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Old 04-20-2010, 05:42 PM   #1
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Default Good ebay fmu to buy?

Looking for a good fmu for around 7-8 psi.
Any ebay suggestions?
Nothing to expensive, planning to upgrade to a megasquirt at some point in the future.
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Old 04-20-2010, 06:04 PM   #2
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hey noob sauce, post in the Meet and Greet, and say hi.


I will be the nicest reply your going to get now.
Just watch.



Don't be a douche, and at least get a BEGi FMU or equivelent, if you must have band-aids.

I have band-aids still, and so I know. I have a Mallory fuel system beside pump and it works, but I still need MS.

Do the smart thing tho, just save for MS, I didnt and now im regretting it. I still will get it but not as soon as I would have if I just focused on it.
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Old 04-20-2010, 06:09 PM   #3
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A used Begi AFPR is better than a new Ebay FMU. Be aware, there are fake BEGI AFPR's out there.
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Old 04-20-2010, 06:17 PM   #4
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10 to 1 ratio will keep you safe for a while.

Then when you are ready to do it right MS PNP
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Old 04-20-2010, 06:26 PM   #5
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Thanks for the replies guys, sadly before I started reading anything online I already went down the path of self destruction. I welcome it honestly as this is an entirely new learning experiance for me.

As for not wanting to spend a ton of cash, I have my reasons. For one im in college. Well this may make me look like a scrub, but not everyone is made/born into cash that can just go out and buy the best of everything. Trust me if I could I wouldent be posting questions as I have as I know the best way to get things done.

On this note, I wonder how well this would work
http://www.frsport.com/Megan-Racing-...e_p_12662.html
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Old 04-20-2010, 06:34 PM   #6
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Quote:
Originally Posted by Silkex25 View Post
On this note, I wonder how well this would work
http://www.frsport.com/Megan-Racing-...e_p_12662.html
Not at all for what you need to do.

If you do not understand the difference between a RRFPR and what you posted, you need to read more. You are over your head.
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Old 04-20-2010, 06:46 PM   #7
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Study more and you will make far fewer regrettable decisions. And welcome.
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Old 04-20-2010, 07:12 PM   #8
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Thats what im trying to find. Trust me I know the difr between the two. I called megan and thats what they suggested. I sorta realised that wouldent be that great, I mean i dont want that much fuel runing to my engine at idle.. lol.

I'm prolly going to go with an apexi afc neo. Unless someone can suggest a cheap megasquirt deal that can also controll the timing(which I beleive is a far bit more pricey) and on that note, Wouldent I aslo need a wideband sensor between the cat/downpipe? with a megasquirt that is.

Last edited by Silkex25; 04-20-2010 at 07:29 PM.
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Old 04-20-2010, 08:04 PM   #9
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Quote:
Originally Posted by Silkex25 View Post
Thats what im trying to find. Trust me I know the difr between the two. I called megan and thats what they suggested. I sorta realised that wouldent be that great, I mean i dont want that much fuel runing to my engine at idle.. lol.

I'm prolly going to go with an apexi afc neo. Unless someone can suggest a cheap megasquirt deal that can also controll the timing(which I beleive is a far bit more pricey) and on that note, Wouldent I aslo need a wideband sensor between the cat/downpipe? with a megasquirt that is.
I don't trust you due to posts like this ^. I'm going to break this down.

1. Braineack, myself, Wayne_Curr, and several other people on this board can build you a complete standalone megasquirt for about $100 dollars more than an AFC Neo, so it isn't *that* much more than wasting your money on an AFC.

2. I feel like I post this **** at least once a week, but I'm just going to crosspost from the last time I said this :

Quote:
Originally Posted by [email protected]
SAFCs are by far the most abominable way you could possibly control fuel in a car. Why? Because they also alter your timing. By lying to your car's ECU about airflow to make in inject more or less fuel, you are also forcing it into a diffent timing cell. Now this may or may not be a big deal depending on how much boost you are running, the size of your injectors, how much static timing you are running ,etc.etc.etc., but the fact that YOU DONT KNOW what your motor is doing is just a huge turn off to me. At least with other bandaid approaches like the bipes/RRFPR you know which direction your timing is going to go (although to be fair, by retarding your timing by lying about the CAS signal, you are also changing the degree at which fuel is injected, its a two way street).

Also, they are unaware of actual engine load because they base their adjustment off of throttle position (at least in stock form, I know you can use a motorola map sensor). This might work fine on a naturally aspirated car, but in a turbocharged car, throttle position isn't the best indicator of load. Think about driving a turbocharged car down the freeway. If you were to go up a hill, but still keep throttle fairly constant, there is a good chance (depending on RPM/incline/etc) that you could get into boost, but the AFC wouldn't compensate properly because you didn't actually move the throttle.
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Old 04-20-2010, 08:13 PM   #10
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Ok bitches, its threadjack time

I am going to be running e85 and larger injectors, but probably not large enough to reach my goal without bumping up the pressure at least a little bit. (considering the id1000's but due to having to hack the wiring might go with DW 600's and bump up the pressure to reach 350whp which shouldn't take too much).

So with that in mind:

WHAT ADJUSTABLE PRESSURE REGULATOR CAN I GET ON A BUDGET??

(this is kinda helping the OP too)

PS: yes I know what the GOOD (read: expensive) ones are. But what about the cheaper ones that will "get er done" just as well?
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Old 04-20-2010, 08:23 PM   #11
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To the OP:

I realize that I probably come off like a dick. I'm not . I just want to save you from doing things you will only regret later.

Welcome to the site btw.
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Old 04-20-2010, 08:29 PM   #12
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Quote:
Originally Posted by Jeff_Ciesielski View Post
I don't trust you due to posts like this ^. I'm going to break this down.

1. Braineack, myself, Wayne_Curr, and several other people on this board can build you a complete standalone megasquirt for about $100 dollars more than an AFC Neo, so it isn't *that* much more than wasting your money on an AFC.

2. I feel like I post this **** at least once a week, but I'm just going to crosspost from the last time I said this :
Cheap? maybe if the megasquirt could do all that by just buying it and thats it, but im fairly certain for some of the functions of megasquirt to work you also need a wideband which for the total setup is not cheap at all. Now I never used megasquirt so I could be wrong but from doing my own research I am fairly certain I am correct.

Now with the comment about the afc, first of all the AFC is an idea - not something im set in stone on doing. I seen the neo work on cars and I also hear alot of gearheads refering to them as a decent goto fix over an RRPFR. Now with all that stated, someone on this forum actually offered me a used begi RRFPR which I am honestly considering. I dont have much money to work with here and im just looking for a temp fix for all honesty.
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Old 04-20-2010, 08:52 PM   #13
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Quote:
Originally Posted by Silkex25 View Post
Cheap? maybe if the megasquirt could do all that by just buying it and thats it, but im fairly certain for some of the functions of megasquirt to work you also need a wideband which for the total setup is not cheap at all. Now I never used megasquirt so I could be wrong but from doing my own research I am fairly certain I am correct.
You aren't.

On any aftermarket boosted car, you should be running a wideband, not doing so is like asking to blow your **** up. It is seriously probably the best diagnostic tool you will ever use on your car, and it is cheap. LC-1s can be had as low as $180.

I'm not saying a megasquirt setup isn't more expensive. It is (esp. when you count injectors). But when you consider that You are looking at about $300-400 more to do it right in one shot, vs the cost of replacing your motor -OR- paying twice for ****.....Doesn't that make sense?

Quote:
Now with the comment about the afc, first of all the AFC is an idea - not something im set in stone on doing. I seen the neo work on cars and I also hear alot of gearheads refering to them as a decent goto fix over an RRPFR. Now with all that stated, someone on this forum actually offered me a used begi RRFPR which I am honestly considering. I dont have much money to work with here and im just looking for a temp fix for all honesty.
Then save up and do it right the first time.
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Old 04-20-2010, 08:57 PM   #14
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Your first mod should be a DD.
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Old 04-20-2010, 09:04 PM   #15
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Quote:
Originally Posted by Silkex25 View Post
As for not wanting to spend a ton of cash, I have my reasons. For one im in college. Well this may make me look like a scrub, but not everyone is made/born into cash that can just go out and buy the best of everything. Trust me if I could I wouldent be posting questions as I have as I know the best way to get things done.
First, there are a good amount of people on this forum who are in college and broke, so that is not a reason to try to cheap out and most likely blow your motor.

Second, If you cannot afford a MS and a LC-1 then you can not afford to boost your car.

Since your in college and on a budget the first thing you should do is get the MS and LC-1. Then once you have that installed and have learned how to tune, then and only then should you move on to adding a turbo.
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Old 04-20-2010, 09:22 PM   #16
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You're going to need a wideband to tune any sort of fuel management whether its the RRFPR or electronic.
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Old 04-20-2010, 09:22 PM   #17
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Quote:
Originally Posted by shuiend View Post
First, there are a good amount of people on this forum who are in college and broke, so that is not a reason to try to cheap out and most likely blow your motor.

Second, If you cannot afford a MS and a LC-1 then you can not afford to boost your car.

Since your in college and on a budget the first thing you should do is get the MS and LC-1. Then once you have that installed and have learned how to tune, then and only then should you move on to adding a turbo.
+ 1 i had my car widebanded and squirted about 3 months before my turbo. I sure am happy i did. Then, i just clicked the autotune button and had the AFR's i wanted.

Also, cheap wideband? Although i only have 80 into mine, you could do one for 120.

Step one: Buy that.
http://www.14point7.com/Widebands/NAW_7S/NAW_7S.htm

Step 2. Go to a pic n pull and find a wrecked newer VW with a five wire o2 sensor. I paid 10 bucks for mine.

Or buy a LC1.

Seriously. I have a SAFC laying here though, 50 bucks and its yours. I have been wanting to unload it on someone.

Edit: post your mods, i hope to god that turbo isn't on there yet.
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Old 04-20-2010, 09:52 PM   #18
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Quote:
Originally Posted by 18psi View Post
Ok bitches, its threadjack time

I am going to be running e85 and larger injectors, but probably not large enough to reach my goal without bumping up the pressure at least a little bit. (considering the id1000's but due to having to hack the wiring might go with DW 600's and bump up the pressure to reach 350whp which shouldn't take too much).

So with that in mind:

WHAT ADJUSTABLE PRESSURE REGULATOR CAN I GET ON A BUDGET??

(this is kinda helping the OP too)

PS: yes I know what the GOOD (read: expensive) ones are. But what about the cheaper ones that will "get er done" just as well?
awesome for its price:
http://www.summitracing.com/parts/MAA-4305M/
http://www.summitracing.com/parts/AEI-13109/?rtype=10
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Old 04-20-2010, 11:22 PM   #19
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Nah I actually been slowly working on my tranny. Bought the flying miata Clutch+10.3pound flywheel deal from them. The turbo itself is a t25/t28

Turbo Specs

Oil cooled and water cooled

Compressor Specs :
1.70" Compressor Inlet
1.685" or 42.81mm inducer
2.362" or 60.00mm Major
Compressor .80 A.R.
M24 T2 Compressor Housing

Turbine Specs :
1.850" Exducer
Turbine .86 A.R.
2.090" or 53.10mm Major
1.820" or 46.25mm Minor

Aside from that, I been getting the peices I need to actually do the install and the fmu/megasquirt is up on my list and is pretty much the last thing I need to actually install the turbo.

Not only that but I have been doing major work elswhere on the car, new shocks, new paint job, new brakes and the autokonexion widebody kit which I also molded and left it as primer over winter to test for cracks so I can paint this summer. I got some more bodywork to do as well as finish with the tranny + turbo.
Thats just some of the larger things I have done.

At some point I plan on throwing in a brand new motor, and that would also be the point where I would do a more exspensive turbo setup.
I have plans for the car, its been one of my bigest dreams I wanted to do ever since I was about 16 years old.
I'll be the first to admit this is the first time I ever done anything with a turbo, that should be pretty obvious. Ive researched day and night, hung out with mechanics and believe I have a pretty good idea about the setup. Do I have the experiance that persay someone does thats been doing it for over 10 years? No I dont, but ill learn.. im a tech junky and I love tinkering with things.

Last edited by Silkex25; 04-20-2010 at 11:41 PM.
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Old 04-20-2010, 11:33 PM   #20
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Quote:
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Thanx a bunch man
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