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Showing results 151 to 178 of 178
Search took 0.01 seconds; generated 99 minute(s) ago. Search: Posts Made By: arghx7
Forum: Engine, Exhaust, Transmission 07-07-2012, 07:35 PM
Replies: 59
Views: 24,998
Posted By arghx7
Kinda hard to compare a bunch of unproven...

Kinda hard to compare a bunch of unproven aftermarket parts and some vaporware version from Subaru
Forum: Engine, Exhaust, Transmission 07-06-2012, 09:28 AM
Replies: 12
Views: 7,005
Posted By arghx7
Where can I get this technology which measures...

Where can I get this technology which measures the mass of an object shown in a .jpg file?
Forum: Engine, Exhaust, Transmission 07-04-2012, 07:32 PM
Replies: 3
Views: 11,353
Posted By arghx7
check engine/CEL/DTC/MIL code list

You guys might find it useful... it is for the engine only.
Forum: Engine, Exhaust, Transmission 07-02-2012, 11:52 AM
Replies: 37
Views: 13,003
Posted By arghx7
low volume sports car bro. do the math.

low volume sports car bro. do the math.
Forum: Software Tuning 07-02-2012, 11:49 AM
Replies: 302
Views: 129,557
Posted By arghx7
I'm sure the biggest reason for that level of...

I'm sure the biggest reason for that level of enrichment is to protect the cat(s). Remember how the max estimated cat temperature was about 850C near redline? If you lean the mixture out, power goes...
Forum: Engine, Exhaust, Transmission 06-26-2012, 12:42 AM
Replies: 4,525
Views: 1,499,175
Posted By arghx7
20 mega pascal is about right for peak pressure...

20 mega pascal is about right for peak pressure on a modern system with side-mount injection. Systems with center mounted injectors will go a lot higher. The fuel pressure is trending higher to meet...
Forum: Engine, Exhaust, Transmission 06-25-2012, 09:58 PM
Replies: 70
Views: 26,952
Posted By arghx7
One thing to keep in mind is that an ECU really...

One thing to keep in mind is that an ECU really consists of 3 things:

1) Hardware (injector drivers, analog inputs, CAN communication, processor, RAM, flash ROM, etc)
2) Software (the way things...
Forum: Engine, Exhaust, Transmission 06-23-2012, 11:49 AM
Replies: 52
Views: 24,673
Posted By arghx7
...or increase friction and reduce fuel economy

...or increase friction and reduce fuel economy
Forum: Software Tuning 06-23-2012, 11:47 AM
Replies: 302
Views: 129,557
Posted By arghx7
Thanks for your continued efforts. The more...

Thanks for your continued efforts. The more useful data we can get, the better we can understand the engine. I'm still waiting on the emissions and fuel economy certification filing so we can try...
Forum: Engine, Exhaust, Transmission 06-22-2012, 09:27 PM
Replies: 6
Views: 6,097
Posted By arghx7
sounds like a panic stop mode for ex Prius drivers

sounds like a panic stop mode for ex Prius drivers
Forum: Engine, Exhaust, Transmission 06-21-2012, 11:55 PM
Replies: 70
Views: 26,952
Posted By arghx7
You could broadly categorize the modern...

You could broadly categorize the modern strategies as having two types: those with an MBT calculation/lookup, and those without. Subaru traditionally doesn't use an MBT calculation. MBT = Minimum...
Forum: Engine, Exhaust, Transmission 06-21-2012, 12:17 AM
Replies: 4,525
Views: 1,499,175
Posted By arghx7
My advice is, do some basic calculations but...

My advice is, do some basic calculations but focus on the prototypes. Start with the designs that are closest to factory in terms of length etc, and move on from there.

I work in the industry...
Forum: Software Tuning 06-16-2012, 09:39 AM
Replies: 302
Views: 129,557
Posted By arghx7
Attach the .csv files you have saved. I want to...

Attach the .csv files you have saved. I want to take a look at some of this stuff.

I am curious which load PID Evoscan is reading. It looks like it might be Calculated Load, not absolute load...
Forum: Forced Induction 06-13-2012, 10:21 PM
Replies: 34
Views: 19,137
Posted By arghx7
Minimal benefits on a naturally aspirated...

Minimal benefits on a naturally aspirated application.
Forum: Engine, Exhaust, Transmission 06-09-2012, 06:54 PM
Replies: 4
Views: 17,315
Posted By arghx7
short answer: The FA20 appears to have a 9 heat...

short answer: The FA20 appears to have a 9 heat range, while the Lexus IS350 2GR-FSE engine appears to have a 6. A 9 is significantly colder than what you would find on an STi or a Supra from the...
Forum: Engine, Exhaust, Transmission 06-09-2012, 01:17 AM
Replies: 94
Views: 150,637
Posted By arghx7
The owner's manual has some basic explanations to...

The owner's manual has some basic explanations to get you started in understanding the vehicle dynamics systems:

http://www.ft86club.com/forums/attachment.php?attachmentid=8319&stc=1&d=1339215394...
Forum: Engine, Exhaust, Transmission 06-08-2012, 07:40 PM
Replies: 17
Views: 10,296
Posted By arghx7
Those charts are just basic guidelines. There's...

Those charts are just basic guidelines. There's a number of special procedures for an individual vehicle to determine the coefficients. You can just use the emissions certification coefficients and...
Forum: Engine, Exhaust, Transmission 06-06-2012, 11:26 PM
Replies: 88
Views: 60,054
Posted By arghx7
The only individual electronic throttlebodies in...

The only individual electronic throttlebodies in use for street cars that I can think of are on high end engines like what you find on the S65 engine for for BMW E60 M5 or the 1LR-GUE engine for the...
Forum: Engine, Exhaust, Transmission 06-04-2012, 05:41 PM
Replies: 82
Views: 60,389
Posted By arghx7
I spoke to an industry person who is an expert on...

I spoke to an industry person who is an expert on such matters as this, a person I greatly respect whose knowledge exceeds my own. He in essence agrees with Dimman:



It's not so much a...
Forum: Engine, Exhaust, Transmission 05-30-2012, 07:19 PM
Replies: 72
Views: 230,655
Posted By arghx7
Here's the chart in question: ...

Here's the chart in question:

http://www.ft86club.com/forums/attachment.php?attachmentid=7801&stc=1&d=1338416188

At very high rpm the most important thing they are going to do is try and keep...
Forum: Engine, Exhaust, Transmission 05-22-2012, 10:40 AM
Replies: 54
Views: 22,499
Posted By arghx7
We know it's a 4-wire sensor, and it's highly...

We know it's a 4-wire sensor, and it's highly likely that it's Denso limiting-current type wideband. This is, generally speaking, not quite as accurate as the latest Bosch sensors, but not a...
Forum: Engine, Exhaust, Transmission 05-20-2012, 04:55 PM
Replies: 72
Views: 230,655
Posted By arghx7
Below are charts out of a very recently published...

Below are charts out of a very recently published study from the Sloan Automotive Laboratory at MIT. The study examines the cooling effects of direct injection under high load operation. The study...
Forum: Engine, Exhaust, Transmission 05-20-2012, 04:37 PM
Replies: 5
Views: 10,197
Posted By arghx7
Spraying fuel on the back of the valves wastes...

Spraying fuel on the back of the valves wastes much of the cooling effect of the fuel. The fuel cools the valve even more during cold starts, which inhibits vaporization. When the fuel doesn't...
Forum: Other Vehicles & General Automotive Discussions 05-09-2012, 02:23 PM
Replies: 62
Views: 34,197
Posted By arghx7
People assume that just because VW and some other...

People assume that just because VW and some other early adopters of mass production DI had valve deposit problems, they all must have valve deposit problems. There are a lot of different air/oil...
Forum: Engine, Exhaust, Transmission 04-29-2012, 03:00 PM
Replies: 61
Views: 45,194
Posted By arghx7
On the surface, it certainly seems like turning...

On the surface, it certainly seems like turning fewer rpms would yield fuel economy benefits on the highway. And it might in certain situations. But I'm not sure where you get an additional 5mpg...
Forum: Engine, Exhaust, Transmission 04-11-2012, 07:23 PM
Replies: 762
Views: 215,828
Posted By arghx7
Well as far as squish zones go, below are squish...

Well as far as squish zones go, below are squish zones on some well-known port injected engines from tdifferent angles. Here's the taper squish zones on a 1ZZ engine:
...
Forum: Engine, Exhaust, Transmission 04-10-2012, 10:32 PM
Replies: 762
Views: 215,828
Posted By arghx7
You could call tumble, swirl, and squish flows...

You could call tumble, swirl, and squish flows all forms of charge motion. A squish flow is basically a concentrated area of mixture.
Forum: Engine, Exhaust, Transmission 01-08-2012, 03:40 PM
Replies: 72
Views: 230,655
Posted By arghx7
Post Technical information on the Toyota D-4S system

I would like to present here in-depth technical information on the Toyota gasoline direct injection (GDI) systems up through the development of the 2GR-FSE engine found in the Lexus IS350. I am...
Showing results 151 to 178 of 178
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