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Diesel Engines A forum dedicated to diesel engines fitted to Volvo cars. See the first post in this forum for a list of the diesel engines. |
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Petrol & Diesel Tuning ChipsViews : 6269 Replies : 43Users Viewing This Thread : |
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Nov 19th, 2011, 22:37 | #31 |
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Re - Response to your query regarding a tuning box
Re - Sorry for the delayed response...
-------------------------------------------------------------------------------- Tylerwatts...please accept my apologies for the delay in responding to the question above...Completely missed this one... Ok so yes you can only tune/increase the performance. The standard ECU parameters would be seen as a baseline/starting point from which you would use the tuning box to then tune up/find the optimum setup using the dials. I did have another fellow member testing this for me whereby I would send a tuning module, he would then plug into his car and test using the suggested setup back on the first page of this thread... (I think it was the first page...may have been the second) He was then going to take it on the dyno and paste up a printout of the results displaying the various increases etc. Unfortunately, due to personal circumstances, he has no longer been able to offer his services in this valuable experiment so therefore will (if anyone is interested and able to offer the same (dyno a diesel engined car with this tuning module in place) then pm me)... I'm keen to prove sceptics wrong with this...if no interest then once I've managed to source a new turbo for my V40 1.9D (really struggling to find one for a resonable price) then I'll dyno my own car and paste up the results... To continue with your second question....the 'suggested' setup that I wrote about earlier on in this thread is only suggested and may not be the optimum setup for your car/vehicle. There are obviously so so many different makes and models of car that each one differs and again those that I suggested are general in enhancing the performance. You will have to find the optimum setup for your vehicle. I can advise though... Hope that helps and goes someway to answering your questions, Do let me know if you have anymore, thanks, James
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Nov 19th, 2011, 22:40 | #32 |
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Im willing to test it on a V70 2.5T if thats any use
Simon |
Nov 20th, 2011, 16:49 | #33 | |
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Current:- 05' V70 D5 SE 221220 miles 01' Landy Discovery 2 Td5 77000miles (my new love(shhhh) Previous:- 97' V70 SE TDI 244348 Miles: 89' 745 B230k LPG conv 307260m: 90' 745 B200f 164786m :89' 440 turbo 135432m VOC 23035 |
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Nov 20th, 2011, 17:05 | #34 | |||||||||||||
Two wheeled lycra lout
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Been watching with interest....
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[QUOTE=wingz123;1025915 With regards to what bhp your likely to see I estimate somewhere in the region of 207bhp.[/quote] A gain of 30% on the EUIII D5 would take it to 217bhp. So is it 30% or ?? 207bhp is quite an accurate figure, or is it an estimate? I'm confused. Quote:
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So the box is less effective but you're saying it can produce more than my MTE remap? (have a look here for information, including dyno plots http://www.volvoforums.org.uk/showthread.php?t=85661) More confusion.... Quote:
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Bit in my mind, this still points to the box just being a couple of variable potentiometers that the buyer can vary to signal voltages. Quote:
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For other people's interest I have found the following about the EDC15 system used in the early D5 engine. Unfortunately, specific information on the EDC15 system as Volvo applies it is very thin but I assume the principles are the same. Based on Injected Quantity (of fuel) (For comparison the EDC16 system, as used in the 05> 2.4D and D5 engines, is based on Torque demand and is different to the EDC15 system). There are several "maps" held within the ECU. All of these maps are 3-dimensional and are interconnected: -Drivers Wish Quantity of diesel fuel injected into the engine depending on the engine RPM and the throttle position. The output is injected quantity (IQ) (amount of diesel/stroke). -Torque limiter Limits the torque of the engine based on RPM and atmospheric pressure. The output of this map is also IQ. -Smoke limiter Limits the IQ based on RPM and inlet air mass flow (for example, if the drivers wish is X mg diesel fue land there is only enough air to burn Ymg diesel, it won't inject Xmg but limit injection at Ymg/stroke. -Duration map Shows how many degrees of engine rotation it takes to achieve the amount of fuel injected. So this is a "calibration" map. There may be more than one duration map,for example 4 maps for different coolant temperatures etc. -Turbo map Shows the desired turbo pressure at a certain rpm and IQ. The output of this map is turbo pressure. -N75 map Controls the VNT vanes inside the turbo at a certain rpm and IQ. -Boost limiter map Limits the turbo pressure at a certain rpm and atmospheric pressure. -EGR map Regulates the Exhaust Gas Recirculation valve. It's this sort of information that makes me distrust "tuning boxes" or anything else that simply plugs in and modifies any of the signal paths. This is for the Bosch EDC15 system for diesels. I'm thinking that that the petrol systems (ME7, etc) will be very different and include things such as ignition adavnce tables/maps and others, so how applying the same plug in box would affect their performance I do not know.
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Can we share the road please. Yes, I am insured on both 2 and 4 wheels. Not a motorist, not a cyclist, but a road user. 54 V70 D5 SE (163, EUIII) MTE, Eibach, Powerflex, IPD arb's, TWR FMIC, Ferrita cat-back. |
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Nov 20th, 2011, 17:09 | #35 |
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Hear, hear, exactly what I was getting at, a variable resistance device, I supect nothing more.
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Nov 22nd, 2011, 17:27 | #36 |
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cheap chips best avoided
hi skye740
i would definately not go down the cheaper chip road,any good ones will have oem original plugs etc for safety and ease of use,the thought of a scotch clip fitting to an important part of the cars leccy system gives me the shakes,i see there are also a number of units available that have little flick switches so you can fiddle about with it!!!i am led to believe these are not really suitable for the rigours of the auto market,more to home use,i have only seen 1 that is iso 9001 quality,its set for your model of car,but can be adjusted with a screwdriver if req,i had one on my discovery 3 i left it alone just fitted it and was very happy. cheers sandy |
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Nov 23rd, 2011, 00:15 | #37 |
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It's worth adding to recent posts that the reason many diesel tuning boxes appear to give improved MPG is that they skew the calculations of the car's MPG computer. By persuading the injectors to deliver more fuel than the ECU requested, it creates the illusion that the car has travelled further on the ECU's original fuel requests, and hence the computed MPG readout becomes inflated.
In the 18th and 19th centuries it was fashionable to invent 'perpetual motion' machines. In these days, preceding scientific education of the masses, these machines were sometimes taken seriously. Nowadays most of us understand why they were most unlikely to work and, of course, they didn't work. By the same token as the perpetual motion machines, any device which claims to improve a car's performance (ie the engine consumes more energy), without impacting MPG (ie there is no more energy consumed), arouses my EXTREME scepticism. It is vaguely possible that a manufacturer could screw up some aspect of engine efficiency such that a 'tuner' could correct their mistake. But in the days when fuel consumption is the main selling point of cars, how likely are Volvo to screw it up? Last edited by Bill_56; Nov 23rd, 2011 at 00:18. |
Nov 28th, 2011, 17:16 | #38 |
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Anyone tried this mod, ive been looking into it and it has some very very good press for peanuts, it does sound like a bodge but people are doing it on late cars with excellent results, it was designed by a technician who worked/works for Upsolute:
http://forums.tdiclub.com/showthread.php?t=12165
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Nov 28th, 2011, 18:21 | #39 |
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Thats basically what a lot of these "tuning boxes" do, isn't it? You just don't get a fancy branded case around it if you make it yourself!
Last edited by JamesV70R; Nov 28th, 2011 at 19:13. |
Dec 15th, 2011, 01:08 | #40 |
(52) V70 D5 163
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I still believe that on total balance, the tuning boxes are no more 'dangerous' for your car than a remap.
In fact earlier in this thread Robbie stated that in his opinion, the stock D5 intercooler is insufficient for standard performance, never mind any type of 'tuned' (map or box) performance. And he stated (as we all know) that a remap will change many other variables in addition to fuel mapping, including boost pressure (which will increase with a remap). So with a remap, my D5 will boost more and put the intercooler at greater risk. Now I know my Tuning Box will never produce the same performance as a remap, but at least the performance increase that I do get (which is very clear and enjoyable) is obtained purely from fuel mapping, and thus not increasing boost. So in theory, I believe the tuning box, whilst not being as potent or fuel-efficient as a remap, is arguably safer. Mine has 8 settings: I am running on setting 7 now, getting great performance (I suspect around 20-25bhp more than the stock 163hp), with no black smoke, no limp modes or other issues. The car just runs. And it runs great. In fact with the tuning box on, it idles a lot, lot smoother. Just my honest experiences chaps, YMMV. Last edited by longyear; Dec 15th, 2011 at 01:10. |
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