Project: RS2 ABY

[prj]

Go for 7A cams, inlet and exhaust. You will lose your surge and you will have noticeably more top-end power. Put them to stock marks, no adjustment.

Trust me, it will work just fine.

[Sonic]

That's exactly what we were thinking... with the aquamist

[europeanme]

with the aquamist

be quick then dude.....I think the vat free deal is over at the end of the month...

gald you sorted this and with minimal pain......I'd better keep an eye on my maf now as if Jamo suggests it is a service item better find a good place for replacements....

[prj]

I do not believe this to be the case. I have been running them on lots of cars and have had very isolated issues. There was a certain one with the wiring melting and frying the ECU in the process, but the MAF is hardly at fault for that, yours with the MAF failing, and another car where a brand new MAF was defective - signal spiking, and was replaced under warranty after which everything has been fine for the past year. This is out of 30 or so cars running about with them.

[Sonic]

be quick then dude.....I think the vat free deal is over at the end of the month...

gald you sorted this and with minimal pain......I'd better keep an eye on my maf now as if Jamo suggests it is a service item better find a good place for replacements....

Cheers Mike, hopefully get it ordered soon, but got a lot going on with work situation, house situation, car situation etc at the moment

The S2 was due to be going into Quattro Coachworks in January but currently on hold until they get their new unit up and running and whilst the car was being problematic!

There's always something on the cards with the S2, but the cams, aquamist and a remap seem like a very good and cost-effective upgrade which will hopefully come to ~£1500 all-in and take me from 430bhp / 600Nm to 480bhp / 600Nm which about a 10% increase in power output at top-end.

I want the hfs-3 with twin 1.0mm injectors, right?

[Thuppu]

Intake... hmmm. Well it's running wagner IC with reverse inlet, and the head is fully ported, so is completely optimised at every point apart from the airbox which is an obvious restriction with the 4" inlet along with the RS4 MAF diameter and the turbo inlet.

What is your exhaust setup?

[Sonic]

Wagner RS2 EVO EM, TiAL 44mm WG, 3" turbo-back de-catted with Milltek 2.75" rear-silencer and back-box.

[Avantus]

That would be a fairly conservative estimation on WMI no? Between 15-20% when fully mapped for it?

[Sonic]

If the water meth plus cams give me anywhere >480bhp i'd be very happy. 500bhp would be awesome

[europeanme]

Cheers Mike, hopefully get it ordered soon, but got a lot going on with work situation, house situation, car situation etc at the moment

you and me both Andy.....mainly car issues....

I want the hfs-3 with twin 1.0mm injectors, right?

thats the kit I've got but after listening to various opinions/ideas I have gone for a smaller jet as I don't want my engine to rely on a 50/50 mix and then run out of the mixture, I'm not that conscientious......where would the engine find the missing fuel!.... why not try the AEM that was on sale on the forum a bit back

I am only after reducing inlet temps and any further power increases will only be a un-expected bonus....

speak to Richard at Aquamist, he is great at answering the most stupid of questions ( I should know I asked a lot....)

[AndyP]

Confirmed it's an exchange item from GSF ( can't buy sensor only), GSF PN 187vg049.

Price is £70 plus vat retail £25 surcharge for non exchange

Cheaper if you can get trade price

Interesting that part number just brings up a picture of the sensor ( which Bosch do not list as a separate item ) and it does not say it's Bosch

http://www.gsfcarparts.com/187vg0490

I just ordered the exchange MAF from Bosch today and it was £79. Not in stock at the moment so about a week from Germany, but I'm in no rush.

[A80Avant]

what is this air mass sensor??

[prj]

There are different sensors. The RS4 MAF has the same sensor as a specific 2.5 TDI one I think, but don't hold me to it.
Some sensors read more some sensors read less.

WMI - dual 1.0mm jets is very good.
Aquamist has a failsafe, which can be either wired into the ECU to do map switching or it can just turn off your N75.

[Sonic]

There'll be a few jobs waiting for you on mine then...

1) Wire in Aquamist kit to the ECU.
2) Expose wires from the ECU for VAGCOM/Fastdiags.
3) Remap with cams and WMI.

Has anyone done the math on flow-rates with dual 1.0mm jets? E.g. If i use the 5l screenwash tank, at full-rate how long will it last?

Dmitri, would you recommend a 50/50 mix?

[Thuppu]

Wagner RS2 EVO EM, TiAL 44mm WG, 3" turbo-back de-catted with Milltek 2.75" rear-silencer and back-box.

For 500hp I would use minimum 3" exhaust. Of course your turbo hot side might also be the restriction why the engine is not breathing so good as would be possible with a fully ported head. You need a bigger turbo.