ChrisBuer 88 Posted August 3, 2015 Report Share Posted August 3, 2015 (edited) It's here!' My 2bular valved backbox!! Firstly a massive thank you to Jim Valentine for building such a wonderful system. It really is a Jekyll and Hyde system. With the valve shut its no louder than the stock system so very civilised. However with the valve open....well it's just immense!! There is no silencing with this setting so it's a straight through Here are a few photos of the 100mm carbon tips and a quick video. The video doesn't do it justice as it really comes on song when you open it up on the move. Static blips are ok but it's really got a wonderful note when going through the gears Video here - http://youtu.be/_sGnxGVnajo Edited August 3, 2015 by ChrisBuer Quote Link to post Share on other sites
Bibs 11,399 Posted August 3, 2015 Report Share Posted August 3, 2015 Sounds lovely! Saw your car up on the ramps on Saturday, it's nice and clean underneath 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 post Share on other sites
simon mac 74 Posted August 3, 2015 Report Share Posted August 3, 2015 Sounds lovely! Out of interest (can you tell I'm tempted ) any warranty implications? Quote Link to post Share on other sites
Stubox 564 Posted August 3, 2015 Report Share Posted August 3, 2015 Sounds rather fruity , love it must now chase Jim Quote Black n gold Link to post Share on other sites
The Pits 4,410 Posted August 3, 2015 Report Share Posted August 3, 2015 Wow fantastic contrast between the valve shut and valve open sound. Would love to hear that in real life. Are you bringing the car to Brands on the 15th/16th? Quote Link to post Share on other sites
stratosboy 46 Posted August 3, 2015 Report Share Posted August 3, 2015 very nice, both visually and....that sound! - I want one now for my Exige Quote That's just fine Link to post Share on other sites
philcool 162 Posted August 3, 2015 Report Share Posted August 3, 2015 Very nice indeed sounds great Quote Link to post Share on other sites
Neal H 899 Posted August 3, 2015 Report Share Posted August 3, 2015 How does the exhaust valve work? On the standard system it's automatic - high rpm in Tour, medium rpm in Sport and permanently open in Race/Off. Does it work the same way, or do you have to manually switch it? It sounds ace, and the twin pipe look is so much better than the square box on the end of the standard system. Quote Link to post Share on other sites
TonyKL 133 Posted August 3, 2015 Report Share Posted August 3, 2015 Sounds great, looking at the first picture I thought you'd got a non-standard rear wing! Quote Link to post Share on other sites
ChrisBuer 88 Posted August 3, 2015 Author Report Share Posted August 3, 2015 Wow fantastic contrast between the valve shut and valve open sound. Would love to hear that in real life. Are you bringing the car to Brands on the 15th/16th? What's on the 15th and 16th? I could possibly bring it yes How does the exhaust valve work? On the standard system it's automatic - high rpm in Tour, medium rpm in Sport and permanently open in Race/Off. Does it work the same way, or do you have to manually switch it? It sounds ace, and the twin pipe look is so much better than the square box on the end of the standard system. Thw valve works exactly the same way as the stock system. The only difference is that there is a much bigger sound difference between the sound with the valve open compared to shut. It almost sounds like a completely different car with the valve shut and the open. When open it also really crackles, burbles and pops especially when running down to low revs Sounds lovely! Out of interest (can you tell I'm tempted ) any warranty implications? Shouldn't be a problem for just a backbox. If you did manifolds and downpipes that would be a different matter though. Quote Link to post Share on other sites
Fortis 31 Posted August 3, 2015 Report Share Posted August 3, 2015 Sounds really good Chris Quote Link to post Share on other sites
ChrisBuer 88 Posted August 3, 2015 Author Report Share Posted August 3, 2015 Sounds great, looking at the first picture I thought you'd got a non-standard rear wing! No the rear wing is completely standard Quote Link to post Share on other sites
The Pits 4,410 Posted August 3, 2015 Report Share Posted August 3, 2015 Lotus festival Brands Hatch 15th/16th August. Quote Link to post Share on other sites
ChrisBuer 88 Posted August 3, 2015 Author Report Share Posted August 3, 2015 Lotus festival Brands Hatch 15th/16th August. I'll see what I can do! Is there a TLF area at all? Quote Link to post Share on other sites
Buddsy 1,643 Posted August 3, 2015 Report Share Posted August 3, 2015 That rear is Epic. Love the colour with the matching (?) Lotus and Exige. Buddsy Quote "Belief is the enemy of knowing" - Crrow777 Link to post Share on other sites
Neal H 899 Posted August 4, 2015 Report Share Posted August 4, 2015 What added advantages would you expect to get from manifolds and downpipes? Obviously that adds significantly to the cost. Also curious whether there are any noticeable differences to performance or driveability - freer reving, throttle response etc.. Quote Link to post Share on other sites
qwerty123 58 Posted August 4, 2015 Report Share Posted August 4, 2015 Clarkson "That's a dirty, dirty noise!" /Clarkson 1 Quote Link to post Share on other sites
ChrisBuer 88 Posted August 4, 2015 Author Report Share Posted August 4, 2015 What added advantages would you expect to get from manifolds and downpipes? Obviously that adds significantly to the cost. Also curious whether there are any noticeable differences to performance or driveability - freer reving, throttle response etc.. Apparently better performance (I've been quoted 50-70bhp with proper mapping), more free revving, oh and more noise! Honestly though, you need to hear the backbox first. It's far louder than I expected with the valve open and it's a great sound! With it shut its no louder than stock apart from a very slightly deeper bass note. Put it this way, I drove out last night for some petrol and going out down one road I had the valve shut and a small group of people outside a bar didn't bat an eyelid. No reaction at all. After getting fuel, I looped back on the same road around and opened the valve up at the top of the street. I didn't accelerate hard or do anything different to make more noise, apart from opening the valve and I could see the group outside the bar all looking around as to where the thunder and crackling noise were coming from Not that I've got it to attract attention. I just like the sound but it's not the sort of car that flies under the radar anyway so a bit more noise just adds to the fun Quote Link to post Share on other sites
Gold FFM C8RKH 6,422 Posted August 4, 2015 Gold FFM Report Share Posted August 4, 2015 It's here!' My 2bular valved backbox!! Firstly a massive thank you to Jim Valentine for building such a wonderful system. It really is a Jekyll and Hyde system. With the valve shut its no louder than the stock system so very civilised. However with the valve open....well it's just immense!! There is no silencing with this setting so it's a straight through Here are a few photos of the 100mm carbon tips and a quick video. The video doesn't do it justice as it really comes on song when you open it up on the move. Static blips are ok but it's really got a wonderful note when going through the gears Video here - http://youtu.be/_sGnxGVnajo That is one beautiful rear end my man! hahaha. Love the colour, really special. 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 post Share on other sites
ChrisBuer 88 Posted August 5, 2015 Author Report Share Posted August 5, 2015 I'll be at the Lotus Festival on Sunday if anyone wants to listen to it in person Quote Link to post Share on other sites
PaulLF1 140 Posted August 5, 2015 Report Share Posted August 5, 2015 Very impressive, how long did it take you to fit? Are you getting it re-mapped? Be a shame not to take advantage of those extra ponies. Quote Link to post Share on other sites
TonyKL 133 Posted August 5, 2015 Report Share Posted August 5, 2015 Wondering how easy these are to fit, out like a nice sound but be able to swap out for standard for trackdays Quote Link to post Share on other sites
ChrisBuer 88 Posted August 5, 2015 Author Report Share Posted August 5, 2015 Very impressive, how long did it take you to fit? Are you getting it re-mapped? Be a shame not to take advantage of those extra ponies. Fitting was straight-forward, but I don't know how long it took as it was put on as part of my running in service at B&C. The system is just the back-box only, so no need to remap and any small variations will be picked up when the ECU re-learns anyway Quote Link to post Share on other sites
PaulLF1 140 Posted August 5, 2015 Report Share Posted August 5, 2015 Thanks, did B&C charge to fit the back-box or did it all come under the 3 year free servicing? Quote Link to post Share on other sites
ChrisBuer 88 Posted August 5, 2015 Author Report Share Posted August 5, 2015 Thanks, did B&C charge to fit the back-box or did it all come under the 3 year free servicing? There was a small charge to fit. Not much mind you. Quote Link to post Share on other sites
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