Basic Engine Tuning
09-05-2003, 01:53 PM
#41
Junior Member
Join Date: Jun 2002
Posts: 12
new to the EMS world, so i got a lot of questions. TIA for the patience.
so, tuning the engine is kind of like a gamble, since we take fuel away until we get detonation or knocking?
i am not sure, but does the haltech/microtech/PFC have a knock sensor? if not, then the basic setup to tune your 7 is
EMS + wideband + datalogging + knock sensor. am i right?
i am planning on getting the LT12 and do the tuning. but it's such a dangeroud mission....
so, tuning the engine is kind of like a gamble, since we take fuel away until we get detonation or knocking?
i am not sure, but does the haltech/microtech/PFC have a knock sensor? if not, then the basic setup to tune your 7 is
EMS + wideband + datalogging + knock sensor. am i right?
i am planning on getting the LT12 and do the tuning. but it's such a dangeroud mission....
09-05-2003, 02:24 PM
#42
Senior Member
Join Date: May 2002
Location: California
Posts: 22,465
Originally Posted by ashitaka' date='Sep 5 2003, 10:53 AM
new to the EMS world, so i got a lot of questions. TIA for the patience.
so, tuning the engine is kind of like a gamble, since we take fuel away until we get detonation or knocking?
i am not sure, but does the haltech/microtech/PFC have a knock sensor? if not, then the basic setup to tune your 7 is
EMS + wideband + datalogging + knock sensor. am i right?
i am planning on getting the LT12 and do the tuning. but it's such a dangeroud mission....
so, tuning the engine is kind of like a gamble, since we take fuel away until we get detonation or knocking?
i am not sure, but does the haltech/microtech/PFC have a knock sensor? if not, then the basic setup to tune your 7 is
EMS + wideband + datalogging + knock sensor. am i right?
i am planning on getting the LT12 and do the tuning. but it's such a dangeroud mission....
mike
09-05-2003, 06:03 PM
#43
Member
Join Date: Apr 2003
Location: gloucester
Posts: 91
if you take it easy and do it in steps, its not a gamble. leaning out untill detonation isnt always good, when i tune(carbs for now) i tune for power, not nessasarily a/f ratios. the butt dyno is a wonderfull thing!
09-07-2003, 10:06 AM
#44
Senior Member
Join Date: May 2002
Location: Okinawa, Japan
Posts: 4,928
I learned most if not all of my tuning methods from Chris(Dragon) and IGY.
Basically, I tune with a wideband 02 sensor(techedge 1.5) I use the datalogit for the PFC to record my a/f's for a certain run and go from there.
I don't even bother to look at the knock sensor anymore since it seems so sensitive at times that it picks up little things that "could" be knock, but turn out to be road noise. I've seen my car knock to 100 below boost in the 4000 rpm range...if my knock meter is correct, I'd certainly be knocking...but how do you know at 12 a/f below boost?
Practically impossible if you ask me....especially considering that I run a good a/f for driving.
I'm using IGY's timing map right now and used my datalogit/Techedge wide band to tune my top end. Currently running 11.00~11.20 a/f at .8 kilos boost.
Basically, I tune with a wideband 02 sensor(techedge 1.5) I use the datalogit for the PFC to record my a/f's for a certain run and go from there.
I don't even bother to look at the knock sensor anymore since it seems so sensitive at times that it picks up little things that "could" be knock, but turn out to be road noise. I've seen my car knock to 100 below boost in the 4000 rpm range...if my knock meter is correct, I'd certainly be knocking...but how do you know at 12 a/f below boost?
I'm using IGY's timing map right now and used my datalogit/Techedge wide band to tune my top end. Currently running 11.00~11.20 a/f at .8 kilos boost.
09-08-2003, 05:37 PM
#46
Super Moderator
Join Date: Jul 2001
Location: NJ
Posts: 17,839
09-09-2003, 01:22 PM
#47
Member
Join Date: Jul 2003
Location: Planet Cusco...
Posts: 53
09-09-2003, 01:39 PM
#48
Junior Member
Join Date: Mar 2003
Posts: 29
$349 for a Complete Digital Wideband O2 Set-up including the Bosch O2 Sensor: http://www.innovatemotorsports.com
Group Buy here: http://www.mercedimports.com/news.asp?id=22
I just got mine yesterday and had the bung(I need T.P. for my bung hole...) welded to my DP...Woo-Hoo.
Group Buy here: http://www.mercedimports.com/news.asp?id=22
I just got mine yesterday and had the bung(I need T.P. for my bung hole...) welded to my DP...Woo-Hoo.
09-10-2003, 09:16 PM
#49
Senior Member
Thread Starter
Join Date: Jun 2002
Location: La Plata, Maryland
Posts: 9,725
Originally Posted by vosko' date='Sep 8 2003, 02:37 PM
BTW You guys rock with the links.