Chermax Phase 2 begins...
Senior Member
Joined: Nov 2004
Posts: 344
From: Nashua, NH
Wide bands read the a/f ratio. Some of the brands out there also can do data logging. That way you can download a host of information (some capture everything the obd2 as well as exhaust temp and boost. From that info you can see if and where you go lean or rich, times, etc. When you make changes you can compare to the previous tune. A dyno can check a/f and rpm. I have never seen all the other data given in a dyno sheet, but I imagine it could be. A tune, especially on a turbo is good for the current weather condition. When there's a large temp change more or less fueling will be needed. That would show up in the a/f and exhaust temp. The fueling curve will need to changed to compensate with whatever method you can do with your car. The goal is repeatablity. Each combination of mods to a car will like it's own "sweet spot" for a/r and exhaust temp within a safe range. A lot of hp can be lost from a lousy tune.
Wide bands read the a/f ratio. Some of the brands out there also can do data logging. That way you can download a host of information (some capture everything the obd2 as well as exhaust temp and boost. From that info you can see if and where you go lean or rich, times, etc. When you make changes you can compare to the previous tune. A dyno can check a/f and rpm. I have never seen all the other data given in a dyno sheet, but I imagine it could be. A tune, especially on a turbo is good for the current weather condition. When there's a large temp change more or less fueling will be needed. That would show up in the a/f and exhaust temp. The fueling curve will need to changed to compensate with whatever method you can do with your car. The goal is repeatablity. Each combination of mods to a car will like it's own "sweet spot" for a/r and exhaust temp within a safe range. A lot of hp can be lost from a lousy tune.
i demand a update!
He said he would have an update today...
aka The Doom Ship
Joined: May 2004
Posts: 1,788
From: DFW, TX
The most anticipated events I'm waiting for:
Season 5 of The Wire(Jan '08)
Mayweather vs. Hatton fight(12/07)
Chernmax to post dyno chart(who knows LOL)
Season 5 of The Wire(Jan '08)
Mayweather vs. Hatton fight(12/07)
Chernmax to post dyno chart(who knows LOL)
Last edited by AllBlackMax; Nov 30, 2007 at 06:36 PM.
haha j/k where u at maan
Senior Member
Joined: Feb 2007
Posts: 634
From: Pittsburgh, PA
Joshua
Personally, I think it's great that people are showing MASSIVE interest in this thread. With interest comes anxiousness. Like it or not, Chris is the most sought after person on this board due to his willingness to take his max to the max-show it off while doing so-and his never ending insightful commentary. On this board he is thee "celebrity" and these guys are akin to the paparazzi. 
If I spent +10G's on my ride I would hope it would generate HUGE interest. Imagine if you will, if there wasn't any interest...now that would be a sad.
BTW Do you know his address? Where he eats? Any help would help. Chris--->
If I spent +10G's on my ride I would hope it would generate HUGE interest. Imagine if you will, if there wasn't any interest...now that would be a sad.
BTW Do you know his address? Where he eats? Any help would help. Chris--->
Thread Starter
Joined: May 2005
Posts: 10,197
From: Displaced New Yorker in Southern, MD
Video people!!! Check out my new YouTube VIDs of my takeoff and drive-by, turn your speakers up because she is a silent killer, on the takeoff video, watch how the boost launches the car near the entrance of the bridge and she surges forward, what a thrill!!!
On the second VID, that turn was at 80+ and look how flat the car ran!!!
http://www.youtube.com/watch?v=pNLN3a-Y8Z4
http://www.youtube.com/watch?v=QuK6FAoqHFw
On the second VID, that turn was at 80+ and look how flat the car ran!!!
http://www.youtube.com/watch?v=pNLN3a-Y8Z4
http://www.youtube.com/watch?v=QuK6FAoqHFw
Last edited by chernmax; Dec 2, 2007 at 03:49 AM.
Thread Starter
Joined: May 2005
Posts: 10,197
From: Displaced New Yorker in Southern, MD
Video people!!! Check out my new YouTube VIDs of my takeoff and drive-by, turn your speakers up because she is a silent killer, on the takeoff video, watch how the boost launches the car near the entrance of the bridge and she surges forward, what a thrill!!!
http://www.youtube.com/watch?v=pNLN3a-Y8Z4
http://www.youtube.com/watch?v=QuK6FAoqHFw
http://www.youtube.com/watch?v=pNLN3a-Y8Z4
http://www.youtube.com/watch?v=QuK6FAoqHFw
glad to see it running well...what boost are you running?? I guess its fast, but in the vids it seems a little reserved, was that all out? 
how much power did it make?
oh don't get me wrong, I know its quick, but it just didn't seem as fast as I thought it would be in the videos...its probably just the video though, but whatever glad its running. oh and trust me, I have a good idea of judging "fast" cars.... 
Thread Starter
Joined: May 2005
Posts: 10,197
From: Displaced New Yorker in Southern, MD
Yo and that turn toward the end of the VID is at 80+ and look how flat the car sits around the turn...
Thread Starter
Joined: May 2005
Posts: 10,197
From: Displaced New Yorker in Southern, MD
Chern now that you're back on the org.(since you were gone for a few days) i think its time to work on updated pics in your sig. Just my .02. Love the car man, you're a pioneer for us all.
i just made a baby in my underoos.
Thread Starter
Joined: May 2005
Posts: 10,197
From: Displaced New Yorker in Southern, MD