MAPPING.WHAT DOES IT COST AND WHO DOES IT
Discussion
Have a look at the Emerald web site - all explained there. www.emeraldm3d.com
Track Car Solutions are eperts at doing this
Track Car Solutions are eperts at doing this
baguaman said:
how does that work ..? is it a lesser solution..
Mapping the original ECU is by no means a lesser solution. It works by replacing the standard maps with custom ones specific to your car, determined on a rolling road. The most potent Cerbs I can think of, Nickccc's, Daggarts old car, the Boss Cerb and (I think) Craig's Nitrous Cerb all run MBE. Sticking with the MBE means you can take your car to any TVR specialist after it's mapped. In terms of your drivability requirements, a custom map is the best way to achieve this.
Steve.
Edited by Steve_T on Friday 23 March 11:40
baguaman said:
I have discovered that lumpiness at 2k revs forcing me to change up very quickly is a quirk of cerbs that can be fixed by mapping..what is mapping ..how does it work and who does it..
I found that having my car remapped didn't remove the 2k lumpiness. It did alter the torque delivery through the rev range making it feel much different (better, faster feeling). I would say it's now much better for open road driving & slightly more annoying to drive round town. Dunno if this is common with remaps - presumably it depends what you get done.
Previously I had the 'red-rose chip' which I believe is available from APM relatively cheaply. This plugs on the ECU & makes the car smoother at 2k (ie. no noticable lumpiness). That's on the 4.5. Not sure on the 4.2 - I gave mine away (to Cooky I think) to see if it'd improve his car. Not sure how he got on.
Edited by big_treacle on Friday 23 March 11:55
there's pros and cons for going either route .. stevet is right in that if you stick to mbe you can take your car anywhere, but the mbe is much more likely to suffer engine running problems, the emerald route is much more stable.
the mbe route looks std (might be important for some even though the ecu is hidden) ..
the emerald can support 3 different maps all switchable on the fly, has fully user-configurable throttle and rev sites so you can really close them up at low throttle/rpm to get smoothness the mbe can only dream about. The fastest cerbie at santa pod runs and emerald (425bhp), the highest bhp independant tested cerbera at surrey rolling road (440.8bhp) runs an mbe. For some reason though the emerald just has the edge on midrange torque.
the emerald route is initially more expensive, but becomes better value if you're on a programme of improvements needing mapping each time, remapping the mbe is expensive!
I do both emerald and mbe so can be unbiased about the benefits of each system, for some the mbe route is better for others the emerald is better.
the mbe route looks std (might be important for some even though the ecu is hidden) ..
the emerald can support 3 different maps all switchable on the fly, has fully user-configurable throttle and rev sites so you can really close them up at low throttle/rpm to get smoothness the mbe can only dream about. The fastest cerbie at santa pod runs and emerald (425bhp), the highest bhp independant tested cerbera at surrey rolling road (440.8bhp) runs an mbe. For some reason though the emerald just has the edge on midrange torque.
the emerald route is initially more expensive, but becomes better value if you're on a programme of improvements needing mapping each time, remapping the mbe is expensive!
I do both emerald and mbe so can be unbiased about the benefits of each system, for some the mbe route is better for others the emerald is better.
trackcar said:
the emerald route is initially more expensive, but becomes better value if you're on a programme of improvements needing mapping each time, remapping the mbe is expensive!
Fair do's to the rest, but I can't see how the MBE remap is going to be much more expensive than the Emerald. As I see it you're paying for roller time + the time of the technician when altering either map to adjust for a mod. So the costs should be quite similar unless I've missed something.
Steve.
baguaman said:
I have discovered that lumpiness at 2k revs forcing me to change up very quickly is a quirk of cerbs that can be fixed by mapping..what is mapping ..how does it work and who does it..
Crumbs that's an early change! Are you in 5th gear then doing a steady, if lumpy, 33mph?
Keep it above 2k ooooh yes. I prefer my engine buzzing between 2500 to 3000rpm.
Or change to a 4.2 as I've mentioned before.
Seriously though are the standards 4.5s that bad or do they just get tired over time, needing a good honest fettle and their pipes all stroked? Can't imagine them leaving the factory with such an obvious driving flaw.
(not with TVR's quality control)
Steve_T said:
trackcar said:
the emerald route is initially more expensive, but becomes better value if you're on a programme of improvements needing mapping each time, remapping the mbe is expensive!
Fair do's to the rest, but I can't see how the MBE remap is going to be much more expensive than the Emerald. As I see it you're paying for roller time + the time of the technician when altering either map to adjust for a mod. So the costs should be quite similar unless I've missed something.
Steve.
Doesn't the particular MBE in use in the Cerb require the burning of a chip to insert in the ECU, hence the additional cost?
Minor point earlier about the emerald having multiple maps, implying it was unique. This is also available on the MBE too, I'm having a second 'safe' map fitted to mine for when I put in shite petrol etc.
Paul was saying that he'd put a switchable economy cruising map in for someone recently too, and apparently it toured around europe at an average of 28mpg
.
Paul was saying that he'd put a switchable economy cruising map in for someone recently too, and apparently it toured around europe at an average of 28mpg
.Just a small point but my 4.5 has never been lumpy. Its silky smooth through the rev range and its completely standard.
I can understand remapping to squeeze the power out of the engine, but can't understand using mapping to sort out rev range lumpiness unless you'd exhausted every attempt to find a cause.
I can understand remapping to squeeze the power out of the engine, but can't understand using mapping to sort out rev range lumpiness unless you'd exhausted every attempt to find a cause.
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