GolfGTIforum.co.uk
Model specific boards => Golf mk4 => Topic started by: Yohan on 17 January 2012, 11:44
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Morning,
Have noticed R-Tech can make good power on the K03s units by replacing the weak actuators with a Forge item.
I know Chris used a Forge actuator and Calibra Yellow injectors on his AGU but am I correct in saying that the stock AUM injectors flow similar numbers to the Calibra Yellow's and therefore all I would need would be the Forge actuator?
Cheers
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You got it, plus they won't fit lol
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Standard aum injectors are pretty gud tbh . And tbh unless you want to go bigger turbo the aum injectors are up to the job
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Cheers guys :)
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As above. Ive read posts that say AUM injectors are good for 265bhp....but dont quote me on it without seeing facts.
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Thanks mate.
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What sort of power and torque are AUMs making with the Forge actuator?
240bhp/260ft-lb ish?
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All depends on the map at the end of the day.
Actuator will allow you to see over ~235bhp and hold boost a lot better to redline!
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What sort of power and torque are AUMs making with the Forge actuator?
240bhp/260ft-lb ish?
^^ if thats the case. Would it have to be mapped in??
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Ideally yes, especially if you are mapped already.
Your boost, timing and everything else altered in a remap will be adjusted to get the best from the OEM setup, and if it was weak, then you might be seeing more/higher readings than what you mean to.
An example MAY be: Having fuelling adjusted to say 12psi boost at 4000-6000rpm and you are able to hold 14-15psi boost between the same range, thus you might end up running lean.
Heres a plot of a forge actuator put on and ran back to back without mods from R-tech.....speaks for itself!
(http://a2.sphotos.ak.fbcdn.net/hphotos-ak-ash4/375896_2767377743514_1230030267_4099551_1101376_n.jpg)
(http://a2.sphotos.ak.fbcdn.net/hphotos-ak-ash4/305463_2767330302328_1230030267_4099489_1697022995_n.jpg)
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whilst this subject is up can anyone think of anything else that I need to get the best overall figures for my stage2 custom remap!?
so far I have
car '03 auq 180
FMIC
Forge actuator yellow spring
3" turbo back non res system
007p
cai
forge tip
should I uprate fuelpump, injectors, maf!? if so to what
emailed and pmd r-tech several times over the past 3-4months but havent heard a peep which is where I plan on having the remap :undecided:
cheers
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phone Nick mate, I know he's very busy at the mo :smiley:
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K03s with forge actuators clamped like a mofo will see 240~260max, you are looking at 240 figures though as the 260 was a race only map with race fuel, so don't dream of this number :laugh:
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K03s with forge actuators clamped like a mofo will see 240~260max, you are looking at 240 figures though as the 260 was a race only map with race fuel, so don't dream of this number :laugh:
Is this in response to my current spec without pump maf injectors? :cool:
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if think you'd have to upgrade the fuel pump
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K03s with forge actuators clamped like a mofo will see 240~260max, you are looking at 240 figures though as the 260 was a race only map with race fuel, so don't dream of this number :laugh:
Is this in response to my current spec without pump maf injectors? :cool:
Not to sure where you stand as I don't tune, I know on a AGU, MAF and Injectors max out around 236bhp at around 12.6:1. Where the AUM limit lies I wouldn't be able to advise, if I knew where the g/s of stock MAF maxed out it could help in determining if the MAF would be maxed out or not. Plus I have no idea where the pump maxes out.
Best thing is give a garage a call as they will know the natural limits of different components from the R&D of writing maps and they will be able to advise you.
But if the case is that the MAF, injectors and pump need upgrading I'd look into not bothering with a k03s forge actuator but a different turbo such as the t3/4 for the hassle of the minor power gain. With T3/4 you will see more power all the way through and the copies are proving cheap and reliable for £270, thats the money you would make from selling k03s and not buying a forge actuator... have a think about it depending on the outcome of upgraded components :wink:
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£270 for turbo then you need a manifold (£100) custom downpipe £££ and boost pipework.
K03s and actuator make for a very quick daily car IMHO, thats not pushed over the top and still driveable. 250bhp just goes down with eagle F1 tyres up front.
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£270 is with manifolds, then it will be a case of fabricating a TIP and using a reducer to latch onto the turbo and current pipework. Not sure on downpipe, need to check this out.
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As far as I know there isnt a on the market jobby thats 'cheap' to buy. Having to find somoene good enough to do the work to a good standard is the hard part :(
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As far as I know there isnt a on the market jobby thats 'cheap' to buy. Having to find somoene good enough to do the work to a good standard is the hard part :(
Do the work yourself, especially when you can get loads of ally pipe in kits nowdays with silicone joints and good clamps and the mk4's plumbing is nothing complicated, once you have done it you have done it. Only tool you will need is a beading tool.
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The boost pipework is the easiest thing. Downpipe is the worst especially if you arent a good welder.
Howver, I reckon you could get one made up for £200-300 which still....would make for cheap power easily.....probably cheaper than some peoples K03s upgrades.
Dare bet you could do it with a THS intercooler for less than a grand.....excluding mapping.
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All this could be done under a grand with mapping, I got quoted £100 for a downpipe to be made providing I supplied the piece that latches to the turbo. Not a bad price. Its good food for thought considering how much you would spend maxing out the k03s setup and with 300bhp at a bar of boost is a good temptation for the t3/4.
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Definately. Just as easy to replace, wallet wise, with a new T3 turbo rather than a used k03s.
Only thing for extra care would be the rods and the torque. Would have to be careful how that is mapped in.
If I was to do it again, with or without a engine rebuild, it would be cheap ebay turbo....cheap enough to replace the parts IF they die.
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my brother has just given me a cheapo t3 turbo and cast manifold, plus aready have THS rods fitted, how hard are the downpipes to find plus would i have to sell my forge FMIC and buy a cheapo ebay FMIC to accommodate the T3???
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You would re-route your boost piping into the original setup (behind the engine and along the chassis leg....I cant see this being too difficult with a bit of care taken.
Id get a exhaust place to make a downpipe.