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Showing results 91 to 120 of 178
Search took 0.01 seconds; generated 99 minute(s) ago. Search: Posts Made By: arghx7
Forum: Software Tuning 10-17-2013, 07:10 PM
Replies: 41
Views: 13,713
Posted By arghx7
Your mom named you Atla?

Your mom named you Atla?
Forum: Software Tuning 10-16-2013, 08:36 PM
Replies: 41
Views: 13,713
Posted By arghx7
Way back in the day the actual software code was...

Way back in the day the actual software code was written in a language like C. Over the past 10-15 years everything has moved towards Matlab. So basically, somebody inside Toyota or Subaru or...
Forum: Software Tuning 10-10-2013, 09:23 PM
Replies: 19
Views: 14,333
Posted By arghx7
I've given this explanation in other threads. ...

I've given this explanation in other threads. Here's how enrichment delay timers really started. When the vehicle is being certified for fuel economy and emissions for the US market, it has to be...
Forum: Software Tuning 10-05-2013, 12:43 AM
Replies: 12
Views: 7,052
Posted By arghx7
Well the AFR reading is useless. It's at the...

Well the AFR reading is useless. It's at the cruising/idling AFR under "current" and the "Max" is from deceleration fuel cut.

It looks like the knock control system is consistently retarding...
Forum: Engine, Exhaust, Transmission 10-04-2013, 09:51 PM
Replies: 33
Views: 8,857
Posted By arghx7
Considering how low the production volume is, I...

Considering how low the production volume is, I was honestly stunned at how quickly the aftermarket for this car has grown. Lots of products are going to fail in the marketplace. That's how markets...
Forum: Software Tuning 09-24-2013, 10:13 PM
Replies: 61
Views: 35,105
Posted By arghx7
Short answer: don't worry about it, only an...

Short answer: don't worry about it, only an emissions lab would ever be able to tell.

Detailed answer: The only thing you as an enthusiast would care about is whether it throws a code, whether it...
Forum: Engine, Exhaust, Transmission 09-20-2013, 08:24 PM
Replies: 72
Views: 230,655
Posted By arghx7
So Toyota is introducing a new generation D-4S...

So Toyota is introducing a new generation D-4S system. I'm not sure exactly which engines it will end up on. The main differences are a high tumble port and a single fan-shaped spray designed to...
Forum: Software Tuning 09-20-2013, 08:09 PM
Replies: 61
Views: 35,105
Posted By arghx7
Just to clarify, and I'm not sure how the units...

Just to clarify, and I'm not sure how the units in the ECU were originally done here, but the exhaust cam phaser retards the closing timing and the intake cam phaser advances the intake opening...
Forum: Engine Swaps 09-19-2013, 10:26 PM
Replies: 77
Views: 43,116
Posted By arghx7
Two main comments: 1) swapping in this motor...

Two main comments:

1) swapping in this motor makes no financial sense
2) despite that, the FA20T is much, much better designed for a turbo than the engine in the BRZ



People complain about...
Forum: Software Tuning 09-14-2013, 06:41 PM
Replies: 237
Views: 103,719
Posted By arghx7
Sure, and a missfire can be caused by a lot of...

Sure, and a missfire can be caused by a lot of things. You can get a better idea of what's going on by looking at the CO% and combustion metrics. High CO could mean a rich misfire, low CO could...
Forum: Software Tuning 09-14-2013, 03:23 PM
Replies: 237
Views: 103,719
Posted By arghx7
http://img201.imageshack.us/img201/6026/jpicsexiad...

http://img201.imageshack.us/img201/6026/jpicsexiaduvysym3hmm.gif
Forum: Software Tuning 09-14-2013, 01:07 PM
Replies: 237
Views: 103,719
Posted By arghx7
I'm going to make a highly technical argument...

I'm going to make a highly technical argument here that most people are not going to follow. It's an argument based on firsthand experience with Bosch, NGK/NTK, Denso (like the stock FT86 sensor),...
Forum: Engine, Exhaust, Transmission 08-28-2013, 11:47 PM
Replies: 29
Views: 5,119
Posted By arghx7
Ok, assume for discussion's sake that the FA20...

Ok, assume for discussion's sake that the FA20 can stand up to whatever cylinder pressure you throw at it as long as it doesn't experience heavy knock or preignition. That is, durability isn't an...
Forum: Engine, Exhaust, Transmission 08-20-2013, 10:00 PM
Replies: 18
Views: 12,135
Posted By arghx7
Visconti and FA20 are doing the best they can...

Visconti and FA20 are doing the best they can with the limited amount of data they have on individual engines. If they overdo the cold temperature starting compensation, you will at the very least...
Forum: Engine, Exhaust, Transmission 08-14-2013, 02:43 PM
Replies: 19
Views: 9,791
Posted By arghx7
Fuel cut is fastest, throttle closing is slowest,...

Fuel cut is fastest, throttle closing is slowest, and spark retard is in the middle.
Forum: Other Vehicles & General Automotive Discussions 08-03-2013, 09:29 AM
Replies: 965
Views: 321,517
Posted By arghx7
Funny how this forum has the little "mentions"...

Funny how this forum has the little "mentions" thing which basically begs you to jump into some thread.



So what I'm hearing here is a debate: does a richer mixture under heavy load preserve...
Forum: Forced Induction 07-27-2013, 06:30 PM
Replies: 51
Views: 27,280
Posted By arghx7
Go to page 15 of the product instructions...

Go to page 15 of the product instructions http://www.aemelectronics.com/Images/Products/Installation%20Instructions%2030-4900.pdf and it will show you how to wire up the gauge so that it interrupts...
Forum: Engine, Exhaust, Transmission 07-22-2013, 08:15 AM
Replies: 69
Views: 23,843
Posted By arghx7
If you're running US 91 octane, it may really be...

If you're running US 91 octane, it may really be audible knock. I can pretty much guarantee this engine was designed for Japanese fuel, which is 98 or 100 RON, or US certification fuel which is 97...
Forum: Engine, Exhaust, Transmission 07-21-2013, 11:16 PM
Replies: 69
Views: 23,843
Posted By arghx7
http://www.ft86club.com/forums/attachment.php?atta...

http://www.ft86club.com/forums/attachment.php?attachmentid=45160&stc=1&d=1374459389



I don't know the exact formula your Torque app uses, but the only way it could work is by taking some kind...
Forum: Engine, Exhaust, Transmission 07-14-2013, 09:03 PM
Replies: 13
Views: 9,582
Posted By arghx7
I don't know all the specifics of the FA20 knock...

I don't know all the specifics of the FA20 knock control. I assume it's not that different from all the other Subaru stuff--all signs seem to point that way. The Rom Raider links explain how the...
Forum: Engine, Exhaust, Transmission 06-26-2013, 08:10 PM
Replies: 7
Views: 6,256
Posted By arghx7
Ok guys, time for a little lesson about stock...

Ok guys, time for a little lesson about stock tunes, especially those complying with US regulations.

There is a chassis dyno test cycle called the US06:
...
Forum: Software Tuning 06-22-2013, 11:24 AM
Replies: 205
Views: 68,820
Posted By arghx7
Again, I'd hesitate to call myself an expert but...

Again, I'd hesitate to call myself an expert but I've never seen a "flash count" on a dealership tool or OEM tuning tool. Does somebody have any proof that this even exists in anything other than...
Forum: Engine, Exhaust, Transmission 06-22-2013, 09:35 AM
Replies: 6
Views: 5,926
Posted By arghx7
In the old days, the "shift kit" manipulated the...

In the old days, the "shift kit" manipulated the hydraulics in the valve body. Basically, it ramped up pressure so that shifts were faster and firmer. Old valve bodies were totally run of vacuum,...
Forum: Software Tuning 06-22-2013, 09:25 AM
Replies: 205
Views: 68,820
Posted By arghx7
Having used the commercial-grade OEM tools...

Having used the commercial-grade OEM tools (Caldesk, INCA, etc) and certain in-house tools I can say that I can EASILY see if anyone has changed something from the production calibration.

First,...
Forum: Engine, Exhaust, Transmission 06-19-2013, 10:41 PM
Replies: 378
Views: 144,776
Posted By arghx7
I'm still here. All I'll have to say is, direct...

I'm still here. All I'll have to say is, direct injection has some additional durability challenges compared to PFI. I'm sure we'll sort through these in the next year or two; it's normal for a new...
Forum: Engine, Exhaust, Transmission 05-19-2013, 12:32 PM
Replies: 17
Views: 9,470
Posted By arghx7
You'd be surprised how many new engines run like...

You'd be surprised how many new engines run like this. It's not just an FA20 thing. It's to maximize gas mileage and sense the octane level.
Forum: Engine, Exhaust, Transmission 05-16-2013, 11:23 AM
Replies: 18
Views: 11,224
Posted By arghx7
The Mazdaspeed 3 engine could be considered an...

The Mazdaspeed 3 engine could be considered an early generation GDI system. It uses swirl injectors. Newer GDI runs up to about 20MPa, similar to what OP is seeing (3000psi=almost 21MPa).

The...
Forum: Engine, Exhaust, Transmission 05-05-2013, 09:51 PM
Replies: 32
Views: 24,754
Posted By arghx7
I just saw your update. To make a long story...

I just saw your update.

To make a long story short, there's a very good chance those A & B closed loop targets are there for emissions purposes. Basically, you have to offset the target AFR based...
Forum: Engine, Exhaust, Transmission 05-04-2013, 03:58 PM
Replies: 32
Views: 24,754
Posted By arghx7
The long period of closed loop (i.e. near...

The long period of closed loop (i.e. near stoichiometric) is for fuel economy and CO emissions. You'll see more and more of that as time goes on, especially on engines that have been designed to...
Forum: Software Tuning 04-25-2013, 04:45 PM
Replies: 41
Views: 16,120
Posted By arghx7
I'm not sure where that drive cycle came from...

I'm not sure where that drive cycle came from (maybe some service manual somewhere). Every diagnostic monitor is different. Some are continuous monitors, like misfire, and some aren't, like the...
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