Official OpenFlash Tablet FA20 Tuning Tech Discussion Thread

[cjsporl1996]

Originally Posted by shiv@vishnu

We are using the standard 9-10psi pulley with our OFT300 kit/tune. If you are at sea level, I wouldn't necessarily recommend running smaller pulleys. Those at altitude can get away with it since they start off at a pressure disadvantage anyway. At sea level, the standard pulley gives plenty of overhead to run more boost (i'd guess 12-13psi). Definitely more than I would suggest running on pump gas.

Do you have any recommendations on what dual catch can setup to run. I was looking at this one kit ( I forget who makes it) and its about 400 bucks for a dual set. @jamesm

[jamesm]

Originally Posted by shiv@vishnu

It's better for you, not necessarily better.

Curious... do the Vortech cars running on E85 have upgraded injectors/fuel pump?

yes, they do (at least the ones i've personally come into contact with have).

i don't think anyone would argue that a MAF is better at WOT than SD. i don't think you would either if OFT supported it. more calibration points make for a tighter curve that's easier to dial in, and you're well aware of that.

[jamesm]

Originally Posted by cjsporl1996

Do you have any recommendations on what dual catch can setup to run. I was looking at this one kit ( I forget who makes it) and its about 400 bucks for a dual set. @jamesm

i use rev works' dual vented can and it's great. no junk in my intake, good price, looks nice.

[Grip Ronin]

has anyone located closed loop timing adjustment?

[Shiv@Openflash]

Originally Posted by jamesm

yes, they do (at least the ones i've personally come into contact with have).

i don't think anyone would argue that a MAF is better at WOT than SD. i don't think you would either if OFT supported it. more calibration points make for a tighter curve that's easier to dial in, and you're well aware of that.

Many experienced tuners would suggest MAF is inherently better than SD. Including most OEM engine calibrators. At my time doing some contract work for Toyota and GM, I talked with other calibrators on this subject. And we all share a common opinion. The key to MAF implementation is proper location and sizing. Most tuners/kit builders don't pay enough time to that and sure, they get poor results. Then convert to MAP and go... wow, this is so much better. But that is more a reflection of their MAF implementation than anything else.

At my time with the engineers at Vortech, they also went to great lengths to implement MAF properly. They ended up relocating to the longest section of intercooler pipe which had sufficiently straight length on either side of the MAF element. Even though this required an extension harness. And they also tried a number of diameters until they found one that works well while still providing sufficient overhead. Compared to the efforts of some other sc/turbo kit designs I've seen, I think they stand out from the crowd. Perhaps other kits were designed with the intention of going SD so didn't really care too much about MAF placement.

I know you have your opinions. But please recognize that is just what they are. Opinions. You like to state them as fact and while you may believe them to be so, they will likely change the more you do this. I've revised my opinions several times over the last 20 years doing this stuff. And I'm sure I'll revise them again over the next 20 years.

Shiv

[cjsporl1996]

@shiv@vishnu @nelsmar @DeliciousTuning @jamesm

http://datazap.me/u/cjsporl/test-run...&data=1-2-8-12

opinion please

[Cross]

Originally Posted by cjsporl1996

@shiv@vishnu @nelsmar @DeliciousTuning @jamesm

http://datazap.me/u/cjsporl/test-run...&data=1-2-8-12

opinion please

You didn't ask me but I have a few questions and thoughts for you.
1) Did you just flash this and then go out and make these pulls?
2) I notice it registers the TPS at 98.x% at one point and then through the other gears 90.x%... I never checked that on mine honestly but I noticed it and wondered why it was doing that for you. I will go check a few of my logs.
3) What fuel is this?
4) What tune is this? If an OTS Map (which I assume) has it been modified?

You don't seem to be showing any Knock Correction (Steady at .02) and I don't see IAM but it does appear in the first run up to be in the 12's from 12.4 down which is ok, the rest are at 11.4 or so which I find a little rich but certainly safe. (I personally like 12.4 or so on E85 N/A)

I would like to see the STFT to see if its learning and correcting an issue. Although I don't see an issue its showing changes in AFR from what I am guessing is first gear to the other gears. There doesn't appear to be knock which is why I asked if this was just flashed and the car is just learning the parameters now or if there could be something deeper to look at.


Again just some observations I am sure the others can give you more from it.

[cjsporl1996]

Originally Posted by Cross

You didn't ask me but I have a few questions and thoughts for you.
1) Did you just flash this and then go out and make these pulls?
2) I notice it registers the TPS at 98.x% at one point and then through the other gears 90.x%... I never checked that on mine honestly but I noticed it and wondered why it was doing that for you. I will go check a few of my logs.
3) What fuel is this?
4) What tune is this? If an OTS Map (which I assume) has it been modified?

You don't seem to be showing any Knock Correction (Steady at .02) and I don't see IAM but it does appear in the first run up to be in the 12's from 12.4 down which is ok, the rest are at 11.4 or so which I find a little rich but certainly safe. (I personally like 12.4 or so on E85 N/A)

I would like to see the STFT to see if its learning and correcting an issue. Although I don't see an issue its showing changes in AFR from what I am guessing is first gear to the other gears. There doesn't appear to be knock which is why I asked if this was just flashed and the car is just learning the parameters now or if there could be something deeper to look at.


Again just some observations I am sure the others can give you more from it.

The tune is the 1.55 UEL stage 2 gas tune

I have been running this for several weeks or at least the day it came out.

The gas is shell 93 v power mixed with 3 gallons of 92 octane wawa brand.

[Cross]

Originally Posted by cjsporl1996

The tune is the 1.55 UEL stage 2 gas tune

I have been running this for several weeks or at least the day it came out.

The gas is shell 93 v power mixed with 3 gallons of 92 octane wawa brand.

Ok so your on gas so if there was an issue concerning knock we should have seen it but do you mind a log showing STFT and IAM? (on top of what you are already logging)

[cjsporl1996]

Originally Posted by Cross

Ok so your on gas so if there was an issue concerning knock we should have seen it but do you mind a log showing STFT and IAM? (on top of what you are already logging)

I can only log 12 channels. Which 2 should I remove?

[Cross]

Originally Posted by cjsporl1996

I can only log 12 channels. Which 2 should I remove?

NM I don't use Datazap, I thought the grayed out ones meant they were not logged not that I could click them to see the data. Neat, that's a nice setup Anyway let me look it back over.

Ok the IAM stays at 1.0 and the STFT is making no changes so with some tweaking you could find a little more power bringing up the AFR but since I am using E85 not 91 (all we have here) I can only speculate based off 91 and using it in my Corvette in which case again 12.4 seems to be a sweet spot for it. So you could lean it out a little and maybe tap into a little more power but looking over those two I don't see the PCM trying to make any adjustments for issues its seeing other than that very beginning point where you first give it throttle input going WOT.
Now that could be a spot you could tweak slightly or just the conditions for which you are currently in weather wise and IAT before you are moving. I believe 5.4 was the biggest change for a brief second on that tip in so it can be better but honestly again then your playing with variables such as IAT from sitting, etc that can be hit or miss. I think you look good.

[cjsporl1996]

@shiv@vishnu

Shiv, when you have a chance can you please send me that dev file. I sent you an email a couple days ago I believe
Thank You

[Shiv@Openflash]

Originally Posted by cjsporl1996

@shiv@vishnu

Shiv, when you have a chance can you please send me that dev file. I sent you an email a couple days ago I believe
Thank You

I don't know your real name based on your user name. So I don't know who you are unfortunately. Can you please email me again?

[cjsporl1996]

Originally Posted by shiv@vishnu

I don't know your real name based on your user name. So I don't know who you are unfortunately. Can you please email me again?

I sent the email again

Subject name: Vortech dev file cjsporl