GuyT Posted March 18, 2020 Report Share Posted March 18, 2020 35 minutes ago, Tex said: Hi Guy, it wasn’t actually but your solution looks good, have you got a contact for them ? and does it restrict or reduce power? What i remember seeing was a twin kinked tail pipe which can be adjusted to face down or sideways similar to the single Komotec dB eater. I think the Komotec solution is not for the titanium exhaust I have though Mine was made for me by Maidstone Sports Cars as I couldn't find anything that suited what i was after. It's effectively two Merlin Motorsport Racing Mufflers in a Y configuration. Whilst I haven't put it on a dyno and done before and after, my dyno-arse certainly couldn't detect any difference. Merlin supply them for use of loads of racing cars to get into practice sessions - they assured me they've never had any problems. You can see through it - it's just catching the sound. It's held in place with a bolt - we drilled a small hole in the bottom of the exhaust tip. Done 3 track days with it without any problems at all. I can't be arsed to change the exhaust so this suits me fine. 1 Quote Link to comment Share on other sites More sharing options...
Tex Posted March 18, 2020 Author Report Share Posted March 18, 2020 Cheers Guy, I will give them a bell 👍🏽 Quote Link to comment Share on other sites More sharing options...
TerryCTR Posted March 19, 2020 Report Share Posted March 19, 2020 Drilling a hole in the Ti exhaust 😯 Quote Link to comment Share on other sites More sharing options...
Tex Posted March 19, 2020 Author Report Share Posted March 19, 2020 Exactly, I think that is why Komotec don’t yet have a solution but are apparently working on one Quote Link to comment Share on other sites More sharing options...
BatMobile Posted March 19, 2020 Report Share Posted March 19, 2020 I bought the lotus track exhaust, will just swap it over for track season, gets me on all tracks as quieter than a stock 350 and is repackable. Quote Link to comment Share on other sites More sharing options...
Tex Posted March 19, 2020 Author Report Share Posted March 19, 2020 Probably the best solution, although i prefer having the titanium exhaust wherever possible and would be forever switching them over which isn’t a quick task. As I only need to drop 2 decibels to achieve what I need, the dB eaters appear a better option Quote Link to comment Share on other sites More sharing options...
BatMobile Posted March 19, 2020 Report Share Posted March 19, 2020 Yeah I get that, I managed to get one second hand so for the cost it made sense as I’ll just get it switched over for a track day. it seems all other ideas involve drilling which I don’t like the sound of with a titanium exhaust. Plus they extend quite far which must put pressure on the welds given the speeds and bumps you can get on track as none of these extensions seem to be super light. Quote Link to comment Share on other sites More sharing options...
Popular Post Bibs Posted April 1, 2020 Popular Post Report Share Posted April 1, 2020 3 5 Quote 88 Esprit NA, 89 Esprit Turbo SE, Evora, Evora S, Evora IPS, Evora S IPS, Evora S IPS SR, Evora 400, Elise S1, Elise S1 111s, Evora GT410 Sport Evora NA For forum issues, please contact the Moderators. I will aim to respond to emails/PM's Mon-Fri 9-6 GMT. Link to comment Share on other sites More sharing options...
Nightfire Posted April 1, 2020 Report Share Posted April 1, 2020 (edited) I replaced my titanium exhaust with the Komo Tec https://www.komo-tec.com/de/lotus-exige/mk3-toyota-v6350380/abgassystem/104/edelstahl-sportauspuff-exige-s-v6-evora-s-mit-klappensteuerung?c=884 We tested the Komotec exhaust on race tracks for a year, whether the flap is closed or open, there is no loss of performance. The flap can only be adjusted manually, so it does not open and close automatically. The sound is wonderful, not too loud for the track when the flap is closed. Without loss of performance. brilliant Edited April 1, 2020 by Nightfire Quote Link to comment Share on other sites More sharing options...
Gold FFM C8RKH Posted April 1, 2020 Gold FFM Report Share Posted April 1, 2020 @Nightfire what was the weight difference? Quote Alcohol. Sex. Tobacco. Drugs. Chocolate. Meh! NOTHING in this world is as addictive as an Evora +0. It's not for babies! The first guy to ride a bull for fun, was a true hero. The second man to follow him was truly nuts! Link to comment Share on other sites More sharing options...
Nightfire Posted April 1, 2020 Report Share Posted April 1, 2020 Only 2.5 kilograms, that was very surprising 1 Quote Link to comment Share on other sites More sharing options...
Jack Posted April 1, 2020 Report Share Posted April 1, 2020 31 minutes ago, Nightfire said: I replaced my titanium exhaust with the Komo Tec https://www.komo-tec.com/de/lotus-exige/mk3-toyota-v6350380/abgassystem/104/edelstahl-sportauspuff-exige-s-v6-evora-s-mit-klappensteuerung?c=884 We tested the Komotec exhaust on race tracks for a year, whether the flap is closed or open, there is no loss of performance. The flap can only be adjusted manually, so it does not open and close automatically. The sound is wonderful, not too loud for the track when the flap is closed. Without loss of performance. brilliant Looks like you are running quite rich...any idea what your A/F ratios are? Quote Jack2008 2-Eleven2015 Exige V6 CupR Track videos ... http://www.youtube.com/jackcup2010 Lotus Challenge Series ULTRA Class champion2012 Lotus CUP USA OPEN Class champion Link to comment Share on other sites More sharing options...
Martrack Posted April 1, 2020 Report Share Posted April 1, 2020 (edited) 49 minutes ago, Nightfire said: The sound is wonderful, not too loud for the track when the flap is closed. Without loss of performance. brilliant Any engine temperature difference perhaps when the flap is closed ? Edited April 1, 2020 by Martrack Quote Link to comment Share on other sites More sharing options...
Nightfire Posted April 1, 2020 Report Share Posted April 1, 2020 The throughput is large enough, no changes with the temperatures. 1 hour ago, Jack said: Looks like you are running quite rich...any idea what your A/F ratios are? The picture is very dark, it looks exactly the same as with the titanium exhaust. Quote Link to comment Share on other sites More sharing options...
GazzyFizzle Posted April 1, 2020 Report Share Posted April 1, 2020 I thought the flap automatically opened at certain revs, regardless of the switch position? Quote Link to comment Share on other sites More sharing options...
Woots Posted April 1, 2020 Report Share Posted April 1, 2020 What’s happening with your Ti. Exhaust 😅 Quote Link to comment Share on other sites More sharing options...
Nightfire Posted April 2, 2020 Report Share Posted April 2, 2020 10 hours ago, GazzyFizzle said: I thought the flap automatically opened at certain revs, regardless of the switch position? This is exactly the point where the exhaust valve no longer opens by itself but only manually. This ensures that it never gets too loud for the race track. Quote Link to comment Share on other sites More sharing options...
Tex Posted April 2, 2020 Author Report Share Posted April 2, 2020 Presumably the design of the exhaust Is materially very different from Lotus’s own system which has to open the valve at higher revs to reduce the potential of engine damage. As it’s a KT system it must be ok but I would still feel uneasy at high revs on track having the valve closed Quote Link to comment Share on other sites More sharing options...
Martrack Posted April 2, 2020 Report Share Posted April 2, 2020 @Nightfire By curiosity, why you did not go for the official Lotus Track Exhaust ? Quote Link to comment Share on other sites More sharing options...
BatMobile Posted April 3, 2020 Report Share Posted April 3, 2020 I went for the official lotus track exhaust, gets you on all tracks and is repackable Quote Link to comment Share on other sites More sharing options...
Martrack Posted April 3, 2020 Report Share Posted April 3, 2020 And rather enjoyable according to a previous discussion starting there : Do you feel the same @BatMobile ? Do you miss / regret your previous (titanium ?) exhaust ? Many thanks for your feedback 👍 Quote Link to comment Share on other sites More sharing options...
BatMobile Posted April 3, 2020 Report Share Posted April 3, 2020 I bought his track exhaust so have both. The ti exhaust is amazing and for me is the one that will be on the car 99% of the time. I will pay backontrack to swap them over when needed. 2 Quote Link to comment Share on other sites More sharing options...
Tex Posted April 4, 2020 Author Report Share Posted April 4, 2020 The Exige Cup 430 is rapid and well sorted as standard and you need to spend serious money to get up to the power and down to the low weight that it provides from other models. So Is anyone doing any mods or contemplating any to improve on it’s track performance? Quote Link to comment Share on other sites More sharing options...
Edinburgh 111s Posted April 4, 2020 Report Share Posted April 4, 2020 The best investment is driver training ....😉 2 Quote Link to comment Share on other sites More sharing options...
Tex Posted April 4, 2020 Author Report Share Posted April 4, 2020 Are you an expert on the subject ? 😉 Quote Link to comment Share on other sites More sharing options...
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