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5 hours ago, steveoexige said:

I will try and get a clip uploaded before the 2bular silencer is fitted just so you know I'm not being a lightweight,

:thumbup: Perfect Steve ... Tks ... I really want to hear how "without" your cat ... it must be really special ...

we are waiting for your CLIP 

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Hi Steve, I took the full 2bular “protection” kit and kept the standard 380 back box, and yes its loud with the valve open, amazingly so. Imho the best exhaust noise from an Exige I’ve heard, vis

That's a really beautiful house. I bet your loo roll bill is more than the heating! 

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6 hours ago, steveoexige said:

Incidentally I had a quick look at the engine of the 430 and couldn't believe how heavy the carbon engine lid was compared to the carbon lid on my 380 Sport....I can literally open and close my 380 lid with 2 fingers and yet the 430 Cup needed both hands. 

 

Steve making this point feels ridiculously obvious but maybe it hadn’t dawned on you and apologies if it did.......but the 380 carbon rear access panel has hydraulic rams to assist lift, whereas the Cup models both 380 & 430 have no assistance and are kept vertical with a stay. Both are light of course and maybe yours has no rams?

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27 minutes ago, Jcx said:

The 410 has a stay and no rams too and it does feel heavy compared to the ram-assisted 350 plastic deck. 

Yip - the 410 carbon rear access panel is the same as the one on the 380 & 430 Cup models👍

Can’t seem to shake the feeling that I’m going to end up with one of those on my 380 Sport😬........it’s a thing of beauty👌

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13 hours ago, NANO said:

:thumbup: Perfect Steve ... Tks ... I really want to hear how "without" your cat ... it must be really special ...

we are waiting for your CLIP 

Sry for the thread drift... This can maybe help: Larini manifolds, no cats, stock muffler: https://youtu.be/kCPSazkk-6A

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1 hour ago, Mark030358 said:

That’s loud on the ugly side. Can see why u want to change

I didn’t want to say but I thought that too.......sounds like it’s got a hole in the system!🙉 I know it won’t have but they can sound much nicer than that👍

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Hi Steve ... first of all thank you so much for your 2 clips / videos.

For me:  ... “ F A N T A S T I C / F A B U L O U S

this is a pleasure ... this is for a car like Lotus ... this is from Hyper Car ...

(it is clear that for a trackday there can be problems ... I can understand)

To understand what you mounted exactly

- 2bular "Protection catless" ... manifold without cat and finally OEM 380 ?

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8 hours ago, NANO said:

Hi Steve ... first of all thank you so much for your 2 clips / videos.

For me:  ... “ F A N T A S T I C / F A B U L O U S

this is a pleasure ... this is for a car like Lotus ... this is from Hyper Car ...

 

(it is clear that for a trackday there can be problems ... I can understand)

 

To understand what you mounted exactly

- 2bular "Protection catless" ... manifold without cat and finally OEM 380 ?

Thanks for the compliment Nano but it is just way too loud for me. My wife can hear me coming home from work 3 miles before i actually appear (no joke).

In answer to what I have: I have a 2bular decat manifold and the rest is 380 OEM Sport. Jim is going to weld in his silenced de-cat pipe and we'll see how much of a difference that makes.

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On 13/09/2019 at 19:37, stephenwhyte said:

Steve making this point feels ridiculously obvious but maybe it hadn’t dawned on you and apologies if it did.......but the 380 carbon rear access panel has hydraulic rams to assist lift, whereas the Cup models both 380 & 430 have no assistance and are kept vertical with a stay. Both are light of course and maybe yours has no rams?

You are right, doh, my "one handed lift" was indeed aided by hydraulic rams. I hadn't appreciated the 380 & 430 cup just have a stay bar to hold the lid up.

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15 hours ago, steveoexige said:

In answer to what I have: I have a 2bular decat manifold and the rest is 380 OEM Sport.

Steve, have you had problems with the engine light ( the yellow ) that detects you ( the probe ) that you don't have the cat ?

if so, what did you do?

image.png.a5e23e3c9b053e766517fac50d760bc5.png

 

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Yes I get the engine check light come on after a long'ish drive. I have an OBD port scanner that I just use to read and reset the check light. When I finally go for the full fat Masterblack ECU setup they can code their ECU so it shouldn't show the code at all. 

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On 29/08/2019 at 23:56, Mark030358 said:

Hi Steve,

I took the full 2bular “protection” kit and kept the standard 380 back box, and yes its loud with the valve open, amazingly so. Imho the best exhaust noise from an Exige I’ve heard, visceral is the word I would use, I love it when the valve opens as you floor the car. When I did my Alps trip in June, gunning the car down the German Autobahns the exhaust note is there, but the wind noise was worse with the roof off, to be fair I didn’t feel it was too loud. But each to their own. For sure its no track day system.

What might be interesting is that when I had my conversion done there was another 380 at Komotec, an Essex blue one, the press release car the owner told me. He had Jims “protection” system and Jims back box and for sure was not as loud as the standard 380 box I’m running. In fact I was going to fit one but it didn’t get shipped to KT due to me faffing about.

At the end of the day it depends what you want, either 🤫 or 😈

Here’s mine on the KT dyno, sounds great 😈😈😈😈😈😈😈😈😈

cheers

Mark

25282BD2-9E50-446C-A2B1-1CC689EF0CC7.jpeg

While you Mark, with cat, I believe that this "problem" of the spy that comes on doesn't have it, it doesn't happen to you ... right ?

Cheers & Thanks

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  • 3 months later...

So, after enjoying the TVS1900 for the past couple of months I'm getting a bit too used to its performance. I always knew I'd tinker with it, and after owning 2 previous S2 Exiges and mod'ing the bejeezus out of them it was only a matter of time.

1st set of mods have been bought:

Larger, carbon side scoops from Imran - these look gorgeous from the pics and will go with my carbon roof, wing, sills, spoiler, etc. The problem with buying a car with carbon parts already on it means you have to go ££ carbon parts thereafter!

Bigger bore exhaust downpipe and matching silencer from Jim / 2bular  (I'm hoping my hearing returns once these are fitted). As per usual the welds are so stunning I'd rather hang it on my wall than get it grubby next to the engine.

Komotec EX500 kit. Basically Komotec's chargecooler setup for my TVS1900 super charger. Daniel and I had been talking for a while (about 5 mins after I bought the car in fact) and he was very gracious to sell me his well thought out kit. 

Certainly if I keep the engine standard I'll be able to safely run 525bhp with an aftermarket ECU (next on my shopping list).......but it makes no sense to leave readily available extra engine power from the chargecooled TVS on the shelf....600bhp with forged internals would be on the cards. So I'm on the fence with going the whole hog and buying a set of pistons and rods. My man math logic says to fit uprated rods and pistons whilist its in the workshop having the chargecooler setup fitted. Obv the gearbox will commit suicide, and that's a whole other discussion (Lotus brains - feel free to throw me a bone here?). I'm naively telling myself the OEM box might last a year without any track days before I absolutely have to do something about finding a solution.....maybe if I beg Daniel some more 😗 ?

As for forged engine internals I've used the usual suspects in my previous cars: Carrillo, Mahle, etc so I started to do some digging to price up the parts and that's when I came across an outfit called DP Engine Parts. They fabricate their own very high performance, 1000 bhp + heavy duty drag engine components and have recently had some press due to a world record beating MR2 dragster. Their parts are all forged billet and of a similar price to the bigger, mass produced brands. In any transaction I've always sided with the keener, smaller firms providing the quality is on a par so I'm in discussions with them at the moment. We will see.........

Finally - can anyone recommend an engine builder? Fensport built up my last forged engine for a track GT86 but they don't want to get involved with the Exige world due to other commitments - who can blame them :) 

To be honest I'm not obsessed about using a tuning firm, so no need to recommend a Lotus specialists guys. Our cars run a factory OEM Toyota lump simple engine works.

Chargecooler.jpg

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23 minutes ago, Mark030358 said:

are you sure the standard engine will take 525hp?

Sounds an amazing upgrade, looking forwrd to this :)

 

It should be ok as mines not a track car. Ultimately it is knock that kills these engines. The OEM ECU calculates temps before combustion with the MAF, monitoring knock and O2 sensor readings in the exhaust and EGTs to determine optimal fuel delivery and timing advance/retard on the fly. Heatsoak hugely affects the readings and the ECU compensates as hot air increases knock/detonation which is potentially damaging and also means retarded ignition timing and less power.  

A chargecooler working with the OEM ecu massively helps get more power (as per the Komotec EX460 kit) plus it hugely reduces knock......but a better, aftermarket ECU / chargecooler setup will release slightly more power and more importantly, provide even better knock control. Komotec's EX500 kit running the OEM ecu will make 500 to 525bhp, but throw in the extra brains of a Motec, Link or Masterblack, etc at the same boost it should provide better/more engine control.

I know that the outright numbers are just willy waving pub talk but its always nice to have a figure in mind when you open your wallet to pay for the mods!

Either way I think uprated rods and pistons are the way to go. 

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@steveoexige Just a quick question really... why not just get it all done by Daniel at Komotec? The forged engine that is... in addition to the CC kit?

17 minutes ago, tim_marra said:

So Komotec offer a charge cooled setup which utilises the 'non-CC' TVS1900? That's vey interesting 🤔

They have for a while... @550superfast has been running one I think for near a year inc quite a bit of track time.

KT also offer a kit which upgrades the Exige V6 to the same spec as the 430 Cup Charge Cooler and Charger but with an additional power upgrade to 490 if needed... The Mendig shop is definitely offering a lot more options than you see on their website so always best to give them a call direct ;) 

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