Det can wizzards
#1
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
Is the hose size indicative of the resolution of the det can or does it even matter. Basically those who have done this have you played with using stuff smaller than 3/8's lines etc. It is just that i dont fancy any more holes in my firewall like a 3/8's line would require and if a smaller say 1/4 inch line will do the job like i have on my stethiscope now then this will be a simple and effective mod for me.
#3
Elite Member
iTrader: (5)
Join Date: Jul 2006
Location: Central California
Posts: 2,557
Total Cats: 5
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
Is a det can when you listen to your engine with basically a stethescope so that you can hear knock/ping/detonation/etc? This is I am assumming a cheap or ghetto way of doing this? Sounds like a great Idea and would be fun to try out but i know nothing about it.
#7
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
(speaking of detonation detection in paul's thread) did anybody ever try this? Richard? Where are you?![](https://www.miataturbo.net/images/smilies/hsugh.gif)
here's a good example:
![Name: IMG_1969.jpg
Views: 255
Size: 41.9 KB](https://www.miataturbo.net/attachments/diy-turbo-discussion-14/214074d1501268314-det-can-wizzards-img_1969.jpg)
![](http://img.photobucket.com/albums/v203/sohc_mshue/IMG_1968.jpg)
![Name: IMG_1962.jpg
Views: 271
Size: 38.6 KB](https://www.miataturbo.net/attachments/diy-turbo-discussion-14/214075d1501268314-det-can-wizzards-img_1962.jpg)
The full how-to write up
![](https://www.miataturbo.net/images/smilies/hsugh.gif)
here's a good example:
![Name: IMG_1969.jpg
Views: 255
Size: 41.9 KB](https://www.miataturbo.net/attachments/diy-turbo-discussion-14/214074d1501268314-det-can-wizzards-img_1969.jpg)
![](http://img.photobucket.com/albums/v203/sohc_mshue/IMG_1968.jpg)
![Name: IMG_1962.jpg
Views: 271
Size: 38.6 KB](https://www.miataturbo.net/attachments/diy-turbo-discussion-14/214075d1501268314-det-can-wizzards-img_1962.jpg)
The full how-to write up
#9
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
I'd think that one of these would be the best way to build your base IGN map in boost given electronic knock detections susceptibility to mistaking noise as knock. And it would at least be a second opinion if knock did show in a log.
Think there's any disadvantage to your setup vs. the tube?
Think there's any disadvantage to your setup vs. the tube?
#13
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
I've ran very similar setup on a friend's civic like the det can in the photos above. 3/8" tubing to a closed headphone, no amplification. It works but if you have it bolted too close to the turbo you just hear the turbo make noise over the engine at high revs
.
I'm still trying to find a good spot to bolt it on my miata. I'll probably stick a microphone in the det can tube so I can hear it from my laptop (It's a little quiet without amplification.).
BTW, bad knock sounds like gravel/small pebbles kicking up and hitting your wheel well except it's coming from the engine bay area.
![Stick Out Tongue](https://www.miataturbo.net/images/smilies/tongue.gif)
I'm still trying to find a good spot to bolt it on my miata. I'll probably stick a microphone in the det can tube so I can hear it from my laptop (It's a little quiet without amplification.).
BTW, bad knock sounds like gravel/small pebbles kicking up and hitting your wheel well except it's coming from the engine bay area.
#14
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
This is what I use.
http://www.radioshack.com/product/in...entPage=search
with some stereo cable, an obd1 injector clip (or clip that comes with the knock sensor) and a bosch knock sensor. I bolt it to the block, plug my headphones into the amp unit and good to go.
#16
Elite Member
iTrader: (15)
Join Date: Dec 2007
Location: San Antonio, Texas
Posts: 4,847
Total Cats: 27
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
Man that is a brilliant approach IMO, better than running a stethoscope hose in from the engine bay, especially if the knock sensor is already in place like mine is ('99). I was about to wire up the knocksense to the MS but think I'll give this a try. If the input impedance into the amplifier is very high, then it could probably be used in parallel with the knocksense to adjust the knocksense sensitivity level.
I'm happy like a little girl
I'm happy like a little girl
Thread
Thread Starter
Forum
Replies
Last Post