MK5 Golf GTI
All Things Mk5 => Mk5 General Area => Topic started by: donovan2123 on March 17, 2011, 09:28:30 am
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Hi, I own vrs 2.0t and need some advice im currently running stage 1 map which seems good. I did a few logs and it seems that car is overfuelling abit high end of rev range and engine is pulling timing back because of this. I considered a fuel pump but after logs it was evident this was not need and if anything a CAI is needed to allow map to perform at best. So my question to you is what kit should I get to give more flow all round bearing in mind price as forge is very expensive to me. My flow maf was peak 190g/s. Which I been told is prob equivelant to around 230-235bhp max using calculation, MAF value, divided by 0.81= the rough Hp @ any point.
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who's map are you running?
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Prefer not to say :happy2:
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Ah, a fellow briskodian if I'm not mistaken?
I have the Evoms intake and am more than happy with it, and as luck would have it, there was one for sale on this very site. :happy2:
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Stage 1 is generally used on a standard car, the car shouldn't over fuel? Whats the logs like without the map (assuming you can take the map off)
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Agreed stage 1 shouldn't require bolt on mods.
What figures are you getting regarding rich running at high RPM?
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Hi dont have figures from the lamba log with me at moment as Im at work. But the timing pull is like -13 in some cases
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timing pull is like -13 in some cases
:surprised: quite bad then!
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IS there anyo way i can upload log files?
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http://www.sendspace.com/file/2hgecg (http://www.sendspace.com/file/2hgecg)
http://www.sendspace.com/file/sp4uqu (http://www.sendspace.com/file/sp4uqu)
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Links to logs i took for my car. Can you guys kindly download and let me know what you think
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Just copy and paste a screenshot.
Running rich is unlikely to cause timing pull, running lean is worse. Was the AFR and ign pull datalogged or at least dyno tested when the map was installed? Any faults showing up?
This sounds very familiar to a car I tested recently with a stg1 map that was a diy install with a handheld device, wonder if its from the same tuner? (that car was an audi tt 200hp tfsi)
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Where are AFR logs?
Quite a lot of boost there.
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I have logged AFR. Which blocks are they ? Il do that over the weekend.
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One thing i will say is i was going through the service history and i have to say i cant see any information to say the air filter has ever been changed? I have not only the service book but reciepts for parts and labour non of which show air filter ever being changed.
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Try fitting a Pipercross filter first. Not too expensive and would show if you are heading in the right direction if the timing pull reduces significantly. If it does reduce it then you can think about a CAI afterwards. :happy2:
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AFR is Block 031.
If it was serviced and iirc it is every 40k for air filter, service history air filter box should be ticked.
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Yes there is no tick against the air filter in service book nor in service history invoices and bare in mind car is on 102k. Any more advice. I dont wana go down pipercross filter if it makes no difference lol!
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My personal opinion is you are running too much boost for too long for a stage 1 map, your car is getting too hot hence when you stop booting it briefly then boot it again you get more timing pull.
A down pipe and high flow cat/decat would help greatly but an intake would help a little too. I don't like the looks of the map personally, I made a lot higher MAF figures on stage 1 with much less boost and a lot earlier in the rev range.
Would be good to see AFR.
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Yes there is no tick against the air filter in service book nor in service history invoices and bare in mind car is on 102k. Any more advice. I dont wana go down pipercross filter if it makes no difference lol!
Surely for £35 it is worth looking at to aid the diagnosis?
After all you are talking about buying a full CAI for £200+ without even knowing if that would help!
http://www.potn.co.uk/volkswagen-golf-mk5-20-fsi-turbo-112004--pipercross-panel-filter-pp1624_p1648687.htm
Personally I'd go back to the company who sold you the map and ask them why you are getting -13 timing pull. Anything over 5 is too much! :happy2:
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Thanks lads will see how car is after service and will also log AFR and see how this is.
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Out of interest was this map a:
1.Dyno tuned and tested map
2.Map constructed by trial and error, on road datalogging
3.Diy handheld plug in and hope for the best affair.
4.Quick flash over obd by the tuner with no datalogging and/or testing
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4.Quick flash over obd by the tuner with no datalogging and/or testing
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I can get them to adjust file on dyno if need be its just finding time to get to them and get it done properly.
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Ah hello there
nowt to add really to this or the replies on briskoda.
why wont you name the tuner!! Most guys on here wouldnt touch a guy who doesnt datalog his maps anyway. Plus it could save someone else going and getting a carp remap from them and having the same issues as you.
if they adjust it, you dont need a dyno, they can log it on the road and get the same results. They just need to know what they are doing. Its why id only go with a VAG specialist, not an ebay trained remapper
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4.Quick flash over obd by the tuner with no datalogging and/or testing
Booyakasha. Knew it would be 3 or 4 looking at those logs.
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4.Quick flash over obd by the tuner with no datalogging and/or testing
Booyakasha. Knew it would be 3 or 4 looking at those logs.
i said the same thing in PM on briskoda.
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Mainly because there a friend hence not naming them. Map was a freebe anyways if im honest. Il get them to take a look at it. Thanks
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shame we dont have a load percentage logged against the AFR's really, but it does look like a 3/4th gear WOT run, in which case you are seeing AFR's of 10.4-10.8 which is a touch rich, but not dangerously rich. A lot of Jap stuff run this ratio as standard!
Doesnt look like an overy bad map, not that you can tell the quality of a map by the logs, the log data is just a by product. Suprised you aren't getting limp mode with that timing pull though! intake temsp are fine, the cause of the timing pull needs to be investigated, possibly a touch too much boost as the actual just cant match the requested and take a fair amount of timing out and tune using MBT (minimum best timing) method on a dyno to get the best results.
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Thanks mate. So you thinking it is the boost which may be causing timing pull?
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What fuel are you using?? If the map was for 98+ ron and tuned aggressively then a 95ron fuel could cause these issues.
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Well today i did a service and brake pads all round. This is how filter looked:
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fi162.photobucket.com%2Falbums%2Ft253%2Fdonovan2123%2F2011-03-19124537.jpg&hash=c142fce75d2dc35c9886830c3032f2d4058e6171)
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fi162.photobucket.com%2Falbums%2Ft253%2Fdonovan2123%2F2011-03-19124549.jpg&hash=7b26ba010a857875b580fb99546c0a14750b128b)
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What fuel are you using?? If the map was for 98+ ron and tuned aggressively then a 95ron fuel could cause these issues.
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99momentum
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Looking at your map now mate :happy2:
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:happy2: