Some news on this effort. Last night I felt comfortable enough to go WOT at 4psi and carried it to red line. AFR was mid 10's, a bit rich and fuel pressure rose to about 70-75psi. I had set my fuel pressure much lower (because of the larger injectors, I wanted to get to as close to 250cc at idle as possible)28psi under vaccum. I feel I can still go a bit lower as I'm still above where RC says is the minimum fuel pressure to get an even spray.

I then upped the boost to 6.5 and ran it up to red line in 3rd and 4th gear. Again, no problems and my AFR to my surprise went into the mid 9's. Then the next run at 6.5 I watched the fuel pressure which rose to 80-85lbs, thats why the aft went richer. This is workable as I need to lower my fuel pressure a bit more.

Later that night I got really brave and upped the boost to 9psi. the AFR stayed the same, mid 9's but the fuel pressure rose to 90-95psi.

For those of you who have seen a couple threads I've put out about the emanage looking like an ekg on the duty cycle...Today I hooked up my computer and on my way to work ran a 6psi run to see if the duty cycle was doing what it was doing with the stock injectors. The old way looked like this,





On the run today, it is flat across the board!! The larger injectors have fixed this problem. I will have to post the snap shot of the screen later tonight as I want to do another run at 9psi as see what it looks like. All in all, these 440's seem to have helped this situation.

Btw, this car is UNBELEIVEABLE at 9 psi! It will soon see a dyno. Cheers!

 

congrats, emanage is good stuff

turbo i'm guessing?

 

nice

 

That's great news. So how did it feel at 9psi?

 

holy crap. 9 psi on this setup would make some impressive power. if i remember correctly this turbine should flow well up to 26 psi, unlike other turbos which fall off as boost is raised (stock turbines especially)
i think running 9 psi is a little nuts for everyday driving, at least on stock internals. of course we won't know until its been done for long periods of time. so keep us posted on this!
BTW,
I remember reading about internal upgrades you were planning, you still gonna do it? You could boost insanely 12psi or >. Would love to see a 600+ whp cls! It would be quite pointless as its FWD, but pulling through 100-140 faster than enzo's and such would give a really nice feeling.
good work, hope you get the results your looking for!

 

After work last night I had all intentions of giving it a good road test. Living in Miami, even Sunday night at 10pm can pose a challange on the highway. Timings everything. So I didn't get to record any data with the emange, but all indications seem to show drastic improvement. I'll get something up when I can.

I'm still having that problem at cruise with what seems like the signal being killed to to the injectors. Only does it when the parameter setting in the emanage is changed to reflect the new size of the injector. I'm going to see someone about that after work today.

Jeff, feels great at 9psi. Torqe steer is present when under full power even while driving straight, but not unmanageable.
Power3dfx- I'm still working on the other motor, one day i'll start a thread on it. I wouldn't use 9psi everyday for it surely will reduce the life of this motor. The stock internals are fine except for the pistons. The cast pistons in this car would be the first to go IMO. It would only take a second under a lean condition at that boost level to leave the death smoke out the tailpipes. If and injector should lock up or clog, fuel pump lose power, fpr burp, the list is endless, and good bye motor.

 

video time @ 9psi!!! lol

 

I fixed what appeared to be the signal being killed yesterday. Apparently, the value being imputed into the parameter setting needed to be tweaked a little. At first I put in the old injector value and new injector value. I was putting in 250/440. I upped the value to 310/440 and that seems to work. The idle and some surging I had has nearly gone away. I'm going to try a few more values to try to smooth it out more, but as it is now it's nearly perfect.

I'm going to change the FPR this week and slow the ramp rate down some, I'm thinking it could be reduced to 2-3 to 1 with the new injectors. I'm also going to put on the GReddy map sensor. When that's done, It's going to an expert on emanage tuning as I'm just spinning my wheels on trying to do it myself. I know just enough to waste gas and it sucks trying to do it on the road. So if all goes well, next week it will by dyno tuned.

 

i thought stock injectors were rated at 270. you might want to try that out too.

 

RC told me that they are 250's from a previous check of one a while back. I did try 270 and although it was better, it still wasn't working right while in closed loop. Did you have a similar problem?

 

i haven't changed my injectors out yet so i'm unable to answer the question. i do have some s2k injectors laying around so i'll report back when those goes in sometime in the spring.

 

I think on mine when they tuned my car they did something different on the parameters also to upgrade from my stock injectors to the s2k injectors. I'll check next time I drive the tl.

 

didn't you have an additional injector on there before? Why not just take the cc of the 7th injector, divide it by 6 then add that to 250 or 270 and maybe that will work since that extra injector was being split between the 6 cylinders.

 

How much timing retard at 9psi?

I've got a huge grin on my face after reading this thread. 9psi? Do you have a death wish? hahahahah That's easily pushing 500whp.

 

^^ you should read his STi kill story. I was with how he was describing it. Hewas "just crusing next to the sti as the sti was 'trying' to race him, then when he got bored of watching the sti driver do wild shifts he went WOt and pulled far far away"

 

You may find this hard to believe, but I zero'd out the timing map, no timing pulled. No detonation either as I've put on a Knock Link (detector) that lights up like a christmas tree when detonation occurs. I get away with it because I'm using 100LL av gas. The car likes that stuff better than the 100 unleaded. It pulled really smooth but was really on the rich side, 9.5 roughly.

Ghost-, that's a good thought, but it doesn't work that way with the additional injector as it's not always on.

I tried another setting this morning on the way to work and think I've found the magic number, 320/440. Any slight surge I had at 310/440 seems to be gone. I'm going to keep bumping it up to see what happens.

 

kool

 

Sounds great, I can't wait to see vid of this thing in action. They don't have upgraded cams and pistons for the J do they?

 

You can get pistons from CP, JE or any of the piston makers, and as to cams...I'm not saying, you'll have to do some homework on that one

 

Great upgrade Tom.

Yes, E-Manage does some weird stuff but with larger injectors you have to play around to find a perfect spot. I entered 310/370 (it's perfect for me), 0 timing as well and my AFR has not seen higher than 11.6 at full boost.

BTW, decided to clean my '04 S2K injectors since purchased used and RC confirmed they actually 370cc. Here are the test flow results:



Next is 1:1 FPR on the list.

 

It's funny to see this as we all thought the s2k was 310, and while at the dyno shop the other day they told me as well they are 370's. This shop I dyno'd at are into s2k's with a passion and have other type cars with s2k motors in them.


I tried several combinations on imputing injector sizes into the emanage. I found one that works pretty well, but it's not perect. The combinations are endless and there has to be a better way. While driving, the closed loop mode can't find a happy spot at a certain rpm, but much better than before with the imput of 250/440, I have 340/440 now and runs as good as I can get it.

It's a possibility that you won't be able to tune with a 1:1 regulator. You may need a few extra pounds fuel pressure to keep the afr in the happy spot. You'll never know until you give it a try though. Keep us posted.

 

I'm going with 1:1 FPR next week along with fuel line increase and stock return (Walbro pump is a keeper). Hope that increase in volume going to resolve my ocassional P1399 (random misfires). With that I should see static FP at 35-38psi and similar to yours at WOT. Of course, I'll adjust values myself with e-manage and eventually tune it on dyno sometime next month which should be much better with 1:1 vs. rising-rate FPR. Keep in mind my target is 100whp less than you currently experience, thus my 370cc should be adequate with 1:1. Anyway, I'll keep you posted how that goes.

 

i thought S2K's were 360 and we are 270?

 

All along we thought S2K's were 310 and we were 270. Now we've learned the S2K's are 370s and they slide right in.