My UrS6 Avant

[prj]

I don't care about "expensive" anymore on this car.
Not because I would have a lot of money, just experience shows that it is better to never skimp on these cars. If I did the first rebuild at a good place, I would not have to rebuild it again now.

[Greg_S]

Ok, great you can test the Aquamist on your car and then I can also get one before mapping.

It helped on mine, albeit mine doesnt vary across the range. Im trying to find the bits to add the HSV1 and the inline pressure valve so I can drive off an injector signal.

[prj]

It will help a lot more if you use a lot of meth and map the car accordingly - I will run two jets and lean out the fuel map.

[Thuppu]

Where is the best place to fit the nozzles on the AAN engine? Just before TB? And is it better to use one or two nozzles? What size? With the HFS-3 system you get 3 nozzles, size 0,8 0,9 and 1,0.

[prj]

I will sort everything for you directly to your door, don't worry

[Greg_S]

I have a single injector on mine at present mounted on the outlet of the intercooler

[prj]

Need to run dual jets and a lot of meth, then lean out the fuel map if you want to get good gains.

[Thuppu]

I think almost all water injector manufacturers recommends max. 50/50 water/meth. What size injectors do you think of Dmitri? Or do you have to test it whats optimal?

[prj]

I think almost all water injector manufacturers recommends max. 50/50 water/meth. What size injectors do you think of Dmitri? Or do you have to test it whats optimal?

Well sure, you run 50/50.
But the question is how much of it you run. There is a big difference between a very light spray of the 50/50 or spraying so much that you actually lean out your map and take advantage of the octane boosting properties of meth.

I don't remember everything to be honest, if I have any question about meth I just ask Jason, because he has a huge amount of experience running it on anything you can imagine.

[Thuppu]

Ok. Have you think of what kind of tank you'll use? I was thinking of to use the rear window washer tank. Don't know the size of it though..?

[prj]

Not sure yet.
I may run it on Wiper fluid and just off of the main tank.

Although it might be better to have a separate tank in case 50% Wiper fluid is not available or you can get pure meth somewhere and mix it yourself.

Anyway on the C4 shell there is a LOT of room under the hood to place the tank. I don't think it will be a problem.
Rear wiper tank should be ok, but you can't close it afaik (at least on my car it is always open?) and it is within the cabin technically, not sure how good it is to put stuff with meth fumes there.

[Thuppu]

I have a cork on my. I don't think some fumes can make more damage than already have happen in my head.

[prj]

I have a cork on my.

One more thing to add to the shopping list then

I don't think some fumes can make more damage than already have happen in my head.

[rst]

What size injectors do you think of Dmitri?

To take full advatage off the WI, you have to run at least 500+cc nozzel. Then you can lean out the boosted are quite a lot and add lots on timing.
A friend off mine had to lean out the boosted area about 30% or more. But that all depends of the setup you are running.

[Thuppu]

Found this on the Aquamist forum:

The HFS-3 is capable to delive around 1500cc/min, enough for most car to 800-900bhp.

100% water: 10-15% to fuel ratio (325cc-488cc) ....... 2x 0.6mm jet
M50/W50: 15-20% to fuel ratio (488cc-660cc) ......... 2x 0.8m jet.