New idea for 100% menthanol injection

[Brett]

My idea for this is to have a Fuel cell in the back of my car and use a regular fuel pump (walbro) to pump the methanol. Will there be any issues with this? ie. Regular pumps ability to pump methanol, ability to instantly flow at high pressure when pump is activated and mounting position in rear to far from injection point.

The real point of this is so I can run two fuel maps, one for regular fuel and one for fuel + methanol. This way I can choose between conserving methanol (due to cost obviously) and big power. It would be just like a nitrous system except easier to fill, cheaper to fill, not identifiably illegal and much longer use before requiring refill.

My other idea for this was to tap the signal from an injector and use an actual injector to inject the methanol rather than a brass nozzle. This would give superior control over methanol injection ratios.

I'd really like to hear peoples opinions of this idea so start typing :lol:.

Cheers,

Brett

[keithmac]

I`m not 100% sure but I think it`s corrosive to the pump / injector internals?, I run direct port with 6 0.3mm nozzles and that works well, the Shurflo pump may be your best bet with a couple of HSV`s?.

[NAnderson]

Originally Posted by Brett

My idea for this is to have a Fuel cell in the back of my car and use a regular fuel pump (walbro) to pump the methanol. Will there be any issues with this? ie. Regular pumps ability to pump methanol, ability to instantly flow at high pressure when pump is activated and mounting position in rear to far from injection point.

The fuel cell idea is a great one. I've got a 3 gallon fuel cell in the back of my Talon and it fits perfectly.

I'd think twice before using a Walbro fuel pump to pump the methanol, though. I'm almost 100% certain they're not alcohol compatible, and methanol is some NASTY stuff as far as corrosion goes. If you're dead-set on using a fuel pump, I'd look into Aeromotive or Bosch for their alcohol compatible pumps.

My other idea for this was to tap the signal from an injector and use an actual injector to inject the methanol rather than a brass nozzle. This would give superior control over methanol injection ratios.

Again, good idea on using a fuel injector to inject the methanol but you've got to implement it correctly. Depending upon how you tap in to your stock injector signal you may severely degrade the signal going to one injector (or possibly all) thus degrading your fuel delivery.

Look into an Aquamist FIA2 (to follow stock injector duty cycle) or MF2 (to set up your own fuel maps). They're both capable of driving fuel injectors.

[Brett]

The reason I wanted to use a fuel pump is that Water injection isn't popular in Australia and there's very few suppliers and they overcharge. So I thought I might be able to put a better kit together for cheaper.

But I've decided not to build my own kit and import one from the US.

What do you guys think about this kit:
http://aquastealth.com/index.asp?Pag...PROD&ProdID=88

[hotrod]

That kit is a basic Shurflo pump kit, there are several manufactures that build the same basic setup. You can also source your own parts and build your own.

The cheaper Shurflo pumps may not have the right seals to handle high concentrations of methanol. I had to relace my demand switch on my shurflo when it corroded due to methanol leaking past the original seals. Shurflo company was very helpful I simply called them and explained my issue and they sent me both a replacement switch and replacement seals that were more suitable for high concentrations of Methanol.

That price strikes me as almost too good, I suspect it has one of the cheaper pumps in it, or the web page is old and has not been updated recently.
I have not heard of that particular vendor before so cannot say what sort of support you might get from them.

There are several high profile companys that sell very similar systems and have good reputations.
I home built one and buying the shurflo pump on the web at the best price I could find. I paid almost the same for the pump alone a couple years ago for what it is worth.
The last price I saw for the true high pressure pump all by itself was $140 - $185 depending on where you buy it.
There are several versions of the sureflo pump that differ in max pressure, motor power rating and seal materials to name a few differences.

Spend some time shopping around and touch base with several of them and make sure you are getting what you think you are getting.
Here is the manufactures listings on the pumps, you might want to inquire what model number that pump is.

http://www.shurflo.com/pages/new_ind...ADP_12DVC.html

The design on those pumps produces significant pressure spikes so the pump rated by the manufacture to be a 60 psi pump can actually run up in the 100 psi range but is not really designed for continuous operation at the pressure level. The true high pressure pumps will draw about 11 - 12 amps at 120+ psi, so you might want to ask them about current draw if they are reluctant to tell you what pump model it is.

You really don't want your pump to fail when your under load.

Larry