fuel management
08-05-2002, 12:37 AM
#1
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Join Date: Jul 2002
Posts: 563
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:
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:
08-05-2002, 03:46 AM
#3
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Join Date: May 2002
Location: Okinawa, Japan
Posts: 4,928
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:
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:
08-05-2002, 08:30 AM
#7
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Location: NJ
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Originally Posted by 13BAce' date='Aug 5 2002, 09:21 AM
[quote name='vosko' date='Aug 5 2002, 10:29 AM']you could try the greddy emanage
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
08-05-2002, 01:15 PM
#8
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Location: Bay Area, CA
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Originally Posted by vosko' date='Aug 5 2002, 11:30 AM
[quote name='13BAce' date='Aug 5 2002, 09:21 AM'][quote name='vosko' date='Aug 5 2002, 10:29 AM']you could try the greddy emanage
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.
08-05-2002, 04:27 PM
#10
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Join Date: Nov 2001
Location: Bay Area, CA
Posts: 7,316
Originally Posted by evilT2' date='Aug 5 2002, 05:38 PM
whos got a haltech and how much did you end up paying for the whole thing?