I don't know about the others, but yes, I was coming right up next to injection misfire back in the day, depending on temps that day. I actually hit it a few times.

Now I'm running the cam lobe, de-shimed the HPFP to stroke it just a bit more, raised fuel pressure, opened up the allowed injection window, and leaned it out a bit.



I'm going to have to go back to gas come EFR time I think. Even though I'm only targeting lower 400s, I don't think it's got too much left in it, and I'm not entirely settled with the installation/operation strategy with the 5th injector.

 

Yeah exactly. I wouldn't take a stab a Stamina like that..

Ding ding ding.. You can honestly only be sympathetic to a limited extent. It's not the customer's fault that his work load is far more than he can handle within what should be deemed a "reasonable" time. I'm not bashing the guy, but it really is a fact that he's gotten to the point where he's bitten off far more than he can chew.

Which is one of many reasons why I said screw it a while back and decided to start tuning myself and stopped being a Trifecta dealer.

 

Do a 5th injector setup so you can keep your E-85 with the EFR. A 630cc injector and you could run full E-85 with the EFR especially if you have cams as well. Tuning it is like tuning for meth but because it is tied to the existing fuel system it should be more reliable assuming you do not run it hard on 2 gallons of fuel in the tank.

 

Will the 5th injector keep the carbon buildup from happening?

 

On the intake valves? Yes but the injector sprays only under heavier throttle loads (in boost). It can be adjusted with the controller to start at a certain psi then full flow by a certain psi. Intake valves gunky? Just do a few 0-120 pulls and they will be nice and clean.

 

Not if you never go wot and use it.

In all seriousness though, since it only comes on when needed, and is only a small amount, I doubt it would have a huge impact on buildup. I'd bet you'd have better success using a catch can with it if that's what you're wanting to solve.

 

I don't think the catchcan works for this, either. It may reduce it a little, but I don't see it solving the issue.

 

open your valve cover

 

That AND I still havent figured out how to properly run a catch can on an upgraded turbo like the BNR where the breather on the turbo is now gone.

 

Well, this brings us full-circle back to the original thread topic...

With something like the BNR, you could maybe run the back one to atmosphere without metering issues, with this ECP thing.

 

Yup thats why I posted on the last page about being sad that you and interview had issues because I saw this as a way to keep the BOV VTA

 

why?
valves?

i'm going to upload my stock tune today once I get home.
i'll see if the issue persists.
it didn't start doing this until i uploaded the ecp tune.

 

yea we'll see what happens. it would be nice to not have to buy a cold side pipe again.
i've sold my cold pipes with maf relocates twice now.

currently i have the stock bpv and hks ssqv working with no maf relocate.

 

nope - even I know this one.

overreving (even mometarily by accident) the LNF makes the rockers pop off...

I had it happen twice - the second time (when it became evident) I needed a WHOLE new top end... and it still ran like a champ.
the only hint was teh WRX burbble...

ZZP valve springs FTMFW... mental note - I need to buy those soon.

 

i have my rev limiter set to the stock limit and I never hit the limiter. I shift well before it.
guess thats why i didn't think it was the rockers.
i don't believe they are. it only happens when i shift to 2nd gear.
i can also avoid it if i shift into it easy and let off even easier, which makes me believe its not hardware avoided.

 

sometimes it just happens. i have had rocker arms come off twice on me. the second time was probably because of the first tho.

 

Well Vince sent me a new file to try out that corrects the fuel issue and maybe a few other things, so I'll be trying it out. In typical Vince fashion, he actually learned something new about how the ECU works in the background due to this issue, and may in turn use it to further refine his other tunes. lol

 

Vince sent me an email asking about the backfire. I ended up datalogging the issue and uploading my old tune. The car no longer backfires or is jerky when shifting into 2nd like it was. it would almost kind of bog then jerk itself into gear. i thought it was maybe a tranny differential pin issue or possibly the rockers....but it's fine now.

it does definitely feel slower now though that i'm on the normal e85 maf tune.

 

Yeah I mentioned it to him last night when I talked to him. He didn't see a ticket for your logs, so I guess he messaged you about it.

I did a quick flash before going to dinner last night with a new revision. Mine did more of the same, though LTFT isn't as bad. Vince stated mine may have to use a hybrid ECP approach since the VE is different. Would that make it a hybrid-hybrid... or a 1/4 speed density tune?

I'm back on the old tune for today for running errands and stuff, but I may go back to ECP and bust some logs tonight for him if I free up. It appears mine will take more work to get it to work right.

 

i can drive to TXS tomorrow and go fully atmospheric BOV again.. haha..

 

I have bov and intake and have limp mode problems sometimes if i let the car idle to long, i am a trifecta dealer what do i need to do to get this

 

nice. thanks!

i'm back on the ecp tune again.
i'm doing en e47 mix now.
we'll see what is said about it. it's pulling well now. i was running straight e85 and apparently there wasn't enough getting there. the power is back after i went half and half.
i was seeing idc flares in my previous logs, but didn't really know it.
hopefully e47 solves that issue.

as far as the hybrid question...i think it just makes your tune more spot on that before.
apparently most of the control was over fuel saturation. not so much the trims which were pumped up to make e85 work. apparently with ecp its easier to see where the trims need to be adjustment so in the end it'll make your original maf sensor tune be that much more accurate.

 

As far as the hybrid portion, yeah that's what I was hearing from him too. I'm all for more accuracy. Right now, the problem is that it's accurately inaccurate. I think that's what Vince was trying to explain to me. It's working, but needs to be tweaked for the VE variations from stock, as well as figuring it exactly how to do that with relation to all the tables that affect the final result.

I went out and busted another log last night. I uploaded it late last night and sent him a message to let him know, so I suppose he'll see it come Tuesday.

After what he's learning from you and others testing it, I imagine my next revision will be several increments closer. I wonder how many others with head/cams are testing this right now.

I have to admit that having somebody common helping a large number of customers has its advantages in the form of a knowledge base. It helps quickly uncover common quirks and helps troubleshoot the root cause of things, since you can quickly see statistical trends with respect to certain conditions, mods, and vehicle platform.

 

true story. i'm looking forward to all the added accuracy for everyone.
i was a smidge past half a tank last night (e85) so I filled it with 93 and even pumped a little extra in once the pump itself clicked.
i should be really close to e47.
he mentioned he'd have to update my tune to e47, so i'll get that on tuesday. no big, since i can just ride my bike to work and leave the car sit.

 

Occasionally he has a good point, but only on occasion.

look at his user name;
it's a good thing he doesn't know how Vince does his thing, becasue if he did, I have a feeling he'd be rattling cages till trifecta tunes were detected.

One of this guys favorite rants are to do with Trifecta.

If he's so high & mighty on his tuning abilities, why is he not offering a "premium" tuning service - because he's like most others;
using technology & software which someone else developed;
he see's gains, and is confident in his abilities;
and anyone not doing the same as him is beneath him.