Hi guys i am thinking about getting a new EMS, and was wondering if anyone has any experience with it. I was looking at the F.A.S.T. XFI, a couple of my friends have them on the LS1's and GN, but dont' know anyone running a 4 banger on it. Any opinions??!?!?!

 

it is a great system, but if you already have a honda, why not crome or uber or hondata? there is no wiring to do. but thats just my oppinion. it is a complete stand alone like mo-tec and electromotive.

 

My issue is i am doing a 01 v6 to H22 swap, and wiring is a nightmare, for the same price as the AEM i can get the XFI and new main harness, which will make my life alot easier

 

Build a MegaSquirt. Same technology, only $200.

 

if thats the case then it will suit you well.

 

We've run the older F.A.S.T. systems on alot of our cars and they work really well. Was checking out the new XFI system it looks alot nicer.

 

You can't go fast with FAST. lol

 

IIRC megasquirt only has something like 10x10 maps, and even the expanded stuff isn't close to uberdata's/crome's maps & abilities.

Outside of wiring issues, I think you'll be happier with a honda-ecu standalone in the longrun. I'm sure there is someone around willing to help extensively with wiring for what $$ you'd otherwise be putting into another ems. There's also the fact that the funky timing needed for H22's would make tuning easier on honda-based stuff, since it's mostly all documented/dealt with already.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by HiProfile &raquo;</TD></TR><TR><TD CLASS="quote"> megasquirt only has something like 10x10 maps</TD></TR></TABLE>

this is something alot of people either don't know to look for or, just don't care. resolution.

 

I was reading up on their site. and have a couple questions



XXXRacing

What harness did you run? Universal with injector, and ignition? I was reading that you use the nitrous function to activate the Vtec, and have to use thier O2 sensor. I have a PLX, so is it basically trash now? Also i will be running a small shot of nitrous so is the vtec activation that i mentioned above the only way to do it or is there alternate methods?

 

We use an MSD RPM Activated Switch for Vtec (have heard that you can use the nitrous function but never tried it ourselves). You would use the O2 that comes with the F.A.S.T. The harness we used on the older boxes was an actual honda harness that was available from fast. The new F.a.s.t. box has alot of outputs available that you could use along with the nitrous functions.

 

Also the 2 stages of nitrous can be used to activate 2 stages on a quad stage boost controller instead of nitrous. I love my FAST, can easily drive big injectors and controll them well. Brian is right, I used a Msd RPM switch to activate my Vtec. It works well too.

 

hondata/Neptune &gt; F.A.S.T on a honda...

 

We also run the Fast system and use the nos stage one to activate our Vtec. Like stated above most setups I have seen use rpm activater switches for the vtec.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by liam821 &raquo;</TD></TR><TR><TD CLASS="quote">hondata/Neptune &gt; F.A.S.T on a honda...</TD></TR></TABLE>

You can say what you want. Last time I checked, 3 of the fastest street hondas have f.a.s.t. in them. The kid was asking about f.a.s.t. for his car, not neptune or hondata. But thanks for your useful input on the thread.

 

if i was doing a routine swap then maybe i would use hondata, but even then i probably would have gone with the AEM one at the very least.

I have was emailing Dave Henninger at FAST to get ideas on what to do. I think i am going to go with the fast system though, seems to be the best thing out there for me.

9sech22civic, XXXRacing when i get the system do you guys mind if i pick your brain while i set it up?

I am in the middle of building my garage (should be done this weekend) after that i am doing the swap, i need to call Dave at F.A.S.T to see what harnesses and stuff they recomend for the XFI. If you guys don't mind if i ask you about what tricks/methods you used to get the different functions to work (ie vtec, nos, etc) Let me know if you guys mind. Thanks again for your input

 

just curious, how much do fast systems go for new? i think brian and jason have both proved FAST can work

 

The cheapest i have found them is $1566, ECU with o2 sensor. Still need wiring harnes(s). Entire system is around $2K, not much more then the AEM but more versatile. Can basically take ecu and harness and connect it to a B16,18,20, h22 etc and tune it and your done, unlike the ems which you locked into the one motor. IF you decide to change projects and motors you not out the $$$$

 

Chrome/Uberdata/Honda and most OEM ECUs use a step function, whereby values are picked directly out of cells in the fuel and timing maps, and therefore need 16x16 resolution. MegaSquirt uses a linearly interpolated calculation and thus has infinately more resolution, with 1/4 the defined points, than other models.

But if you like F.A.S.T., that's cool. I have seen it used very effectively.

 

when i said more versatile i didn't mean in capabilities just in applications. You can basically use the same exact system on any motor, V8,V6, 4 banger saves money if you decide to change projects. I am not knocking on the other systems just in terms of what i am doing i think the FAST system suits me best.

 

Actually, I read in Hondata's literature that the honda ecu has something like 65,000 datapoints that it sees in the fuel and timing maps, with interpolation.

 

We use Fast on our shop race cars and have great luck with it. Very easy to use and never had a problem yet.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 2001accord &raquo;</TD></TR><TR><TD CLASS="quote">if i was doing a routine swap then maybe i would use hondata, but even then i probably would have gone with the AEM one at the very least.

I have was emailing Dave Henninger at FAST to get ideas on what to do. I think i am going to go with the fast system though, seems to be the best thing out there for me.

9sech22civic, XXXRacing when i get the system do you guys mind if i pick your brain while i set it up?

I am in the middle of building my garage (should be done this weekend) after that i am doing the swap, i need to call Dave at F.A.S.T to see what harnesses and stuff they recomend for the XFI. If you guys don't mind if i ask you about what tricks/methods you used to get the different functions to work (ie vtec, nos, etc) Let me know if you guys mind. Thanks again for your input

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no problem. Ask Dave if they have the digital display which shows, a/f, rpm's, tps %. and a couple of other things. This new one is supposed to be sick!

 

Thanks.............i left a message for him, and an email about getting in contact with me. I will try again later today to call him, if not i will wait til after the holiday. I will be sure to ask him and let you know what he says.

All the literature i read on it, and what i got from Jay Adams (sales rep there) this XFI is supposed to be their "state of the art" system. I pretty excited to get it and check out what it can do

 

I just talked to dave. he said the new system can monitor up to 14 functions at once. Can do tps%, egt, rpm, speed, O2, coolant temp, oil pressure, etc. Said it is alot more advanced then the previous system.

If anyone knows what the ignition wiring diagram for the H22 (2000) is or where to get it let me know. i need to know to tell dave to help me out with which harness they have to use. I know its distributor but for converting to Coil on plug they have different harnesses to use. So any info would be appreciated.