i thought so.

 

wanna buy one??i'll sell it to you real cheap...i need the cash because i make $8 an hour

 

uh oh. here we go again ding ding ding

 

So you are a machinist now huh? Moving up in the world I see. Dial calipers is not the proper way to measure a crank journal to find out if its out of round, but you knew that. No wonder why you thought the crank was out of round.


Dan @ Pruven

 

rotf lmao

 

I thought since your eye didnt work well ,, this caliper would be the next best step..

Mark
Turbotrix

 

I see



Dan @ Pruven

 

Did you get to the bearing part yet?


Dan @ Pruven

 

The only part i didnt read was , when you pull a bearing cap and see a bad bearing , then replace it with a fresh bearing, 3 days later the same two bearings are bad. Coincidence ? i dont think so... Bad crank .. def. I've pm'd juan as im sure he'll be posting up in this thread. Maybe he still has those pistons for you.


Mark
Turbotrix

 

there is reputable person

 

cant wait to see what he has to say.

 

now i'm quoting my self, i really have gone mad cam is still for sale

i need spell check

 

What the hell is Juan going to post on here that hasn't been said. Oh maybe where his car went? Did it happen at your shop or did he tow his car home first? Detonation causes bearing damage. Juans motor had bearing damage. You detonate motors. End of story.

Dan @ Pruven

 

Jason, thanks for the response here, its quite an honor to have a discussion about the AEM with the man himself. As you know I run the AEM in my race car with some success so I am very interested in it.

I disagree with your views on the knock control and I want to ask you a few questions about the subject.

First - you are saying that knock control will NOT save your engine in EVERY case. Jason - don't you think that knock control can save your engine in SOME cases? I can tell you from experience that on these cars with loud exhuasts its nearly impossible to hear knock all the time with your bare ear. In those cases - without some form of KNOCK LINK directly in front of the driver's eyes - he may have no indication that knock is occuring unless he is doing data logs at the time. However - if the knock control is active - the car will pull timing and if it is configured properly it can be enough timing to FEEL the car pulling back which can alert the driver.

Also- as we know pistons, bearings and rods are mechanical devices which can only take so much stress and physical impact before they fail. WOULD NOT a properly adjusted knock control REDUCE the damage by reducing the duration and severity fo the knock activity once it activates?

The AEM is super GOOD at knock control - obviously JASON you guys did a great job setting up the ecu as I have seen the AEM react LIGHTNING fast to detonation and knock. Honestly, after almost a year of use , and 20,000 miles, on my AEM box it still amazes me just how good it is at protecting the engines.

This talk about "radical" 400 whp evos going to blow up as a matter of course makes me ill. My evo made 667 whp, ran in dozens of drag events and drove all the way to chicago and back and I never had any engine faliure related to knock because I used the AEM knock control which kept me safe. (finally my engine did blow an oil pump seal - not related to tuning).

NO ONE is talking about using your knock control as a "saftey net"

My tuning proceedure is to carefully map and adjust the fuel maps and ignition timing and other tuning related adjustments - FIRST.

After I am satisfied that the tune is smooth and knock free - then I begin to make observation of the individual engine's background noise threshold at various load points and rpms.

At this point the AEM's knock threshold table is adjusted to provide a knock threshold tailored to the individual car's sound profile. (Some built motors which are loose make more noise and those run at high boost generally make more noise also). I had a lot of guidance from two very good 4g63 tuners in this regard - on how to disntinquish back ground engine mechanical noise from actual knock - Martin at AMS and Dave Buschur at Buschur Racing. Figuring out how to set the knock thresholds and deciding what is knock and what is engine noise is one of those things you cant read in a book and you need to learn it hands on.

On this subject, I would like to figure a way to post AEM data log pages on these forums to share and discuss knock logs with customers and other tuners. I think this could be very helpful for those trying to do their own tuning.

Once, I have the knock table set then its time to set the parameters on how much retard and enrichment to select - and in my case I use the AEM factory suplied settings which are fairly fast acting but have protected at least my engine.

Finally - Jason - while ONE good whack can destroy a piston, IMHO if you have the knock control on AT LEAST it wont be TWO good wacks. OR more like 15 - 20 extreme wacks in a row like would happen without knock control.

Jason, one of the biggest selling points of your plug and play stand alone vs some of the others - EG Autronic and HKS F-CON V PRO, etc is that yours has a very good knock control arrangment.

Personally, I find it odd that you are basically saying its pointless to use that knock feature as I find it to be one of the best points of the AEM - the others being the boost comp and data logging.

Anway - thanks for your time and for making a great product.

 

hasty hasty dan,,,

Juans motor had bearing damage when it came to your shop, you put a band-aid on a open wound. Who replaces bad bearings without replacing the crank.. ( well dan does ) Hence the reason why you never got paid. You should def not " slap " motors together. Juan will attest that his pistons were perfect ... I dont know where he towed his car, it wasnt back to your shop thats for sure. End of story .

Mark
Turbotrix