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Stefan Ertler

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Everything posted by Stefan Ertler

  1. Peter I have spoken with Steffen Brandt and he told me that the Reiner 3000 works by collecting the speed at the rear wheel in realtime as you drive. It then uses the speed to compute all other performance values Before you have to punch in some details of your ride. i.e. Type of car ( sports car, sedan, etc ) weight including driver etc. They have worked out average cw values for each category. For instance the sports car default cw value is 0,34 ( the Esprit's got 0,36, so that is pretty close) One should perform the tests on a even road and measure under different climatic condit
  2. Hi Peter Here is my readout from 2006. As you can see, there is only the weight of the car. Maybe G
  3. Peter tomorrow I will scan my old sport 300 readout and post it. Will have to see myself what we put in back then. You can ways email r&b and have steffen explain it in detail. Stefan
  4. Rydning We reach the set 1.3 bar max boost at 3200 rpm. Mike This is the device we are using to get performance readings. My car has not been measured as we want to solve the CO problem yet. Steffen has performed a pressure test of all cylinders and there is no leakage. We tend to lean towards installing a new cooling system with larger radiators. Stefan
  5. Rydning I will have a complete summary for you later on today or tomorrow Hans RC has much bigger injectors in their flightline, but Steffen is not sure if they are appropriate as we have installed a bigger fuel pressure guage. Hopefully he has some info for us today.
  6. I had Markus at PUK remap the injection time and increase it by 20 % We also use wide band Lambda to measure the AF, we are shooting for the same setting 12 to 13. So far the reading is good, it is just in higher RPMs and with a boost above 1.3 Remember I got now a 2.6 l engine with a closed deck and the same turbo you have. That alone already increases the HP, I guess we just need to find a way to make sure it does not go lean The engine runs very smooth and we have not noticed any knocking. This is also a reason why we are so puzzled about the situation. Don't know the make of my
  7. Hiya Matt Welcome and glad to see the S4 contingent is growing Nice colour. Actually the only other colour besides empire green that is suitable for the sexiest rear wing in town Stefan
  8. Rydning Thanks for your input and information. The reason why we stayed with the stock ecu was excactly what you just mentioned. We would have gone from blank in programming it. Mind you that at Lotus there are many engineers who have come up with the programming of it. Besides, it would have called for a new and different wiring harness as well. Being just a garage, it is very hard and time consuming to do the same. I will forward your comments to Steffen who will probably very much appreciate them to determine our further steps. Stefan
  9. Ok, here is a short update on my findings Went to the RC website and calculated a potential injector, based on their sheets. Problem is that RC is not addressing secondaries in their calculations. I ended up with a main injector of 1068 cc !! That does not look realistic, does it. One can operate 2 ways. A : larger injectors and B : higher fuel pressure. In both cases it is the amount of fuel that counts, to not lean out the engine at higher RPMs with higher boost. The Sport 300 programe, for instance has a stock fuel pressure of 4.4 bar over the standard S4(s) of 3.2 bar. I
  10. Travis Thanks for the input, we will look into it. I have forwarded your thoughts to R&B Let's see what they say. Cheers Stefan
  11. Travis These are very large injectors. Wonder how they work ? I based my search on the fact that now I have 370s for primaries and 270 for secondaries. This would put me somewhere in the 400 to 450 range, but there is nothing available. Stefan
  12. Ok folks Here comes a compehensive update of what has happened since my last post. My car is still with R&B to get everything running at full potenial. Many test km are behind us. Mind you that there is no experience out there which we can fall back on dealing with a 2.6l 910 engine combined with a standard ECU and a modified Sport 300 chip from PUK. Generally the car runs like a bat out of hell. Engine is a smooth as silk, acceleration sensational. Yet, the following areas needed and still need intensive addressing : 1. External boost controller I am using a HKS model whic
  13. It already is on the desk top of my Mac Way to go Lotus
  14. The Mosquito has all my respect. I even rate it higher than the Spitfire. but, who needs props ?? BTW : This beauty was flying at last year's Berlin air show
  15. Damned !!!!!! Why do I keep putting you into Holland. Mea culpa, Hans Yes it's a pitty I cannot attend the season's opening party of LCD. But I am sure we will meet this year on the one or other occasion. promise. Thank you all for your kind comments. If she drives as good as she looks now it's going to be a real rush. Stefan
  16. Ok, upon the request of particular gentlemen ( especially from the Nehtherlands ) I present you the final result I am sure the pictures are self explaining to this very knowledgeble forum, just want to point out some details. As my Pipercross Viper needed extra attention in terms of proper fit and function, the right side wall of the engine bay was completely re-designed and the induction system is no integrated with no extra bend or de-routing for optimum airflow to the turbo. As far as the engine goes, we managed to adjust the fuel mapping and the boost with the help of PUK. Thank y
  17. Thanks Tony. Here is where the sound comes from We have finished the rear now and I am stunned about the looks of it. Just a quick update of what happened since my last post. During the test drives we noticed that the engine ran lean in higher RPMs. I am using 370 primary injectors and 270 secondary ones. Trying to find injectors with a 20% higher capacity, we were not lucky. We turned to Markus of PUK and he managed to harmonise the injection time of the Red Race chip I am using from my old set up to fit the 20% larger engine. Now everything is how we want it. Great
  18. To me this Lambo design looks only exciting on first glance. It is unrefined and reminds me of a bone. There is too much sticking out on the 4 corners and the "waist" is too pronounced
  19. Mark That is exceptional !!! Now the only thing you have to do is to fabricate a easy to install kit to cool down the rest of the V8 bunch Cheers Stefan
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