:::RHMT::: Real Home Made Turbo
General Category => Engine Management => Topic started by: HiProfile on November 14, 2011, 08:13:36 PM
-
I've been perfecting this for a while, and the bench is 99% done. I just have to run some fluid through to remove any shavings/etc. I have an adjustable FPR that goes on it and returns it to the tank, but it will pump into a jar until cleaned.
It's just a D16 rail tapped where the stock fpr is, with washers and threaded rods to hold the injectors in. Later I'll be getting 14mm adapters for k-series size injectors. The two pumps are just 79lph civic pumps, but I have 139lph dohc pumps availible. It pumps into the delrin bulkhead to a single outlet, then to a stock CR-V filter, through the rail, and back to the delrin bulkhead.
I used threaded rod to make bulkhead electrical connections - ground is shared, while possitive is seperate for each pump. Later if I step up to larger pumps, I can run one or both depending on the injector size. These two should pump enough for four 700cc injectors at 43.5psi, and the GSR pumps might do >1200cc.
I have some picaxe microcontrollers on order, and I'll eventually add those for multiple pulse widths and frequencies JUST to please JD (idle flow).
(https://realhomemadeturbo.com/forum/proxy.php?request=http%3A%2F%2Fimg69.imageshack.us%2Fimg69%2F9205%2Finjectorbench101.jpg&hash=f0ef7f0199db9065c73f03fe93463966d8a5e5a7)
(https://realhomemadeturbo.com/forum/proxy.php?request=http%3A%2F%2Fimg191.imageshack.us%2Fimg191%2F5108%2Finjectorbench102.jpg&hash=63260d9536330100795f313cbdf7fad9bb79ee08)
(https://realhomemadeturbo.com/forum/proxy.php?request=http%3A%2F%2Fimg823.imageshack.us%2Fimg823%2F5168%2Finjectorbench103.jpg&hash=15d455862704f4f5d0efc69ba744286961fcb50f)
-
Kool when are ya ready to flow test our shit? :noel:
-
I just have to finish the wiring, make the injector clips universal, and it's go time. I won't be able to get super-accurate until I get the microcontroller set, but I can test it against a stock 240cc and get very close. With the picaxe I have plans to also check for latency, then get a bench PSU to try 11v to 14.5v.
-
Sweet, can not wait to see this bench get some action.
Vids and lots of pict. for the write-up when ya do the wiring, please. :noel:
-
Nice Accord motor.
-
I'm baller like that. I only bought it for it's injectors & clips though... :noel:
The wiring will be straight forward. Each injector will be grounded and fed battery voltage via an EV1 clip with the outside shroud removed. All injectors have the same pin size and spacing. I also have a resistor box to swap in for low-z injectors, but my main goal is high-z injectors.
For now I'm just doing raw flow tests to determine size.
-
Fuck yea!
-
Now for the controller. I would normally program lots of presets into it, but the chip limits me to 15 presets (sub procedures) max. I'll need to use input variables to get what I want.
I'm thinking of having a simple input dial (values 0~10) for it and 3 input-select buttons. It will let me select injector duty and frequency (rpm) in steps that will be useful (so no 2% at 15000rpm). Zero will select a static flow test, since there 0 rpm and 0 duty wouldn't flow fuel...
I'm thinking I should make duty cycle type selectable, as in select percentage OR milliseconds. I would set the dial to a number, say 8, then press a button which inputs that value into the chip. 3 different buttons could let me use the number either for 80% duty (8 x10%), 8 milliseconds flow time, or 8000 rpm (8 x1000rpm) for each spray window, it just depends on which button I press. The 4th button starts the program.
This will give me various modes for cleaning, checking flow, and letting me calculate injector dead time.
Any other ideas?
-
Don't mind this, just fooling with code and need a way to "mail" it home:
main:
high b.0 ; light up LED
let b1 = 0 ; set variable DUTY percent
let b2 = 0 ; set variable DUTY milliseconds
let b3 = 0 ; set variable FREQUENCY rpm
goto blinkled ; call main procedure
blinkled:
gosub dialin ; call sub procedure and return
if b1 > 0 then
for b0 = 1 to b.1
for b0 = 1 to 50 ; loop 50 times
high b.0 ; light up LED
pause 10
gosub dialin
low b.0 ; dim LED
if b2 > 0 then
for b0 = 1 to b.2
for b0 = 1 to 50 ; loop 50 times
high b.0 ; light up LED
pause 10
gosub dialin low b.0
pause 100
if b3 > 0 then
for b0 = 1 to b.3
for b0 = 1 to 15 ; loop 15 times
high b.0 ; light up LED
pause 10
gosub dialin
low b.0 ; dim LED
dialin:
if pinC.1 = 1 then ; if DUTY.per pin is on
pause 100
readadc C.5,b1
let b2 = 0
if pinC.2 = 1 then ; if DUTY.milli pin is on
pause 100
readadc C.5,b2
let b1 = 0
if pinC.3 = 1 then ; if FREQUENCY pin is on
pause 100
readadc C.5,b3
b3 = dial.pin
if pinC.4 = 1 then ; if START pin is on
pause 100
goto Flownow
return
-
Nice work cant wait to see vids. What will you run threw them to clean?
-
Mineral spirits for flow, then 50/50 spirits + Chevron cleaner for dynamic flow/ultrasonic cleaning.
-
Damn, This is going to be bad ass. Jd likes goats. Baaaaaa. Baaaaaaa.
-
New code is written, just need to x-fer to PC, test, and alter again. I'm adding a ultrasonic cleaning mode where it will click them on/off for 1-10 minutes but keep the pumps off.
-
The code is finished. ;DDD Its not very pretty, but it simulates w/o problems. Now I just have to test it on a breadboard with LED's then wire it up.
You turn the dial to a number, then press either Duty button (milliseconds OR percentage), then change the dial to rpm x1000 number and press the Frequency/Mode button, then press start. Pump primes and injectors pulse for 6 seconds.
Turn the dial to Raw Flow, press Frequency/Mode button, next press the start button, then watch it prime the pump and flow all injectors for 6000 milliseconds. Multiply by 10 to get raw CC/Min.
Turn the dial to how many minutes your ultrasonic bath is set to, press either Duty button, next turn the dial to Ultrasonic and press Frequency/Mode button. Once you hit the start button it will pulse them in alternating 10, 25, and 50ms loops.
-
I have the bare bones working atm. I'm testing it with a chip that has less inputs/outputs, so I just reprogram it when I want a different mode. Right now it has a 6 second wide-open test for static flow and a 10/25/50 millisecond pulse mode that has them open for 6 out of 12 seconds.
It tests fine with at least 7 amps (1 peak/hold and 3 saturated), but I have a resistor box that plugs in by changing 3 connectors. I just have to clean out the fuel rail and pump block, then I'm set.
I will try to get vids monday or tuesday.
The next step is modding the power supplies so I can test latencies at different voltages, then setting up the full-featured chip.
-
I'll think about it, but I need to make sure it's stable. The controller is easy to replicate, it's just the hardware that's time consuming. Especially if you want it to look nice vs just functional.
Right now it can clean any 12mm top feed injector, and 14mm top feeds would need an adapter. Actually the 14mm fit if you put on two 12mm o-rings. Side feeds would just need a fuel rail & a FPR adapter from ebay.
-
I just found someone who was serious about getting an ASNU "Junior", and his quote was $7100. That's fucking crazy. The only thing that I know I can't match in functionality is the ultrasonic cleaner, mine was $30. :P I can also reprogram mine. Anything can be done, it's just a matter of time and materials.
The pulse side of things is solid. This thing can control down to 10 millisecond pulses (1/100,000 second).
-
So between a pump being locked up, another with a bad relief spring, and the power supply I tried only giving me 10 volts, it wasn't a good day.
With one integra pump it makes 55psi max, and integra+civic pump it makes 40psi max. ::)
Tomorrow I'm going to do some testing with just the single pump, and I'm ordering a ching-chong 255lph pump tonight.
-
Got a bit more power with the different PSU, but there's a good 2 volt drop between the psu and pumps. I might just go back to a car battery.
Video:
http://youtu.be/mIb0PreP48A (http://youtu.be/mIb0PreP48A)
Btw
Unknown bike injector #1: 290cc
CBR 06-07 1000RR injector #2: 250cc
Scion tC injector #3: 320cc
Modded Denso, 00-ish Protoge #4: 220cc -> 475cc
-
Holy shit that is so cool. That one injector at the end looks to be out flowing the other :noel:
-
I think mineral spirits has enough difference to toss off my raw flow numbers, but for matching purposes it will be fine. I'll just have to measure weight using specific gravity to get the correct CC/min.
-
I dig the roundy's water bottles. That looks bad ass. Going to have to check it out in person and bring some injectors.
-
I dig the roundy's water bottles. That looks bad ass. Going to have to check it out in person and bring some injectors AND YOUR $50.
Sounds like a plan noggle.
-
That's some solid work noggle.
Wouldn't mind making a similar setup some day.
-
You'll have to wait 10 yrs to use water bottles. My patent details them and is active for that time period. :evil:
-
You'll have to wait 10 yrs to use water bottles. My patent details them and is active for that time period. :evil:
I had actually planned on spending a few bucks and using plastic graduated cylinders. Notice I didn't opt for the spendy glass/Pyrex/whatthefuckever graduated cylinders.
:P
-
I think mineral spirits has enough difference to toss off my raw flow numbers, but for matching purposes it will be fine. I'll just have to measure weight using specific gravity to get the correct CC/min.
You can rough and sleazy it by using a control injector of a known rate.
-
That's really cool! What are you waiting to build a flow bench? I would like to build one, but I have no free time :(
-
It took very little time to rig it, but forever to get it how I wanted it. And I'm still not done. Since I have ADD I can only do an hour of work per day.
I'd not recommend plastic cylinders, since most are polyethylene and gasoline or spirits will eat it up. There is a surplus science place close by, so I get "chiyrex" for a decent price. I definitely recommend getting the plastic anti-roll rings for them, that woulda saved mine.
I think mineral spirits has enough difference to toss off my raw flow numbers, but for matching purposes it will be fine. I'll just have to measure weight using specific gravity to get the correct CC/min.
You can rough and sleazy it by using a control injector of a known rate.
That's what I did before I had my injector driver. A clean 240cc, and it worked out darn close. I want to send out a handful to just get flowed so I have a good baseline to compare to.
-
I was attempting to make a cheeky joke, but failed.
:-\
-
I decided to re-write the entire code and make it simpler.
You turn the mode select knob to one of 15 settings, it selects that mode while idle, then starts when you press the obligatory start button. It fits on the smaller chip, but I'll need the next larger chip if I want a segmented LED display for viewing the mode.
-
This is some pimp shit.
Did i see something about an led display??
-
Yeah with 2 extra chips and a whole bunch of wires it can display the mode number (up to 99). I coded them like mode 0, 5, 10, etc just in case I needed to stuff a bunch more modes in. The thing is I don't have the 7-segment LED's, nor do I have those controller chips.
-
LMK if you need offset data, etc.
-
It took very little time to rig it, but forever to get it how I wanted it. And I'm still not done. Since I have ADD I can only do an hour of work per day.
I'd not recommend plastic cylinders, since most are polyethylene and gasoline or spirits will eat it up. There is a surplus science place close by, so I get "chiyrex" for a decent price. I definitely recommend getting the plastic anti-roll rings for them, that woulda saved mine.
I think mineral spirits has enough difference to toss off my raw flow numbers, but for matching purposes it will be fine. I'll just have to measure weight using specific gravity to get the correct CC/min.
You can rough and sleazy it by using a control injector of a known rate.
That's what I did before I had my injector driver. A clean 240cc, and it worked out darn close. I want to send out a handful to just get flowed so I have a good baseline to compare to.
Send them to me and I will flow them on the flow bench for you.
-
Just got everything 100% today. For $50 this cdm 255hp pump is wicked.
With luck I'll be spitting injectors out by the dozen in no time. I have a few days off soon and the weather is supposed to be great.
-
Sweet!
-
good i need a set..
-
can you throw up your code? im getting into embedded programming and want to see some practical implementations.
-
I'd rather not at this point. It's just BASIC that's been modified a bit. On the picaxe.co.uk forum you'll find a lot of sample code. Arduino code is probably closer to what you're looking for tho.
-
Okay, slight snafu. I ordered 2 sets of the 1k injectors from 2 companies (to see who had the best service)... Turns out both use the same drop-ship warehouse, found out I ordered 2 from 2 companies, and both were cancelled.
So word from the wise, if you have to check on customer service, wait for one to be delivered before ordering a 2nd item!
-
Orders were all corrected.
Soon I'll have 4 sets of "1000cc" injectors for you nogs. Their actual flow will be ~880cc, just like Injector Dynamics.
-
Any thing bigger in the works?
-
Yes, but that's up to Sewell. If he doesn't get his controller soon, maybe not. I know he had found something.
-
What is the turn around time if I send some Delphi 780cc injectors to test? :noel:
-
I'm moving from the 11mm rail to the 14mm rail asap, and I won't have adapters for them for a few days/weeks. I want to get sewell's controller tested & shipped before I do much else.
Once I do, they'd ship out the same or next day I receive them. I'm in WI, so it would be a week round trip.
-
Any thing bigger in the works?
There is 1600 and 2100
-
Any thing bigger in the works?
There is 1600 and 2100
Fuck yea Tom lmk when your ready to drop them. Might be try running no coolant and just run alcohol with fully filled sleeves.
-
Any thing bigger in the works?
There is 1600 and 2100
I may need a set by May for the PNW meet :noel:
-
Russ you realize 1600cc is enough for 700hp on E85, right? Or maybe you do... :evil:
-
Russ you realize 1600cc is enough for 700hp on E85, right? Or maybe you do... :evil:
No E85 for me E10 or E15 maybe :noel:
Planning on maxing out the He351ve :noel:
-
very interesting stuff........ seems pretty complex compared to other stuff ive seen.
-
With Tom's help I made it a bit more complex than I first imagined. I'll be posting some pics and maybe a vid soon.