Komo-Tec supercharger

[Iceman-]

Where they place the intercooler?

I don't understand Lotus, they have the kit ready only little mods to place in different place the intercooler and they will sell many kits at 10.000 dollars.
But they prefer to leave the money to improvised tuners.

[Eyelise]

Heat sink issue?. Outlet temps should remain fairly constant with a A/W intercooler. Intake charge cooling is a function of the radiater coolant. You can run these in series with the cars coolant system. Nice cool fluid coming from the front radiator. An efficient intercooler shouldn't get any hotter than 200 degrees or so. Definitely less of a heat sink issue than the intercoolers we are cramming into the engine bay presently.

Originally Posted by MyElise

Because of the additional weight or the heat soak?

[Eyelise]

It really is a question of heat soak. From what I've heard, the A/R intercoolers are less prone to heat sink. You do indeed need low intake temps in a high compression turbo application. The alcohol injection helps but intake temps should not be ignored. You don't want any nasty detonation. I think the A/W system is perfect for the Elise. It is compact and less prone to heat soak. I think at least it will yield consistent intake temps even if under some circumstances a huge air to air system can give lower numbers.

Originally Posted by MyElise

I believe that the air to air systems will provide a lower IAT than water to air in a track environment with less baggage. The bottom line is when running only 6-7 psi just how much cooling do you really need?

[mevistox5]

The guys at KOMO-TEC are somewhat, ehh how will I put it, different.

Product looks very nice and very promising. I know that the product in fact isn't yet completely finished. They are working on the re-mapping of the ECU. The dutch dealer/importer of LOTUS is working closely toghether with them and he has given them the data from the CUP 240R he has been using for the CUP racing season 2005. There should be one car finished real soon though, as I know that one dutch customer has ordered a new Exige and wants the SC installed to actually race (great testing!).
As soon as they have worked out the start-up glitches I'll be looking into it. Maybe as a winter project!

As for price. It might sound steep for the US, but the 10,000 Euro's incl. installation is reasonable. If I order a a standard Exige (at 62.019 Euro's), add all the performace goodies to it and add the KOMO-TEC SC, it will still be cheaper then buying a CUP 240. (that's 88.784 Euro's).

[ronin]

You would never run engine coolant 185temp. ...You would run a dedicated system for intercooler.....It would keep it as close to ambient if done right....
I've done it before on a R5 turbo maxi running 425 hp from a 1.6 ltr....For the street this is the way to go, no heatsoak....Who cares about the extra weight when you would have so much more power..

[ChrisH]

Originally Posted by ronin

You would never run engine coolant 185temp. ...You would run a dedicated system for intercooler.....It would keep it as close to ambient if done right...

But, isn't the temperature reading for the engine near the coolant output of the engine (before it goes to the radiator)? What is the typical temperature after the water comes back from the radiator (say, assuming about a 77 F degree ambient temperature)?

At 14.7 psi and 77 F ambient conditions and 6 psi of boost, the temperature of at the output of the turbo (neglecting the turbo housing and plumbing heat transfer) is roughly 150 F. For 12 psi of boost, it is about 210 F. I wonder how the engine's radiator output temperature compares? I'm not sure how to properly calculate the output temp of an air to air intercooler with whatever a typical efficiency is.

[Eyelise]

I believe the temp guage is at the radiator not engine. Hard for me to believe that you could have a dedicated A/W system in our engine bay running close to ambient. I bet if you monitored engine bay temps they would be in excess of 150 degrees. If you add to engine bay temps heat from the the intake charge exiting the turbo, it will run at least 185 degrees. You couldn't get enough clean air to cool a small radiator like the one pictured less than that. The system would have to be in parallel with the engine coolant system.

Originally Posted by ChrisH

But, isn't the temperature reading for the engine near the coolant output of the engine (before it goes to the radiator)? What is the typical temperature after the water comes back from the radiator (say, assuming about a 77 F degree ambient temperature)?

At 14.7 psi and 77 F ambient conditions and 6 psi of boost, the temperature of at the output of the turbo (neglecting the turbo housing and plumbing heat transfer) is roughly 150 F. For 12 psi of boost, it is about 210 F. I wonder how the engine's radiator output temperature compares? I'm not sure how to properly calculate the output temp of an air to air intercooler with whatever a typical efficiency is.

[Eyelise]

I wonder what the intake temps are for the current air-air systems?

[ronin]

Originally Posted by Eyelise

I believe the temp guage is at the radiator not engine. Hard for me to believe that you could have a dedicated A/W system in our engine bay running close to ambient. I bet if you monitored engine bay temps they would be in excess of 150 degrees. If you add to engine bay temps heat from the the intake charge exiting the turbo, it will run at least 185 degrees. You couldn't get enough clean air to cool a small radiator like the one pictured less than that. The system would have to be in parallel with the engine coolant system.

Well if you have never had an air to water intercooler you would never know'
You can't tell from thr pics how large the entire intercooler is and there is plenty of room in the intakes to mount a custom radiator and fan and pump.....My old R5 maxi ran 42 psi at full boost and you could put your hand on the intercooler and it never got warm......I also have a blower on my Chevy SSR with the same setup...but I could be wrong...

[Mrd06]

there is a PDF review on this kit now v the exige S

i also have the review on the Bemani one

http://www.s2elise.co.uk/pics/komo.pdf
http://www.s2elise.co.uk/pics/bemani.pdf

download it from me to have a look.

[Val]

Originally Posted by Mrd06

there is a PDF review on this kit now v the exige S

i also have the review on the Bemani one

http://www.s2elise.co.uk/pics/komo.pdf
http://www.s2elise.co.uk/pics/bemani.pdf

download it from me to have a look.

Now if only it came in english... Would you be bothered to make a quick summary?

[Mrd06]

Val like what you have done to your car, looks fab

thought you were not getting a SC now :-)

[2-Y-CHROMOSOMES]

Originally Posted by Val

Now if only it came in english... Would you be bothered to make a quick summary?

This is the BEMANI "not KOMO-TEC" Converted using google translate.
------------------

Lotus Elise 111R were motor and Exige never matt. They set rather Porsche and Co sometimes chess matt. Ai-readers know, to which the two Vehicles in the conditions are. Keep in track-strongly, in kurvigem area fixed and at home like that quirlige squirrels in airy Geäst. Naturally humans always trachtet after more. Which mundet burning sharply today, can tomorrow already again charitably the palate bore. That does not hit the two plumb bob US types mentioned too, would like we stressed sharply. One harmoniously tasting dose pepper has in the long run but still no Chateaubriand harmed. The Bemani engines AG from Beinwil to Lake turned recently twice at the pepper mill. A compressor kit with intercooler the menu sharpens just in those Beigabe, which quick progressive movement in harmonious rounded off form additionally dynamisiert. The Toyota engine with variable Ventilhub experiences such an achievement plus of 192 to 265 HP. Kraft swells how the Ofenküechli of 181 Nm with 6800/min to 253 Nm from 4000 to 6500/min on. The latter is therefore interesting, there that Muscle increase just that range compensated, , we say times, one to that with the 192 HP variant as small Durchhänger appears, before with approximately 6000/min the devil is the matter. Straight one in daily handling we estimate the force increase between 3000 and 6000/min. that the two-litre now just in mentioned number of revolutions breakdown extremely well in the fodder is located, document the numbers the intermediate spurt 80 to 120 km/h in 5. Course. The extra Kick of Bemani causes here lastingly improvement, over 2,9, in 6. Course around 3.7 seconds. Nothing the defiance is the fundamental Rating invariably remained. That is, who with the Bemani Exige (900 kg), us the Lotus center Zumikon for test purposes made available, to run, remains the upper margin wants as usable sector. That means with depressed Accelerotor pedal that the compressor-inspired Four-cylinder starting from 6000/min martialisch malicious like a viper zubeisst. To 8300/min berauscht now more over-foaming Forward urge the driver. Over not by the intoxication to be packed, is reason an urgent topic… In addition those kreischt Machine including compressor the ears fully like a heap of johlender Schumi Tifosi. Surely nothing for lovers classically Six cylinder music. In figures: The Exige tears itself, then beacons and consistently on the gas stepped, into 4,4 Somewhat more spice may be: 265 HP generate one over one second better Acceleration strength, radicalize the Exige. Fulfills expectations: Under Bemani Flag marches the Exige in all situations in life more turned, and seconds from the conditions on 100 km/h, and in 16.5 seconds, some small car marches in the time on 100 km/h, genuine stand 200 km/h on. With the new Porsche Carrera S, which sports car criteria read, the two numbers of 4.8 and 16.9 seconds. The racing car suspension comes in the best way clearly with the performance increase. Those Exige tänzelt stout-heartet like a flowering Ballerina around the corners. The tires of the front wheels stick themselves together under proportioned gas employment with the bitumen such as chewing rubber and soil, slip only at the limit entrückten far. Change of load does the Lotusblüte in the correct Measure. The brakes pack too, are stable, would be allowed to do however with the Vollbremsung one shorter stopping distance generate. The steering element is which for strong Bur. it inspires. The Exige is also after the Bemani Compressor with gift remained, which it before was: a beautiful piece Sports car fascination for (hobby) Running driver, however with an extra portion Pepper at the gesalzenen price. TECHNICAL DATA Motort4 cylinder in row, straight across the rear axle, 1796 cm3, drilling x stroke = 82 x 85 mm, compression 11,5:1, Leistung 193 KW (265 HP) with 8000/min (series: 141 KW (192 HP) 7800/min), torque 253 Nm from 4000/min to 6500/min, (Series: 181 Nm with 6800/min), 2 cam shafts (chain), lying above, variable valve and valve stroke price increase (VVTL i), 4 valves per cylinder, changes geg. Series: Compressor kit with intercooler, electronics, sport air cleaner, max. load pressure 0.5 bar, new exhaust collector. Power transmission t rear-wheel drive, 6-Gang-Getriebe, like series. 1000/min in 6. Course = 38.5 km/h. Chassis t corresponds to the series Acceleration in the test t 0 to 50 km/h 2.0 s 0 to 80 km/h 3.4 s 0 to 100 km/h 4.4 s 0 to 100 km/h (proven Tunerwert) 4.3 s 0 to 120 km/h 6.0 s 0 to 140 km/h 7.4 s 0 to 160 km/h 9.7 s 0 to 180 km/h 12.1 s 0 to 200 km/h 16.5 s for 1 km with stand. Start 23.0 s Maximum speed (Tuner) 260 km/h Elasticity in the test t 40 to 80 km/h in 5. Course 7.1 s 80 to 120 km/h in 5. Course 5.9 s 40 to 80 km/h in 6. Course 8.7 s 80 to 120 km/h in 6. Course 7.5 s Braking distance/test (100-0 km/h) t Min./max. one with ABS 40/43 m Min./max. one without abs regulation 39/42 m Consumption in the test (100-0 km/h) t Average 11.9 (RON 98) Min./max. one 9,4/13,1 Standard-mix series (1999/100/EG) 8,8 Test car price t Fr. 84,600 Base price Lotus Exige 111 R Fr. 67,700 Tuning components t Compressor kit with intercooler and exhaust collector Fr. 16900 T drove out Bemani engine construction AG, 5712 Beinwil A. lake, Tel. 062/771 07 55; www.bemani.ch or www.lotuscars.ch. Measurements auto+illustrated: 410 m ü. M., temp. 3 ºC, mileage of 1300 km, tire Yokohama A 048, v. 195/50 R16, h. 225/95 R17

[charliex]

i think i just got cancer reading that

[perryeyges]

Komo-Tec has Pretty Hoses!!

[Val]

Originally Posted by Mrd06

Val like what you have done to your car, looks fab

thought you were not getting a SC now :-)

Thanks! Not this year... cant be bothered. But still looking at options

[2-Y-CHROMOSOMES]

DOHH That was the Bemani I translated....

Sorry for not addling line breaks.
I am in a rush to get to a wedding.


later

mark

[xtn]

Reads kinda like Shakespear.

xtn

[Fungezap]

Over not by the intoxication to be packed

I think my mother told me that once.

[2-Y-CHROMOSOMES]

Here is an interesting article on the Komo-Tec versus the Exige S

http://translate.google.com/translat...lr%3D%26sa%3DX