nopiston_racer

iTrader: (2)

all this talk about the centerplate and MS....i have some questions when it comes to this centerplate...what does it actually do and is it worth anything to me with a streetported engine.....also how well does the MS work with a boosted sp engine...will be it easier with MS or should i go with a Microtech or Haltech?

As for that 4 barrel throttle body from auto-nomics, would all i need for it to work is the TB, my select 4 injectors, ecu, wiring harness?......b/c if thats the case i think ill definately be purchasing that TB next month b/c i already have the racingbeat intake manifold

keep the information coming...im trying to search for all the info i can...but my time online is very scarce....thanks for all the info so far its great....later..parker

boriqua51371

im assuming you are running a blow through style. with the autonomics that would be fine as far as the ecu really is your preference i personally have the microtech but i went with the ida style throtle body. i talked to autonomics although he is very knowlegdeable he has no clue as far as rotary engines. now the injectors would be depending on what kind of power you want or are seeking as far as the harness the autonomics sell you everything you want as far as fitment well they are made for gm style cars. so fitment of it you would have to figure out , now when it comes to microtec , haltec , ect they are simple to put together the harness comes already set for our applications. the twm throttle body is also custom set up for our applications from www.rotaryshack.com so its a bolt on kind of set up. but its ultimately up to you. i personally recomend twm tb with the microtec lt8-s good set up somewhat economical and very much straight foward. also good for big horse power. i have a t-66 mp turbo hks manifold hks westegate 40mm and bov waiting on the ic ect. good luck with your set up. also rotaryshack gives you lots of tech support and i got everything from one shop.

jayroc

Those are interesting ideas, SparkienSuggah, but an injector directly on the housing (I assume you mean like the oil injectors?) wouldn't negate the need for sequential injection, assuming you want to use it.
Injecting directly into the spark plug hole won't work though, because by this time it's already well into the compression stage and ready to fire. I suppose you COULD inject it early in the compression stroke, but I don't know if the injector would appreciate being put under the higher heat and pressure conditions the rotor housing is under on this part of the engine, and it wouldn't mix well under those conditions anyway. The normal primaries never see this sort of abuse. It's not just about getting fuel into the engine, it's about getting a good mixture of fuel and air.

Sequential fire is simply not that useful as far as I'm concerned. At least, on rotaries. I'm not saying it has no benefit, I'm saying the cost outweighs it. If you already have a haltech then by all means, set it up for sequential, tell us about your setup. Then run it in batch mode and tell us about the differences. I would certainly be interested in hearing about it, seriously.

nopiston_racer if I were you, I would get the holley style TB and not use the center plate primaries. You will get a better A/F mixture anyway and 4 injectors should be plenty. If you want to go turbo, you should be able to find holley turbo hats pretty easy. Megasquirt will do turbo engines up to 20 or so lbs of boost. There are replacement MAP sensors which allow for more boost. There are two places to get Megasquirt parts:
www.glensgarage.com
www.diyautotune.com

Also:
http://www.twminduction.com/ThrottleBody/carb_vs_fi.pdf

jayroc

Yeah rotaryshack would also be a very good option. I never dealt with him, though he seems like a good guy to do business with.

I've never worked with haltech or microtech stuff.. The software that megasquirt uses is real easy to use though. I test drove the halwin software, or whatever it's called. It seems anti-intuitive. The bin layout is terrible, I think. Up until recently weren't they using a DOS based software? Lots of people use it successfully, so maybe it's just me...
Anyways, what does microtech use?

boriqua51371

check the website very helpfull click on any of the products and you can get the info. http://www.microtechefi.com/

soslowgtp

Direct Injection is a LOT different than normal Fuel Injection. Diesels have been using it forever, and some gas engines use it. It is more efficient and actually mixes better b/c of the high pressure that the fuel is under, the new solstice GXP uses it at around 1200 psi.... some Diesel engines run upwards of 3000-4000 psi through the injectors. you obviously don't use standard injectors, reliability isn't an issue since they are based off commercial diesel trucks that can go 1/2 a million miles before needed to be torn apart.... Direct injection would also cool the rotor. I think it would be a great thing for rotary engines, but it's expensive, and doing it yourself would be risky considering the amount of pressure involved.

jayroc

Looks nice, thx.
There are certainly a LOT of nice stand alone setups out there. Wish I had a haltech or microtech to mess around with.

jayroc

I have some experience building my own custom setup, but I am by no means knowledable about every FI setup.
Adapting this setup to a rotary could be a good idea. I've never heard of it being done, so who knows? Not something I wanna take on, though.
I didn't know this is what you were talking about SparkienSuggah so, my bad.

FB II

hmmmm... ok here goes..

the auto-nomics 4barrel FI setup is well suited to work on a rotary. he has multiple harnesses that can come with it preset... one is especially setup for the Mega Squirt. so if that is the ecu of choice then that particular tb setup would be easy as hell to get up and going.

microtech is cool, i like it's simplicity, but for everyday street driving we have seen some hicups. plus what is aggrivating is the fact that when you order it they come with a pre-set standard base map that you are forced to work with. i dunno about the newest lineup they have but normally on a microtech setup you can't just go thru and change maps. you are forced to get the hand controller for that and even then, they have to be maps that you have created thru the system at hand.

my personal favorite is the Haltech. and crazy enough... i like the old dos based setup. it's hard to get used to at first, but once you get the hang of how it all works you find that it's un believably easy to just go and adjust a certain range, even while driving. street tuning with it is of no real hassle. and the fact that you can get a base map from anyone (favorite tuner of choice) makes it that much better. everyone here uses haltech on their turbo rx7's.

ULTIMATELY tho if you are really looking for a good tuned setup... you need to get the standalone of which your local tuner does best.

SparkienSuggah

re: direct injection.
for the life of me, i cant find the supplier i found about a month ago on the net that sold high pressure fuel pumps and injectors suited for spark plug threads.. if it wasnt for lack of funds i would be seriously interested in developing a stratified charge direct injection system for the fuel pig rotary. that would keep the engine temps down as well when cruising, cause it would draw in a full volume of air for a little bit of gas. audi also claimed direct injection improved the thermodynamic performance of their motors because the extra air in the cylinder insulated the flamefront from the bore, keeping the heat out of the motor.

must go fix bathroom sink now.. someone find me injectors!!

krew

Check out my set up http://www.cardomain.com/ride/842626/1
SDS. ECU.
RB intake, that my buddy put bungs in, for me

Cowboyfun

Zac, what is the biggest hurdle going with this efi system. I don't have any real concern with what standalone to use, just whatever works. Can I still set this up to be smog legal? Do I need to create a new wiring harness or can I just plug it in and go? Obviously I would need injectors, etc. I am looking at more than one option right now and you seem to be very knowledgeable about the auto-nomics kit.