I've been on the fence about witch AI kit to go with, but I think I finally settled on the Alkycontrol from Julio Don. I've been researching these AI threads non stop latley trying to find the perfect setup for my aplication.

I'll start by sharing a little info on my setup.
HBP REW
GT3574 turbo
850/1600 supra fuel pump
JE FC1000 ignition amp.
Fluidyne w/evans NPG+
Greaddy FMIC
My FD is a Touring model so only one oil cooler (duels are on the "to-do" list)
91 octane

My goals for the car are to have a solid setup that I can enjoy on the street.(90%) And also drive it to a road course, beat the hell out of it, and drive it back home(10%)

Now back to the AI... I've been trying to decide if Julio's Progressive kit will hold up in the conditions of hard track driving, or if I will be better suited going with a constant speed pump with an injector. I know there are several people running his kit on the street with GREAT results. But the only person that I've read about "tracking" the kit is howard coleman (please chime in) and it seems to have worked flawlessly for him as well.

BTW I'm wanting to run this turbo up to about 20~25 psi on the street (If it can handle the abuse) And 13~18 on the track.

I guess the reason for this post is to get some user feedback. Please help me decide it I'm making the right choice. And If I'm not, feel free to point me in the right direction.

Cyan

 

Sorry guys, posted this in the wrong section.....mods please delete.

 

there's lots of overlap between the Single Turbo Section and the AI section re your post.

you pose an interesting question. one that is not entirely answered at this point. it is not only interesting but important re the FD as it was designed for road racing rather than drag racing.

your question is:

re AI, does the traditional (old) architecture work for road racing and boosted street?

we know it works for drag racing. and it works well.

the "old" architecture refers to using a nozzle and jazzing a pump w varying voltage to effect output changes. newer twists on this theme incorporate solid state electronics to vary the ramp and max output.

very crude. consider if your car ran it's gas delivery on this setup.

Hot Rod magazine recently took your basic cammed up V8 from a carb to an aftermarket fuel injections system w no other mods added. mileage moved from 10 to 18!!!!!!!! additional Tq and HP appeared also.

that's the diff between a carb and FI. i submit that a nozzle and a big heavy elec pump (think not able to react quickly due to mass) are nowhere near a carb.

in addition and just as important.... the pump speed is directed by engine load (boost). so if you make target boost at 5800 rpm you get X injectant. if you hold target boost all the way to redline you get only the same amount of delivery. look at your base fuel map and i can assure you it won't look constant at various RPM points.

finally, w regard to either road racing or aggressive street driving... you are on and off the throttle under boost. the mass of the elec motor driving the pump and determining delivery cannot keep up w your right foot.

so old school does work for drag racing when your right foot is on the floor.

it doesn't work anywhere else.

NEW SCHOOL AI works EXACTLY LIKE YOUR BASE FUEL MAP.

you have an X and Y grid. my FJO setup is 16 X 16. (remember this is only in boost so you don't need as many cells).

X= RPM Y= BOOST/LOAD... here's a copy... the settings are % of max injector delivery...



i run 100% methanol thru two 700 CC/Min Solenoids/Injectors. i have replaced approx 25% of my gasoline.



in 08 i have had 2 dyno sessions w the new HD AI setup. the first session, July, we found we had varying AI pressure so back to the drawing board.

i switched to a Bosch 044 variant (909) and added a Weldon adj pressure regulator and a return line.

this Sep it was back on the dyno (Beyond Redline, Green Bay Wi) and we did 23 2000-8000 4th gear runs. boost one bar to 20 psi. other than checking my tank in the middle of the session we never gave one thought to the AI system. which is just as it should be.

we made 498 rwhp on 93 octane w knock under 21 (PFC), pre turbo EGTs 1550F, running a conservative 12 degrees IGL w 11 split. after each run the UIM was really really cold. we have a happy tunable motor.

i expect to be ontrack next wednesday and will give a review as to driveability.

one of my objectives is to see if i can run 20 psi ontrack w the cooling benefits of magic methanol.

in case you haven't noticed almost all road racing FDs turn the boost down to one bar when they go road racing. given the superiority of the FD chassis that generally is enough.

20 psi sounds like more fun.

i did run the Alkycontrol system for 2 years and found it to be excellent for what it was BTW.

howard coleman

 

The alkycontrol system is the best of the 'crude' AI systems out there but I can tell you it works darn well. The two small problems are the initial lag time the pump needs to build pressure and the extra alky injected after you get off the throttle as the lines depressurize. But it's not that big of a deal. Alky (and/or water) really opens the tuning window allowing you to run richer without breakup and leaner without detonation. win/win!

 

Looks like the alkycontrol kit will not be the best choice for my application. I'll Probally try to duplicate your setup (Haward), with a few small changes.

Is there a certain Surflow pump that is better than the others? or are all the ones offered by the popular vendors the same?

Also, is there a "base map" that comes with the FJO controller? Or is laptop required to set it up from the start?

And lastly will a 1200cc injector be enough?