FCD kit info!!

[kwiktsi]

For those interested, I am now taking orders for the FCD kit. This will help take the edge off the part throttle issues and also push the "fuel cut" (what it has become commonly known as) threshold past where any of us will ever see it again anytime soon . I have only cut ONCE with it and that was at 21 psi on a 65 degree day!!!

The price will be $60 shipped- you can get it here- www.joepmbc.com/mazdaspeed.htm
I am going to be building these as I get the orders, due to not knowing how many I am going to go through and I can't afford to front the $$$ for 100 of them and never sell them . So expect about a week and a half max turnaround.

PLEASE NOTE- This kit will allow you to run enough boost to blow your motor- PLEASE do not think that just because you *can* run xx psi means that you *CAN* run xx psi!!!

Also, the FCD utilizes a boost switch to activate it which is adjustable. It should be good where it is set, but you may notice that if you go WOT in say 4th gear at 2000 rpms and slowly lug it through the powerband (I doubt anyone here does, but just letting you know ), it will lean out when hits the preset psi and the switch kicks in, or some cars may feel a quick, slight stumble when it kicks in at higher RPM's- this is normal and you can adjust it to raise the psi at which it kicks in to help smooth it out- I can not preset them to work perfectly for every car (come in at the exact time your specefic car would need it). I know that we are all car guys here and if there is a screw, we will turn it but do not mess with it unless you absolutely have to though. If you go too high, you will fuel cut before the switch kicks in .

Lastly- I cannot supply hose or fittings to splice the FCD in with this kit due to everyones instal being slightly different and tapping in wherever it is convenient for them and needing various lengths depending on where you mount it- you can need anywhere from 2" to 6' .. I give you the basics- zip ties, the switch with about 1' of wire and some connectors along with instructions on which wires to splice it to.. You are responsible for being able to take that info and install it. I will offer advice on installing it, but due to the nature of the product, you really should have some tuning experience- not because of the product, but because of what it will allow you to do.

That's about it. enjoy- but be careful- I don't want a whole bunch of "I just blew my motor" threads to pop up!!! There is making boost and there is tuning to handle the boost you make, please be responsible and choose the latter .

Thanks.
Joe

 

[dominoy2k1]

you think us boosted mp3 will benefit from the kit?

 

[kwiktsi]

you think us boosted mp3 will benefit from the kit?

I honestly don't know. I know it will help pull the MAF readings back a touch through the whole RPM range (prior to the 4500 switch over to open loop). Unless, like Perf works, you are having a cut problem due to too much airflow though, I would say probably not worth it. The cut issue was the main reason for this..
Joe

 

[jonnydoe48]

joe you doing any group buys on your mbc?

 

[kwiktsi]

joe you doing any group buys on your mbc?

I already had one here a couple months back.. There are currently no others that I am aware of. I will be offering "package" discounts for all 3 produts or any combo of 2, but no sales as of right now on the MBC's.
Joe

 

[jonnydoe48]

hehe k thanks anyway.

 

[Maestrokneer]

Hey Joe,

I'm a little unclear as to what exactly the FCD does. Now that it's been made clear that the "fuel cut" is based more on voltage rather than psi, what and how does this kit "defend" against it?

Also, if I'm not planning on running more than 10psi boost, is this mod even recommended? Thanks.

 

[skilletrx]

newbie questionz

hey what exactly is a fuel cut?? and also, how do u determine if u have boost-lag, and what can be done to help it

 

[kwiktsi]

Hey Joe,

I'm a little unclear as to what exactly the FCD does. Now that it's been made clear that the "fuel cut" is based more on voltage rather than psi, what and how does this kit "defend" against it?

Also, if I'm not planning on running more than 10psi boost, is this mod even recommended? Thanks.

What perfworks was trying to say is there is no "boost" cut- meaning that the car does not cut fuel due to boost pressure. What happens is the MAF signal/voltage exceeds a certain point and wham- it cuts fuel for a sec- feels like a harsh stumble like someone turned it off and on real quick. This unit drops the voltage while under boost so that it will not hit the "limit" voltage.

As for your situation where you are not running more than 10 psi- it is borderline- you may not ever "fuel" cut warm, but once the temp drops, you may. This is because when the air is colder and denser, the MAF "sees" more air at the same CFM and thus the signal is higher. It is a toss-up for your situation . This is geared more for those who want to keep tuning their cars beyond the "limits", not for just anyone to install and try to run 15 psi .
Joe

 

[kwiktsi]

Re: newbie questionz

hey what exactly is a fuel cut?? and also, how do u determine if u have boost-lag, and what can be done to help it

See above regarding fuel cut.

Lag? Are you talking about turbo lag? Lag is the "dead" time before the turbo spools and is a normal characteristic of all turbo cars. Turbo size, exhaust flow, motor displacement, wastegate type and boost controller type all play a role in how long or short the lag is. My MSP boosts very quick in first gear (full boost by 3500 or so). My Talon drag car doesn't start to pull until 5200 .
Joe

 

[Turbo Matty P]

Hey Joe, Whats wronmg with "I blew up my motor" threads??!! Count me in (once I know whats going on). MAzda said they're getting the regional manager to come down and "look at my car"!

 

[kwiktsi]

Hey Joe, Whats wronmg with "I blew up my motor" threads??!! Count me in (once I know whats going on). MAzda said they're getting the regional manager to come down and "look at my car"!

Haha- I won't sell you one- you managed to blow up even with fuel cut ... You are one dangerous guy lol...

Seriously, just let me know when. Also, good luck with the car. I hope they help you- I saw what you said about getting a lawyer. Unfortunately, you did it- it wasn't a flaw. As long as they don't pick up on that, you're set .
Joe

 

[Turbo Matty P]

well, I want them to explain how coolant got into my #2 combustion chamber. Then I want them to explain how said coolant was my fault. Once they do that and convince me of it I'll pay the tab. Until that time I'm enjoying a nice 3.8super-regal supplied by my new boss!

 

[kwiktsi]

well, I want them to explain how coolant got into my #2 combustion chamber. Then I want them to explain how said coolant was my fault. Once they do that and convince me of it I'll pay the tab. Until that time I'm enjoying a nice 3.8super-regal supplied by my new boss!

I can explain it if they can't .. Detonation popped your head gasket. A continued running blew it out completely and suck water from a coolant passage to the cylinder . As long as they don't know that, you'll be safe.. You can fool the dealer, but you can't fool someone who has done the same thing on more than one occassion ..

How do you like the Regal? Is it pretty ballsy?
Joe

 

[MazdaspeedZOOM]

Joe- Will the FCD help to reduce the fuel cut associated with the install of a CAI. I've heard a couple people say that with the injen for instance they hit the fuel cut a lot sooner and on lower boost due to the air being more dense with a CAI. I hope you kinda understand what I'm trying to ask, I'm not always certain I'm using the best tech mumbo jumbo. Thanks in advance, I've been kinda bugging you a lot lately between on the boards and your PM's, don't kill me please?

P.S. I ordered my FCD tonight at about 2:00am here and I'm already excited about installing it and feeling a smoother better running MSP.

 

[Turbo Matty P]

Joe, what caused my detonation? They can test my gas to verify it's 93 octane. If for some reason it's not then I'll simply have to go to the gas station and take it up with them. Funny note though: the same day a kid came in to pick up his corvette from being tuned then dyno'd. The boss said, " You're only running 89 octane." The kid says "no way, I'm paranoid and ALWAYS run 93 or better" Apparently this guy has some way of testing gasoline. I should've thought to have him do this while he still had the car!

 

[Turbo Matty P]

oh yeah, the regal isn't so much ballsy as it is blistering! From a 20mph roll that thing will fly. I punched it @20 and before I knew it I was running 70mph. It was much faster than I thought an old ladies car should be. Much faster than the crown vics and caprices......sadly, much much faster than my MSP.

 

[kwiktsi]

Joe- Will the FCD help to reduce the fuel cut associated with the install of a CAI. I've heard a couple people say that with the injen for instance they hit the fuel cut a lot sooner and on lower boost due to the air being more dense with a CAI. I hope you kinda understand what I'm trying to ask, I'm not always certain I'm using the best tech mumbo jumbo. Thanks in advance, I've been kinda bugging you a lot lately between on the boards and your PM's, don't kill me please?

P.S. I ordered my FCD tonight at about 2:00am here and I'm already excited about installing it and feeling a smoother better running MSP.

Heheh- you're not bugging me . I just had to turn my IM off so I can get some work done- I continually get IM's during the day and I feel bad if I don't answer them, so I had to just turn it off for now. I have to get caught up on some work .

Anyway, yes, this will work. It helps raise the airflow related fuel cut to a point where you will pnever hit it .
Joe

 

[kwiktsi]

Joe, what caused my detonation? They can test my gas to verify it's 93 octane. If for some reason it's not then I'll simply have to go to the gas station and take it up with them. Funny note though: the same day a kid came in to pick up his corvette from being tuned then dyno'd. The boss said, " You're only running 89 octane." The kid says "no way, I'm paranoid and ALWAYS run 93 or better" Apparently this guy has some way of testing gasoline. I should've thought to have him do this while he still had the car!

Boost caused your detonation. You had been driving with no gauge for how long? Trust me- the is NO "10 PSI" LIMITER- there is an airflow based cut that will occur at various boost levels based on airflow and air temp. RPM and load play a role in that somewhere too, just haven't determined how much yet. If you were driving around and hitting fuel cut to save you- you were over boosting- bottom line. It is 100% possible that started to burn your headgasket and you finished it off on the dyno.
Joe
PS- I don't work for Mazda, so I am not getting your case about it- just letting you know so it doesn't happen again .

 

[Turbo Matty P]

cool, I knew the headgasket was my problem. I'm just curious as to what angle the dealership is going to throw at me. They've avoided my phone calls all day. I'm going after the dealership general manager tomorrow to find out why my car's been there for 2 days without anyone looking at my car or offering me a loaner. Time to bust some heads. I'm 6'2" 250lbs. My wife says she feels bad for them if I have to go down there!!!