jundoe

I Hope u can help me out with this problem --

I have a mtx-8 (with laptop sw) running on a 88 T2, mods are:
--huge street ported engine (3mm seals and all the internal goodies)
--Greddy FMIC
--TD06 turbo
-- parallel fuel system with aerodyne fpr (running @ 45psi)
--stock primaries and 1600cc secondaries
--upgraded fluidyne radiator
--Blitz sbc-id boost controller
-- etc etc

My Problem is.... U know where u set up injector staging on the microtec .. under options/REVstg,MAPstg,%Stage.

Once I activate the staging for the secondaries, lets just say ...
REVstg 3000
MAPstg 00HG
%Stage 50%

Once I hit 00hg @ 3000rpm the car starts sputtering like its not getting enough fuel.

This is the case were ever i set the MAPstg to. if I set it to 4psi the car will start acting up when i hit 4 psi @ 3000rpm.

What do u think ?? is there something wrong with my secondaries or is there some other setting that i have to check?? would the pump settings have anything to do with this issue?? Is there anyway to tell which injectors are actually running at a certain point in time?
I know that all my wiring is fine cuz when i didnt have the staging activated all my injectors were running at the same time i was running super rich. now i am running lean (with 1600's 2nds I shouldnt be lean at all).


Thanks in advance for your help!

Jun

10sec rx7

Those settings are pretty close to mine, what are your maps doing when you get to 00hg?? are you making any massive cahnges in the fuel flow?? have you tryed turning the staging off all together and see what happens?? have the injectors been checked and flowed?

the %stage setting you have will add 50% more fuel to the fuel curve, so say you have 5ms at 05hg when it gets to 00hg it should drop down to say 3ms as a example (dont use those numbers as they are just off the top of my head)

Are you sure it is going lean?? its not just filling it up with fuel and flooding it? what are the A/F ratios when it splutters??

Dale

jundoe

If turn the staging off, I run way too Rich.

The thing that is weird right now is im running rich at idle (13's) and I lean out at WOT. Under WOT im registering 14.7 all across the board (which i know, especially under boost, i should be in the 11's or 12's). but when i hit that point (MapStg) when it sputters, it jumps to higher values than that. You what it seems like is, like im only running off of one set of injectors and they are getting maxed out.

My maps dont have any big jumps anywhere --they all have a pretty nice gradual curve.

Can I bother you for some settings? I just dont have anything to compare my settings with.

Thanks for your help , I really appreciate it!!
it is so hard to find anyone using Microtechs around here.

Jun

10sec rx7

if they are working with the staging turned off then they are working, so it would more than likley be something in the staging setup,

Ill have to plug my mazda ecu in to my ski boat (LT8) as my car is not wired yet (or painted for that matter) and ill get the settings out for you, but my car has 4x1200cc injectors so the settings will be slightly different and my ecu is only a MTX8,
if you switch it back to normal mapping mode and not matrix it makes things eaiser, once you have things pretty good there you can then make all maps the same using that option in the setup screen then swap back to matrix mode and work on the maps from there.

ill try and get some settings for you tonight.

Dale

10sec rx7

OK here is what i have my setup is 4x1200cc

mix trim -30%
map stage 05hg
%stg +50
rev stg 3000

20hg 1.75
15hg 2.32
10hg 3.00
5hg 4.00
0hg 5.00
2psi 5.56
4psi 5.65
6psi 6.02
8psi 7.06
10psi 7.32
14psi 7.62
16psi 8.25
18psi 8.68
20psi 9.18

if you switch to normal mode you can try these figures, i would leave you mixture trim at 0% to start with, you bottom end figures will be way different to mine due to the smaller injectors,

Let me know how it goes

Dale

madaz07

ive got a mt-8 but idont know muck about it

jundoe

thanks for the numbers Dale!

my number are a little higher due to the smaller primaries.

i am already running on normal mode.

I think i have the wrong settings elsewhere. I made the mistake of screwing with other settings without saving the defaults.

You wouldnt happen to have the pump settings and options settings too??

I appreciate all your help.

Thanks again man!

Jun

10sec rx7

Thats cool,

i know my pump 1 only puts in 2% more on my mazda but on my ski boat puts in 25% more!! so that is all dependent on the car,
i wish my computer was the LT series then i could just do screen dumps for you!!!
ill get some settings out for you tonight!
i will be picking up a LTX8 at lunch today from microtech, i can give you screen dumps of the standard maps if you like??? then you can go back to standard and save the map and play away and if something goes wrong the just load it back from the dogle again.

Dale

10sec rx7

here is the standard microtech base maps for the LTX8 13b turbo,

ill get the pump settings for you when i can dude,

[img]www.users.bigpond.com.au/dheiler/fuel.jpg[/img]

jundoe

Hey Dale,

Can u email me the fuel maps instead -- i cant seem to view the image you posted. jundoe@yahoo.com

Thanks,
Jun

10sec rx7

sorry dude put the wrong link in then the forum went down

here it is again

http://www.users.bigpond.net.au/dheiler/fuel.jpg

jundoe

Got it -- Thanks man!!

I did some trial runs again this weekend and i really think that i am running on one set of injectors (my secondaries)

-- i think i have a wrong setting somewhere that makes it just run on my secondaries --- because even on idle i try to adjust the %Stage for the secondaries, the idling starts acting up depending on how much i adjust it --

what do u think ?? any advice on what settings to check first?

Jun

10sec rx7

For some unknown reason the computer hasnt been set to 2 cyl has it?? check it in the config screen it should be 4cyl

Is all the wiring correct and the secondary injectors are the top 2 and primarys the bottom 2??

jundoe

all the settings are correct (4 cyl) and the wiring is correct also ( has been triple checked -- i will check it again though just to make sure ) --

I really think it has something to do with fuel or option settings (maybe the pump settings or something?? pump trigger? pumpstop?? rpmwot?) if u can get me the stock settings that would be cool.

When im idling, im running rich -- When i depress the gas and theres a drop in vacuum going into boost, I start running lean --
But under cruise (constant vacuum) the a/f ratios are fine (even a little rich)

Jun

10sec rx7

i will get the pump settings for you tomorrow, i wont be home till then,

It may be easier to send you another dongle with all the base settings in it and you can dump it to your computer and then send it back to me,

Dale

jundoe

That would be really great if you could do that !!!

I will pay for all the shipping costs.

Jun

10sec rx7

Ill get a dongle in the next few days for you, and send it over to you, ill send it express air so it will be there with in a week.
once you load the settings on your ecu then save them to map 4 on your dongle so they are always there,

jundoe

How much would an extra dongle cost?? Maybe I should just buy one instead of sending the thing back and forth.

10sec rx7

The dongle is $50au or around about $28us,
im easy either way, its up to you,

Dale

SaabGuy

As the months roll by I am becoming more and more interested in buying an EMS system for my modded 87 t2.

How do you guys like your Microtech system?? Will the MT-8 system work with a 13b?

I have reasearched a few ems systems out there but I cannot seem to find much on the Microtech system. What does it come with? What else do I need to buy?

Can I have some web sites specific for microtech rotary heads??

jundoe

I would definitely go with a Microtech unit and yes it will work with a 13BT.

The only trouble that I have really experienced is finding help.

And you definitely need a laptop so u can see all the maps.

Maybe Dale (10sec rx7) can help you with sites...most of em are in australia .

You can also go to www.atkinsrotary.com they are located in Puyallup, WA

jundoe

Hey Dale,

I think I will just buy one.
Can I just get one through you? If you could set that that up for me that would be cool. Maybe just save the base settings on Map 3 and 4 just to be sure and send it over.

I could send you the cash and a return Fedex envelope so you dont have to spend anything.

let me know if this is ok..

Thanks man!
Jun

jundoe

SaabGuy,

Heres a couple of sites ....

http://www.rigoliracing.com.au/microtech.htm

http://208.56.162.251/MicroTech/main.htm

http://www.thedynoshop.com/microtech.htm

I Hope this helps.

SaabGuy

Thanx that does help. Its really too bad there isnt more support for this system.

Do you think its as involved as say a haltech e6k? I'd get an e6k but its not really worth putting an expensive ems into a car worth not much more than a haltech.

jundoe

The Microtech is not as involved as the Haltech - it already comes with software that as soon as you get everything wired you can start the car right up -- the laptop interface is pretty simple. it is also windows based. I just made the mistake of messing with the handheld unit without saving anything first. But when i got my laptop running i saw most of the things i screwed up but im still need to put back a few base settings.
My car is running strong, it just needs a little more tweaking to run perfectly.



You can see my setup here ..... http://photos.yahoo.com/jundoe