As complete as the drag kit is, I feel like I need more things to complete it. What do I do about fuel? Will the apexi-vafc do the job? What about the included vortec fmu? I think the stock boost on the kit is 7psi. What will I need to up the boost? Will a tial wategate upgrade do anything? I want to run maybe 8-9psi daily but not sure if I can if I don't take care of the fuel, I'd run too lean wouldn't I?
Ok I really need some help here! I've been calling a few shops around here and all of them have been telling me different thing! I need to know if somesort of fuel management as I raise boost. Will the Vortec FMU be suffient? If not I'm thinking of either the ERL-MF2, its a tuning option/upgrade for the f-max kit. Or the Greddy E-management. Both go for around $350. I'm not sure if either one will work with the Drag kit I'll be getting but I really hope so just so I don't have to pay the $1300 for the aem stand alone, which is one of the cheapest around.
Do you have an SH? I am too lazy to read if it is in your sig. Anyway, I've done 8-9psi daily on stock injectors with Vortech FMU with the 10:1 disc and cheap ass inline fuel pump. I've read as high as 11psi on stock injectors, but I don't reccomend anything above 80psi fuel for a stock fuel system. Sometimes, there is nothing we can do. I've gone as high as 120-130psi fuel at full boost, running the car as rich as possible for 9psi. I've even made a secondary regulator to hold the fuel pressure at boost to 100psi using a 12:1 FMU disc (I wanted the 100psi as soon as possible and not go any higher, a 12:1 disc shoots the fuel press past 120psi at 6-7psi).
Anyway, back to your question. I forgot what it was... E-manage with bigger injectors is what I'd like to do. FMU, good high pressure fuel pump is good and reliable, just glue all hoses to prevent accidents (just joking about the glue, but secure them well). My set-up consists of the stock pump, regulator, electronic map bypass, VAFC and 440 DSM injectors. I can duplicate my system for you, but if you want it right, Hondata and bigger injectors is the way.....
An important non fuel related item, MSDBTM for more than 7psi. I've run it at 0 retard at 9psi with the FMU and inline fuel pump. Now with the VAFC and injectors, the mid-range doesn't run as rich as the FMU with the 12:1 disc and I detected a very very slight knock at full throttle, low boost from 3000-3600rpm. I could have ignored it, but I love driving my car so much that I'd rather be safe.....
I only want to run 8psi no boost controller or anything, just a 8 pound spring on the tial wastegate. If I don't need larger injectors then would it be ok to depend on the vortec fmu and a apexi-vafc? Will that be sufficient?
Once I decied to boost higher I'll look for a stand alone and boost controller.
Yeah I do have a type sh is that going to be a problem?
I forgot about the boost question. Stick with the spring there. There are a variety of boost controllers to suit your needs, from extremely cheap (and reliable) to expensive and difficult. I finished making an electronic boost control, and on the work bench it is perfect, but I'll need to test it on my car. I did run it overnight to be sure it worked reliably, I just need to test it on the car....
The lighter spring will allow the WG to open quickly when a boost signal is applied. A spring MBC would keep the WG closed right until the desired pressure then blast it open, quicker spool-up and I haven't had a problem with mine. I can get you one for under $10 if you do get your turbo.... If the electronic one works fine, I can sell you one for @ $50...... I'll let you know how it works out on Thursday........
The FMU and inline fuel pump is good, I've used it most of last year, like 6months and a day. If you want the spring, at a no cost option, get it. For reasons I'll explain later, you'd want the lower spring rate.... Since SH, like schwett, you may want to keep the stock ecu. If you were in San Diego, I'd try to see if the atts can be retained without the ecu, you could be the guinnea pig, hahaha....
I have an extra solenoid. I can make you one, but I'll have to add it to your BILL..... I'll give you a call later, hehehe.... Hooters, here we come. If you can, I'd like to buy the rims from your friend for $700 or below. Can you take care of that??
Better yet, I'll trade him for the T3T4e turbo I have laying around, hehehe....
haha.....i dunno if hes sellin it anymore..but 700, ill try..and yes..hooters, here we come! o yea...my friend is throwin a greddy turbo kit on his Si, should i be worried??
Don't worry at all, get good tires. We'll take the turbo out and get you a bigger housing, at least find out what's on there. Top end madness, here we come!!!!
About doing a fuel system like mine, hold off and I may sell my VAFC.....and map bypass.....
I am going to test a black box on chamorro's car. It has a map bypass and a crude, but effective way to control the injectors (actually the map signals). If that works out (and maybe a Hondata without any box of any sort), then we can make injector upgrade kits for FI cars with stock ecus, how does that sound?
Originally posted by 00G The FMU and inline fuel pump is good, I've used it most of last year, like 6months and a day. If you want the spring, at a no cost option, get it. For reasons I'll explain later, you'd want the lower spring rate.... Since SH, like schwett, you may want to keep the stock ecu. If you were in San Diego, I'd try to see if the atts can be retained without the ecu, you could be the guinnea pig, hahaha....
hrm, how would this be possible? missing link? Someone convinced me that an ecu would be better, but i some how dont wanna loose my atts do ellaborate.
If the ATTS sends electronic signals to and from the ecu, it most likely can be fooled into thinking the engine is running normally. I only notice the map sensor wire going to/from the ecu to the ATTS ecu, but I haven't really looked at the rest of the wiring. Some have said there is an acceleration meter and/or torque sensor. I may read more about it, but don't hold your breath. I don't know anyone in the immediate area to fool with their car...
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