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Old 08-14-2007, 03:40 PM   #1
varmint007
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Default turn-key Enginuity in-Dash computer

looking for some advice from the Car-PC experts here.

I am getting real lazy about bringing my laptop with me on tuning runs, and I'm constantly wanting to see real-time Knock data - so I'm trying to get a shopping list together for building a hardwired computer right into the car. Then I plan to move the ROMs, logs, etc over wifi or USB drive.

I already have one of these Kenwood Excelon DDX7015
That I'm hoping I can use as a monitor (over s-video) but the touchscreen probably won't help me at all (planning on using wireless keyboard and mouse).

Looking for recommendations for the rest of the hardware. I have a lot of experience building PCs but never for a car.

What kind of budget am I looking at to do it right?

Also, this seems to be a pretty good market for some of you hardware geeks with time on your hands. Build a standalone unit exclusively for tuning, keep the price down (maybe south of $700) and it would sell.
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Old 08-14-2007, 05:00 PM   #2
06rexwagon
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Subscribed because I want to see where this goes.
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Old 08-14-2007, 05:11 PM   #3
mxturboracer86
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I have some computer connections i might be able to hit up... Actually that wouldnt be a bad idea to do something of that sort, I'll see what i can find for parts and making something cheap that would incorporate everything anyone would need...I think the best part would be the convince of map switching w/o a laptop to carry around...would compliment my anti-lag map that i'm working on pretty well
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Old 08-14-2007, 05:19 PM   #4
the_colombian
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my friend makes kits. www.carpc4u.com
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Old 08-14-2007, 05:43 PM   #5
varmint007
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Quote:
Originally Posted by the_colombian View Post
my friend makes kits. www.carpc4u.com
cool - the whole box with screen for about $700 seems reasonable.

After doing some digging I found a barebones version for $360

I already have RAM, a laptop HD, and screen - this may be cheaper than I thought...
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Old 08-14-2007, 05:45 PM   #6
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I would love to see a ready-made solution customized for our application. Varmint007 -- if knock is the primary thing you are interested, you could do what some of us have done. I have a KnockLink which has 5 LEDs that light up depending on severity of knock: two green, two amber, one red. I have these wired to remote LEDs hidden in the center console dash vent, and also have wired the final red LED to fire a really annoying buzzer (low voltage high db Radio shack buzzer) that is also hidden in the dash vent.
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Old 08-14-2007, 06:17 PM   #7
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Quote:
Originally Posted by scooterforever View Post
I would love to see a ready-made solution customized for our application. Varmint007 -- if knock is the primary thing you are interested, you could do what some of us have done. I have a KnockLink which has 5 LEDs that light up depending on severity of knock: two green, two amber, one red. I have these wired to remote LEDs hidden in the center console dash vent, and also have wired the final red LED to fire a really annoying buzzer (low voltage high db Radio shack buzzer) that is also hidden in the dash vent.
Yeah, I've almost gone that route, but I really need to see *where* the knock happens (load and rpm) in order to tweak timing. Plus I'm addicted to seeing the Enginuity Logger dashboard for a handful of other values like: IAT, manifold, boost error, MAF, CL/OL, AF correction, etc...

If someone does start selling a Hardware tuning solution like this, it would be a cool way to pay the Enginuity team back. A portion of the proceeds should go to them. They could also have a paid support option.
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Old 08-14-2007, 07:00 PM   #8
mxturboracer86
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Only problem i'm finding whether you do the building per mini-box or thru that guys friend's company.... with all the hardware req even if you do it yourself, you are talking $700-$900 total for this option (retail) depending on how cheap you can get everything you need. Most people who have an interest in doing open sopurce arent going to want to pay that, although there are many advantages and it can be incorporated into other standalone systems. Those thoughts aside I still like that idea and am going to look more into it as a marketable tuning solution to come out upon opening up my shop, b/c like i said it can be incorporated into more than just open source tuning.

-side note- For that price it'll be set-up so you can play DVD's, CD's, and do more than just tune... might as well put it to good use the other half of the time.
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Old 08-14-2007, 09:34 PM   #9
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Quote:
Originally Posted by varmint007 View Post
Yeah, I've almost gone that route, but I really need to see *where* the knock happens (load and rpm) in order to tweak timing.
There are a couple of ways to do that (but I hear you on your concerns). From a KnockLink perspective, you can do two things:

1. hook one or more of the LEDs up to a relay that will throw a <5v amount of voltage to an analog logger like the LM-1 (you can use a voltage divider circuit to reduce the normal 12v + to a voltage between 0 and 5v); or
2. assuming that you have removed the stock EGT probe, and that the ECU reads 0-5 volts to calculate EGTs (not sure about this, but I think that is what it does), you could splice the KnockLink with a relay to send a certain amount, say 2 volts, to the EGT signal line. That way you could log EGTs with enginuity, and use that to detect knock.

I followed approach #1. Here's is an example of how I was logging knock. In this particular case, I was having knock on the shift. This was with my old block, which [literally] knocked itself apart. I have a rod as a paperweight now. With the 4EATs, the ECU handles the shift by cutting fueling, and with this tune I had a lean spot on the shift. Boost is maintained through the shift with 4EATs.

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Old 08-15-2007, 10:37 AM   #10
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Originally Posted by scooterforever View Post
my old block, which [literally] knocked itself apart. I have a rod as a paperweight now.
Ouch - I bet your new block will hold up much better!

That looks like very high RPM knock, which doesn't need much time to kill a motor. How long did it take?
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Old 08-29-2007, 07:38 PM   #11
LathanM
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I was thinking on doing the same thing then I picked up a Samsung Q1. You can find them new for $700 if you don't go overboard with the features. Used for about $600. It handles everything a laptop does in a more manageable package.
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Old 10-28-2007, 03:00 AM   #12
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I can assist anyone that is looking for a CarPC solution, be it for tuning or anything else you would like it to do. The barebone system that you provide a link for is a barebone system and it uses a cheap motherboard that people have had problems with. I use only Via motherboards on all my systems and they have not failed me nor given me any trouble. You also have to think that for that price, you're only getting a case, power supply, and a cheap motherboard.

If any of you are interested in a CarPC for tuning purposes, I can help you out. Just send me a PM. If you already have some of the parts, you can send them to me and you can avoid that part of the hardware.
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Old 10-28-2007, 09:48 AM   #13
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Old 10-29-2007, 06:27 AM   #14
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They are working on a version of the PSI3 that has OBDII pass through so that you can hook up to a pc aswell. But, this does not solve the OP request.
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Old 10-29-2007, 10:38 AM   #15
varmint007
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Quote:
Originally Posted by dynamix View Post
They are working on a version of the PSI3 that has OBDII pass through so that you can hook up to a pc aswell. But, this does not solve the OP request.
well it gets part of the way there...pretty cool to be able to monitor a bunch of values with a single DIN device. I never knew that existed.
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Old 10-29-2007, 11:51 AM   #16
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It is cool but it could/should be so much better if they could save the logs from it and download them onto say an SD card for later proper analysis.
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Old 10-29-2007, 01:00 PM   #17
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Quote:
Originally Posted by dynamix View Post
It is cool but it could/should be so much better if they could save the logs from it and download them onto say an SD card for later proper analysis.
Agreed - there's no way to pull logs from it?
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Old 10-29-2007, 01:14 PM   #18
The Deliverator
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I've been thinking about this for a while.

How about: http://www.fit-pc.com/new/
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Old 10-29-2007, 04:18 PM   #19
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Quote:
Originally Posted by The Deliverator View Post
I've been thinking about this for a while.

How about: http://www.fit-pc.com/new/
wow $295 is cheap!
comes with Gentoo preinstalled, but I supposed it would be easy enough to install XP.
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Old 10-29-2007, 04:38 PM   #20
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Quote:
Originally Posted by varmint007 View Post
wow $295 is cheap!
comes with Gentoo preinstalled, but I supposed it would be easy enough to install XP.
My vision for this doesn't necessarily involve reflashing- I'd actually like to write a program that perpetually collects logs.

I guess you could also slap a small lcd into the dash and use it to flash as well, but I prefer to use a laptop for that- would hate for a bad battery or voltage gremlin to brick my ecu.
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Old 10-29-2007, 09:00 PM   #21
varmint007
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Quote:
Originally Posted by The Deliverator View Post
My vision for this doesn't necessarily involve reflashing- I'd actually like to write a program that perpetually collects logs.

I guess you could also slap a small lcd into the dash and use it to flash as well, but I prefer to use a laptop for that- would hate for a bad battery or voltage gremlin to brick my ecu.
I'd like to see a hardware/software combo that just simplifies the whole tuning process... Perpetual logging and interesting idea, then when you're done driving, the ability to scroll through some pre-built graphs of your drive.

Also, we certainly need real-time monitoring of the key variables, wifi to deliver the logs to your home network, and it might as well have all the other bells and whistles of a carpc (DVD playing, GPS, mp3, 3G card, full time internet to pull up google to settle arguments while driving , etc..)
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Old 10-30-2007, 01:16 PM   #22
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Get a docking station for your laptop and a touch screen.
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Old 10-30-2007, 01:33 PM   #23
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Quote:
Originally Posted by Freon View Post
Get a docking station for your laptop and a touch screen.
that would work if I had a dedicated laptop, but I use my work laptop for tuning, so I'd have to set it up / break it down each time...
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Old 11-11-2007, 01:20 AM   #24
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I'm looking at doing this as well, but I've still got a ton of research to do both in opensource tuning and carpc building.

You have found www.mp3car.com right? Tons of carpc info floating around the forums there, and some decent kits as well. Just not so much on the tuning end of it, yet.


DG
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Old 11-11-2007, 02:53 AM   #25
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For deltadash users, just released these free gauge packs...

http://www.quickflashtuning.com/ddgauges.shtml

Last edited by thechoochman28; 11-17-2007 at 12:35 PM. Reason: better link
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