www.cardomain.com/id/alcatranz518 (select the the cavalier)

Hello all, well I've been around for years, but never posted. Finally hear I am, at the end of my wits. I posted my page address so it would be easier for you all to see what I am working with, hell, some of you may know the car. Anyways, I have tried to tune it for a long time and I have a few MAJOR issues.

1) I have NO ONE who wants to rebuild or sell me bigger injectors. I have the side feed ones as you all I am sure are aware of. Any ideas who/where I can or what other options I may have to fix this issue.

2) I cannot tune it for the fuel/ timing. As you can see, I have high compression and a T3 turbo kit from Jtuners. (used to be cavalierconnection)

I used to have an MSD Dis 2 and an Apexi SAFC. YA, those were a waste of money! If anyone knows ho to fix this issue or how to help, where to buy, ANYTHING...please email me. my email is smludt@gmail.com

Thanks for looking and any help. I don''t wanna sell the car because I am in a Hinda dominated area, and well, do I have to explain more?
Thanks again, Sean

You've been around for years? The injector question comes up once a month.

Look for top feed conversion in boost or performance forum. That's the best way to get more fuel. Switch to 97 or newer pcm fro tuning.

-->Slow

I have been registered for years, but never really active. I became frustrated w/ the car in 2002 and haven't touched it or anything Cav related in years. All I would do is threaten to seel her, because it made me SO mad. Now, I finally have my ambition back and want to finish the car. I just am back in college this time and am on a limited budget, I am sure everyone hear knows what I mean. Unfortunately, I am a victim of my own cicumstance, and a little retarded sometimes too.

Thanks, for the advice to search. I looked and have found a lot of good info. I will be doing some reading. I have read about Stevefires' and Emry's conversion, how did you do yours. did you finish? I like their conversion, I just am hardheaded and am trying to see if I can find something w/ TBI side feeds. But will keep those in mind for a last resort.

Also, Has anyone used this Split Sec FTC1 that jtuners sells? I am iffy on MS and Emanage, so I was into that. If not, I will do the 97 conv. on the PCM. But the FTC1 seems promising from what the company says. Just the R&D dept. always is more sure of their product (understandable). I just wanna hear from the guys that actually use it. That is REAL testing.

I would say that the FTC is a good product having researched it!! HPT is also a good product. you just have to way the cost/benefit factor for your particular application!!! I don't know what it cost to swap to a 97 PCM but you also have to add in the HPT package unless the PCM adds enough fuel for what you want (doubt it) another option to consider if you still have your MSD DIS-2 is you could use it for timing control and then use a injector driver(mega squirt can be used in this way, or just search the web, split second has one thats a different product from their FTC Split Second ) to run additional injectors to add fuel when needed (i.e. during boost) just to add in another option!!!


'99 2.2 OHV w/3spd auto (work in progress)

http://www.cardomain.com/ride/2322134

I would go Saturn injectors with Megasquirt and afpr (make sure to get v3.0 or the flyback board for the v2.2), and a programmable DIS-II to make sure you spark.



fortune cookie say:
better a delay than a disaster.

I didn't finish mine. My friend from the machine shop called me the other day and told me to get down there and do something with it so he doesn't owe me any money. That led to a discussion of who owes who, but no work.

The car it was going in has gotten rusty and isn't being driven so the conversion isn't high on the priority list.

The Saturn injectors will work. I had a real tough time tuning them with a factory ecm. Maybe the MS will work better?

-->Slow

Well I am going to do A LOT more reading. I am working with another kid in my area who is like a God building and tuning 11 and 12 sec. hondas. I know hondas different, but all the help I can get. Plus, he is very good at what he does, he thinks we can tackle this with a lot of the info in here. We are both pretty optiamistic right now. So we will see. I will keep posting whenever we progress. I am gonna do some more with this FTC!. Its seem maybe my best bet. But like I said, the 07 pcm conversion will be my back up. MS is also in the picture, but way more complex from what I have read. The FTC seems fairy easy compared to my other options at the moment. And a little cheaper too.

Bob Martin-> You have researched, have you tried it? Just curious. I am eager to hear results and experiences from people with Split Sec's equipment. I have the dis-2 on ebay right now w/ the coil adapters too. I figured I would go complete w/ Engine management, timing included. Just easier I figured as all in one. So I had to sell the DIS2 for money towards the Eng Man.

The simpler a system the less flexible it tends to be. If you can find a MEFI controller (Marine Electronic Fuel Injection) you could use that for fuel and spark. The MEFI units are very small GM made controllers which can fit under a dashboard or under a hood. Older ones are available on Ebay sometimes for short $$.

-->Slow

My buddy just asked me which injectors you all are using for your conversion because of compatibility. Such as the applications they were meant for, or the Impedance of them.

I.E. - He explained on his Honda, if he used DSM injectors, he would need a resistor box.
To eliminate this hassle, he wanted to know what route you all have used.

Also, I think because of my application, I will need 550cc injectors. Does that sound right? Keep in mind I am also running 11:1 compression and a .480"/ 320 deg duration cam along with the turbo. I would like to run 10 psi and maybe...a very big maybe, run my Nitrous again one day. Your thoughts?

Resistor boxes are for Japanese cars. You own a Domestic and you're better than that!

"Low Impedance" injectors are really known as peak and hold injectors. The injector driver circuitry opens the injector with a higher amount of current. When the driver senses that current has reached a specific level, called a "peak," it's limited to a lower current which is just enough to hold the injector open. This is the hold current.

A "high impedance" injector is called a saturated type. The coil impedance is high enough that current is fed to the injector without any "peak" or "hold" foolery. The injector coil is "saturated" with current.

A peak and hold driver will control a saturated type injector. The peak and hold driver will stay in peak mode, and the injector itself will limit the amount of current which passes through it. So a controller which can drive low impedance injectors will also operate high imps.

I'm not sure why you're keeping compression that high with a turbo. I think it's a bit of a suicide mission unless you can pay attention to all the things the engine tells you. I've spent a fair amount of time tuning and I'll say that you're definitely going to need a way to control timing with that configuration in order to keep it reliable and consistent.

I am using TBI injectors from a Saturn. They're "ultra low" impedance... about 1.6 Ohms each. My OBDI ecm is modified so the peak and hold driver circuits correctly sense peak current through the injectors.

The 97+ pcm will control low impedance injectors.

-->Slow

also try 034efi.com their injector controller is cool




horsepower is how hard you hit the wall, Torque is how far you push the wall with you

Sean I haven't used the FTC personally but Given your particular application I would say from my very in depth research that it would fit your application best. also the other option I told you would be very well fit due to your injector issues but its all up to your abilities and how simple or complex you want to be if you do use a seperate injector driver as I've suggested. also consider a just using a boost retard box that retards ignition when its onboard map sensor sees boost and lets the factory PCM have its way when no boost is present. you can get a retard box from MSD, or you could search for a J&S safegaurd I know people that have had very great results with both.


'99 2.2 OHV w/3spd auto (work in progress)

http://www.cardomain.com/ride/2322134

how many retards are going to think having bigger injectors give you more fuel , your pcm controls air/fuel ratio 14.7:1 puting a bigger injector doesnt help until your 02 sensor reaches 600 degrees F then goes into closed loop and becomes funchanal then you get more fuel so in your case your running lean until your o2 sensor starts to work

Displacement= 2.2L
Valve Train= OHV
Bore & Stroke= 3.50 x 3.46
Compression Ratio= 9 to 1
Net HP @ RPM= 125 @ 5200
Maximum Torque Ft Lbs @ RPM= 135 @ 4000
Fuel System= MFI
Normal Oil Pressure: psi @ 3000 RPM= 56

This is what happens when you're allowed out of the newbies forum too soon. You're still a bit technically challenged and you seem a bit dis funch anal, too.

Now that we've exchanged insults, you've got a chance to learn. Retard comments aside, you may be interested to know there's a limit to the maximum amount of fuel the injector can deliver. No one is trying to get more fuel when the ecm is in closed loop, which is the only time the O2 sensor is used. Due to the turbo, larger cam, and better breathing characteristics of the engine we need more fuel when we're making maximum hp. The stock injectors don't do the job.

-->Slow