ok cool, now do I change all of them at the same time or do I work mostly on just the 14.06 and the 12.05 by themselves? once this question gets cleared up I will spend thursday tuning the entire time

 

You can make adjustments however you want. Like I stated, changing the values at 14v and 12v will have a more drastic change at that voltage than the surrounding values will. But the surrounding values will allow you to make smaller changes that affect those voltages.

 

MISFIRE IS GONE!!!!

CAR RUNS LIKE FRIGGIN AWESOME. im pushing 10 psi easliy and this car freaking hauls man. Im officially done with the car. Still getting low 11s for afrs dso I need to lean that mixture up just a little bit and it will be good. But my tune is probably good up till about maybe 14 psi with my 880cc injectors. Thanks guys for helping me out. Now its time to enjoy my car!!! I will still help out with info if anyone needs any.


Oh yeah just for your info my gap was currently at .24 which caused the misfire at 10 psi

.24 is goo for 0-5 psi
.18-.20 is good for 5-10 psi

I gapped them at .20 yesterday compared to having them orginally at .24 I will make a video of my car later today

 

today was an interesting day. It was my G-ma's bday today and she wanted us to go to olive garden which is like 10 mins down the road.

well I was running a little late and took the highway and started boosting and I made 12 psi on my motor.... I didnt even relize it till I got there and checked the peak boost on my gauge, Im surprised I didnt break a rod or something "knock on wood" so tomorrow im going to lower the boost to 9-10 so I can be at least in the safe zone. Still sitting in the 11.1's

 

i hit 15.4 was my highest before my greddy cut me out....

our engines can take a lot more than people think. its just "HOW MUCH" can it take. but it also always depends on your tune...

 

bro this tune is really good im still in the low 11s with afrs, so im wondering what boost level is going to lean out my tune? Unless its rich through out the whole way because im pretty sure roadspike did the tune up to a cerain percentage

 

Drove home from work this morning, figured Id do a quick log. So im in second gear and I WOT and everything goes up smooth unitl about 4200 rpm I get backfire, and I get a really fast knock count so I instantly back off the throttle. I was like oh S*** I either broke a rod or a piston got messed up, then my car idles just fine so theres no engine damage. But my car got a knock count at 14-15 around 210 load, around 4200 rpms. I have the logs right here but my retarded usb extender didnt even log the afrs so that was pretty much of a waste but you can see here...
now my timing is aroun 0 to -1 and on the log the the timing says -4, is that the ecu trying to pull timing to counter act the knocks? so basically I need to go from -1 to -3 or -4 because the ecu already pulled 3 degrees of timing.
so basically it should pull 4 degrees timing all together with me and the ecu correct?

 

Well im think im getting the hang of tweaking out the knocks, I lowered the boost to 7 psi and was able to do a full throttle pull all the way up to redline without any knock lights from 2nd to 4th then went highway speed of 60 at 5th, Got a really good powerband around 5k.

about to increase the boost up to 9-10 and leave it alone from there. And I will post up a log tonight and you guys can tell me how my tune looks so far.

after I get these knocks out the way im going to zero in on these ltfts. They seem pretty good right now just below -+/5 range

 

Depending on how you adjust your ltfts being injector scaling or latency, wont that affect your afrs throughout?

 

I don't think so that just makes the Injectors open and close properly, I think when you scale them that changes the afrs

 

Update doing some more tuning to work out these knocks, I think I know why I keep hitting a knock on like every single pull. I bought an ebay mbc to save money and it had alot of good reviews. Me and the gf went to cici's to get some food, then went to see buried.... do not see that movie it sucks

anyways took her home got some gas, and logged some data. I did a wot pull from 2500 rpms in 3rd gear. I got a quick CEL flash for knock and got a couple of backfires. So I let off the accelerator because I freaked out and pressed the peak boost button and I couldnt believe it.... Im surprised my motor hasnt blown up yet.... well turning down the boost again I think there is something wrong with my mbc

check it out... yup 14 psi

 

i'm scared to death of overboosting.....so many youtube videos where vacuum tubes come off or something and the engine just pops. I wonder what's the deal with the mbc, did you turn it up and it went too far, or has it just changed on it's own? There really shouldn't be any moving parts in there to fail, right?

 

Ive hit 17psi before
lol
Car see's 0-130 all the time also !
Has about 7000 miles of this .
Haha

So hows the build going man ?
I might have a turbo back for sale soon too if you need one !

 

Steven FYI if your afrs are good do not change your injector scaling this will affect your afrs while in boost. How much I'm not sure depends on how much you change them. adjusting latencies will not affect your boosting afrs

 

yeah your right bro, thats pretty much what I need to work on is my latencies, right now my scaling is at 750, it use to be 770. But im liking the low afrs because they fluctuate between 11-11.5. I just need to change up the latency because when I get a cold start going I lean up to 17+ so I have to give it a little gas for it to go to stoich.

cruise right now is at -2.66 for ltfts still want it closer to zero