184rwhp/212rwtq...

[DarksideGA]

a faulty o2 sensor would read a lean condition, and enrich the mixture. manufacturer suggest you replace the sensor every 60k miles, even if its not readily apparent a new one is always better for your a/f ratio

[94Camaro]

Ok guys heres what im doing:

I found a colder NGK plug that im going to switch to in the future. It's gonna take me a couple of weeks and hopefully the Bosch's last that long cause rite now im flat broke (beyond flat broke).

Seeing as how I have a 94 3.4L with OBD I and a Speed Density setup - I dont need to clean out the MAF but thats good to know, thanks for the idea.

the 02 sensors are a really good idea. I'm gonna get a set for a Z28 and wire them in so i have heated 02's. (will read better). in the long run im going to get a megasquirt and a set of wideband 02's.

just fyi - im pretty sure that im not gonna get any extra hp/tq unless i go and have the ecm tuned. at this point im just trying to stop the lean/rich condition until i can tune the car.

im experimenting.

im very interested in this however:

using copper @ .045 - couldnt use MSD DIS-4. would misfire like crazy @ 2500 rpm under load. now i know you are gonna say, maybe you wired it wrong. well, after putting the Bosch plat+4 in, i can hook up and use the MSD...it still misfires but only once or twice @ like 3500 - 4000 rpm, and only in like 2nd gear or 3rd gear.

before i couldnt get out of first without hitting a misfire. now i can drive all the way into fourth if i dont accelerate too hard. so the difference in spark energy, or material, or both has caused a change where the engine isnt misfiring as bad.

[Superdave]

put your stock injectors back in and swap the FPR with one from a pre-99 3400/3100. I bet you'll fix some of your fueling issues with that alone.


you really need to tune the computer to run the Multec 2 injectors, the fueling is completely different...

Are you datalogging this thing at all?

[IsaacHayes]

x2 on the stock injectors/FPR and new O2. That should help bring it a lot closer to perfect. At least the stock ECM can adjust those injectors better.

[94Camaro]

um..i dont think i have multec 2 injectors...could someone show me a picture?

[Superdave]

the newer M-2 injectors look like this:

the older M-2 injectors look like this:

which also look just like your stock Multec 1 injectors...

with your stock injectors and the pre'99 FPR your fueling will be right around stock and your ECM will actually know what's going on and be able to controll your BLM's better. It should be able to get your A/F close to normal and you'll feel alot more power coming from the engine. Without real datalogs you'll never be able to figure out what's going on in there.

[SappySE107]

I doubt even stock injectors are a good idea at this point. You will run very lean with the stock injectors at WOT.

I have no idea right now on the plugs/knock condition unless its the heat range difference between plugs.

[nikos95]

Uh, off topic here, but platinum is not a better conductor then copper, and neither is gold. Silver is the only naturally occuring metal that is a better conductor then copper. In fact, platinum is only marginally better then steel.

Very true, gold is too soft, platinum is to hard. Another really good one is Nickel.

Yes you NEED a tune! I am going to run into that same issue soon myself.

Let me know who's does your tune. Or if you go with a system like megasquirt.

[94Camaro]

Very true, gold is too soft, platinum is to hard. Another really good one is Nickel.

Yes you NEED a tune! I am going to run into that same issue soon myself.

Let me know who's does your tune. Or if you go with a system like megasquirt.

going w/ megasquirt.

Conductive properties aside, what I am trying to do is find a plug that will keep me from misfiring so i can use the nifty 480 metal box sitting in the engine bay (its the biggest waste of money ive ever done up till now only cause i cant use the damn thing).

i think when i start using it - it will help immensly, mostly cause it'll burn more of the fuel and also help retard the timing at higher rpms and keep teh car from misfiring. i could be totally talking out of my ass though as im not a qualified mechanic and im just using common sense to take a guess at things.

Honestly though my common-sense-guesses are what led me to make the 3400 setup work on the 3.4L RWD. (everyone was telling me it wouldnt work, would be a waste of money, why bother, etc.) so i trust my guesses only because so far i havent had one fail me yet.

[nikos95]

Honestly though my common-sense-guesses are what led me to make the 3400 setup work on the 3.4L RWD. (everyone was telling me it wouldnt work, would be a waste of money, why bother, etc.) so i trust my guesses only because so far i havent had one fail me yet.

Good to see there are more of us. Ever heard of Tiago, he had at least one insane 3.4 f-body don't know if he still does or what but I have heard plenty about him and his car.


I want to do the same thing go megasquirt, but I know nothing about programing a system like that, or actually hooking it up, so I'm going to need to find someone who can do that for me.

[94Camaro]

Good to see there are more of us. Ever heard of Tiago, he had at least one insane 3.4 f-body don't know if he still does or what but I have heard plenty about him and his car...

<chuckles> I knew Tiago when he knew about as much as I did, which was pretty close to not much LOL. The real pioneer is James Montigny. He had the only Norris Racing Tech 3.5L V6 F-body. $3500 worth of work done (lots of R&D) by a professional racing shop.

Anyway, yea he still has the 3.4 - hes workin on getting it back to running condition cause he let it sit too long and now it idles funky. I talk to him on a regular basis.

[nikos95]

Nice... Ya I hear alot about him heard James name a few times but not as much.
I have been talking to a guy in Florida about getting a turbo kit for the 3.4 going again, he wants one, I want one, and a few others are pretty ready to jump into it. But my main issue like I said is programming, almost makes me want to get a new intake and carb....

[nikos95]

Wondering since you have done most of this already, what injectors should I put in my car the higher flow rate ones for a Grand Am or the ones for a Camaro after my head and intake swap? Just want to get a price list all together so I can get this done asap. And what size 18-21lb? I have an exhuast system, going to put cut-outs in it soon, a cai, and adding ignition system soon.

[94Camaro]

working that out myself rite now.

[nikos95]

So I'm guessing the factory camaro injectors will still work though with the head and intake swap?