Jaared

I can get a pump from work.

I has a break down of the PSI at what GPH tip it sprays through.

I cant find any numbers on what GPH tip i need to use, And how many PSI the pump needs to be.

This one is a 250psi at like .9 GPH and the psi goes down from there.

HELP!?!? I want to do the DIY water injection thing but if i can get a setup for 300 or less ill just buy one.

NZConvertible

Here's some info for ya.

Water Injection

ZeroBanger

search for my thread in the 3rd gen section. I did the DIY kit, it will cost you about 145.00. All the info is there, for my 3rd gen I use 7 GPH nozzle with a 60 PSI pump.

ZeroBanger

Here are some details on the GPH, etc.

Ok, so the break down is like this:

In my Water Injection setup inwhich I have installed a 6.32 GPH nozzel. I need to find out my percentage of water to fuel at any given duty cycle. I want it to stay between 15-25 pct at all times, definately not go over 25 pct. I found that to convert CC/MIN to GPH I should take CC/MIN X .016 to get GPH. With that in mind I came up with the following.


Nozzel: 6.32 GPH

3500 CC 56 GPH
Duty Cycle CC GPH Ratio Duty Cycle CC GPH Ratio
0.49 1715 27.44 23.03% 0.66 2310 36.96 17.10%
0.52 1820 29.12 21.70% 0.67 2345 37.52 16.84%
0.54 1890 30.24 20.90% 0.68 2380 38.08 16.60%
0.55 1925 30.8 20.52% 0.69 2415 38.64 16.36%
0.56 1960 31.36 20.15% 0.7 2450 39.2 16.12%
0.57 1995 31.92 19.80% 0.71 2485 39.76 15.90%
0.58 2030 32.48 19.46% 0.72 2520 40.32 15.67%
0.59 2065 33.04 19.13% 0.73 2555 40.88 15.46%
0.6 2100 33.6 18.81% 0.74 2590 41.44 15.25%
0.61 2135 34.16 18.50% 0.75 2625 42 15.05%
0.62 2170 34.72 18.20% 0.76 2660 42.56 14.85%
0.63 2205 35.28 17.91% 0.77 2695 43.12 14.66%
0.64 2240 35.84 17.63% 0.78 2730 43.68 14.47%
0.65 2275 36.4 17.36% 0.79 2765 44.24 14.29%

Jaared

wow you went math on it...

my pump is a 2.2gpm 60psi max pump..

i odered the tip from mcmaster 6.32gph@40psi

i am pulling parts right off the parst list on this site...

http://www.turbomirage.com/water.html

so far i have the pump, nozzle, water solenoid, inline filter, tank filter, and a loom of 4 in one wire.

im planning on doing a write up on how-to for a FC... lots of pics along the install process.

at what PSI should i activate.. im going to be running 10psi and creeping to 14psi with the stock IC... this is bad but until i get a FMIC water injection and a IC sprayer with temp switch is my only option.

Im thinking about 8psi or so.. just to be safe. Im not going to tune to the water.. but have it so i wont pop my new baby.

ZeroBanger

Mine comes on at 8 PSI, if you have water injection a FMIC is a waste of money. My intake temps today were 28-32C all day with normal driving. Thats with a tiny blitz smic..

EDIT: you have a turbo II, maybe a front mount is your only choice, not sure. the 6.32 gph is at 40, it runs about 7.2 at 60 psi.

Jaared

well the pump is a 60 psi max... so it sill run lower at a higher gph... im pulling info right from that how to site and the pump i got is better than the one listed in the parts list.

why whould a fmic be my only choice on a tii? im want to know whay you said that...

ZeroBanger

I know nothing about the FC, I had a fB and FD. ON an FD we have the option of getting a SMIC upgrade. Thats a better choice IMHO, because it doesn't block your radiator, make you move your battery, less pressure drop and less lag. I dont know what options the TII has so im not going to judge.

Also, all the "Brass-tite" fittings are wrong, goto my thread in the 3rd gen section "Pics of my water injection setup". I listed the correct ones and part #'s from Home depot.

Also, the 3/8 hose will not work as well as the very small .17 Inch hose that you can get from Home depot (I know I tried both). the cost of the 3/8 fuel line is 1.20 a foot for 15 feet =about 18.00-20.00. The hose I use is a nylon hose that costs 1.20 (total price), its the same diameter that Aquamist uses, believe me its better.

David

Jaared

thats alot of info... and i read it all. But.. and yes there is a but....

what problems have you ran into?

What tips would you give to me knowing im about to install?

how did you test the boost switch and system like the page says you need to do. it says hand pump but umm yea thats kinda vague.

you seem to be the man to talk to, pour the knowladge on me!

jared

ZeroBanger

check out my thread in the 3rd gen section , I know there is alot of info but all my problems and changes I had to make are in there, I dont want to rehash it again. Any questions that you have please ask in that thread, thanks.