take a careful read of the two recent threads from Aquamist...

thanks to fellow board member and FD owner/tuner Scott and Richard of Aquamist, a key technical hurdle has been overcome and we shortly will be able to purchase an AI system that will be capable of paralleling our BASE FUEL MAP.

this is huge.

until recently the actual total (primary AND secondary) Injector Duty Cycle proved elusive to pick and reference off of.... you could use either one or the other but not the total of both.

as a result, it has been impossible, up to now, to reference and tune our AI system delivery off of FD IDC.

AQ's new system is a great leap forward.

AQ=IDC

most current systems reference AI delivery volume off of boost. the problem is if you look at your base fuel map at a particular boost you will note that you use less fuel at 4500 rom than 6500. current AI system will deliver the same amount at both rpms.

the other key issue is that, properly tuned, we use 15-20% less fuel after peak torque... if we are still running the same boost (governed by the boost controller to, say 18 psi, we will get the same amount of injectant at 6000 as we will at 8000 as we are running the same boost. we really need 15-20% less injectant since base fuel is decreasing.

since the AQ parallels our base fuel it will trim AI delivery after peak torque.

wow.

this is a big deal.

finally, the ultimate limiting factor as to delivery trim is the PUMP in our AI systems. conventional AI systems delivery control is governed by pump speed, however the pump has inertia and mass and is incapable of bobbing and weaving properly with our fuel injectors, even if it could be asked to parallel the injectors.

the AQ system does not operate in that manner.

the pump merely fills an accumulator volume and the HIGH SPEED VALVE (think fuel injector) is responsible for delivery.

the HSV is so fast it will turn on a dime just as your fuel injectors.

this is brand new stuff. if it works properly, it will change the AI landscape.

yes, it is a bit more expensive than other more traditional AI systems but consider what it will allow you to do.

my objective here is to make sure you all know about this new technology. it does not obsolete other systems, it does present a significantly different option.

not running (any kind) of AI still remains by far the worst option.

howard coleman

 

This is interesting stuff. This along with the other thread right now are making me second guess just using a progressive controller and a pump.

 

Just arrived today.
I will post a pic up of some of the bits.

I will be installing this over the next few weeks

Scott

 

that's great... we all look forward to your results and wish you good luck.

hc

 

Cool cant wait for the Pictures Scott
Spoke to Richard before I went on Hols, I should be getting the Kit beginning of March, plus got some trick bits from Japan all to help with the launch

 

Mark. it will be a few weeks or maybe more before this is all fitted and finaled. I have made a start but there is lots to do in a system that can do so much.

Scott

i have started to blog the install. so i will keep it up to date

 

Post progress pics ...

 

Ok boss. i will get some up asap. I have been busy on my kart all weekend so i have done nothing since thursday. ( i had a little off and bent the rear axle...ouch )

Scott

 

props to aquamist for this...



Coolingmist...... hope to see you do somthing like this in the future.. looking forward to it :]

 

LOL... please dont swear on this thread.

Scott

 

Currently struggling for time and effort i have some pics which are of the mounting of the electronics







Still some wiring to do and i have got a little further on than these pics ( but not much )


sorry about quality of pics

Scott

 

hey scott,

we know the deal on the fuzzy pictures. richard took them so they wouldn't disclose any trade secrets

when you have the edge on the competition it is advisable to do fuzzy. we all look forward to you getting it fired up. you may be the first person in the world to have an IDC based AI system on the rotary.

cool. next it will be the 500 on Pump-AI Club.

hc

 

nice one Scott!! Im getting excited cant wait to get mine now, im sooo excited I think im going to do a sex wee hahaha

 

New pics. Had some time today

HSV



DDS3 flow sensor



Scott

 

Very interesting read! Way to go AQ!

 

Car is now running. I have a few jobs to do ( ie getting every thing dataloging etc )







I have used 2 x 520 cc nozzels 8-)







still waiting on fuel cell



I ran the car today. all seems well. This is going to be very differant to tune.

15 deg C ambiant temp today . car was pulling 9 deg temps. still some fitting and lots of tuning to do.

I am very surprised at the amount of methanol i have added with little effect


Scott

 

I may alter some things yet !

 

The set up is now running around 30% alch in volume

 

have you removed pump or just added meth?

 

I needed a new fuel map after the previous system. ie i had to remove fuel from varoius boost levels. this one is differant. It switches with injector cycle so its more rev dependant.

I have made a new base fuel map which was 90 % there. the boost areas are falling off the WB02 at 10.4:1 lol. Im back to 10 deg adv. There is a load of tuning to do. Its remarkable. there is no hesistation when the AI comes on at all. none at high end. The map is safe on 93 ron pump. I stuck the meth in ( 1040cc ) and the tq went through the roof. As did the afr lol.

 

Thats very good news about the torque! so did you have to remove more fuel from your previous tune?

 

Mark. My car is not fully road legal at the mo so i have more fuel in the map and less timing than i had at jap show. I needed a safe fuel only map to start with. I will start the tune as soon as i sort MOT etc.

Scott