness numbers :-)
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post #55 of 144 (permalink) Old 04-16-2019, 05:17 PM
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Very interested also!! Will be a great match up to the header and cat delete I just purchased. Little nervous on how loud it will be as others are.
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post #56 of 144 (permalink) Old 04-16-2019, 07:47 PM
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Very interested also!! Will be a great match up to the header and cat delete I just purchased. Little nervous on how loud it will be as others are.
Then just put your cat back on.
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post #57 of 144 (permalink) Old 04-17-2019, 02:45 PM
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Wow, that looks awesome!

My 2bular 7x18 GT3 Ti exhaust is 10lbs.
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** save ~10 lbs gain 1 hp ** EQ: Y=(190*X) / (1984-X) where Y is (HP) and X is (lbs)

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post #58 of 144 (permalink) Old 04-19-2019, 11:50 AM
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Would this work on the Exige or is the Exige exhaust touting different?
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post #59 of 144 (permalink) Old 04-19-2019, 12:59 PM
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looking from the pics and comparing to my Exige, it looks like it's identical and will work on an Exige... (I hope it will work, I've already paid for one!)

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post #60 of 144 (permalink) Old 04-19-2019, 01:22 PM
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looking from the pics and comparing to my Exige, it looks like it's identical and will work on an Exige... (I hope it will work, I've already paid for one!)
I have an exige too...didn't think to ask that question! I'm running the euro grill on my exige, afaik there's no elise/exige specific version of that? If so then the tips at least should align.
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