I will be working on the circuit board next week, prototype after that and pre-production (small batch), with 3 weeks. From breadboard to circuit board take sometime - not in my control.

A few pictures of the installation?

 

soon. . .I need to button up a few more things before I start releasing pics.

I'm not gonna feature the car until the build is done, or at least VERY close. Which as we all know, that last "2 weeks" can really stretch out. I got a way bigger tax return than I thought this year though, so I'm pretty sure I'm gonna be good to go. I'd definitely like to have the summer on before I try to make any power though.

Thanks Richard, I know you're busy, just thought I'd check in.

ryan

 

So in thinking about it more, and realizing I don't fully understand the signal that injectors recieve, I came up with another concern/question. I realize that it is not at all timely, but it exists nonetheless.

Do saturated-type and peak-and-hold-type injectors recieve the same type of signal. In my case, I have saturated primaries and peak and hold secondaries.

Is the summer going to be able to handle this difference? Again, if this is a retarded question, please forgive me, I just don't know the logistics of injector signals. Would someone please enlighten me on what the injectors see from my haltech or point me to a good source? I read the description in the manual, but it doesn't give any specifics.

Thank you.
ryan

 

Richard L, aqmist. . .

Hello?

Any word on the summer?

 

Yea, I bought the kit because of the summer. My kit is gathering dust, though I admit I haven't really had time to install it anyway.

 

I'm waiting on the summer as well.

 

I am sorry for the delayed reply.

A saturated driver applies a full length negative going pulse to the injector during the turn-on period.

A "peak and hold" driver applies a ~1ms negative-going ground pulse to open the injector and then switch the a holding current for the rest of the period. The holding current varies between manufacturers - approximately 0.5-1A.

The HFS-5 can pick up both type of pulse, between 16 ohm down to 2.5ohm injectors. Let me know the coil resistance of your secondary injector. Below 2.5ohm, I need to re-configure the secondary input circuit for you.

You can change a peak and hold systemn to a saturated system by putting an resistor inline.

 

I will not let you down, please install the system first so all the problem can be ironed out before things gets complicated with the summer.

Richard

 

Are there any writeups currently available regarding the install?

I want to inject at two points...precompressor (very small nozzle) and after the intercooler. I am thinking 25% Meth, 75% water mixture the meth just for vaporization/atomization. I am not looking for crazy HP just something reliable in this 115+ degree heat we have here every day during the summer. I am a little intimidated by the complexity of the kit and don't want to screw up my freshly built engine/turbo system that I have waited 10 months to get back to me.

 

So I'm going to control the High Speed Valve using an Auxilary Output from my Haltech E11v2

The HSV is controlled using a PWM signal right.

Richard, can you please offer a chart saying what type of signal @ what strength is needed for what flow rates using these kits?

 

I don't have the time to install it and then take it apart again to put in the last few parts. Just let me know when the summer is ready.

 

I do not have info on any RX7 write ups but I do have a couple of SRT-4 installs worth looking at......theres some good info and some good images. Regardless of car type I think a lot of what anyone installing a HFS-5 would read in these could be very useful.

http://www.srtforums.com/forums/showthread.php?t=334573

http://www.srtforums.com/forums/showthread.php?t=334057

http://www.srtforums.com/forums/showthread.php?t=338924

About jets located at 1) pre-compressor injection and 2) after the IC.

1) I think it would be advisable to keep pre-compressor injection control separate from other jet locations....meaning think of this a separate injection system do not mix these up using same HSV and FIA2 ...see the link to the thread below for additional reading on this.

2) I think this location is great for intake air charge cooling and it one of the locations I use.

Use jet adapters to have a couple of different choices to use. The jet adapters come with blanking plugs so that you could add adapters to several locations and then move the jets around to see what works best for you. Then again you might not like to have holes drilled all over the place.....if you need additional jet adapters please send me an email to jackblalock(AT)gmail.com with your shipping address.

Also two last items, Aquamist has soft pipe jet adapters if you need to locate a jet in a soft pipe, these are $35.20 each. I can be reached over the phone if you need assistance with the kit (908) 781-2002 6pm to 10pm during the week and at misc hours on the weekend......if you miss, me leave a message I'll return the call.

Heres the link to some good reading on pre-turbo injection.
http://www.aquamist.co.uk/phpBB2/viewtopic.php?t=267

 

I already read that whole thread on Aquamist.com, and just reread it. I just dont know how it fits my application. There is a lot of theory in there and not a lot of results. How does the HFS-5 compare to Aquamist's other kits 2d, 2s, ect? I am just wondering where it fits in... Also, I do not want to make things any more complicated than they already are. If injecting precompressor will require a separate system, then I wont do it. If I can do it by modifying my current system, then I will.

I am not looking for crazy horsepower, just something to keep detonation down in these ridiculous 115+ degree temps we have here. I also do a lot of track driving (road course) and would like to have some piece of mind while doing so in the RX7. I thought this kit would provide that. If the kit was engineered to inject post intercooler, then that is what I will do... What is the best way to set it up?

 

Any updates on this. Is the pre-production completed? I'm starting to doubt I will ever see this and I bought the kit in large part because it was promised.

 

Here is a recent review of the system on an Mitsubishi EVO.
http://forums.evolutionm.net/showthread.php?t=282469

The best way to set the system up as a safety measure is to run 10-15% injectant to fuel. Totalling up your injector flow and ouick the jet accordingly.

Here is a chart of the flowrate. Substract the boost pressure from 125psi and select the jet to match the m/f ratio.

pm, post here or email me for more detailed question unique to your set up.

Richard

 

I made no excuses but apologise sincerely of the delay. The work on this unit has been on/off along side with other projects. It is 80% there.

In the beginning, I was going to han-make these units but the HFS-5 RX7 users has shot up and no longer possible to handmake the item, take about 8-10 hours to make each one. So I have decided to productionise it - this caused the delay.

Richard

PS, there is no reason why one can't get the system installed and use the secondary injector as reference for the time being, you can add the unit in later on.

 

I have the FIA2 reading off of the primary injector. I started with the secondary but wasn't getting the FIA2 green light to come on until the secondary injectors came online (obviously) under load, higher in the rev range. Was I wrong to switch to the primary? It seemed to function well up until last night...

Last night the HFS gauge had a B glowing occationally at the end of the flow bargraph line. It was strange...neither I, nor my tuner, could tell what was going on. I am going to give Jack a call tonight to see if maybe he can help but I wanted to post here to get the information out there.

My kit is installed I will be working through the tuning in the next couple of weeks.

 

"FIA2 reading off of the primary injector"

i looked for your EMS but didn't find it... if you run a Power FC and Datalogit and map the Primary and Secondary ontime you will see that you should not try use Primary OR Secondary Ms ontime as they bounce around and do not relate, separately, to total fuel usage.

i think the AQ unit has an X-Y graph on which you can direct on a cell by cell basis the AI. if it does you can just parallel total fuel and be in fat city.

howard coleman

 

Hey, if you had tried to reach me and missed me, I should be home tonight after 9:00....I've been working on my car and I have not been near the phone lately.

If you get voice mail, leave clear message.....lots of messages are hard to understand and unclear and I can not get the info even after replaying some messages several times.

 

The kit is supposed to run off of IDC...I thought mapping on the primary or secondary would be ok... What else can i do? How else can I run the system?

I have the Power FC.

My car is really not running well and getting lousy gas mileage, I need to tune it but I also need to get the WI issues resolved before I do any serious tuning.

 

Anyone know where to find Richard ? he doesnt seem to be on the board much anymore , I need one of his highflow pumps !

 

Marcel, I am here !!!

 

You can purchase the pump from our uS importer, BKA. I believe it is ~$150.00

It doesn't come with any fittings - I presume you have them all from the present system?

 

Finally ! ......Hi Richard ! , I got the piece for the spray bar nozzle , thank you yet again . Can you thell me what tap was used on in hole? As for the pump , does BKA have a web site ?

 

I am thoroughly confused now...

Can I use the HFS-5 on the RX7 without the summer? Some say yes, some say no. Do I connect to the Primary or secondary injector?

I sent an email to Jack with no response...