ecotec swap (Page 26/98)
wftb MAY 25, 06:33 AM
i found a bunch of switches from summit.some are pretty trick ,completely adjustable ,and the sensor probe just goes onto the face of the radiator ,no need to do any plumbing at all .some as cheap as 25.00 .too bad i just got an order from them.i just got my vortech FMU and 100 psi in line fuel pump .i might not put these on this year because ever since i put the stock FPR back on the car has run like a top .absolutely no detonation ,smooth idle and lots of power .i dont even need premium any more and i have dialed way back on the water meth injection. the extra pump and FMU are for when i get a boost controller .so all you need to turbo a 2.2 and have it run well with the stock ecu is :
32 lb 14.4 ohm accell injectors and bosche recirculating valve
water methanol injection
of course this is with a big 16 g type turbocharger that requires an oil evacuation pump .no ecu tuning has been done .the stock ecu is handling it all very well .your results may vary.
wftb JUN 01, 08:50 AM
new parts

might not get installed for a while , its too nice out to work on the car .
fieroturbo JUN 02, 09:12 PM
Hey wftb! I found some backups of the ECM pinouts for the Ecotec. On the blue ECM connector, pin 43 is the cooling fan relay control. It's a dark green wire. Put that to the + side of the relay, and ground out the - side, and the ECM should take care of the cooling fan as long as the coolant temp sensor is getting it's signal to the ECM properly.

Also, I'm curious to know, just on a general basis, about how much alcohol gets used per gallon when using alcohol injection?
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Petty Officer Michael C Casaceli
Aircraft Electronics Technician Second Class
AIMD Brunswick (2007-present)
Patrol Squadron Ten (2003-2007)
United States Navy

[This message has been edited by fieroturbo (edited 06-02-2007).]

wftb JUN 03, 02:19 AM
on average i am using about 3 quarts per fill up ,depending on how heavy my foot gets . i dont know how that works out per gallon,the kit comes with three nozzles and i am using the second largest nozzle .the small nozzle did not seem to send enough in ,but i now realize there were other problems at the time.i have the controller set to not send in the max spray right now .i could probably use the small nozzle again , but why mess with a good thing .thanks for the tip on the fan control.i hooked up a rad switch the other day and it still has not gotten hot enough to turn on the fan yet.
ccfiero350 JUN 03, 09:49 AM
I have follwed your threads with much interest. I was wondering for a while what was reason for the alcohol injection rather then changing to a 2 bar map and adjust the timing tables to retard for boost?

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yellow 88 GT, not stock
white 88 notchie, 4 banger

wftb JUN 03, 09:02 PM
with the alcohol (water/meth) injection ,you dont have to retard the timing to control detonation.the larger fuel injectors and the added octane / cooling effect of the water /meth injection actually allow you to advance the timing if you want .i also had no room for an air to air intercooler ,so the injection system was a must .i hope to add hp tuners in the future but it really isnt needed at this time .if you go to hahn racecrafts website ,you will find what i think of as the ultimate ecotec turbo system - the port fueler .this system leaves the ecm in its stock configuration and uses a stand alone computer to send in extra fuel via 4 additional fuel injectors.thanks for the posts .
fieroturbo JUL 02, 10:37 PM
Hey WFTB, I've got an issue with my project.

My throttle cable... the clip on the insulation that is supposed to clip onto the bracket... mine is totally different, and leaves the end of the cable short of where it needs to be.

I'm thinking that you didn't have this issue because you have a V6 model, and the throttle cable is different. Do you have any good closeups of your setup?

Thanks again man!

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Petty Officer Michael C Casaceli
Aircraft Electronics Technician Second Class
AIMD Brunswick (2007-present)
Patrol Squadron Ten (2003-2007)
United States Navy

wftb JUL 03, 08:48 PM
here is a pic of the end of the cable .i forgot that the 4 cylinders have a different throttle cable .the v6 cable fits on like it was made for it .
fieroturbo JUL 05, 03:27 AM
Ok, but here's another question... which year is yours?

It seems there were two types of V6 throttle cables: 85-86, and 87-88. Either way, it's a well spent $50.

Thanks again man! It would take me much longer to figure this stuff out with the project if not for you.

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Petty Officer Michael C Casaceli
Aircraft Electronics Technician Second Class
AIMD Brunswick (2007-present)
Patrol Squadron Ten (2003-2007)
United States Navy

wftb JUL 23, 04:20 PM
my car started life as an 86 gt .(4 speed manual ) .sorry i didnt reply earlier , i have been on holiday .didnt go anywhere , just a lot of golfing .
a little item i added recently is this check valve from rb racing .it takes 1 psi to open and goes on the oil feed to the turbo .if the car sat for a few days ,it smoked like crazy for about three miles because of the oil slowly draining down into the turbo .running the scavenger pump prior to startup did not help , because the oil would already be past the seals before the pump was on .this check valve solved the problem completely .