dastinker8

i know its not a huge deal with the looks.. i just cant decide on which package i wanna go with.. They all cost aout the same to make.

I would probably perfer to have some admins test or someone very knowledgable with there cars.

Why are they unreliable piles of ****?? Just to much spiking and unconstant pressure?
Any Detailed information on why theres are bad would help a bunch, not just ripping on them.. thanks.

I am going to be doing some field testing with my prototype here soon, ive already filled 1/2 the memory of the controller with algorithms and steps to get this thing smooth. Gonna do some tweaking while its actually in the field then it should be ready for review.

Tom-Guy

AVC-R are overly complex, but once you get them dialled in they work great... until the temperature changes 10-15 deg F and then you have to kick the damn things again.

Greddy Profec series are actually quite stupid... electronic two stage boost controllers, what's the point in that??, none of which ever work right and were plagued with inconsistent boost control and spike problems, except for the original and wildly successful Profec B which they replaced a year ago with the Profec B "spec II" which is a pile of crap. Let's not even get into the E-01 big LCD screened pimp shizzle boost spikefest.

HKS Rebic IV was a similar experience, I had it on and off my car, on and off GVR-4 #366/2000, and on and off a friend's Impulse RS in a matter of days due to annoyance value. Junk, inconsistent.

I haven't used anything else, have hopes for the Tullos unit, and for Blundar's vaporware AVR-powered unit, but if and when I recommend boost controllers it's pretty much (in no particular order) DIY MBC, TurboXS two stage, and whatever the damn thing all my Mitsu friends sport that looks like a cigarette lighter **** that you twist and is sub $100. All MBCs.

Good luck to you, there is NO REASON why this can't be done correctly with a microcontroller, but for some reason nobody can get it right. If you are an average intelligent guy, and spend an extra fourteen seconds beta testing it, you will be a millionaire by this time next year...

EH3

Best thing for you is to be able to create a good reliable product, packaging doesn't matter. If you have a product that performs well and beats the competitions price, you're name and reputation will follow. I would probably buy one after I've heard enough good reviews on it. Only hesitation would be that you are a new company, and there is no guarantee even with the warranty since your company might fold and a warranty wouldn't be worth crap then.

dastinker8

Alright thanks.. sounds like all of them are overly complex and not very accurate.
Im trying to make this very simple and easy to use.
Display will conist of the boost guage... Number display(psi,bar,hg selectable) and maybe a bar graph
then there will be up/down buttons to change the desired boost, thats about it.
Looks like the biggest issue is getting it to work consistantly and accurately, which i will be spending lots of time testing.

I think i will just put it in a small box, then later in the future get it to the different styles.

I am using temperature compensated sensors so i dont think ill have a problem with temps..
The valves im using are Industrial strength and are effecient down to the 0 degree C.

Other than that its just programming to get the controller to act right.

Any other questions concerns with electronic controllers that i need to know or should add or remove..
THanks
Brian

Tom-Guy

Nope, sounds good so far.

Keep it simple and modular for now... you can add on extra features in the future, for the people who insist on having a $$$ *****, and get a slice of that market too.

Just make sure it has half-assed baro (elevation!) and temp calibrations... nobody minds a psi or two variance since that's the best she'll do actuating a crude mechanical control valve like the modern wastegate.

dastinker8

yeah temps already done in the sensor, and im using absolute sensors so i have to read the baro at startup, only problem is if you first start your car then drive down or up a couple thousand feet you might need to restart the car or else you might be off a little.

Also what do you guys think about a SAFC.. similar to the apexi.. except completely hidden... no display.. maybe a couple leds.. It is programmed by a computer, and you can tune it with a computer. I am currently writing the software for it i will post up some pics of it to show you what i mean.. Instead of the 250 dollar apexi mine will be like 100 if that.
Thanks
Brian

Tom-Guy

Before you go quoting prices, have you ever manufactured your own electronics before?

Talk to badbiki of www.bikirom.com, he's a bright young ---- like yourself, but when he went to have his USB daughterboards mass produced... last minute parts selections, revisions, etc, bumped up the prices a bit. Not even mentioning the time to get a couple prototypes and thoroughly test them.

Best to set a target range until you know fer sure dude. $100-180 target, etc.

dastinker8

No trust me my prices are very close to what i would be able to sell for. I have been researching this for a while. I have taken apart alot of the name brand stuff and priced parts. There ---- is marked up over 200 percent for the actual components inside. This is why i have decided to try and step into this market. Usually a well layed out design and lots of research you dont have your price bumped UP when you mass produce.. Usually it goes down significantly. Granite your prolly right .. i was just giving a simple number that i approximated. I will def give me details when i get close to finish. Hopefully i can get the price down even from that, depending on quantity. I have like 4 projects going i will keep updating and trying to get responses.. i will post pictures of some software ive started stuff like that. Thanks for the feedback
Brian

dastinker8

Here is the basic software for the SAFC im building. Its not done yet..

Eventually i will be able to have an autotune... Racemode.. and citymode... to optimize gas miled to how you drive.

The afc hardware will be just a box with some leds so it can be hidden.. and you use a computer to program the a/f, using this software. Hardware will have 0-1v outupt also and will have wideband input to help adjust.
Idea is once you program it you dont have to see it again.. maybe just have any a/f gauge to display.. or use the computer if you want. The hardware will be able to work with the boost gauge/controller also, might even make the boost adjustable through the software, just ideas i havent finished yet tho.
I want this afc to be able to do map and maf.. and sensor up to 12v... you tell it what it is in the software and and then the software controls it.
What do you guys think of that ?

bumblezc

Looks nice, but my question is why? Are you going to charge money for the SAFC program and harware. If so, one probably would lean toward UberData, Chrome or Turboedit being as it will beable to adjust more finely, comensate for timing and add many other features.

It's neast to see someone playing with ideas like this though. Good work.

Another Question: Is your Boost Controller going to be Open or Closed loop. Is it going to be tuneable by the user other then boost level and gain?