tuning by maf voltage is lame

2292 Views 28 Replies 9 Participants Last post by omgbossis21, May 24, 2006

omgbossis21

Discussion Starter · May 15, 2006

I need a standalone, any rec. on one thats semi-affordable and can be tuned by a person willing to learn? I dont some entirely complicated standalone that only the shop can tune and drain my pocket at the same time.... Emanage sucks b/c the injector harness dont work with our stupid ecus. Trying to tune by maf voltage when my injectors are 440cc , stock are 240cc (b/c i have a tib ecu) is freaking impossible. Second gear is doing 10.1 a/f and 3rd gear gets lean 14 and on. To compensate i raise/lower boost in gears with my boost controller, pretty sorry. I could swap my emanage for an safc but what good would that do when it has way less play in voltage... I suppose I'll continue to play with it, their has to be a happy medium at the cost of some power.

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Genericbob

· #2 · May 15, 2006

math is your friend mang. i had the same problems w/ the S-AFC. keep reseting your dern ecu.

440 - 240 = 200 / 240 = 5/6 = .83 or -83%
or
440 / 240 = 11/6 = 1.83 (same)

anybody else think math isn't my friend? (those calcs are probably horribly wrong) these darn 'auto learning ecu's aren't as great as they're cracked up to be.

omgbossis21

Discussion Starter · #3 · May 15, 2006

Well the emanage has the injection correction factor meaning it does that part of the math for you and automatically takes it out of the maf. Its all the rest of it thats causing a problem lol These injectors really are too big until i get a bigger turbo.....

japakos

· #4 · May 15, 2006

I'll buy your emanage if you like

rbuecker

· #5 · May 16, 2006

Originally posted by omgbossis21
[body]
I need a standalone, any rec. on one thats semi-affordable and can be tuned by a person willing to learn? I dont some entirely complicated standalone that only the shop can tune and drain my pocket at the same time.... Emanage sucks b/c the injector harness dont work with our stupid ecus. Trying to tune by maf voltage when my injectors are 440cc , stock are 240cc (b/c i have a tib ecu) is freaking impossible. Second gear is doing 10.1 a/f and 3rd gear gets lean 14 and on. To compensate i raise/lower boost in gears with my boost controller, pretty sorry. I could swap my emanage for an safc but what good would that do when it has way less play in voltage... I suppose I'll continue to play with it, their has to be a happy medium at the cost of some power.
[/body]

i'd say megasquirt, but my car isn't running on it yet. i'll cram one down your throat hopefully by the end of the week though.

omgbossis21

Discussion Starter · #6 · May 16, 2006

Originally posted by rbuecker
[body]

Originally posted by omgbossis21
[body]
I need a standalone, any rec. on one thats semi-affordable and can be tuned by a person willing to learn? I dont some entirely complicated standalone that only the shop can tune and drain my pocket at the same time.... Emanage sucks b/c the injector harness dont work with our stupid ecus. Trying to tune by maf voltage when my injectors are 440cc , stock are 240cc (b/c i have a tib ecu) is freaking impossible. Second gear is doing 10.1 a/f and 3rd gear gets lean 14 and on. To compensate i raise/lower boost in gears with my boost controller, pretty sorry. I could swap my emanage for an safc but what good would that do when it has way less play in voltage... I suppose I'll continue to play with it, their has to be a happy medium at the cost of some power.
[/body]

Click to expand...

i'd say megasquirt, but my car isn't running on it yet. i'll cram one down your throat hopefully by the end of the week though.
[/body]

lol yeah i may end up going megasquirt with u! I still owe you, havent forgot!

GLaccent01

· #7 · May 16, 2006

i want to see how much HP/TQ you guys can get with the lower compression and built engine with the megasquirt. If you guys manage to hit 200, then i won't even bother swapping motors. I'm saving up money right now and i'm trying to figure what i will eventually do. Hope you both have good results with megasquirt!

, good luck shawn and rob!

Mazdero

· #8 · May 16, 2006

Originally posted by omgbossis21
[body]

Originally posted by rbuecker
[body]

Originally posted by omgbossis21
[body]
I need a standalone, any rec. on one thats semi-affordable and can be tuned by a person willing to learn? I dont some entirely complicated standalone that only the shop can tune and drain my pocket at the same time.... Emanage sucks b/c the injector harness dont work with our stupid ecus. Trying to tune by maf voltage when my injectors are 440cc , stock are 240cc (b/c i have a tib ecu) is freaking impossible. Second gear is doing 10.1 a/f and 3rd gear gets lean 14 and on. To compensate i raise/lower boost in gears with my boost controller, pretty sorry. I could swap my emanage for an safc but what good would that do when it has way less play in voltage... I suppose I'll continue to play with it, their has to be a happy medium at the cost of some power.
[/body]

Click to expand...

i'd say megasquirt, but my car isn't running on it yet. i'll cram one down your throat hopefully by the end of the week though.
[/body]

Click to expand...

lol yeah i may end up going megasquirt with u! I still owe you, havent forgot!
[/body]

Megasquirt is going to be your cheapest and best option as far as stand alones go. I have one running on my Miata and it works very well, and is super easy to tune.

omgbossis21

Discussion Starter · #9 · May 16, 2006

I know theirs people on homemadeturbo.com running over 400hp on megasquirt....

rbuecker

· #10 · May 16, 2006

Originally posted by omgbossis21
[body]
I know theirs people on homemadeturbo.com running over 400hp on megasquirt....
[/body]

he means on the alpha though

xxl_05

· #11 · May 16, 2006

is this the case with the emanage ultimate?because i have that and have had it installed and then taken out beacuse my car blew a valve stem seal so its off the road..but my question is that will the injector add/trim function of the ultimate work on my injectors.i have the 330cc injectors from a jd2.really need to know before i pay for it getting installed.

GLaccent01

· #12 · May 16, 2006

go for a standalone. it seems our ECU really hates when we tune things. i'll go the same route as shawn and rob when i do decide to go turbo or N/A for that matter.

rbuecker

· #13 · May 16, 2006

just spoke with shawn

not to steal any thunder from him but it looks like our ecm monitors the injector voltage, so adding diodes causes it to run like garbage as well

wtf? :dunno:

i mention megasquirt standalone, but still piggy back because of a/c, gauges, etc. i need to hurry this thing up to post up some 411 for you guys. besides, 207$ shipped, can't beat price- and i had a tracking number within 10 minutes of ordering (diyautotune.com)

omgbossis21

Discussion Starter · #14 · May 16, 2006

Yeah i tried to install diodes to prevent backfeed to the ecu from the injection harness, thought it was a sure thing. After i installed the diodes the car wouldnt start, it would seem that the ecu monitors the voltage and when no voltage is returned it no longer does anything =-( I twisted the diode ends togother with the wires soldered to em to start the car and tried the injection harness after that. the injection harness worked better, not nowhere near efficient. It can be fixed and i think i could pull it off but its not worh my time IMO. Yes this will be the case with the gold as it intercepts the signal and wont have feedback, so it will be a no-go. Im not going to mess with it anymore. If your ecu is an older one , like 01-prior it is going to have this problem. Newer ones are supposed to work from what i understand (guys on rdtib have it working on new tibs). I've got some other ideas for hacking this emanage to make tuning much easier, I'll play with it if i have time. I have no doubt about the megasquirt capabilities but i have doubt about it working on our ignition without alot of replacement parts, i havent done my research so i may just be talking out of my a$$ though. I want a bigger turbo before anything LOL

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japakos

· #15 · May 16, 2006

I still insist.. I want to buy your emanage

omgbossis21

Discussion Starter · #16 · May 16, 2006

I will keep that in mind jap, let me look around for something else in the meantime =-)

rbuecker

· #17 · May 16, 2006

Originally posted by japakos
[body]
I still insist.. I want to buy your emanage
[/body]

i could send the 440cc injectors along with mine

Genericbob

· #18 · May 16, 2006

got me worried mang. hope you haven't hit a wall. the ecu is definately a big problem though. who thought auto-learning would be bad? now may be the time to see if we can get shark racing or kspec to release a programmable ecu (similar to the AEM stand alone units). or someone on ebay was selling a drop in ecu, which would involve soldering but maybe he would be willing to do custom tunes or we could bribe him for some more info.

the one good thing i liked about the S-AFCII was the interface. however, as far as options it did leave a lot to be desired. after i had redid my turbo setup i plugged what i thought was a 3bar map sensor into line 2 input of the SAFC to monitor voltage. i found out it was a 1.5bar map sensor but i believe the hyundai ecu would auto learn for a map sensor.

rab and i had also put in a switch to cut memory power to the ecu, so when you turn the car off, it was lose any memory. one downside was when you turned it back on, the car would take a few minutes to get a base tune. but the alterations made using the SAFC always lasted. if i did not use it, the computer would slowly tune out the adjustments, so i could make adjustments again (for example, if my adjustment was -12% at 2800rpm, it would adjust and i would have to adjust it to 0% to feel the same amount of power etc) sorry confusing example.

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japakos

· #19 · May 16, 2006

rbuecker make an offer to me. I don't want the injectors for now I think the betas will keep up with 7-8psi. Make an offer. I don't try to hack the thread Shawn, apologies for this :surprised:

Ant

· #20 · May 16, 2006

www.SDSefi.com this is what I have and I have seen others with wolf. Don't know if you want this but FYI. Goodluck!

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