tooquicktostop Posted July 4, 2007 Author Share Posted July 4, 2007 So on a tuned engine an aftermarket knock monitoring system might be an idea then?? Are we talking huge money for this then? Just so I know, the piston crowns are they normally dimpled like that or is that pitting from detonation?? Also I had been led to believe by a man thats on holidays for a few years that the iridium plugs are a bad thing and that the ceramics fall out of them under det conditions. He then showed me my old engine with a whacking great hole in a piston where he'd gotten det and the centre of the spark plug had hit the piston. He said to use coppers until you were sure you had no det as they don't fall apart. He knew a thing or two as he ran the first UK car to a 10 second quarter so I took that as gospel. Have you managed to strip that engine down yourself?? If you can do that kind of work yourself then at least some of the costs of this mishap will be less. Do people think that it would be cheaper to fix the engine or replace it with a second hand item?? How much does it cost to fit bigger better pistons etc and is that actually an option here? I am having my car mapped in a couple of weeks and am aware that similar things may happen as I stated before it happens to all the tuners at some point in time. Knowing what it could cost before I squeeze a bit more boost out is always a good idea. Thats funny I know someone who just brought that 10 second cars engine Quote Link to comment Share on other sites More sharing options...
dangerous brain Posted July 4, 2007 Share Posted July 4, 2007 Hopefully not the one that had a hole in the piston then lol. Quote Link to comment Share on other sites More sharing options...
Steve Posted July 4, 2007 Share Posted July 4, 2007 it would be an interesting discussion, but at this point we can see no way of making it simpler. Even now with the comments in this thread people are still happy to take their car to Dan (and that may say something for his level of expertise), and Dan has been in touch to say that nothing he did was wrong or out of the ordinary. JB The thing is though he would say it was nothing he has done cause he dont wanna pay for it. But as many of the more knowledgeable have confirmed, that damage has happened due to detenation. Dean confirmed the pistons were ok when the head was off a few weeks before. Quote Link to comment Share on other sites More sharing options...
Mike B Posted July 4, 2007 Share Posted July 4, 2007 http://www.chriswilson.tv/knock.wma for what knock sounds like on one of these. Timing at 4000 RPM, 17 degrees, no knock, 27 dgrees, lots of knock, back to 17 degrees, no knock. Wow.. that's really interesting.. kind of hard to miss. Was that on a supra engine? I'm surprised that not more of us use the knock amps and such like with either auto shutdown or a big red light on the dash... If your car is tuned close to the bone then a change in weather or hardware would push it over and you may never know before it's too late. Quote Link to comment Share on other sites More sharing options...
Wez Posted July 4, 2007 Share Posted July 4, 2007 http://www.chriswilson.tv/knock.wma for what knock sounds like on one of these. Timing at 4000 RPM, 17 degrees, no knock, 27 dgrees, lots of knock, back to 17 degrees, no knock. Lots of info on the Knock Box site. Blimey that is lots of knock, never heard that much before Quote Link to comment Share on other sites More sharing options...
Wez Posted July 4, 2007 Share Posted July 4, 2007 Wonder if all the people with fancy sound systems could wire it up to an AUX in and have it playing loud while mapping Not an option for me since I have no stereo. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted July 4, 2007 Share Posted July 4, 2007 The knock level was deliberately made very noticeable by bizarre changes in advance, just to show what you might expect to hear through the headphones in a serious knock situation. real world knock may not be as obvious, by any means. The change in advance is severe, even for an N/A engine, it's obviously done to show pretty much worse case scenarios. (IMO) Quote Link to comment Share on other sites More sharing options...
tooquicktostop Posted January 18, 2008 Author Share Posted January 18, 2008 Seems a long time ago but I am going into Pheonix tomorrow to watch the engine hopefully go into the car, the Brian Crower rods went in this week and the sump and rebuilt head going on today, will take the camera to get plenty of pictures Quote Link to comment Share on other sites More sharing options...
paul mac Posted January 18, 2008 Share Posted January 18, 2008 Seems a long time ago but I am going into Pheonix tomorrow to watch the engine hopefully go into the car, the Brian Crower rods went in this week and the sump and rebuilt head going on today, will take the camera to get plenty of pictures best of luck dude, hope it goes better than the last time Quote Link to comment Share on other sites More sharing options...
jevansio Posted January 18, 2008 Share Posted January 18, 2008 Yeah best of luck Dean Quote Link to comment Share on other sites More sharing options...
gaz1 Posted January 18, 2008 Share Posted January 18, 2008 Seems a long time ago but I am going into Pheonix tomorrow to watch the engine hopefully go into the car, the Brian Crower rods went in this week and the sump and rebuilt head going on today, will take the camera to get plenty of pictures excellent news, now whip mine out while your there;) Quote Link to comment Share on other sites More sharing options...
bromy Posted January 18, 2008 Share Posted January 18, 2008 Great news nightmare nearly over, Mark knows his onions Quote Link to comment Share on other sites More sharing options...
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