New Forum Member - Elise 111R Sports Exhaust ?

[Ed Black 111R]

Firstly, just like to introduce myself to the forum. I have been a Lotus owner for the past 5 years, and to date have owned Elise S1, S2 ST, and Esprit S4s and V8 variants. I did go to the other side and bought a Porsche Boxster S last year, but didn't like it, and so recently bought a Starlight Black 2005 111R.

I am looking to put a sports exhaust on the car, as the standard one is shameful really for a sports car - why don't Lotus put a decent exhaust on in the first place? Anyway I am looking at either a Janspeed or Stage 2 Lotus Sports. I have spoken to a guy at PTP (UK supplier of Janspeed, and they have advised that the undertray needs modification to accomodate either the Janspeed or Stage 2. Is this easy, how is it done, and has anyone done it DIY? Also, how would the Janspeed affect a warranty claim - if at all. Do you use the original gasket with some sealer, or use new gasket?

If anyone is interested PTP actually have a offer on at the minute for the 111R sports exhaust - it is £323 inc VAT, usual price is £320 + VAT. They have quoted me 2 hours to fit the exhaust due to the undertray mods.

Many thanks guys,

Ed.

[just1]

Hi there ed and welcome, for me on the 111r i would look at either a stage 2 or a larini, we had all of the options pretty much at our recent airfield day at north weald, including the stage 1 and 2, as well as the new janspeed and Larini.

Stage 2 is a little loud on a long run but sounds awsome especially on the overrun but the Larini is only really loud when you are putting your foot in then i quietens down alot, I have a Larini on my kseries elise at the moment and love it. Might be going over to something else very soon though!!!

[alimac]

Hi Ed welcome ,Am looking too.........I Have 111r have you the threads and contact details for the suppliers????

[jke11y]

I have stage 2 on my Exige and love it. Great noise. Not heard any others though so cant compare, but doubt you`d go wrong with any choice.

[Ed Black 111R]

Hi,
Thanks for the replies.
If I go for the Stage 2 will I still need to modify the undertray, and how is this done?
PTP is based in Hinkley (Leics), ask for Steve on 01455 622229, he was most helpful when I spoke to him. I have a Excel attachment which shows the power gains for the Janspeed, and they are quite impressive over the standard exhaust. 10BHP gain at 7500 rpm. PTP are the main Janspeed supplier, and have done a lot of work with Lotus/Elise's over the years. It is PTP that have advised me that the undertray needs modifying, which is putting me off doing the job myself. Although I do like to tinker with my cars.
Cheers,
Ed.

[alimac]

Ed Black 111R said:

Hi, Thanks for the replies. If I go for the Stage 2 will I still need to modify the undertray, and how is this done? PTP is based in Hinkley (Leics), ask for Steve on 01455 622229, he was most helpful when I spoke to him. I have a Excel attachment which shows the power gains for the Janspeed, and they are quite impressive over the standard exhaust. 10BHP gain at 7500 rpm. PTP are the main Janspeed supplier, and have done a lot of work with Lotus/Elise's over the years. It is PTP that have advised me that the undertray needs modifying, which is putting me off doing the job myself. Although I do like to tinker with my cars. Cheers, Ed.

Thanks Ed (Wheres my cheque book?)

[bogie]

10bhp they say? ...dont they claim 16bhp for the induction kit too?

...funny that on a recent rolling road day, all the 111Rs with exhaust/induction kit were making within 3-5bhp of std cars...some were even worse than std cars.

...dont believe the hype

if you fit and exhaust/induction kit just for the noise then you wont be disappointed ....if all you had to do to gain 25bhp was put and exhaust/induction kit on why do Lotus bother with a supercharger on the Exige S?

[bogie]

oh another - tip...have the car on an independant RR first, then get mods, then go back again...then you will see for real what youve got

...Ive seen cars that have been remapped at the RR supplying the map...make 60bhp more..then go to 3 other roads and its only 30bhp more

[Ed Black 111R]

Bogie - I agree with what you are saying about the power increases. I only saw about 8 BHP with a Janspeed, Cat Replacement, ITG induction on my S2 ST. The differences between RR can also be significant, I saw this on my Esprit S4s.

Anyway back to the point - can anyone help with my initial questions regarding the modifications to the undertray. I would really appreciate some help/advice on this, as I don't want to buy one, with the hope of fitting it myself to get in a real mess with the undertray.

Many thanks,

Ed.

[Davey S2]

Stage 2

Here is a clip of one on my car at 140 mph www.pistonheads.tv/clip454

Only need to cut bigger holes in the undertray which any garage will be able to do.

[bogie]

dumb question - but can you actually do trackdays with a stage 2 and induction kit? ...how loud is it?

[Ed Black 111R]

Nice Motor Davey - and awesome sound/clip.

Would I not be able to cut the undertray myself - or are specialist tools required. I just thought with it being aluminium, and pretty thin at that, it should be relatively easy to cut. Or am I missing something. Is there a template anywhere that I can look at, showing the increased opening?

Bogie - from what I understand, the Stage 2 will not meet track day noise restrictions, which is why the Larini, Janspeed, Quicksilver etc have all been developed with noise levels between the Stage 1 and 2 exhaust systems. I just want a LOUD exhaust, so the car sounds like it looks!

Cheers,

Ed.

[bogie]

thats what I heard too - I swapped a std Janspeed for a Janspeed Roadsport (slightly quieter) just after I had the Honda put in as It was too loud for trackdays..the new Janspeed is much better.....still sounds great from outside, but less noise inside on part throttle and passes noise limits on any UK track

[GTRene]

bogie said:

thats what I heard too - I swapped a std Janspeed for a Janspeed Roadsport (slightly quieter) just after I had the Honda put in as It was too loud for trackdays..the new Janspeed is much better.....still sounds great from outside, but less noise inside on part throttle and passes noise limits on any UK track

Very importand, loud noise can be fun(in the middle of nowhere) but I get tired of it and you can't get on some tracks? so my choise would also be a bit quiter and on long runs no sounds(ringing bells?) in my ears when I try to sleap at night also the neighbours like me more you also have to think a bit on other people, so a good compremise, not to loud and not to quiet and racy on full throttle?
So my quistion is when I have a Exige S2 and do a huricane induction kit, and a decatpipe , and stage one exhaust, and posseble a bigger bore manifold...will i still pas noise limits?
Anyone here have done the same?
GTRene

[bogie]

probably not with the decat pipe...must admit, I had a decat on my SC K series...for about 3 months...then got fed up with the noise, the build of crap on the rear clam and the hassle come MOT time....not worth the hassle IMO ...if you really want the noise you can achieve that with a different exhaust and the power gains are neglible 1-2bhp if you are lucky

[GTRene]

and a sportscat? so good for MOT? and bigger bore?
Ow and I would not alone go for the sound also I want easy power...so bigger bore pipes(a bit deeper sound and a little bit power) also induction kit(a bit more sound in car and a little bit power) and ofcorse a SC and hopefully around 260 real hp and ofcorse good brakes and set up...you can keep the radio/cd players I will have a smartphone with satnav? and radio/mp3 build in(so all in one phone)! so find my way easely and when I want I can listen to the music.
GTRene


>> Edited by GTRene on Tuesday 14th March 19:30

[Davey S2]

Few more for you Ed

www.pistonheads.tv/clip438

www.pistonheads.tv/clip437

and now one showing the difference between a quick car and a supercar. Ruf GT2 belonging to GuyR, a member here. He hit 203mph on the day. Awesome bit of machinery

www.pistonheads.tv/clip636

[Davey S2]

Ed Black 111R said:

Nice Motor Davey - and awesome sound/clip. Would I not be able to cut the undertray myself - or are specialist tools required. I just thought with it being aluminium, and pretty thin at that, it should be relatively easy to cut. Or am I missing something. Is there a template anywhere that I can look at, showing the increased opening? Cheers, Ed.

Ed any garage should be able to do it for you although the Lotus garages have a templeat to make it nice and neat. If you but one from the dealers just get them to fit it for you.

[steff]

All you need to do is widen the original exhaust hole in the under tray.

Take the undertray off and measure the stage 2, then just trim a bit off the tray.

easy*


















* dont blame me if your rear undertray ends up looking like swiss cheese

[moominter]

Short clip of my Exige S2 with a Quicksilver exhaust and an ITG induction kit: www.video.google.com/videoplay?docid=-8411564355696660254