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[lilpooh21186]

Ok i have an idea but im not to electronic savy i the terms of solinoids and shit like so.

Basicly on my new build i will be using ectune for my EMS but i also want to make a homemade water meth kit a local shop guy turned me on to this idea using a washerfluid resivore only problem is he has to pull back wiper handle to engage spray. I know i need some type of ecu controled trigger to activate the pump but im not sure how to go about it. I want to use elecboost control with dual maps one for 7psi stock gate and another 12psi using secondary maps with meth injection. I know there are secondary events that can be controld via Certian condtions but how would i go about activating the pump. i was thinking Run power from the battery to the pump and mabey having ecu act as the ground But im honestly clueless about the shit so help a nog out.

[Joseph Davis]

Most of the ECU outputs are good for a very small current, nothing that would support a fuel pump.  Some of them will take half to most of a second about drawing closed the contacts on a common 30A Bosch relay, making that not ideal either.

I have a bag full of DC logic high speed 3A/60V switches from Opto 22 in my toolbox.  Similar to these, but in red and I have ~$3/per in them:

http://www.opto22.com/site/pr_details.aspx?cid=3&item=DC60MP


Use the ECU as the ground path to activate the SSR (solid state relay) and you'll be golden.

[Joseph Davis]

(eBay is your friend)

[lilpooh21186]

thanks jd what we doing is runnig it from the washer fluid pump. to a .46 nitrous jet in the  charge pipe. The mix is 2 bottles of heat gasline antifreeze and top off with with washer fluid -30* suppose to be some type of 45-55 mix.

[Joseph Davis]

I like racegas, or if you're cheap E85.

[lilpooh21186]

im extreamly cheep this is my test subject. STOCK B16 ftw

[88dx]

why not just use a boost switch like every meth kit has 

[lilpooh21186]

 wanna try ecu control I think I figured it out

[HiProfile]

STOCK B16 ftw

aaaaaand...now JD avoids this thread.

[Joseph Davis]

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