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Model specific boards => Golf mk4 => Golf mk4 how to guides + info => Topic started by: Ivor Mk4 Turbo on 17 May 2006, 10:30

Title: ENGINE CODES EXPLAINED +EXPECTED POWER FIGURES FROM FROM RE-MAPPING A 1.8 TURBO
Post by: Ivor Mk4 Turbo on 17 May 2006, 10:30
Seeing as these questions get asked a lot, I thought I'd post an explanation on them.  (Maybe Admin could make this a sticky? (If it's deemed worthy, that is!!)).  :wink:

Depending on your type of engine (The engine code can either be found on a sticker in your spare wheel well, in your handbook or on the o/s of your engine), you should easily be able to get between 195 & 230 bhp if you have your car 're-mapped' by Revo/Jabbasport/Stealth etc, etc.  This will depend on:-

- Sports Cat:  These are (usually) legal (please check with the manufacturer first), & offer the best gains (bar the re-map, of course.

- Uprated exhaust:  (Milltek exhausts come highly recommended on here - Am tempted to try the blueflame option myself, though. (Cheap on ebay & direct from factory)).

- Induction Kit/Panel Filter:  (Make sure the filter is NON oil based, or your MAF sensor will clog up).

- Diverter Valve:  The Forge FMCL007P has the biggest following.

The following re-map figures are Stage 1 outputs for the various 1.8 T's, but are approximate & depend on mods such as exhaust, downpipe, filter & who's rolling road it's been done on etc, etc., but they should give you a good idea of what's obtainable! 

AGU = 150 bhp - Throttle cable, KO3 turbo, 5 speed :- Re-maps to 185-200 bhp.

ARZ = 150 bhp - Drive-By-Wire, KO3 turbo, 5 speed.  :- Re-maps to 185-200 bhp.

AUM = 150 bhp - D.B.W., VVT, KO3-S turbo, 5 speed  :- Re-maps to 200-210 bhp. 

AUQ = 180 bhp - D.B.W., VVT, KO3-S turbo, 6 speed  :- Re-maps to 200-210 bhp.

ps Fuel consumption doesn't alter after the remap.  (Although there's a bigger temptation to plant your right foot! :grin:)

pps Please feel free to add to this list/info, everybody. :smiley:
Title: Re: WHAT POWER FIGURES CAN I EXPECT FROM RE-MAPPING MY 1.8 T?
Post by: Ivor Mk4 Turbo on 17 May 2006, 10:48
Also, my car is the AGU engine, & was re-mapped to the figures you see in my signature when it was completely standard.


**EDIT**  My siggy used to say Jabbasport custom map & 202 bhp. ;)
Title: Re: WHAT POWER FIGURES CAN I EXPECT FROM RE-MAPPING MY 1.8 T?
Post by: topher on 17 May 2006, 10:51
who did your remap ?
Title: Re: WHAT POWER FIGURES CAN I EXPECT FROM RE-MAPPING MY 1.8 T?
Post by: Ivor Mk4 Turbo on 17 May 2006, 11:18
who did your remap ?

The optimistic ones! :tongue:

I went for the Jabbasport one (£475), as my mate had previously had his done there with no problems, but most people will recommend a Revo franchise.  (They also offer a 5 hour free trial & are cheaper than Jabbasport, I believe???)
Title: Re: WHAT POWER FIGURES CAN I EXPECT FROM RE-MAPPING MY 1.8 T?
Post by: topher on 17 May 2006, 12:07
Thought so :grin: they have a very customer friendly dyno down there. You'd really struggle to pop more than 200bhp out of a k03 with a stock exhaust, but bhp figures are just pub talk, whether its 190 or 202 it still shifts when you want it to :laugh:

I went for revo. Now most people will argue that it's 'generic' and that it'll never be as well tuned or customised to your car as a rolling road session. In return my argument is that revo technicians spend months and months on developing and testing each and every piece of code that they sell. It may not be tailored but it's tested and proven, and with stage upgrades you can keep on modding. Compare that to a bloke with a laptop who spends a couple of hours tweaking a handful of settings from a base generic map (yes, thats how its done.. they stick on a map from something like an Audi TT and work from there) and I know which I'd go for !

The plus point of a manual remap is you'll obviously have a RR printout to show your mates. Similarly though if you find a revo dealer with a rolling road they'll usually do before/after plots for free if you ask them, and throw in a diagnostics check at the same time.

Completely custom setups however (big turbo, methanol/nitrous, fmic etc etc) would require a custom map.. since there aren't enough 'generic' maps to suit everyone's modifications.
Title: Re: WHAT POWER FIGURES CAN I EXPECT FROM RE-MAPPING MY 1.8 T?
Post by: Phil_M on 17 May 2006, 20:48
Just thought i would point out that jabba have had a new rolling road for some time now, which is far more realistic, all though the old one is still there so not sure if they still use it or not?

When i had my car remapped the first time on the old rollers it made 215hp lol  :shocked: and that was when it was a standard Agu. was well pleased at the time, didn't know it was 15-20hp out though.

Phil
Title: Re: WHAT POWER FIGURES CAN I EXPECT FROM RE-MAPPING MY 1.8 T?
Post by: Dizzie on 12 July 2006, 23:43
I would doubt very much that a AUQ lump in standard trim would get 230bhp. 210 prehaps.
Title: Re: WHAT POWER FIGURES CAN I EXPECT FROM RE-MAPPING MY 1.8 T?
Post by: Neaty on 12 July 2006, 23:58
what years do the different engines come in like the AGU and ARZ etc.
Are the newer ones more tunable or more reliable when remapped etc.

I ask this coz I want a mark 4 and want to do the remap thing so want to know which reg/year to stay clear of etc
Title: Re: WHAT POWER FIGURES CAN I EXPECT FROM RE-MAPPING MY 1.8 T?
Post by: Ivor Mk4 Turbo on 13 July 2006, 14:08
I don't know the exact dates, but I'm pretty sure the ARZ came in, in 2001??

Easy to check though when you're viewing.....  The engine code should be on the off-side of the actual engine (underneath the plastic engine cover) or on the sticker which 'should' be in the spare wheel well/boot area.

They're all of equal reliability, but I'd say the newer ones were more tunable for 'simple' re-maps (especially the AUM/AUQ).

If you want big power/big turbo (ie. over 300 bhp), then the older AGU is the one to go for, as it is stronger has a larger ported head & larger valves.  :wink:
Title: Re: WHAT POWER FIGURES CAN I EXPECT FROM RE-MAPPING MY 1.8 T?
Post by: Neaty on 13 July 2006, 19:12
I was hoping for around 250bhp so i can beat my mates dad in his VXR  :laugh:

so prob the K04 turbo is required yes?
Title: Re: WHAT POWER FIGURES CAN I EXPECT FROM RE-MAPPING MY 1.8 T?
Post by: Dizzie on 13 July 2006, 19:26
buy an AGU lump with cable t/b. you'll barely notice any difference compared to the other codes and if you want to take it further you'll be in a better boat than the DBW variants :)

k04 and grey injectors will see 250bhp. of course, with a remap
Title: Re: WHAT POWER FIGURES CAN I EXPECT FROM RE-MAPPING MY 1.8 T?
Post by: Organisys on 13 July 2006, 21:48
hhhmmmmmmm... the mrs has a AGU in her Audi....  :evil:




 :grin:
Title: Re: WHAT POWER FIGURES CAN I EXPECT FROM RE-MAPPING MY 1.8 T?
Post by: Dizzie on 14 July 2006, 00:35
bolt on a IHI with a set of green tops :D
Title: Re: WHAT POWER FIGURES CAN I EXPECT FROM RE-MAPPING MY 1.8 T?
Post by: Organisys on 14 July 2006, 12:48
I would but she has this funny idea about spending money on central heating and a new sofa, not her car. Can't think why! lol
 :laugh:
Title: Re: WHAT POWER FIGURES CAN I EXPECT FROM RE-MAPPING MY 1.8 TURBO?
Post by: BobbyT on 07 May 2007, 16:04
what code is the lump in a 2003 180bhp bora??  :smiley:
Title: Re: WHAT POWER FIGURES CAN I EXPECT FROM RE-MAPPING MY 1.8 TURBO?
Post by: Rhyso on 07 May 2007, 16:13
AUQ  :undecided: same as the Anni Golfs  :undecided:
Title: Re: WHAT POWER FIGURES CAN I EXPECT FROM RE-MAPPING MY 1.8 TURBO?
Post by: Ashmond on 08 May 2007, 10:16
I have an AUM engine, originally had a ARZ whats the difference? what is the VVT?
Title: Re: WHAT POWER FIGURES CAN I EXPECT FROM RE-MAPPING MY 1.8 TURBO?
Post by: topher on 08 May 2007, 11:18
variable valve timing
Title: Re: WHAT POWER FIGURES CAN I EXPECT FROM RE-MAPPING MY 1.8 TURBO?
Post by: Ashmond on 08 May 2007, 11:27
which means?

So basically my car is good for 230/240 brake?  :huh:
Title: Re: WHAT POWER FIGURES CAN I EXPECT FROM RE-MAPPING MY 1.8 TURBO?
Post by: topher on 08 May 2007, 11:40
how long have you got? I once read a 12 page article on vvt (yes i was bored) :grin:

in summary, the engine can change the lift, duration and timing of the exhaust and intake valves on the fly.
Title: Re: WHAT POWER FIGURES CAN I EXPECT FROM RE-MAPPING MY 1.8 TURBO?
Post by: Ashmond on 08 May 2007, 11:58
sorry to be a n00b but that benefits me in what way?

I had a ARZ engine, now got an AUM and long story short which is the better and why?
Title: Re: WHAT POWER FIGURES CAN I EXPECT FROM RE-MAPPING MY 1.8 TURBO?
Post by: topher on 08 May 2007, 12:15
i don't have the time or inclination to write an explanation of how an engine works, google will sort you out if you're interested in that. so lets just label it a performance gain and leave it at that :grin:

so yep, AUM is more tunable than your old ARZ.
Title: Re: WHAT POWER FIGURES CAN I EXPECT FROM RE-MAPPING MY 1.8 TURBO?
Post by: Ashmond on 08 May 2007, 12:26
LOL!

Fair play dude  :laugh:
Title: Re: WHAT POWER FIGURES CAN I EXPECT FROM RE-MAPPING MY 1.8 T?
Post by: k5 dave on 25 May 2007, 05:21
Also, my car is the AGU engine, & was re-mapped to the figures you see in my signature when it was completely standard.
Hi, Can you tell me how much you paid for your blue flame exaust and where you got it from, Is it loud or discreet, As im trying to keep mine in stealth mode  :wink:, Ive done the first stage with revo now going for 2nd stage hence the advice, Anything you can suggest will be helpful. Thanks Dave
Title: Re: WHAT POWER FIGURES CAN I EXPECT FROM RE-MAPPING MY 1.8 TURBO?
Post by: Ivor Mk4 Turbo on 25 May 2007, 23:18
Also, my car is the AGU engine, & was re-mapped to the figures you see in my signature when it was completely standard.
Hi, Can you tell me how much you paid for your blue flame exaust and where you got it from, Is it loud or discreet, As im trying to keep mine in stealth mode  :wink:, Ive done the first stage with revo now going for 2nd stage hence the advice, Anything you can suggest will be helpful. Thanks Dave

Re. the Blueflame, I think 'resonated' (silenced) centre section is the term you're looking for here, as manufacturers tend to save the word 'discrete' for the tailpipe design i.e. hidden & pointing down like the OE exhaust.  I've got the resonated system on mine.  It's a tad louder on tickover (not a lot, though) & gives a nice deep noise when you're booting it (not chavvy or OTT), but can be a fraction boomy on the motorway at 4k+ revs, but only a fraction - The missus can tolerate it, so it can't be that bad, LOL!! :grin:

I paid £225 + £25 fitting at the factory, but this was about a year ago.  Sadly, the price has risen a little since then.  >>>  http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&ih=017&sspagename=STRK%3AMEWA%3AIT&viewitem=&item=270121636420&rd=1&rd=1

Blueflame are the official suppliers of OE exhausts to Bentley, Lotus, TVR & Westfield, BTW. :cool:

I'd also look at the Forge Diverter valve, the sports cat, the 312mm brake set-up & some decent springs. :smiley:

ps  I'm toying with the idea of selling my Blueflame, atm, would you be looking for a new system?
Title: Re: WHAT POWER FIGURES CAN I EXPECT FROM RE-MAPPING MY 1.8 TURBO?
Post by: k5 dave on 26 May 2007, 08:17
Sorry m8 i bought the blue flame yesterday  :rolleyes: will be with me wednesday  :drool:. Would have bougt yours if i had known  :rolleyes:. How about the filter what one are you using, As im trying to get it right as the car is going in next thursday for revo 2nd stage. And was recommended exhaust and filter. Cheers Dave
Title: Re: WHAT POWER FIGURES CAN I EXPECT FROM RE-MAPPING MY 1.8 TURBO?
Post by: Ivor Mk4 Turbo on 26 May 2007, 12:15
I went for the Pipercross panel filter, which is foam & essentially, non-oil based, as we all know what the oils do to our MAF's!!!  Can't honestly say I notice any difference, but who could tell an extra couple of hp (if there was any extra hp??)??!!  :grin:

ps  Before you get your stage 2, don't forget the OE cats are very restrictive on VAG cars. :wink:
Title: Re: WHAT POWER FIGURES CAN I EXPECT FROM RE-MAPPING MY 1.8 TURBO?
Post by: k5 dave on 26 May 2007, 13:33
Hi i've just ordered a blue flame exhaust from the cat back, Can i use a cat bypass instead of a sports cat, Or( have you got a sports cat you want to sell ) instead.
Title: Re: WHAT POWER FIGURES CAN I EXPECT FROM RE-MAPPING MY 1.8 TURBO?
Post by: Ivor Mk4 Turbo on 28 May 2007, 08:31
You can 'de-cat' if you like, however this is not legal (on the road) & you won't pass the MOT emissions test with the de-cat, either. :wink:

ps  Sorry, I haven't got one to sell - I've somehow resisted the urge....... so far.......  :tongue:
Title: Re: WHAT POWER FIGURES CAN I EXPECT FROM RE-MAPPING MY 1.8 TURBO?
Post by: k5 dave on 29 May 2007, 17:48
Thanks ivor i will keep you updated of my quest  :wink:
Title: Re: WHAT POWER FIGURES CAN I EXPECT FROM RE-MAPPING MY 1.8 TURBO?
Post by: DaveK_Turbo on 01 June 2007, 15:49
I got a quote from my local revo dealer for £500 for a stage 2 remap so im gonna drive to peterborough and pay £475 for a customised one instead  :tongue:
Title: Re: WHAT POWER FIGURES CAN I EXPECT FROM RE-MAPPING MY 1.8 TURBO?
Post by: Ashmond on 01 June 2007, 16:12
I got a quote from my local revo dealer for £500 for a stage 2 remap so im gonna drive to peterborough and pay £475 for a customised one instead  :tongue:

to qualify for a stage 2 remap do you have to have stage one done by revo? and what other actual mods do u need before u can even think about a stage 2? what does it boost you up to?
Title: Re: WHAT POWER FIGURES CAN I EXPECT FROM RE-MAPPING MY 1.8 TURBO?
Post by: DaveK_Turbo on 01 June 2007, 16:20
I got a quote from my local revo dealer for £500 for a stage 2 remap so im gonna drive to peterborough and pay £475 for a customised one instead  :tongue:

to qualify for a stage 2 remap do you have to have stage one done by revo? and what other actual mods do u need before u can even think about a stage 2? what does it boost you up to?

They told me I could go straight to a stage 2 as long as I have An exhaust, air filter, recirc dump valve and a 4 bar fuel pressure regulator, ordered it all now just waiting on delivery then I'm gonna call jabbasport, they said it boosts you up to 207-230bhp
Title: Re: WHAT POWER FIGURES CAN I EXPECT FROM RE-MAPPING MY 1.8 TURBO?
Post by: Ashmond on 02 June 2007, 23:17
I have just got a remap which takes me to about 210brake and since im going from the poor 1.4 figure of 75, that'l do me for now
Title: Re: WHAT POWER FIGURES CAN I EXPECT FROM RE-MAPPING MY 1.8 TURBO?
Post by: k5 dave on 03 July 2007, 02:06
well with stage 2 now done and with a full blue flame exhaust my golf 18t is pushing 215 bhp to be honest is enough for me mid range is now sorted up to 120mph in a flash puts a smile on my face every time i drive it  :laugh: as the wife keeps saying i havent grone up yet  :rolleyes: which i have to agree  :grin:. Next would involve changing the turbo which then gets exspensive, so i will stop with what ive got.
Title: Re: WHAT POWER FIGURES CAN I EXPECT FROM RE-MAPPING MY 1.8 TURBO?
Post by: Ashmond on 03 July 2007, 09:44
what engine you got?

What would I need to do to get the max potential out of my KO3s? As you guys know, I got a cold air feed and a remap.
Title: Re: WHAT POWER FIGURES CAN I EXPECT FROM RE-MAPPING MY 1.8 TURBO?
Post by: lofung on 09 July 2007, 01:49
I have an AGU with a k04, injectors, air filter, a cat back exhaust, and a remap. It's pushing out about 220bhp.  How much would an front mount intercooler do?
Title: Re: WHAT POWER FIGURES CAN I EXPECT FROM RE-MAPPING MY 1.8 TURBO?
Post by: 1688bran on 19 September 2007, 17:44
hi all ! i got a choice of 2 cars both r 1.8turbo one is ARZ and the another is AUM . the AUM one is already been remapwith air filter runnin at 218bhp and the ARZ is completely standard . the ARZ one is a litttle bit cheaper in price  and 20k mileage less than the AUM one . but when i get it im goin to mod it anyway and thinkin of fittting ko4 hybrid turbo on it . as i know already the AUM is better to mod and jus a remap will run around 210-220 bhp . so what do u guys think which one shall i buy ...
Title: Re: WHAT POWER FIGURES CAN I EXPECT FROM RE-MAPPING MY 1.8 TURBO?
Post by: stealthy on 11 March 2008, 12:18
how can you tell which engine you have?
Title: Re: WHAT POWER FIGURES CAN I EXPECT FROM RE-MAPPING MY 1.8 TURBO?
Post by: Ivor Mk4 Turbo on 03 April 2008, 23:53
I have read somewhere that some of the early AUM cars came with the KO3 turbo, therefore don't automatically assume your AUM has the KO3 's'!!!
Title: Re: WHAT POWER FIGURES CAN I EXPECT FROM RE-MAPPING MY 1.8 TURBO?
Post by: richw911 on 12 September 2008, 22:14
Look here for remaps:

 http://www.golfgtiforum.co.uk/index.php?board=74.0  :wink:
Title: Re: WHAT POWER FIGURES CAN I EXPECT FROM RE-MAPPING MY 1.8 TURBO?
Post by: 1688bran on 30 March 2009, 23:33
I have read somewhere that some of the early AUM cars came with the KO3 turbo, therefore don't automatically assume your AUM has the KO3 's'!!!

all AUM engines had k03s as standard .... everytime vw change something they bring out a new engine code . there iis a debate about AUM had either k03 or k03s but i can tell u all AUM engines comes out of a factory had k03s fitted and obvious someone blew the turbo and jus fitted the k03 instead of k03s ...
Title: Re: WHAT POWER FIGURES CAN I EXPECT FROM RE-MAPPING MY 1.8 TURBO?
Post by: RTechUK on 31 March 2009, 00:01
I have read somewhere that some of the early AUM cars came with the KO3 turbo, therefore don't automatically assume your AUM has the KO3 's'!!!

all AUM engines had k03s as standard .... everytime vw change something they bring out a new engine code . there iis a debate about AUM had either k03 or k03s but i can tell u all AUM engines comes out of a factory had k03s fitted and obvious someone blew the turbo and jus fitted the k03 instead of k03s ...

100% spot on!
Title: Re: WHAT POWER FIGURES CAN I EXPECT FROM RE-MAPPING MY 1.8 TURBO?
Post by: Car nut on 01 May 2009, 14:09
Does anyone know - sure they will....

What year Golfs have which engines

AGU = 150 bhp - Throttle cable, KO3 turbo, 5 speed :- Re-maps to 195-210 bhp.

ARZ = 150 bhp - Drive-By-Wire, KO3 turbo, 5 speed.  :- Re-maps to 195-210 bhp.

AUM = 150 bhp - D.B.W., VVT, KO3-S turbo, 5 speed  :- Re-maps to 220-230 bhp.  (***EDIT***  Some early AUM's still came with the KO3 turbo).

AUQ = 180 bhp - D.B.W., VVT, KO3-S turbo, 6 speed  :- Re-maps to 220-230 bhp.

Also what do you have to do to your car before it can be re mapped?
Title: Re: WHAT POWER FIGURES CAN I EXPECT FROM RE-MAPPING MY 1.8 TURBO?
Post by: Rhyso on 01 May 2009, 14:22
http://www.golfgtiforum.co.uk/index.php?topic=89491.0
Title: Re: WHAT POWER FIGURES CAN I EXPECT FROM RE-MAPPING MY 1.8 TURBO?
Post by: Car nut on 01 May 2009, 14:27
http://www.golfgtiforum.co.uk/index.php?topic=89491.0

Cheers Rhyso.....  :wink:

Nice thread Richw 911 another one for the favourites
Title: Re: ENGINE CODES EXPLAINED +EXPECTED POWER FIGURES FROM FROM RE-MAPPING A 1.8 TURBO
Post by: Alan16ac on 13 January 2012, 15:42
I've bought a GTI, it already has so many mods! One of which is a massive front mount intercooler.
It also has a BOV, huge air filter, uprated coil pack and leads, lots of silicon pipes lol.
I'm unsure if it's been remapped, so I'd like to get it re-remapped if you get me. Just for my own peace of mind.

As it has so many mods would I better with a custom map, or a generic one like the revo?

Here's a pic of the engine bay, you pick out the mods lol, I'm not 100% of everything thats been done.

(http://i36.photobucket.com/albums/e27/Alan16ac/Engine.jpg)
Title: Re: ENGINE CODES EXPLAINED +EXPECTED POWER FIGURES FROM FROM RE-MAPPING A 1.8 TURBO
Post by: Horrgakx on 09 March 2012, 08:26
Can I ask the reliability question?
I'm looking at a GTi with 126k on the clock - I'm assuming upping the engine's output will perhaps shorten its life?

Can anyone comment please?
Title: Re: ENGINE CODES EXPLAINED +EXPECTED POWER FIGURES FROM FROM RE-MAPPING A 1.8 TURBO
Post by: harlemex on 25 September 2012, 23:09
will be fine mate, just dont thrash the ass off it all the time and service it properly.