Update on George D. SFR built 3.0L
#46
Nordschleife Master
An emulator (such as the Maxtronic) is good but it doesn't get around the limits of the stock Motronic code. Unless you're running a completely rewritten Motronic code (AFAIK there is no vender offering this to the market) you're still modifying values within the stock Motronic framework so to speak.
So while you're able to modify rev limit and fuel/ignition values you're only able to do so at the stock locations. And the highest rpm "location" in the code is 6240 rpm.
So while you're able to modify rev limit and fuel/ignition values you're only able to do so at the stock locations. And the highest rpm "location" in the code is 6240 rpm.
#47
Rocket Scientist
Rennlist Member
Rennlist Member
#48
An emulator (such as the Maxtronic) is good but it doesn't get around the limits of the stock Motronic code. Unless you're running a completely rewritten Motronic code (AFAIK there is no vender offering this to the market) you're still modifying values within the stock Motronic framework so to speak.
So while you're able to modify rev limit and fuel/ignition values you're only able to do so at the stock locations. And the highest rpm "location" in the code is 6240 rpm.
So while you're able to modify rev limit and fuel/ignition values you're only able to do so at the stock locations. And the highest rpm "location" in the code is 6240 rpm.
this car still uses the EARLY motronic (modified, no FRWilk chip in sight though) and I can tell you it is seeing more than 6240 with a lot of hours, and it hasn't blown up.
http://www.youtube.com/watch?v=dWppHQ5UWCk
#49
Drifting
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From: Tucson and Greer Arizona
An emulator (such as the Maxtronic) is good but it doesn't get around the limits of the stock Motronic code. Unless you're running a completely rewritten Motronic code (AFAIK there is no vender offering this to the market) you're still modifying values within the stock Motronic framework so to speak.
So while you're able to modify rev limit and fuel/ignition values you're only able to do so at the stock locations. And the highest rpm "location" in the code is 6240 rpm.
So while you're able to modify rev limit and fuel/ignition values you're only able to do so at the stock locations. And the highest rpm "location" in the code is 6240 rpm.
#50
Nordschleife Master
hmmm
this car still uses the EARLY motronic (modified, no FRWilk chip in sight though) and I can tell you it is seeing more than 6240 with a lot of hours, and it hasn't blown up.
http://www.youtube.com/watch?v=dWppHQ5UWCk
this car still uses the EARLY motronic (modified, no FRWilk chip in sight though) and I can tell you it is seeing more than 6240 with a lot of hours, and it hasn't blown up.
http://www.youtube.com/watch?v=dWppHQ5UWCk
There are a million ways of keeping an engine from blowing up, but it doesn't make them the best choice.
#52
Nordschleife Master
Above 6000 rpm you need a lot more ignition advance. So running an engine a lot higher than that and not being able to tune for it to make sure you get all the power you can get - that is past the limit in my book.
#53
Drifting
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From: Tucson and Greer Arizona
If this were an 8000 rpm motor, Russell CAN add cells to the program to allow for a larger fuel curve. He has done this for custom race motors that did not go the stand alone route.
This is not meant to be anything other than information for those that want correct data.
#54
I need to get me one of those
(I never thought I would get ths excited about an alternator )
#57
Nordschleife Master
The fueling maps in the motronic are nothing but correction tables. It works on a curve and continues on the same curve up the RPM scale. So when going up in RPM's the motronic computer is reading correction tables on the curve. You will change fueling requirements for 4000rpm much earlier on the curve. When going past 6240 RPM the fuel curve is still there for fueling requirements because you changed the correction tables PRIOR to 6240 for a 7K rev limit. Your injectors don't just shut off at 6240. The computer is pulsing the fuel injectors above this limit. YOU CAN TUNE PAST 6240.
If this were an 8000 rpm motor, Russell CAN add cells to the program to allow for a larger fuel curve. He has done this for custom race motors that did not go the stand alone route.
This is not meant to be anything other than information for those that want correct data.
If this were an 8000 rpm motor, Russell CAN add cells to the program to allow for a larger fuel curve. He has done this for custom race motors that did not go the stand alone route.
This is not meant to be anything other than information for those that want correct data.
The CORRECT data is that stock Motronic code for these cars do NOT have rpm tables for any higher than 6240 rpm.
That means that even at 9540 rpm you are running on the 6240 values.
Sure it WORKS but it's NOT optimal.
Ignition values make a HUGE difference, and ESPECIALLY above 6000 rpm. To say that the stock Motronic can handle it is like saying 20 year old tires can handle the race track. Sure they won't blow up att medium pace but it's not a fast or relieble way of doing it.
If some of you guys want to stick to the Motronic - that's fine by me (heck, I even produce and sell chips for these cars) but don't try to convince yourself it's as flexible as a standalone management system.
Anyone arguing against me is either a) a chip vendor or b) not an experienced tuner.
#59
https://rennlist.com/forums/showthre...ferrerid=19859
#60
Drifting
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From: Tucson and Greer Arizona
No issue here. Stand alone is the best option for a motor that wants to squeeze the last bit of HP out of the car at all RPM's. This motor is just a street/DE motor. We have cam gears for timing along with MaxTune for tuning.
I am telling you that Russell can add more cells to the motrinic code to allow for tuning up to whatever RPM you want. Call him and have a chat.
I am telling you that Russell can add more cells to the motrinic code to allow for tuning up to whatever RPM you want. Call him and have a chat.
It seems you and 944CS thinks that I'm stating that it shuts off past 6240?
The CORRECT data is that stock Motronic code for these cars do NOT have rpm tables for any higher than 6240 rpm.
That means that even at 9540 rpm you are running on the 6240 values.
Sure it WORKS but it's NOT optimal.
Ignition values make a HUGE difference, and ESPECIALLY above 6000 rpm. To say that the stock Motronic can handle it is like saying 20 year old tires can handle the race track. Sure they won't blow up att medium pace but it's not a fast or relieble way of doing it.
If some of you guys want to stick to the Motronic - that's fine by me (heck, I even produce and sell chips for these cars) but don't try to convince yourself it's as flexible as a standalone management system.
Anyone arguing against me is either a) a chip vendor or b) not an experienced tuner.
The CORRECT data is that stock Motronic code for these cars do NOT have rpm tables for any higher than 6240 rpm.
That means that even at 9540 rpm you are running on the 6240 values.
Sure it WORKS but it's NOT optimal.
Ignition values make a HUGE difference, and ESPECIALLY above 6000 rpm. To say that the stock Motronic can handle it is like saying 20 year old tires can handle the race track. Sure they won't blow up att medium pace but it's not a fast or relieble way of doing it.
If some of you guys want to stick to the Motronic - that's fine by me (heck, I even produce and sell chips for these cars) but don't try to convince yourself it's as flexible as a standalone management system.
Anyone arguing against me is either a) a chip vendor or b) not an experienced tuner.