water / meth

[dave_r]

I agree the differences are obvious but what we're talking about here is using an off the shelf tune (suited to a different purpose) as a substitute for an introduced variable. That to me sounds like a recipe for disaster.

Dean's car which I'm sure he'll confirm has been tweaked to suit his setup. Not upload and hope for the best?

[kaanage]

So the 219kW he posted at the Melb Dyno Day was not for a Giac map with an unmodified Pirelli?

[Corey_R]

Nope! When he says his car is stock, he means the engine internals and the turbo are stock

[gmx]

I can't find the thread but I had dynos of the same car with meth vs no meth on the same day and adaption redone for each run.

I forgot the ratio but he was spraying two nozzles (V6... B5 S4) about 15cm from the TB.
He actually made LESS power during spoolup but gained 30awhp after that point of inflection.
When tuned, he gained all over the powerband and made much more than 30awhp peak. This was a PJk04 in the vicinity of 420-470awhp on that particular dyno as far as I recall.

In short I would say if you choose not to get tuned for it, go for IAT cooling. And use a water bias ratio to assist in doing so. Or at the very least above 50%..

If I find that thread I'll post it here.
I also understand and acknowledge it uses an older ECU.

[kaanage]

Nope! When he says his car is stock, he means the engine internals and the turbo are stock

So if I were to fit a Nitrous injection kit to a car and had it tuned for it by company XYZ, I could show up to a dyno day and ..........

[Dyldo]

I've done a bit of googling, oggling, oogling, Wiki'ing and then found these dudes - Alcohol Injection Kits : Water Injection Systems : Water Methanol Injection : DevilsOwn Injection

There is a mad little youtube clip around the joint too.

[JustMark]

Hey preen

I've got some pics floating around somewhere. Basically the merc 300td has a kick down switch for the auto. Ive restricted flow to 300 cc a minute for the 3 lt engine. I used upto 50 %. Meths. Worked. Really good in the upper rev range but low down. It would bog down a bit.

How would u suggest I seal up the washer tank. It has a rubber insert that the pump pushes into. Its like a press fit. Is there any other sealant that is meth resistant that I could buy.

Cheers mate

[Rev 555]

Guys I am going to give it a go. I have decided on the Snow Performance Stage 3 kit as it seems to be one of the more popular options out there and not too expensive. I will document the build on a separate thread for 'educational' purposes.

[DeanB]

Whitey's Workshop in Merrylands (11 Fowler Rd Merrylands West - 9897 314 sells Methanol, was $225 for a 44 Gallon drum of the stuff. Have a few mates that buy through there - or at least did in January - for dragcars and sprintcars. They will sell smaller quantities as well Eg. 1 Litre.