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Model specific boards => Golf mk4 => Topic started by: JimBR on 01 February 2012, 12:53
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Is there such a thing as a stage 1.5 map, well a further tweaked stage 1 map really. (I probably should just phone R-Tech but bought I'd ask)
Ive got a stage one AUM but want a little more. If I was to fit a decat and TIP then get the my map tweaked again would it be worth it?
I can't afford £550 for a THS fmic, and besides are they really needed as its not exactly hot in England anyway.. Plus the main restriction in the exhaust is the cat obviously.
It should only cost like £300, and may make a reasonable difference? What do you lot think..
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nope , stage 1 stage 2 then stage 3
i belive some places do stage 1+ but from what i can gather its just what they call a stage 2 map
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Intercooler is nothing to do with how hot the outside air is, it cools the charge air that gets heated by the turbo/engine.
Cooler mix = more timing advance = more power
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But it cools the charge air with air which is at outside temp which is what I'm trying to say. I know a fmic has a bigger surface area so would be better but is it necessarily essential?
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all depends how cool you want your air :wink:
This is mine on a spirited run, note the intake temps. You wouldn't be able to achieve these with a SMIC
(http://img.photobucket.com/albums/0803/WesRS/logs003.jpg)
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Wow they're pretty good. Guess its worth it then. The figures in your sig seem low for your spec, only 15bhp more than mine and 30ft/lb with easily £1000 worth of parts.
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I've added the FMIC since the map and don't forget it's an AGU, stage 1 on them only guarantees you around 190bhp, not over 200bhp like the AUM/AUQ :wink:
Once I fit my Calibra injectors, VR6 MAF and a have a new map it should change things a bit :afro:
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You had a KO3s that's why I thought it might be higher. May save and go all out stage 2 then, those inlet temps have convinced me lol.
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yeah limiting factor on the AGU is the K03 but once the K03s is on there the injectors become the weak link. I did have a run of 229bhp but the injectors were working their asses off at 100% duty so it was knocked back a bit for safety. :smiley:
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yeah limiting factor on the AGU is the K03 but once the K03s is on there the injectors become the weak link. I did have a run of 229bhp but the injectors were working their asses off at 100% duty so it was knocked back a bit for safety. :smiley:
what injectors you gonna be using mate?? :undecided:
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Calibra yellows mate, AUM injectors are good for decent power though :smiley:
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i got a agu maye putting a ko3s on it with a forge actuator just dont wanna run the standard injectors on 100% duty all the time so get some calibre yellows then??? :rolleyes:
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they shouldn't ever be mapped for 100% duty. Unless you want to go further than circa 220bhp standard injectors are fine
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Perhaps your confusion may be as a result of how some people describe their maps. From what I've encountered (which is not alot by any means, but perhaps helpful nonetheless) is that there different levels of tune.
Stage 1 is a software upgrade which basically allows the stock components a bit more freedom.
Stage 2 involves upgrading the air flow both in to and out of the engine (air intake, exhaust and intercooler). At this stage some people have the software on the car tweaked in order to make the most of the recently upgraded components - this would be a stage 2 map.
However some maps can compensate if the air flow in the engine is increased (for example when upgrading from stage 1 to stage 2). These sorts of maps I have heard being called a Stage 1.5 map (and even a straight stage 2 map) however this is only a name and does not really mean that it is a completely separate map to a standard stage 1 map.
Obviously there are more stages after 2 but I'm not the most experienced so I'll keep my quiet.
As for upgrading the intercooler, yes ambient temperatures can have a part to play, and if you're car suffers a significant loss of power in summer then an intercooler would be a worthwhile investment (if turbocharged of course). But from a modification point of view, it simply keeps the air in the system cooler (and therefore more dense) thus allowing the car to pull strongly throughout the rev range. By way of example my recent MINI R56 JCW (which has a piddly small intercooler) struggled on a Rolling Road because the engine was reaching certain temperatures after 4.5k rpm and the ECU was protectively overriding and shutting down. With an upgraded intercooler, the engine won't reach those dangerous temperatures as quickly and so the ECU won't have to limit performance.
Hope all this helps.
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I'll also add, just looking back at your first post, that a stage 2 map is essentially a tweaked stage 1 map which takes account of the increased air flow within the engine.
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Nice explanation of intercoolers there :smiley: