you dont need 2 ecus to run over 8psi. it does make it a bit easier or you could just go with a stand alone ecu and make it way easier to tune. but swaping all depends on a few things, if you already still have the 2.2 in the truck (its way easier to put all the stuff on then it is to swap for a v8). you dont have to mess with any of the harnesses to get the motor to run by its self.

now i will also give some points on swaping for a v8. if you do this with the money you can get for what you already have i would just go lsx and never look back but i would swap that 8.5 for a ford 8.8 (or a 9'' if you want). you can get about the same mpgs out of a lsx with v8 horsepower (and that awesome sound). and if you want to turbo it you can make a ton of power without really having to build up the motor (you can get a good 500-600 hp if not more out of the stock motor with a turbo and a tune). my argument for the lsx is that its so easy to do that if your not keeping the stock motor there is not really a good reason not to do an lsx unless you can get an sbc for cheap or free.

either way for my opinion is a turbo 2.2 is cool but if you really dont want it go all out and lsx!

i guess its all what youd rather have and how much work you really want and are willing to do. shoot an lsx swap is almost easier than an sbc swap.

ive always wanted the v8 so in my option with the money for it id go lsx.

 

The market will probably be pretty small as far as selling all of the stuff you currently have. Keep that stuff, turbo the 2.2, buy another s10 and LSx swap that. Then just have both. Lol

 

I want to keep the car obd2 compliant. Or at least be able to pass inspection in NC. That's why I am not sure what to do about the ECU. I have run megasquirt before but all sorts of "hacks" need to be made to keep the stock ecu happy.

Has anyone ran a AEM F/IC? I have emailed the AEM and have had poor responses on how it would work with any gm. They make a universal I just have lots of doubts on it. :-/
http://www.aemelectronics.com/engine-management-systems-9/fuel-ignition-controller-f-ic-12/

 

i'm obd2 compliant in illinois. you'll only need to use a o2 spacer on cat sensor. your motor will run like normal when not in boost for testing. even in boost there are'nt any codes.

 

Do you guys scan air through the tailpipe or through the OBD port there? If they do a real sniff test by hooking up a tube through your exhaust and measuring the output there you might be in some trouble, but if you guys just do simple OBD scan I'm sure you'll be fine. A_CLEANMACHINE, you're obviously from Illinois and you've gone through this so I trust you know more and would know the best answer.

 

That's for Emissions testing. I live in Virginia, in Fauquier County where there are no emissions testing do to the fact that the county is pretty rural and there aren't that many cars on the roads or homes built. If you head NE towards shit hole DC then that's when Emissions come into play. I just have to get annual state safety inspections where I live. Good luck Guys

 

Its ecu only here! And they check that the catalytic converter exists.

 

I would stay away from AEM's FIC. I tried the very same on an S2000, turbo and goodies while attempting to tune with the FIC. Not much luck, went stand alone. Needless to say I still have the FIC.

 

Why did you have issues with it? Or rather what caused the issues? B/c if you have one for sale... i could be very interested. As long as it is universal.

 

No fidanza flywheel. Go with aasco or clutch masters flywheel.

Sent from AutoGuide.com Free App

 

@GMC, why not Fidanza and where did you find other brands you mentioned? In process of rebuilding a 2.2L and adding some performances goodies along the way. Sorry to veer off subject I saw your old post from awhile ago. Thanks for the advice in advance!

 

It may have been due to the fact that it was on a Honduh with about 75,567 sensors. We were only able to do a limited amount of tuning and when we got into the higher boost pressures it just wouldnt cooperate. Not to mention our tuner really didn't like it, largely due to the fact that it was an S2000.

I had the FIC listed on ebay along with the harness and oddly enough it didn't sell, even with the killer price. It's the 30-1910 model, if it will work for you I'll give you a good price.

 

I just wanted to post that I am not going to go V8 anymore. I found a tune! One that is legal and S10 users out there can actually tune Speed density instead of using Alpha-n with HPTuners. There are a few restrictions though I just wanted to point out. I found all this information on the J-bodies forum while desperately searching for something to be turboed and keep street legal. I found the LD9 tune.

Apparently in 2002-03 chevy cavalier 2.4 non-ecotec is the tune in question. It is a speed density style tuning which means the ecu can appropriately calculate above atmosphere pressures (boost) without having to use Rising Rate fuel regulators with alpha -n and being able to properly tune timing as well.

The user /tuner will need a 2000+ ecu and ensure that his/her truck has a bcm. Otherwise harness changes are required. Also a 2 bar map sensor is required. The following part numbers will work.
Chevy: 12580698 or 09350899 or EC1794 (o'reilly's part number )

So there it is. I have already pushed the tune onto my ecu without issues. I am currently waiting for my 2bar map sensor from Summitracing which is due to deliver friday.

Also Planning on buying some injectors from http://racetronix.com/products/ whom I have bought from before.

 

Also a 2 bar map sensor is required. The following part numbers will work.
Chevy: 12580698 or 09350899 or EC1794 (o'reilly's part number )

So there it is. I have already pushed the tune onto my ecu without issues. I am currently waiting for my 2bar map sensor from Summitracing which is due to deliver friday.

This is it.

http://www.summitracing.com/search/make/chevrolet/part-type/map-sensors/map-sensor-range-bar/2-bar?SortBy=BestKeywordMatch&SortOrder=Ascending

Or do a search. Chevy, map sensor, 2 bar

 

I have heard about that tune before, but never actually seen if it works 100% or not. some people have said they had trouble with the speedometer not working i think, but no one really confirmed it to be true or not.

Everything still working on your truck?

 

certainly good to hear, will certainly be watching.

 

Soooo I can report the following.

Pros:
1. My S10 runs great just pushing the tune. Runs better than the tune I was working on while it is NA.
2. I can now tune for boost correctly. This OS/SC tune will allow users to tune to 200kpa (14.7 psi). The stock s10 os/ecu only allows alpha-n tuning which cannot account for anything above 1 atmosphere. Those out there running turbos on the stock os are not able to account for fuel or timing while in boost. Yes they may be using rising rate fuel regulators or some other modifier to account for fuel. BUT there timing maps are ultra limited.


Cons:
1. Yes the speedo does not work right out of the box. I will find a way around this or to fix it.
2. The battery light is on. (whatever)

Afterthoughts:
User must buy the 2 bar map sensor listed above. ($62 at summitracing plus shipping 74ish )

The Speedo can be fixed or a aftermarket item purchased to fix. Not a biggie.

I am going to run this tune no matter what the issues are. Because the main issue with stock S10 ecu is that the Tuner cannot account for boost in the fuel or timing maps. (RANT: You will see some turbo s10s only running 5psi. That is because the tuner they went to can only tune for boost out of the PE map or 100% throttle which is completely true with the stock ecu/os. The tuners are Pushing the bounds on the stock ecu/os it at that.)

I will post more as I play over the weekend.

 

You got the part number on the map sensor from summit?

 

Did you talk to David at dts2.net about tuning your ECU. I asked him about tuning mine a month or so ago he said he would do it no problem. Im going to send him mine in the next few weeks.

 

I know Dave that's whom I purchased my built block through. I also bought his stage 1 kit on an older truck I no longer have. Yes I have talked with him, met him on several occasions. One might say we used to party pretty hard together when we lived in the same areas. Dave does good stuff.

To answer your question I want to tune my own ride.


I just wanted to provide another tuning option to the community.

 

From what I read from cs xtreme on here states our ECU don't use the map sensor except for idle and for auto trans shifting.
post #8
http://www.s10forum.com/forum/f105/reason-why-not-to-bolt-on-performance-parts-on-ur-2-2l-326471/
and here post #168 and #171
http://www.s10forum.com/forum/f105/2-2l-turbo-engine-build-321875/index4.html

Is he wrong?

 

Racermike450 that is mostly true. (I have manual s10. I haven't verified other tables. I do believe the High RPM table also uses the map sensor indirectly) The stock os/ecu uses Alpha N calculations. Which use a calculation based on TPS and RPM. The LD9 tune I was proclaiming uses Map vs RPM.

Quote from MegaSquirt Manual (This is where I started learning)
MegaSquirt Manual (standalone ecu)
“Control Algorithm” lets you choose between Speed Density and Alpha-N. In all cases, you should choose speed density unless you have a good reason to do otherwise, and understand how this will change your tuning efforts. All tuning advice in this manual is based on the speed-density algorithm. Alpha-N uses the throttle position (alpha) and RPM (N) to calculate the amount of fuel to inject as opposed to using the manifold absolute pressure (MAP) and RPM to calculate the amount of fuel to inject. Alpha-N is useful for long duration cams where the resolution of manifold air pressure (map) would be small. It is also useful to get smoother idle on engines that have erratic map values.

 

i learned about the ld9 tune a couple yrs ago on jbody,those guys are really way ahead of us here. if you find the fixes for speedo and eng lite let us know that tune would be better.

 

So basically I need to talk with David and see if I need the 2 bar map depending on how he tunes it am I correct?

 

glad to hear that theres an ld9 tune, seeing the lsx guys run a similar tune so that they can ditch the maf and it pretty much does the same. and yea those jbody guys are way ahead. id like to retune my comp for N/A.

 

Where did you find the ld9 os/tune at i cant find it anywhere and im not a member of jbody so i cant ask any of them?

 

the last time i made contact w/jbody member he offered the tune to me. i didn't do a thing since then cuz of those issues i'm waiting for it to get better hopefully.check with andy he's hot on the case.

 

so once i find an ld9 file i just need my 2 credits for the ln2 to unlock it right then upload the ld9 file?

 

Andy is mia haven't heard from him in awhile. I was gona have him tune mine but he had multiple probloms with the tune. So I had to have David at dts2.net tune mine.

 

I have the ld9 tune now havent had a chance to get into it. I see andy hasnt been on in some time so i dont no if he ever figured out the speedo issue. Was going to post it on here but not sure how.

 

i don't know if bcm are wired same as the jbody so i guess you''ll see what happens. i'm going to get tuned with ld9 soon if it works out for you. good luck post back your results as some of us are patiently waiting.