My EK9 on Hondata S300 Mapped by RDT *REVIEW*

So I finally managed to get my S300 mapped, lifes been busy and its been put off for a few months now due to work and social life commitments.

After speaking to Will and meeting him a few times, I felt sure he was the man for the job! So many good reviews and such a great reputation on forums regarding his work, he has so much time for his “clients” and explains everything in great detail. His knowledge is phenomenal and he answered every question and myth I could think of.

I’d booked the car in on Sunday 16th Oct and arranged to meet around noon time, upon arrival, he checked over the car, and carried out his pre dyno inspection, comprising of, compression test, timing checks, and a baseline figure (3 of, which he took the best figure)

A few pics of the car and setting up















This is where the surprise came, the highest figure was 159 whp!!!!!Quite a bit more than what was expected, I always believed the engine to be healthy and this proved it again, coupled with the almost identical 210psi compression across the 4 cylinders. There seems to be something different about the engine, a set of cams was hinted at, but with no way to be sure we cant say for definite, but it made a lot more than most for a base run. Hopefully good midrange figures could be made on the map.




The next step was to install a wideband into the exhaust, which meant removing the O2 sensor in the exhaust, a mammoth task as it was seized tight, due to a trio of issues,

1 – Not lubricated when seated into the boss
2 – Slighty over enthusiasm by myself when changing the manifold a few weeks ago
3 – The manifold having a stainless boss and not a mild steel one like most manifold manufacturers use

After an hours struggling we decided to take the manifold off so we (Will) could get a better angle. …………………Success, it was out. Time to put it back together and start with the mapping,

I tried to leave Will to himself and let him crack on with the task of mapping, but his customer service kept me entertained, as he explained everything he was doing at each step. I’ve seen mapping done before behind closed doors, and without an insight into what is happening with your car.

The day was getting on and daylight started to disappear and became dusk, and still the dyno roared up and the industrial estate was showered in the noise of a B16B revving loudly on a dynapack dyno.









The boiling water out of the dyno, helping to keep the dyno cool.













Will made some great gains midrange and took care every step of the way to ensure everything was correct and tweaked to perfection.

Vtec crossover was set and the graph was almost complete, a few more tweaks to smooth the dips and it was complete.

Peak power was 163WHP and I got good gains across the revs range from 4700 onwards, in some places 20whp!

Summary

163 WHP
Unsure on torque, Will is sending me the graphs
Shift light at 7700rpm
Limiter at 8400rpm
Launch control at 4700rpm

The throttle response is so good, no jerkyness, smooth like silk, and when the accelerator is punched the car responds with zero lag. The shift light is a great touch and launch control works well, definitely helps on standing starts


Graphs


Before vs After



My graph



Compared to a healthy B16B same as mine with very similar mods, same filter and Exhaust manifold



10 / 10 for Will , I cant recommend him enough!!!!! You wont regret it!

THANKS WILL

This is all!