turbotuner

I do kind of agree with JC-Viggen. This might sound bonkers coming from someone manufacturing and selling this COP product, but my opinion is that the COP conversion is probably only beneficial to those who need it, rather than to have it just because you can! Examples of needing it would be - 1. Fitting a T5 engine into some other car like a 240 where the bulkhead is in the way of the distributor. 2. Using a different cylinder head which doesn't facilitate using a distributor system. Video is here - http://www.youtube.c...h?v=QFQY8Di6NqU

Outdoor fun...

Check it out - it's a small computerised telescope, light and portable. I just attach the Canon 500D to the back. http://www.celestron.com/c3/product.php?CatID=13&ProdID=413

Here is one of my efforts (low res for viewing) - Taken with a Canon 500D and a Celestron NexStar 4SE telescope mounted as a large 4" telephoto lens.

Incorrect = not what it should be! Incorrectly adjusted cams can throw a knock sensor DTC.

Don't forget that up until now he has been running with incorrect cam timing, so I don't think any of the previous data is going to be very meaningful. Now that he has the correct cam timing, the results should be much better.

My recommendation is to use whatever you feel gives you the best results for your particular application. There are people running the standard boost control system and there are others who use an EBC. I guess it depends on the EBC!!! An EBC which can actually measure boost and which uses this measured boost as a feedback input to regulate the boost pressure, will probably be better.

OK, corrected response... The MAF/Boost Limit sliders WON'T affect the fueling!

The sliders shouldn't make any difference to the fueling. If you lower the sliders, all that will happen is that your face will hit the windscreen when you get the fuel cut from the ECU when it detects an overboost condition!!! If you are at 1.5-1.6 bar, the fuel cut will feel rather violent!!!

If you need any help specifically related to TT, the best place to ask is on the TT support forum. Many members use TT with various degrees of experience and tuning. With TT there is plenty of information available, including an example tune to get you going very quickly. The main thing is that you don't have to worry about any initial setup. Just plug it in and start playing!

Yes, you can via OBD2. Question is whether his OT1 supports this particular channel.

Bent rods can be avoided using a MAF system too!!! TT has adjustable air-flow limits for precisely this reason. Sensible tuning is the best way to avoid bent rods.

Since there is a perfectly usable MAF system in place, I really don't understand why the need to change it. It doesn't stop people making big power and it's perfectly fine for tuning. All that is required is for me to implement the means of scaling the MAF so that it doesn't peg for those who need this. As already mentioned previously, TT will be enhanced so that it does offer the option of significant standalone capabilties. So while there are certain limitations at the moment, in the future these will be addressed while still keeping all the advantages of the basic TT system.

I agree. That's why we are developing extra features which will take it way beyond normal motronic capability. So in the near future, users will have all the current advantages of the TT system, plus the option of many features normally associated with standalone systems.

I will look into it, but I don't think it's a simple solution.

I don't think it's necessary and to be honest it's best for TT to keep the safety features as they are. I guess this is where some of the other systems will be better in terms of ultimate adjustability, but one of the selling points of TT is that it will try to protect the engine as much as it possibly can. I don't doubt that it may be too restrictive for some, but that's why there are various other standalone options on the market for different requirements. You shouldn't be getting ghost knock events. If the tuning is correct, you should get no knock and therefore the correct timing as specified. Don't panic - all is in hand!!! Lots of new features and tweaks in the pipeline...

Me! Not really - you only get inconsistent timing if it's knocking and the ECU has to retard the ignition timing away from what you specify. If there is no knock, the timing will be exactly as specified in the tables. Obviously the end result depends on the tuning knowledge of the user, but there is certainly no voodoo! Great idea for a product though... "voodoo tuner" Turbo-Tuner does provide data-logging info for the cars which support this via OBD2, although this isn't ideal because it's too slow to support many channels. However, you are correct in that TT does not currently include it's own generic data-logging capability (in the same sense as other standalones) for all cars. However, it won't be lacking this for long, as well as having some other nifty features added. I do agree that the words "better" and "easier" are subjective and ultimately depend on what the criteria is.

Also, are you sure your datalogger timing readings are correct? Is it able to log any knock induced timingh retard? That, togther with the map trace, will give you a good idea as to what is going on.

Interestingly, your MAF values seem to hit a plateau of 231. It's worth running the map trace on either the fuel map or ignition map to see what's happening.

What about the IAT? With a MAP based system, don't you also need IAT sensor to calculate the air density?

If a MAF sensor isn't working correctly, then sure the engine won't run properly. But the same would apply to a faulty MAP sensor too! I'm still curious how a MAP based version would be better to manage things? It's a genuine question BTW - I'm intrigued because if there are significant advanatges then I would look into this for the TT. Yes, but only if the MAF is faulty. Goofy AFR for example can be down to faulty sensors, air leaks, mapping etc. You could get equally goofy AFRs with a MAP based system. What sort of oddities?

OK, but I was trying to understand why someone would want to.

No I don't think so, unless you use some sort of MAF to MAP conversion system. But why would you want to anyway? That is normal.