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16th February 2013, 20:31 | #1 |
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synergy settings help
hi guys,
fitted synergy today, but wondered if someone could advise me on settings...im on setting 9 at mo and ****** hell its impressive, however im looking to use synergy to up my mpg as my car wasnt great in this dept. i have maf switched to on also, can someone give me some direction as i really dont know what it should be at.....thanks
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16th February 2013, 20:41 | #2 |
I really should get out more.......
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HI, has your car got a bosch maf? try settings from one upwards .. see what is best for your car... loads of threads on this subject use the search box for info , just type in " synergy settings.." it all depends how good your maf is really , on what mpg you will obtain . do you need the maf setting on ? alot find 5 quite good.. but every engine is different...
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16th February 2013, 20:58 | #3 |
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How do I know if I need maf on or not..?
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16th February 2013, 21:42 | #4 |
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Bosch MAF sensors rarely (if ever) fail with lower than expected airflow figures.
The recognised within spec figures of a Bosch MAF are 480mg per stroke at idle with a fully operational EGR, and between 720mg and 740mg per stroke at 3000 RPM. So if your Bosch MAF is out of spec, figures of 530mg per stroke or above at idle, will not be assisted by amplification of the signal received by the ECM by the use of MAF compensation, but will be exacerbated instead. Sure you will have a feel good factor when your over fuelling car over fuels a little bit more, but my advice would be to replace the MAF with a genuine Bosch unit if a diagnostic session dictates it's operation to be defective. Also worthy of note here in the vein of MAF reliability, some people will advise that removal of the "bellows" section of the air intake pipe on the diesel will improve performance. Sadly this will result in two main things. 1 the charge of air entering the engine will be warmer and less dense. 2 it will leave the MAF at the mercy of water spray contamination, due to atomised water passing through the air cleaner, thus contaminating the platinum "hot wire" sensor reducing it's effectiveness in short order. Brian |
16th February 2013, 22:00 | #5 |
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Emmmmmm
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16th February 2013, 22:12 | #6 |
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16th February 2013, 23:31 | #7 | |
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Quote:
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17th February 2013, 05:32 | #8 | |
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me rapid6
Quote:
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17th February 2013, 08:46 | #9 | |
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Quote:
Having seen the long term affects of MAF degeneration, this is accelerated considerably by this particular "performance mod" which is nothing more than a placebo, and actually reduces performance slightly. Air flow figures for a compensated Pierburg MAF are as follows Idle 510mg per stroke 3000 RPM 610mg per stroke This is opposed to a Bosch MAF Idle 480mg per stroke 3000 RPM 720mg per stroke. So what do these figures mean, with the Pierburg fitted, your car will be overfuelling at low speeds and underfuelling at higher speeds. The Pierburg MAF may have been a reasonable compromise when Bosch MAF units cost over £250, but now with the price of the real unit being just over £100, there is no need Brian Last edited by marinabrian; 18th February 2013 at 23:17.. |
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17th February 2013, 19:26 | #10 |
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right today ive got it set at no7 with synergy and maf on.....
fitted in 10 minutes which was straight forward enough.....just a bit confusing as i dont fully understand the tech stuff about mafs etc. yesterday it was 9 and ****** hell, couldnt believe it was the same car
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