ECUs and Tuning Discuss Engine Management, Tuning, & Programming

harbor freight det can

Old 06-17-2013, 08:10 AM
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Default harbor freight det can

anyone try this?

just found the video on building a electronic det can and it looked interesting.

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Old 06-25-2013, 10:14 PM
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I am probably going to HF tomorrow and if I see the device he was using I might pick it up and built me a set.
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Old 06-26-2013, 12:41 PM
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This looks incredibly awesome. I may just buy one of these and play with it..
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Old 06-26-2013, 05:40 PM
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I can't find item#95635.
Though I found item#95653:
http://www.harborfreight.com/digital...ope-95653.html
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Old 06-26-2013, 06:26 PM
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Looks like the exact same thing, probably a typo. That's the right tool it looks like.

Now.. can I use this with my OEM 99 knock sensor in the stock location? or should i buy a bosch sensor like he has done? Whatever would work better is what I want to use.
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Old 06-26-2013, 08:40 PM
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I knew I should have kept the knock sensor from my junk motor....

Will be trying this
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Old 06-27-2013, 04:29 PM
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Recording of said det can. Man that sounds crystal clear. Ordering some parts now.. What kind of resistors do I need to turn down the volume/sensitivity like he did there?

Found a gosh dang internet forum thread about it. how about that.

http://www.----------------------/fo...html#msg216496

Why in gods name does it censor that URL? Here, it's this URL but without the space:

real homemadeturbo.com/forum/index.php/topic,22257.msg216496.html#msg216496

---------------------- LOL that website URL is just censored on this forum. Classic mt.net. Just like when the word drifting used to be censored.
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Old 07-01-2013, 08:06 AM
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because that site cost Rick lots of money and heartache.
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Old 07-02-2013, 02:48 PM
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Originally Posted by Braineack
because that site cost Rick lots of money and heartache.
I guess I missed that. I do love a good story though, go on..
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Old 07-02-2013, 03:32 PM
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real home made turbo is a copied database of homemadeturbo.com, a site that Forumedia Inc. purchased. it sprung up after said purchase, which was a violation of the terms of the sale. along with it, pretty much 80% of the users left hmt and went to rhmt.com. hmt.com more or less died, sad face ensued.
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Old 07-02-2013, 08:49 PM
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Not to stir the pot, but I think there is more to the story than that. People didn't jump ship for no reason...
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Old 07-02-2013, 09:43 PM
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Here is the link to the Digital Diagnostic Stethoscope. I am going to pick up the set on July 4th with my 25% off coupon.
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Old 07-04-2013, 12:04 AM
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Originally Posted by shuiend
Here is the link to the Digital Diagnostic Stethoscope. I am going to pick up the set on July 4th with my 25% off coupon.
sub'ed
Keep us updated on the build.
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Old 07-04-2013, 01:02 AM
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I, too, plan on buying one.
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Old 07-04-2013, 01:32 AM
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Bought mine 2 or so says ago. still going to need this audio cable he's using though.
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Old 07-04-2013, 02:51 AM
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Any chance of you possibly coming up with a rough schematic of the device?
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Old 07-05-2013, 06:41 PM
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Got one on its way now. Someone else building one of these please document as you do. If I build mine before anyone has I'll do it though.

So it sounds like we should use a basic shielded audio cable, some resistors, and a knock sensor (thinking about using the oem 99 one in the oem location that I have).
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Old 07-05-2013, 07:54 PM
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Originally Posted by Fireindc
So it sounds like we should use a basic shielded audio cable, some resistors, and a knock sensor (thinking about using the oem 99 one in the oem location that I have).
Yup I believe if I remember he used an 15 ohm between 2 jumpers to reduce the sensitivity.
I'll use my OEM knock sensor too if mine isn't messed up. I don't ever remember my MS acquiring signal from it.
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Old 07-05-2013, 09:55 PM
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I ordered my stuff this week. I plan on putting a POT in instead of a resistor so I can play with the sensitivity as needed. I also soldered in some audio plugs to my knock sensor cable so I can just disconnect the KNOCKSENSEMS and use the sensor for the det can. No sense in having both working at the same time in my mind. Knocksense is less than ideal anyway.
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Old 07-05-2013, 10:06 PM
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Just a safety precaution to have knock sense yes? After you use said det can/ dyno tune you shouldn't have to worry about knock.

That is a great idea with the POT though.I don't know what POT stands for but I know you mean a variable resistor.
Is there enough room for it though? also may be able to modify the plastic housing so you can adjust without disassembling?
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