I thought I would start this new thread and keep you guys updated on what is going on inside my tiny little head!This is the reply to my question to Janspeed " Is your ECU in our Exige as you built the engines?"Dear Mr.KeenanWe did manufacture the engine for Lotus for the Exige program, however allof the finalin-car and performance engine mapping was carried out by Lotus using theirown ECU and mapping software. We do not have access to this software, andeven if we did we would be allowed to modify it because of our agreementswith Lotus. If you believe that you are having problems with either the OEMor Lotus aftermarket equipment, please contact LOTUS direct.Frank SwanstonLotus say!"Dear Mr. Keenan,> > To help me answer your questions, could you please provide the following:> > - The part no. of the 190 kit with which you were supplied.> - The power figures that were recorded.> - Has the air intake resonator valve been removed?> - Has the MAP sensor been correctly re-connected?> > The ECU is calibrated (mapped) by Lotus specifically for this application.> > Yours sincerely,> > Dave Massey - Technical Service> My question to him was:Subject: 190 Kit anddd upgrades.> > Hi there. Please Help!> > My name is Keenan and I own an Exige. I have recently had the 190 kit> fitted and the SS exhaust. I have had my car tested on a rolling road and> am disappointed with the results. I understand that rolling roads are> inaccurate to a degree but the one I used was only calibrated recently and> we had three runs, all with the same results. There is jerkiness up to> 3000> rpm and black sooting on the tail pipe. My local chap says that it needs> mapping and the fuelling sorted out in order to get to 190 bhp. I have> emailed Janspeed who I am informed build the engines to ask them if the> ECU> is Mapable and have not had a response. Any words of wisdom would be> greatly> appreciated.> > Car specs:> 3000 miles> 190 kit> Cat bypass> SS exhaust> Breather system with catch tank.> > Taff at SGT in Maidenhead did the work.>I spoke with Mr “K” engine himself last night via the web and with an ecu manufacturer yesterday by phone. The two chaps are acnowleged for being the best at what they do. I have a bit of a project on and as soon as I get full details on Price and output I will pass the info on Immidiatly. If you are contemplating putting a 190 kit on your car wait a week before making that desision. Watch this space. for some good value BHP. [image]http://www.exiges.com/ubb/NonCGI/images/icons/grin.gif[/image]
I’ve been thinking about purchasing an Exige recently. I think the best way to get the car up from 177Bhp is:1) Cat replacement pipe - ï¿½502) EBD manifold (Have one already on my S160 - recommended) - ï¿½3503) Emerald 32Bit ECU - ï¿½5994) May need the 101 pulleyThat should give:a) Smooth 900-1000rpm tickoverb) Huge increase in mid range torquec) Real 185 ish BHPd) The ECU comes with a output for a change up light - Just wire in to the dash somewhereBuying the Lotus 190ECU and all the other junk seems a waste of time to me - They still have a crap map for the ECU. (My S160 is even worse at low revs!) The EBD manifold will allow the engine to produce more mid range with the Lotus 190ECU if you already have one, but to get the full advantage you’ll need a re-mappable ECU like the Emerald. Fortunately lots of people have already mapped in a standard VHPD engine so you won’t have to go and have a rolling road session to have a customised map for your spec.So for about a grand you’ll have a much nicer engine to drive that the Lotus 190 conversion, and if you decide to have the head ported/wilder cams fitted then the ECU can handle all of that and just requie a re-mapping.Sorted.
Agreed, although doing the above non-Lotus-approved mods will invalidate your warranty.If anything on your engine goes POP and Lotus won’t give a damn (and neither will anyone else). Caveat Emptor.
Hang on there Guys - what about invalidating your warranties by fitting “non-approved” parts?Sorry to appear a party pooper - but I’ve only got your own best interests in mind [image]http://www.exiges.com/ubb/NonCGI/images/icons/grin.gif[/image]Perhaps it’s best to wait for 12 months?
har har, beat you by 2 mins [image]http://www.exiges.com/ubb/NonCGI/images/icons/tongue.gif[/image]My TurboTechnics supercharger upgrade comes with a 12 month complete-engine warranty for peace of mind, otherwise I wouldn’t let anyone except Lotus touch it.[This message has been edited by Admin5 (edited 20 April 2001).]
hmmm,Spose so, but you could just unplug the ECU and pop your old standard ECU back in before letting Lotus at it. There is no way that they could say fitting a different exhaust manifold could make your engine expire…
quote:Originally posted by Rich B:There is no way that they could say fitting a different exhaust manifold could make your engine expire…Don’t be so sure.I know that Subaru will walk away from your car if you have a non-Subaru downpipe fitted, and you can’t blame them really as back pressures are different etc.[This message has been edited by Admin5 (edited 20 April 2001).]
Your right,I’d still do it though! Is the lotus warranty invalidated if you fit their 190 kit?
Where the hell is the damn map sensor, I’d like to check the connection! Anybody know? Mine is very jerky under 3000rpm. [image]http://www.exiges.com/ubb/NonCGI/images/icons/frown.gif[/image]
quote:Originally posted by Pesky:Hang on there Guys - what about invalidating your warranties by fitting “non-approved” parts?Sorry to appear a party pooper - but I’ve only got your own best interests in mind [image]http://www.exiges.com/ubb/NonCGI/images/icons/grin.gif[/image]Perhaps it’s best to wait for 12 months?Rob There is a way!I am a Motor dealer (boo his his) Shh!I supply warranties that cover "all mechanical and electrical parts"The cost is relatively light in comparison to the amount of cover you get and any work that I have done will be warranties by the supplier.Your Bodywork etc will still be in force. The only parts that will not be covered are those directly affected by the changes.To give you some idea of where I am going with this, the target is 220bhp and 165 lbft which will give a very drivable torqy little monster. Lotus has also developed a new close ratio gearbox, which is a modification for the existing box. This supposedly has the effect of an additional 20 bhp.Sounds interesting eh?
20 bhp gain by fitting a new gearbox? how does that work then?
quote:20 bhp gain by fitting a new gearbox? how does that work then? Phil, note the use of the word ï¿½effectï¿½. I have driven an Exige with this ultra short ratio gearbox and short shift mechanism fitted, and it is damn quick, but only due to the lower gearing, not the pixies in the back! [image]http://www.exiges.com/ubb/NonCGI/images/icons/wink.gif[/image]
quote:Originally posted by Keenan Perrin:Lotus has also developed a new close ratio gearbox, which is a modification for the existing box. This supposedly has the effect of an additional 20 bhp.Hmm, but unless it’s a 6 speed, your top speed is going to be lower.With my 260BHP car, I want the gearbox to be “leggy” as 0-60 will be dispatched quickly anyway, and I want a high top end, not stop at 130mph. (I’m talking for track use)
Come on wake up! [image]http://www.exiges.com/ubb/NonCGI/images/icons/smile.gif[/image] [image]http://www.exiges.com/ubb/NonCGI/images/icons/rolleyes.gif[/image]Thanks Tony.
Dave the box is 5 speed but i believe that 1 and 5 are the same 2-3-4 are closer together which is where you spend most of your time on the track anyway. At brands on Tue i didn’t get into 5th at all. And before you say it you granny doesn’t drive faster than me, there just wasn’t the room.
quote:Originally posted by X1GGE:Where the hell is the damn map sensor, I’d like to check the connection! Anybody know? Mine is very jerky under 3000rpm. [image]http://www.exiges.com/ubb/NonCGI/images/icons/frown.gif[/image]I like to know too
quote:Originally posted by Keenan Perrin:Dave the box is 5 speed but i believe that 1 and 5 are the same 2-3-4 are closer together which is where you spend most of your time on the track anyway.Well in that case, it sounds pretty good !ï¿½2,000+ right ? [image]http://www.exiges.com/ubb/NonCGI/images/icons/shocked.gif[/image]
Whats the short shifter like?Is it just a cut down gearstick or is there more to it?
I’ve got the full ratio spec, costs, etc. at home. I’ll try to dig the info out and post some details tomorrow. From memory, it was just under ï¿½2k including the short shift mechanism (which is a real must - a massive improvement, and quite cheap). You need to be aware though that there is currently a track use warranty issue that I’m trying to resolve with Lotus. I’ll keep you posted…
Rich, there’s more to it. Apart from reducing the travel, it significantly improves the feel of the 'box, so you have some idea of where all those cogs got to!