so heres what ive got so far:

installing an hks t04 kit, ive got a straight 2.5" pipe with rb catback, a profec-a for the turbo, and a fuel cut defender. no emissions.



how well is that factory ecu going to be able to compensate for this stuff? im not planning on running boost any higher than 10 or so for fear of leaning out. id like to get something like a haltech but thats really not in the budget right now.

do any of you have any experience with the apexi afc? how much boost can i safely run with the factory fuel pump and injectors, and if i choose to upgrade them later will the afc still be able to make use of them? :unsure:

I think I remember hearing the S AFC can run up to 720 cc/min injectors. https://www.nopistons.com/forums/pub...DIR#>/wink.png I'd try and work a Haltech into the budget. Plus you should pick up larger injectors and a good fuel pump.

What type of T-04 turbine are you putting on? Either way, you will need to get some type of fuel/ignition management. The stock ECU will have timing for a stock car. Since you're running more air into the engine, you'll need to retard the ignition(both leading and trailing).



Also, an Apexi S-AFC can control INJECTOR PERCENTAGE, but NOT actual injectors i.e. you throw in 720cc injectors in and the S-AFC won't care. It only knows to add/subtract X amount of fuel at this RPM. The problem with this is that 550 cc and 720cc injectors are DIFFERENT. If you load a 550cc injector with 50% injector duty...it will act like a 720cc injector at only 34% injector duty...but as the percentages get higher, the ECU won't know that there is 180cc difference per rotor. It just knows to add X amount of fuel to a 550cc injector, not a 720cc injector :(



Do the right thing and invest in a Haltec. :bigok:

A SAFC wouldn't be ideal, but with 4 720's you should get enough fuel.

you could try the greddy emanage

Yeah, that's the ticket.

Yeah, that's the ticket.[/quote]

i'm thinking about picking one of those up for my TII and putting the super fuel system but right now its point less running the stock turbo LOL

Yeah, that's the ticket.[/quote]

i'm thinking about picking one of those up for my TII and putting the super fuel system but right now its point less running the stock turbo LOL[/quote]

Get an Apex ITC and advance the timing 20 degrees. https://www.nopistons.com/forums/pub...>/rolleyes.gif

whos got a haltech and how much did you end up paying for the whole thing?

You can get everything you'll need for $1200-1300, but you'll need to install it, as well as tune it.

Yeah, that's the ticket.[/quote]

i'm thinking about picking one of those up for my TII and putting the super fuel system but right now its point less running the stock turbo LOL[/quote]

Get an Apex ITC and advance the timing 20 degrees. https://www.nopistons.com/forums/pub...>/rolleyes.gif[/quote]

sweet, actually i was advised to retard my base timing a little if i'm gonna run 15psi on the reprogrammed ecu https://www.nopistons.com/forums/pub...IR#>/smile.png

You can get everything you'll need for $1200-1300, but you'll need to install it, as well as tune it.[/quote]

I bought mine from RX7.com with the terminated hardness. Prices are on their website. I think it was $1300. They threw in a Base RX7 map, but it was for SHI*T. I ended up getting a couple of maps from other people and using them as BASE maps to get mine running.



I like all the features the Haltech offers. My motor is a N/A but now I have an easy option to go with a Turbo JSpec motor.



The reason I did the ECU swap was I did a motor swap and the factory harness was way to brittle to try to make the Factory ECU work.

You can get everything you'll need for $1200-1300, but you'll need to install it, as well as tune it.[/quote]

I bought mine from RX7.com with the terminated hardness. Prices are on their website. I think it was $1300. They threw in a Base RX7 map, but it was for SHI*T. I ended up getting a couple of maps from other people and using them as BASE maps to get mine running.



I like all the features the Haltech offers. My motor is a N/A but now I have an easy option to go with a Turbo JSpec motor.



The reason I did the ECU swap was I did a motor swap and the factory harness was way to brittle to try to make the Factory ECU work.[/quote]

I thought about going with a standalone on the 91 coupe to "prepare" me for my next setup. If I go with a Haltech maybe I'll steal a map from you. https://www.nopistons.com/forums/pub...>/rolleyes.gif

Yeah, that's the ticket.[/quote]

i'm thinking about picking one of those up for my TII and putting the super fuel system but right now its point less running the stock turbo LOL[/quote]

Get an Apex ITC and advance the timing 20 degrees. https://www.nopistons.com/forums/pub...>/rolleyes.gif[/quote]

sweet, actually i was advised to retard my base timing a little if i'm gonna run 15psi on the reprogrammed ecu https://www.nopistons.com/forums/pub...IR#>/smile.png[/quote]

That would probably be better than a 20 degree advance. https://www.nopistons.com/forums/pub...DIR#>/wink.png

Yeah, that's the ticket.[/quote]

i'm thinking about picking one of those up for my TII and putting the super fuel system but right now its point less running the stock turbo LOL[/quote]

Get an Apex ITC and advance the timing 20 degrees. https://www.nopistons.com/forums/pub...>/rolleyes.gif[/quote]

sweet, actually i was advised to retard my base timing a little if i'm gonna run 15psi on the reprogrammed ecu https://www.nopistons.com/forums/pub...IR#>/smile.png[/quote]

That would probably be better than a 20 degree advance. https://www.nopistons.com/forums/pub...DIR#>/wink.png[/quote]

slightly :unsure:

No way! 20* advance on the stock fuel system with 20 psi of boost https://www.nopistons.com/forums/pub...DIR#>/wink.png

i was hitting 15psi in 5th gear with the timing set wrong. who knows could have been at 20+ advance. this was the first blown coolant seal jspec . the new jspec i got runs damn good!

if i decide of using a haltech E6k on a 91 TII,what about the electronic oil meter. pump?

you can just unplug it and run premix

well that sounds like a total pain in the ass. but then again, what isnt with these horrible things?

ah with the premix do you just run 2 cycle oil in there? how much?

Can't you swap the electronic pump for a Series 4 type?



Maybe this requires a front cover swap or something ugly?

yea, you have to replace the front cover for the mechanical onr to operate

i would just premix its better for the engine anyway

Yeah, a front cover swap would work, but I figured out how to put a S4 oil metering pump on a S5 front cover without so much work.

Yeah, you don't get all of those ugly carbon deposits inside the engine.

how much oil do you put in the tank, whats the ratio?

only reason i haven't considered this is becuz it dirties the fule filter and injectors faster, or so i've heard. What do the big boys do, like Rx7.com race car, or maybe even Vosko https://www.nopistons.com/forums/pub...R#>/unsure.png do, do they run premix or what>

The general rule of thumb is 1 oz. 2 cycle oil per gallon of gas.

Everybody premixes. crispeed from the other forum premixes...end of story. https://www.nopistons.com/forums/pub...#>/biggrin.png

Everybody premixes. crispeed from the other forum premixes...end of story. https://www.nopistons.com/forums/pub...#>/biggrin.png[/quote]

there is zero downside to premixing besides you have to put 2 cycle oil in the tank when you get gas. if you can figure out how to drive you should be able to put premix in your tank https://www.nopistons.com/forums/pub...IR#>/smile.png

Everybody premixes. crispeed from the other forum premixes...end of story. https://www.nopistons.com/forums/pub...#>/biggrin.png[/quote]

there is zero downside to premixing besides you have to put 2 cycle oil in the tank when you get gas. if you can figure out how to drive you should be able to put premix in your tank https://www.nopistons.com/forums/pub...IR#>/smile.png[/quote]

Yeah, everybody always whines about it, but it only takes me an extra minute or two for each fillup.

Everybody premixes. crispeed from the other forum premixes...end of story. https://www.nopistons.com/forums/pub...#>/biggrin.png[/quote]

there is zero downside to premixing besides you have to put 2 cycle oil in the tank when you get gas. if you can figure out how to drive you should be able to put premix in your tank https://www.nopistons.com/forums/pub...IR#>/smile.png[/quote]

Yeah, everybody always whines about it, but it only takes me an extra minute or two for each fillup.[/quote]

I might do it when i my new engine then.

Everybody premixes. crispeed from the other forum premixes...end of story. https://www.nopistons.com/forums/pub...#>/biggrin.png[/quote]

there is zero downside to premixing besides you have to put 2 cycle oil in the tank when you get gas. if you can figure out how to drive you should be able to put premix in your tank https://www.nopistons.com/forums/pub...IR#>/smile.png[/quote]

Yeah, everybody always whines about it, but it only takes me an extra minute or two for each fillup.[/quote]

I might do it when i my new engine then.[/quote]

You'll be glad you did. I've been premixing both with and without the stock oil injection system for over 4 years, and every motor I did it to was really good. Once I get my 91 coupe here I'm going to start premixing.