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Microtech Microtech on an Rx8 - Starting help

Old 09-07-10, 10:07 AM
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Microtech on an Rx8 - Starting help

So recently got my motor back in my RX8 and finally got it running after some issues (thanks for the help guys). When the motor got all fixed and up to par and ready to fire, it would not strart or idle. I made some adjustments to the Idle in the Int-x (Which is the rx8 plug and play version of the microtech and i removed a ton of fuel) and got the car to idle. Then i moved on to getting the car to start. Up untill now i would always have to pop start it to get it running. Once it starts, it runs really smooth and well through the rpm and now it holds idle. I proceded to add and remove fuel from the crank map. I ended up removing alot of fuel from it and am able to get it to fire. It still takes about three times of turning the car over for about 10 seconds to get it to start and fire. When it fires, it reaks of fuel. (obviously since its dumping fuel in it trying to start).

A little more info and could most likely be my problem. I am currently running the turbo 91 map that comes pre loaded on the int-x. I have an esmeril racing turbo kit and for some reason the esmeril racing map is no longer on the dongule. I am not sure what happend to it or why its missing but somewhere along the line it got taken off. So, i am thinking that the map i am running is thinking i have injectors in differnt spots. (i am not sure but i believe that the Turbo 91 map would have the larger injectors in the p2 spot and the esmeril map would have the 1000cc injectors in the Secondary spot)

Basically jsut lookin for a little help to get the car started. I am trying to figure out who and when i can get it tuned but would really like to fix this starting issue. Maybe someone with the esmeril kit can take some screen shots of the maps they have and post them up for starting. OR, any other tips or pointers would be great. Thanks guys.

I realize this is on an rx8 but i am also sure that alot/most of this will be the same as the rx7. Anyway, jsut lookin to see what info i can get.
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Old 09-09-10, 02:06 AM
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Who built the engine? Do a compression test.
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Old 09-10-10, 10:49 AM
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^^^^ LOL! That's funny...sorry... maybe not so funny but I found it funny at the time!
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Old 09-10-10, 12:23 PM
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Found a map and made a few adjustments to it. Its getting alot better the more time i find to play with it. It's a Steve Kan built motor and compression is good. Just the tuning that needs some work and a few more break in miles will hopefully give it some help also. I believe i have found myself on the right track though.
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Old 09-10-10, 02:15 PM
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sorry I failed to comment earlier but realize that the ecu will look at both cranking AND coolant temp map to make it's calculation for injection time so just leaning out the crank map will not cut it, look at the coolant temp map and lean that out also.

Also IF you know what size injectors the base map was made for then you can calculate how much larger than those injectors yours are and then turn around and then take the inverse of that number and adjust injection time by that much, example:

'91 turbo II map had 500cc injectors and you are running 1000cc injectors (assumption) then:
this means X= 2(Y) therefore since the "Y" injectors are twice as large as the "X" injectors they're delivering twice as much fuel as needed so injection time needs to be cut by half. So if you know these numbers you can make this calculation and it will get you a lot closer and you can tweak from there...hope this helps!!
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