Discussion
4.6 RV8.
I am currently running 14CUX and not ready or willing to ditch it in favour of a full management system.
I also have all kit with Rovergauge and enough knowledge to modify the fuel tables using Tunerpro etc and burning new chips for the cux.
What I need at the moment is a wideband AFR that will log data so I can merge the data with rovergauge data to then adjust the fuel map accordingly.
Looks like a kit with the latest 4.9 bosch probe and some method of data logging afr data.
Maybe an AEM kit or Innovate LC-2 kit along with an android app on my phone ?
So what are the thoughts of you good people on this matter.
I am currently running 14CUX and not ready or willing to ditch it in favour of a full management system.
I also have all kit with Rovergauge and enough knowledge to modify the fuel tables using Tunerpro etc and burning new chips for the cux.
What I need at the moment is a wideband AFR that will log data so I can merge the data with rovergauge data to then adjust the fuel map accordingly.
Looks like a kit with the latest 4.9 bosch probe and some method of data logging afr data.
Maybe an AEM kit or Innovate LC-2 kit along with an android app on my phone ?
So what are the thoughts of you good people on this matter.
You need to have a look at steve sprint's site for remapping the lucas, he has done exactly this ..
My preference is towards the AEM stuff - it just works and is as reliable as anything i have come across, i use AEM wideband on my rolling road and it's been doing stirling work for many many years untouched.
I have absolutely no time for innovate stuff at all. ! Buy innovate, buy twice, or thrice ..
AEM X series all the way for me... fitted to all my ecu installs.
My preference is towards the AEM stuff - it just works and is as reliable as anything i have come across, i use AEM wideband on my rolling road and it's been doing stirling work for many many years untouched.
I have absolutely no time for innovate stuff at all. ! Buy innovate, buy twice, or thrice ..
AEM X series all the way for me... fitted to all my ecu installs.
Im sure work has been done on this i the past- in so much you need to timestamp your data from the AFR gauge, so you can then integrate it with the current fuel cell in RoverGauge. Im pretty sure there is some software been written that number crunches the two lots of data, so drop Steve Sprint a mail.
Just a thought .. are you running map 2 ? if not then all you will see is 14.7afr for 90 percent of the logs if you're on map5
You can run on map 2 and import any changed data to map 5, or maybe run something like the screen motion capture software chimpongas mentioned once, and tie in the lambda trims with the fuel table and just alter the fuel numbers up/down as required until you have minimal trimming taking place.
This is effectively what i do on the dyno for part throttle on map5 .. adjust the fuel number until the lambda trim is minimised.
You can run on map 2 and import any changed data to map 5, or maybe run something like the screen motion capture software chimpongas mentioned once, and tie in the lambda trims with the fuel table and just alter the fuel numbers up/down as required until you have minimal trimming taking place.
This is effectively what i do on the dyno for part throttle on map5 .. adjust the fuel number until the lambda trim is minimised.
spitfire4v8 said:
You need to have a look at steve sprint's site for remapping the lucas, he has done exactly this ..
My preference is towards the AEM stuff - it just works and is as reliable as anything i have come across, i use AEM wideband on my rolling road and it's been doing stirling work for many many years untouched.
I have absolutely no time for innovate stuff at all. ! Buy innovate, buy twice, or thrice ..
AEM X series all the way for me... fitted to all my ecu installs.
Is it time to change my Techedge J21 ?My preference is towards the AEM stuff - it just works and is as reliable as anything i have come across, i use AEM wideband on my rolling road and it's been doing stirling work for many many years untouched.
I have absolutely no time for innovate stuff at all. ! Buy innovate, buy twice, or thrice ..
AEM X series all the way for me... fitted to all my ecu installs.
It must be 10 years old .
I'm aware there is a tecghedge j22 .
spitfire4v8 said:
Just a thought .. are you running map 2 ? if not then all you will see is 14.7afr for 90 percent of the logs if you're on map5
You can run on map 2 and import any changed data to map 5, or maybe run something like the screen motion capture software chimpongas mentioned once, and tie in the lambda trims with the fuel table and just alter the fuel numbers up/down as required until you have minimal trimming taking place.
This is effectively what i do on the dyno for part throttle on map5 .. adjust the fuel number until the lambda trim is minimised.
I sat my daughter in the passenger seat with a laptop with a cellophane sheet over the laptop screen showing RoverGauge. I then shouted out rich or lean for the various road conditions from the AFR meter, and she marked the relevant fuel cells with a felt pen R or L . Id then stop and alter the values by about 10 hex before another test run. Got it sorted in a few hours. Cant be faffed with making things over complex.You can run on map 2 and import any changed data to map 5, or maybe run something like the screen motion capture software chimpongas mentioned once, and tie in the lambda trims with the fuel table and just alter the fuel numbers up/down as required until you have minimal trimming taking place.
This is effectively what i do on the dyno for part throttle on map5 .. adjust the fuel number until the lambda trim is minimised.
blitzracing said:
............... I then shouted out rich or lean for the various road conditions from the AFR meter.............
So how did you decide if the meter reading was rich or lean for the conditions. If you were accelerating flat out then 12.5 would be right but how would you know what was right in any other situation.Steve
Don't worry, I did not set it to be the same across the board. 13.5 AFR up to around 2000 rpm for a smooth idle and no shunting , 14.7 under moderate load, 13.5 under peak load constant throttle- blips of 12.5 with acceleration fuel enrichment added, 15 under light cruise. One specific area of the map leans out to 15.7 on the over run to produce a few exhaust pops, but you have to drop from above 4500 and then hold the throttle open a bit to reach those fuel cells. Just shutting the throttle keeps things quiet. Got to love the green map. 
blitzracing said:
Don't worry, I did not set it to be the same across the board. 13.5 AFR up to around 2000 rpm for a smooth idle and no shunting , 14.7 under moderate load, 13.5 under peak load constant throttle- blips of 12.5 with acceleration fuel enrichment added, 15 under light cruise. One specific area of the map leans out to 15.7 on the over run to produce a few exhaust pops, but you have to drop from above 4500 and then hold the throttle open a bit to reach those fuel cells. Just shutting the throttle keeps things quiet. Got to love the green map.
I get the feeling my MBE map is very similar going by the overrun description I didn’t want excess fuel pushing me on when shutting off from speed but we all like a few pops and bangs but only if you are the instigator. I really enjoy not having them on occasion.
Engine braking/ clutch / throttle control is so important to control the car.
I love my map for being so race like yet if you tickle the throttle it’s smooth as to be almost majestic.
I’m sure all the info these Cux maps contain are well known by the better Tvr guru tuners so semi replicating a lot of data onto the newer ECU systems and creating base maps to suit.
Fine tuning just does what any bespoke map should achieve, the best out of your engine so I hope Frank has great success.
Classic Chim said:
blitzracing said:
Don't worry, I did not set it to be the same across the board. 13.5 AFR up to around 2000 rpm for a smooth idle and no shunting , 14.7 under moderate load, 13.5 under peak load constant throttle- blips of 12.5 with acceleration fuel enrichment added, 15 under light cruise. One specific area of the map leans out to 15.7 on the over run to produce a few exhaust pops, but you have to drop from above 4500 and then hold the throttle open a bit to reach those fuel cells. Just shutting the throttle keeps things quiet. Got to love the green map.
I get the feeling my MBE map is very similar going by the overrun description I didn’t want excess fuel pushing me on when shutting off from speed but we all like a few pops and bangs but only if you are the instigator. I really enjoy not having them on occasion.
Engine braking/ clutch / throttle control is so important to control the car.
I love my map for being so race like yet if you tickle the throttle it’s smooth as to be almost majestic.
I’m sure all the info these Cux maps contain are well known by the better Tvr guru tuners so semi replicating a lot of data onto the newer ECU systems and creating base maps to suit.
Fine tuning just does what any bespoke map should achieve, the best out of your engine so I hope Frank has great success.
Looks like I've a lot to learn.....looking forward to it though
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