Update....
I wasn’t overly impressed with the map I had on my Hondata, it had some sort of rumble, pop and bang added on to it which is not very Honda at all.
I had been running about on the standard ECU all summer due to disliking it so much
So, I took the car down to Doncaster for a mapping session with Will @ RDT
Will had mapped my first EK9 with a Jun build over 10 years ago, so I knew how good he was at his craft and had no qualms about going to see him again.
The results were definitely worth the trip
Will @ RDT’s map
Vtec @5400rpm, rev limit @8500rpm
161.7WHP
RDT vs Stock ECU
The results speak for themselves, Wills map
Absolutely trashed the stock ecu’s map, @6000rpm it beats it by almost 20WHP and 20Lbft torque.
AFR readings are almost the same bar the little lean out @6300rpm, Wills map has smoothed this out
RDT vs 1st Hondata map
as you can see RDT’s new map beats the 1st Hondata map everywhere up the rev range, not by much all the way upto 6750rpm but after that it’s a clear winner by about 10WHP and 10lbft torque.
The AFR reading are much improved though.
The 1st Hondata map was running quite lean from about 7000rpm to redline and is very inconsistent towards the top of the range.
Wills map has smoothed this out and made it much more consistent and safer
here’s the reported results from the 1st Hondata map for comparison
it’s worth mentioning that the original Hondata map and results were done on a rolling road type dyno,
RDT use a hub dyno which only works out WHP.
From what I’m lead to believe the hub dyno is a more accurate way of measuring power as it takes out a lot of the variables that exist using a rolling road type dyno.
the car goes off the road for winter in a couple of days so I’m going to be out testing it out some more but first impressions are that it feels like a completely different car, definitely lost some of the gutless feeling in the midrange, so smooth on and off throttle, vtec engagement isn’t as pronounced as it is on stock ECU but it is definitely pulling harder overall.