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  1. Hello I recently made some upgrades on my Exige V6 cup R ( you know that old track car that Lotus used to made before the EMIRA ) The car was already fitted with an air cooled tvs 1900 and mapped at around 430 bhp, and was working very well Then it was upgraded with the SSC TVS 1900 watercooled kit, forged internals, 430 cup throttle body, custom exhaust and custom mapped on the dyno to around 490 bhp The problem is that after just one session the supercharger belt snapped and I m told that on high power cars used aggressively on track the standard belt can brake even if everything is correctly aligned etc... Maybe with the xtrac gearbox it s even worst? BTW doeas anyone have any suggestions or know if there are some reinforced belts available? Thanks
  2. It s a cup R so the original ECU is a Lotus Motorsport ECU ( based on the standard one ) that is already specifically mapped for the use of the Xtrac sequential gearbox and I think without any torque limiter and then It was remapped for the TVS1900 Pistons were fitted last year and are from wiseco ( not their latest spec as lately wiseco made a slight design change ) and I think the rods are Carillo The valvetrain and head are standard except the valve springs just for reliability and the head gasket
  3. I recently got my Exige cup R back with the SSC charge cooled TVS1900 kit fitted as well as some other little tweaks as shiftec steering wheel carbon paddles ( as on the eleven race car ) , 430 cup bigger throttle body and a custom exhaust with bigger tubing size as per the 430 cup versions. My Exige was already fitted when I bought it with the air cooled tvs 1900 custom manifolds and custom mapping and it was making 430 bhp on the dyno. I then had forged internals installed for reliability with near standard compression and later the charge cooled SSC kit. After a custom remap ( done at the same place that did the map for the air cooled tvs 1900 and on the same dyno ) it went from 430bhp to 495bhp using 98 ron pump fuel. I still did not use the car with the new set up so I can t comment on any difference in lap time etc but of course later I will add pictures and comments.
  4. On the 430 cup there is already fitted the red baffled oil pan as standard... Other than that I can argue about the oem pistons not consistent quality I had an engine failure on track on my 380 cup and after replacement with a new engine ( with some mods ) I had a piston failure that didn t make any engine damage. the standard pistons arent exactly built for track use with that power so I fitted forged pistons and conrods. Wiseco even recently revised it s forged piston design ( that was probably already ok ) for the toyota v6 to give more space between the segments as that s were the oem piston tend to break if stessed. To be fair there are a lot of 430 cup even with a 460 bhp remap going on track without problems so maybe with the watercooled supercharger and it s specific map the temperatures are lower and no eventual detonation etc...
  5. Hello Jack After installing the bosch abs what benefit did you find by removing the brake booster and fitting that BOE parts? Do you think you are faster without brake booster or just prefer the feeling? Of course I understand clearly the benefit of the bias adjuster in case you want to fine tune that... My Friend racing in the Lotus cup Italy that also own a cup R thinks without brake booster there is better modulation and while of course I m sure it s technically true I am used to drive aggressively on track fast cars but still with brake booster and in some way I like that easy pedal... Apart from that as already suggested I also find a real problem in track driving with the cup R and the standard abs system that sometimes quit braking and go into ice mode... You can get used to that and then adjust your driving but then you don t get the car at it s full potential... With the exige 380 cup the problem is less pronounced but I don t know if they made a slight software improvement as standard or if it s just because the cup r is faster and stiffer... Looking at the Komotec option it seem to be a good alternative to the Bosch motorsport ABS if you aren t looking for that last racing fine tuning but for something probably much better than std and Lotus specific ready to fit a a little cheaper. By looking at the specifications do you see any real downsides compared to the Bosch motorsport system?
  6. I use Redline MT 90 on my exige 380 cup and it s much better Those oils are specifically formulated to make synchronizers work better and that s what s effective in that kind of gearbox Frome Redline you can choose between MTL MT 85 or MT 90 depending on the use ( street or track ) and the outside temperatures This gearbox was not really intended for a sport car use so it s difficult to know what will be better for track use I still noticed after using the Redline MT 90 that after many aggressive laps on track it so at higher temperatures it once slightly crunched when shifting to 4th gear After that I replaced the complete clutch ( and brake ) fluid with castrol srf and it didn t make it again so it s really good to replace the clutch fluid with something better for track use Motul gear 300 is also a really good and recommended oil I never used something as 75w140 and would like to know if it s better for track use and still ok for the synchronizer
  7. Hello Jack I have fitted the Komotec manifolds ( with their y pipe sports catalyzer and ecu remap ) on my exige cup 380 ( that already have oem bigger y pipe and muffler ). My v6 cup R was already fitted with some upgraded manifolds custom made by team santilli in Italy ( the ones that prepared that yellow and green wide time attack exige cup r ) the tvs1900 non watercooled supercharger and a custom remap of the oem ecu. With those mods and a conservative remap made for pump gas it was 430 hp ( engine ) I am actually upgrading the cup r to the watercooled SSC tvs 1900 supercharger, forged pistons and conrods, 430 throttle body, etc and even with those upgrades Santilli suggested that the manifolds already fitted ( bigger than oem but not as big as latest aftermarket versions ) would be ok but to upgrade the y center pipe and the rear manifold to latest model sizing so we fitted a 380/430 oem y pipe ( but you can use an aftermarket one from komotec or 2bular ) and a custom rear muffler with bigger pipe sizing similar to yours and then the car should be remapped. I don t think that you have to get a full motec ecu as some expert tuner could just reamp the oem Lotus ecu ( and the base program was I think well done by Lotus motorsport to work well with the xtrac gearbox etc ) but it would be better to fine tune it for the newer manifolds and exhaust both for performance and engine reliability or at least have some good tuner dyno the car and see the lambda values knock etc. As you already know all the older v6 have the y pipe and rest of the exhaust smaller compared to the newer models ( there is a nice explanation on the 2bular website ) The aftermarket manifolds that were made for the older v6 were usually not as big as the ones made for the latest versions. The komotec manifolds are bigger in size and ok to fit even on modded 410 and 430 (and cup r) the fabrication quality seems good and for sure komotec have them usually in stock. The other choice could be 2bular I think they are even a little bigger and more refined and handmade but usually it takes weeks to order them... PB racing and Team Santilli in Italy both make custom versions, I don t know the pricing and sizes but if interested I can get some details. I think that any of those manifolds will be good and it s a good idea to optimize the rest of the exhaust piping to latest size specs
  8. Front 8x17 ET24 5x110 Rear 10x18 ET30 5x114.3 actually fitted with 225 and 265 trofeo R tyres And on track with some friend cup R also fitted with BC Forged RZ 39 in matte bronze
  9. I fitted the innovative engine mounts on my 380 cup and when they arrived the Lotus dealer noticed that as suggested that only the front and rear would fit but not the left and right as the OEM parts are different than on the older exige v6 I think you can order them individually from innovative and I bought them in 75A stiffness With the front and rear innovative 75A and of course left and right std ones I could feel slightly more vibration at idle when just fitted and a slight better throttle response and shifting but after a few days I would not notice anymore the slight idle vibration so maybe they just settle and also you get used to it Depending of what you do with the car I think maybe even a little stiffer as 85A can be ok or better Komotec suggested that they had some problems with them but don t know if marketing or quality and I think someone posted about one of them getting damaged in not so long time I did not look at them in my 380 cup but I had the engine out at a Lotus well known tuner and he did not notice any damage with them Front and rear should be the same parts for the 410 430 Of course Lotus oem left and right ones ugraded desing is probably better and stiffer than the older design so not a problem to keep them standard I think that it s for sure not an easy work to fit them and oem ones of 380 430 etc are already ok but stiffer might be of some improvement on track so It s a non essential but good mod But on an older exige s2 ( and maybe older v6 ) they really improve a lot
  10. I was using dunlop dz03g on the wider 380 cup rims in 215 and 285 and the sizing was really good but they stopped making the rear 285 I used then trofeo r tyres on the 380 cup and on the v6 cup r and used different combinations ( but never used a 295 rear tyre ) On the 380 cup I used 225 front and 265 rear ( the rear 265 trofeo r is wider than other 265 tyres and I think that 295 could be too wide ) No problem with the 225 front except on some rare full lock really really slight rubbing but the tyre side is taller and makes the front sit a bit less low. On the v6 cup r I used trofeo r on std ( narrower ) wheels in std 205 and 265 size and later switched to bc forged wider wheels with 225 front and 265 rear trofeo r and they were fitting perfectly the slightly wider wheels. Lap times on a twisty track were BTW about the same between the front 205 and 225. I saw another 380 cup fitted with advan a052 in 295 and I have to say that they looked ok on the rear. So I would say that the best size for the lotus is probably 215 and 285 if available but depending on what you can find I would suggest 225 front and 265 rear for trofeo r ( 205 front on the 410 front wheel could be a little narrow ) Or you could maybe use the advan a052 in 215 and 295 .
  11. I ordered different times tyres at Renn Reifen including the DUNLOP DZ03G when they used to be available in 285 They are not really fast to reply emails etc and when I wanted to order some Hankook they then wrote that they were out of stock and I asked about Federal ant they were again out of stock and ordered the Trofeo R but after that they did not update their website so either some of the tyres are available or they just do not update the website I think that the dunlop is not available anymore in 285 The Michelin pilot sport cup 2 is an excellent all around tyre with a lot of grip for the road good on track and without many dowsides of the usual semi slicks But if you want to be really fast and agressive on track there are many faster and better tyres that will feel more made for the track The michelin is good but not as fast as others (Trofeo R for example) if you continue pushing it can become a bit greasy and squeaky and also (by doing a few powerslides at the end of a session) It can delaminate But still it s a very good tyre depending on the driver use and conditions.... It s cheaper than some others good on street not noisy not that bad on wet for a semi slick and will last long if not pushed to the limit on track The dunlop DZ02G and the trofeo R (each on a different way) made the car feel a little more as a racing car
  12. I used the MPSC2 the DUNLOP DZ03G and the TROFEO R on the 380 cup I really liked the Dunlop DZ03G they are really good and even if they feel different I think almost as good as the trofeo r (maybe less good on wet) The problem is that they are not available anymore in 285 and I can only find them in 295 and as they are quiet a wide tyre I think they might be a little too wide Does someone know where to find them in 285? I saw a 380 cup fitted with A052 in 215 and 295 and the rear tyre look just a little too wide but I would think really acceptable and they should be good on track
  13. Ok but let s say you get somehow access to position C Where would you fit the rubber pucks for the front in position B ? In that case the problem is that for the common size scissor lift the B raising points are too inwards and not reachable.... or you would have to make some custom center bar Or would you suggest to use C and A even if they are close? Is it possible to use those alloy cylinder pucks sold in usa to fit them on the car to extend the C raising points? I know they are made for the exige s2 and don t know if they would work on the s3 Thanks
  14. I fitted on my 380 cup some trofeo R in 225 front and 265 rear The 225 front is fine even during track use but is a bit taller and will slightly rub at low speed if you are at full lock BTW I have -2.2 front camber The trofeo R at rear in 265 is wider than others 265 so it s ok and I think the trofeo R in 295 would be a little too wide on standard rims and it s better to have a look at the specific tyre spec I saw another 380 cup fitted with the yokohama a052 at the rear in 295 and they are just a little wide on the rim but I think acceptable 215 front and 285 rear is still I think the best sizing but not many tyres available If you dont want to use 265 rear tyres or tyres available in standard size than I would go for a052 in 215 and 295
  15. Something really useful would be if someone who fitted a KT 460 kit and had the dyno made at their shop would then make a comparaison run on another dyno... They seem to all have near 460 at their shop dyno... I m not saying that the KT power kits do not make the expected difference... when fitting the 430 kit my car was running fast and it made 40 bhp more on the dyno... But I m really questioning Lotus oem power output especially on the 380 versions... My 380 cup was around 345 bhp on the dyno and 385 bhp with the KT 430 kit on the same dyno... After that I fitted the KT 460 kit but did not had it on an independent dyno but for sure it was not feeling 75 bhp more... I would expect at best another 30 bhp
  16. Exige V6 CUP R with tvs 1900 on track
  17. If you talk about a scissor lift with full length arms where the car wheels are on lift or one with extendable arms or by somehow removing the rear panel and reaching the rear lifting points maybe... But with a normal scissor lift with ramps between the wheels as in the link and as described yoy can t just park the car use 4 pucks and lift it as you would do with another car... You can do that I think with a 4 cylinders but not a V6 But to understand what you mean post a picture of a V6 on a lift
  18. The exige V6 can NOT be lifted with those scissor lifts in a normal and approved way.... Be careful as if you lift an exige v6 the rear end weight distribution would make it fall from the lift also have a look at the lotus documented lifting points and how they work as you should not just use the 4 center points indicated by stickers on any type of lift
  19. Just a few things to keep in mind in no particular order I own a cup 380 and I fitted a Komotec 430 kit then upgraded to the 460 kit... Dont want to repeat it but as already wrote I broke the engine two times once when completely standard (on track at 2400km) and the second engine (new from Lotus) after fitting the Komotec 460 kit (on track at 4500 km) The second engine broke a piston on track but started to smoke slightly black on acceleration before but the good think is that nothing else broke and I could just rebuild it with forged parts. Not to argue if caused by my use or not but the standard internals and especially pistons are not really strong so I would at minimum say that if they can be used until 500 bhp really depends on the use of the car... (I think nothings wrong at all with komotec kit and probably did not cause the problem the standard pistons are weak even with oem power) For some unknow reason (electronics mapping temperature other) it seems that there aren t a lot of failures of the oem pistons on the charge cooled later versions as the 430 cup even if the oem pistons are the same pistons... I would say that the 430 Komotec kit is really a good bang for buck The tvs 1900 even not chargecooled can give easely 430 bhp with an exhaust airbox and custom tune... and you really feel that it has more low torque compared to the 1320 Don t know how much you loose on track when weather is warm but still better than the smaller supercharger Even if I m not so sure about the numbers of Komotec at their local dyno (did anyone had a dyno at komotec and later on another dyno?) as the standard Lotus 380 are usually not making all the power they should I have to say that the power difference was there (40 bhp more form standard to komotec 430 kit) on another dyno Not that easy to get power with just a pulley and a tune on many models... You should consider that the oem catalyzers are not really ideal they keep a lot of heat and if they brake they can damage the engine (as you can read on 2bular website) On the 380 the standard rev limiter was lowered to only 6800 rpm and many tuners do not offer a map that will bring it back to 7000 or 7200 rpm (at the moment only Komotec ) If you make the supercharger spin faster (and lotus already did that on the 380) you will heat the air so especially on track it will be worst after a few laps The recommended fuel for a standard car and even more far a tuned car is 98 and I think that those cars really have to get good quality fuel also because Lotus did not change anything from the oem normally aspirated camry v6 engine (compression ratio sensors etc) but they added a supercharger and a lot of power so that made it weaker if used with less good fuel... Each tuner as komotec SSC and others have a different approach and they offer in fact good products but they also have to deal with a very special market and deal with the oem weak points of the lotus cars... What can they do if the oem 380 is in fact not 380 bhp on a dyno and the pistons of toyota aren t really strong? If they would say that every car should be fitted with forged internals and then a whole lot of expensive parts to technically work properly many would just go somewhere else or keep it standard
  20. Hi On the exige 430 cup the electronic throttle body should be bigger than on the older models as the 380. I was wondering if the intake parts are still the same on the 430 cup with just some kind of adapter or if even the standard intake piping is bigger or different and what about the afm? Does anyone know if the bigger throttle body is plugged on a 380 it will be recognized and working (of course with a custom remap) or did they change some of the harness?
  21. Hi Jack Thanks for the info I read some of that about the Honda guys mixing synchromesh etc... But was thinking that the Redline was already using similar friction modifiers making the synchromesh mix not necessary. With those manual gearboxes prone to crunching is not easy to find the best possible compromise if using them hard on track... As of course you want the synchros to be not slippery but is MT 90 good enough for higher temperatures on track? When I start to feel the gearbox less good on track I always wonder if it s because the synchros or if because too high temperatures for the oil that I use or both. Will see If mixing synchromesh will make it better... If you have other tips let me know... Other than that stiffer engine and/or transmission mounts like innovative mounts improved the shifting too (especially on the old exige s2) Don t know about SSC cables compared to the latest oem cables that look to be quite good
  22. I am also using redline MT 90 and had some crunching of the 4th gear on track but just one or two times Is syncromesh really different than the addittives that are already in the MT90? Would it not be the same then to switch to redline MTL? BTW I Improved things by bleeding the clutch fluid (and brke fluid) to castrol srf
  23. My Exige cup 380 had a complete engine failure at the track after a correct 1500km engine run in and oil change ant the car was all standard except the auto blip module and a k&n panel filter. It was changed at only 2400 km not under warranty as there was an old record of a mishift to higher rpm peak at 7800 rpm (weeks before the failure) A complete new oem engine was ordered from Lotus and again correct run in of the engine and oil change. Some Lotus tuner told me that if used on track the pistons would probably brake... I then fitted the Komotec 430 kit and the car was working really well and I did a trackday without problems... some weeks later I went to Komotec and they upgraded it to the 460 kit and even if it was working well it was not really feeling better than before and even a little weaker in the midrange. They had to replace a faulty oem o2 sensor while there... I asked about oem pistons to a komotec mechanic and he took a broken oem piston to let me see where they brake and he tought that only a few cars would brake but not depending if oem or with power kit... After only two trackdays (the car started to slightly smoke black from exhaust just before) one oem piston broke... I don t tink it s because of the Komotec kit just that the oem pistons on the newer models are bad quality Now I just had the engine rebuilt with fordged conrods and pistons but the tuner that did the work noticed that both pre cat lambda o2 sensors make an error and should be changed I did not ask him to look if they were plugged right but as Komotec installed them I would think that they are not switched
  24. If you look on the center grille on the front with the komotec 430 kit there should be the chargecooler radiator in front of the normal radiator air flow. As noted by a good lotus tuner in Italy that is not the best placement for the chargecooler radiator as it will take away some air flow to the main radiator and slightly heat the air that go to it. I think those few degrees should not be a problem but it should explain why the engine temperature is a little different. You could if you want change that komotec chargecooler radiator for the oem lotus parts of the exige 410 and 430
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