I really hope you aren't basing your info off of what an SAFC tells you. Those things are over rated electronic junk.

 

it tells me a percentage reading based on voltage. if is only getting to 50%, accurate or not, i can say for certain that the AFM is not fully opening on a stock port NA.
there are people with large streetports running with a stock AFM fine.
true, it may become a restriction with a full bridgeport, but your original statement is not correct.

and why must you criticize and insult people to try to proove your points?
how about some fact-based comments for a change.

 

I was with you until you said this. You can't seriously believe what you just wrote, can you?

Regarding the AFM, my turbo-NA was only able to open it about 80% at full throttle, according to the S-AFC. And I was flowing much more air then any stock ported NA engine ever could dream of...

 

bull ****, open the hood take off the stock air box and rev her up. The flapper will open all the way. The stock afm is a restriction to anymotor stock port or not. But yea just go out there and you can watch the thing open, and open all the way. all of mine have.
Dom

 

That's fairly normal. As you rev the engine, it's under high load to get it's momentum going. So it sucks the AFM open. But as soon as the load levels, the AFM begins to close again.

 

they car is looking ok... we're working on it. it should be back up in like a week or 2. pretty soon we should start installing a megasquirt on my TII. so either way, it's going to be tested fairly soon.

 

that makes sense, thanks for clearing that up for me aaron

 

So after all this discussion... will a stock S4 ecu and AFM with a safc II be able to run a aux bp decently well. I realize that a standalone unit would be optimal, but I'm just curious.

 

Why would you want to be limited by the stock ECU yo? Since you'll be making your major power from 4k to 8-9k, it just won't let you unlease the BP's power. Get a used Haltech and tune it yourself for $600 bucks (I've even seen them cheaper.

Another option is megasquirt, build it and tune it yourself for $300. Check it out ;o.

 

The bridgeport is home my friends Time for pics and whatnot.

 

Well, I'm the one doing a lot of testing right now, but you have to include jsmcortina on the msefi forum... he's the one writing the code... I've mainly been testing on the 'scope and in tofuball's car... jsmcortina and I are trying to iron out the last of the trailing problems.... (still some misses at below 3 deg split)... I've written some code that might fix the problem... and jsmcortina said he might have some time this weekend to look at it as well...

I'm going to test my code fixes tomorrow to see if they do anything.

 

Yeah, the car is tofuball's (on this forum). Leading was working great before the accident... and even after the car started up fine.

The trailing is still having misses below 3 degrees of split... that's the hold up right now, and we're working to fix that.

 

Any info you can provide about this? I don't know much about standalones or tuning and such yet, but how is it going to be set up? I'm looking at wanting to go to ~9k rpms, is there going to be any issues with that and the ms spark?

 

Actually if you build it yourself it's only around $140 for the MS itself, and maybe another $20-30 for extra circuits/parts for things like BAC valve control and aux-ports/VDI (if you're NA) and for the VR sensor conditioner circuit. I have built a few pre-modded megasquirts for some people (sold for $320), but I don't have time to take on many orders for such things, and I recommend building yourself because you learn a lot more.

I'd recommend getting wideband though... it makes tuning a lot easier using the AFR tables in the megasquirt. Innovate has the LC-1 for $200 with a sensor.

 

I'm going to provide a very large setup document (hopefully easy to follow) at one point or another... There's a lot to go into in doing this ... the document could easily fill 4 or 5 pages full of info and pics if not more.

We've revved tofuball's car to 9K rpms no problem... we were hitting the limit of the stock FC ignitor above around 8000 in first gear (the FC leading ignitor does some weird stuff like changing the amt of dwell the ecu tells it to use... and it predicts when the next spark is going to come as well... in first gear the rate of change is too much for it so it starts reducing the dwell a LOT and giving misfires) but in 2nd gear and above, it was fine to 9000 where we stopped. This was on an NA engine, so you may need some kind of ignition amplifier if you're running a turbo this high.

if there are any more questions just IM me at hachiae86roku... I probably won't be checking the forum that much.

 

On mine it'll be for n/a. So would you suggest only going to 8k in 1st gear if those problems continue but 9k in other gears? Or is this problem not a big deal? And thanks for taking the time to answer my questions

 

first of all... you are a retard....
notice the thread clearly says NA... NOT turbo
and dont give me that bullshit about you have been building rotaries since you were in 4th grade... if you claim that... then i guess you havent improved at all since then
i am not having any problems with mine either
you know you are wrong about the stock afm - and now you are going to result to everything BUT somethign that has to do with AFM?
show me any prove that the stock afm is opened before redline on any stock NA cars

not to mention - you can use safc to determine how much the afm is open. take the voltage of one when it is opened all the way - and then compare the voltages... or is that too hard for the texas rednecks?

hey! why are you so quiet after aaron cake proved you wrong? too busy trying to get an abortion for your sister that you knocked up?

and yes - i just graduated from high school - your point? jealous that i graduated? i bet at my age, i have built more/fixed more cars/engines for people around me. i have been to the track more and won more free cases of oil than you.

so... before you try to act like another ignorant texas redneck on a non-truck forum... go ride your horse so you could go yeehaw or something....

 

ohhh no!!!! stereotypes.. You live in CA, does that make you a ***? ok then...

 

wow... way to post useful posts....

btw, he said he's been biulding rotaries ever since you were in 4th grade...

 

haha, i like this guy....

 

Dammit, dont get this thread closed